Polymer compositions, fibers and threads with petrolatum and/or oleic acid-containing oils

Abstract

This invention relates to a polymer composition containing at least one polymer and at least one agent, formed bodies having such a polymer composition, the use of the formed bodies and polymer compositions, and corresponding threads, nonwoven materials, clothing articles, and medical aids.

Claims

1. A thread or textile surface comprising fibers, wherein the fibers comprise a polymer composition, said polymer composition comprising a polymer; at least one agent selected from the group consisting of petrolatum, an oil or a fat, wherein the oil or the fat contains at least 25 wt % oleic acid, a non-saponifiable lipid from an oil, wherein the oil contains at least 25 wt % oleic acid, and mixtures thereof; and another agent selected from the group consisting of dicaprylyl carbonate, cetyl isononanoate, isopropyl isostearate, isostearyl isostearate, isopropyl palmitate, and mixtures thereof.

2. The thread or textile surface according to claim 1, wherein the at least one agent selected is from the group consisting of petrolatum, the oil, the non-saponifiable lipid from an oil, and mixtures thereof.

3. The thread or textile surface according to claim 1, wherein the polymer is a biopolymer.

4. The thread or textile surface according to claim 3, wherein the polymer is selected from the group consisting of cellulose, modified cellulose, viscose, polylactides, modifications thereof, derivatives thereof, and mixtures thereof.

5. The thread or textile surface according to claim 1, wherein the at least one agent is petrolatum.

6. The thread or textile surface according to claim 1, wherein the polymer composition contains petrolatum and the oil that contains at least 25 wt % oleic acid.

7. The thread or textile surface according to claim 1, wherein the oil contains at least 35 wt % oleic acid, at least 20 wt % palmitic acid, at least 3 wt % palmitoleic acid, at least 5 wt % linoleic acid, at least 5 wt % stearic acid and at least 0.5 wt % cis-9-octadecenoic acid.

8. The thread or textile surface according to claim 1, wherein the oil is manila oil, olive oil, and/or rapeseed oil.

9. The thread or textile surface according to claim 8, wherein the rapeseed oil is canola oil.

10. The thread or textile surface according to claim 1, wherein the polymer composition contains the non-saponifiable lipid.

11. The thread or textile surface according to claim 1, wherein the polymer composition contains shea butter.

12. The thread or textile surface according to claim 1, wherein the polymer composition contains petrolatum and the fat that contains at least 25 wt % oleic acid.

13. The thread or textile surface according to claim 12, wherein the polymer composition contains petrolatum and shea butter.

14. The thread or textile surface according to claim 1, wherein the at least one agent serves as a skin penetration enhancer.

15. The thread or textile surface according to claim 1, wherein the at least one agent is an occlusive agent.

16. The thread or textile surface according to claim 1, wherein the fibers are staple fibers, monofilaments, multifilaments, or continuous multifilaments.

17. The textile surface according to claim 1, wherein the fibers are present in the form of thread, or wherein the textile surface is a nonwoven material or a felt.

18. The textile surface according to claim 1, wherein the textile surface is a knitted fabric, a mesh fabric, or a woven fabric.

19. A clothing article, sports aid, or medical aid containing the thread or textile surface according to claim 1 or containing fibers, wherein the fibers comprise a polymer composition comprising a polymer; at least one agent selected from the group consisting of petrolatum, an oil or a fat, wherein the oil or the fat contains at least 25 wt % oleic acid, a non-saponifiable lipid from an oil, wherein the oil contains at least 25 wt % oleic acid, and mixtures thereof; and another agent selected from the group consisting of dicaprylyl carbonate, cetyl isononanoate, isopropyl isostearate, isostearyl isostearate, isopropyl palmitate, and mixtures thereof.

20. The clothing article or sports aid according to claim 19, wherein the clothing article or sports aid is a jersey, sports pants, underpants, an undershirt, or a stocking.

21. The medical aid according to claim 19, wherein the medical aid is a bandage or a compression stocking.

22. The thread or textile surface of claim 1, wherein the at least one agent and the another agent are present as micro-inclusions in the polymer composition.

Description

(1) According to the invention, the polymer composition therefore contains, in addition to the polymer, at least one agent, wherein the agent can be petrolatum, and/or an oil, wherein the oil contains at least 25 wt % oleic acid. Obviously the presence of these agents and of mixtures of these agents is therefore also encompassed by the invention.

(2) Surprisingly, if was found that such agents can be introduced in a polymer composition and as additives therein; exert their effect, in particularly directly, on the underlying skin if the polymer composition is in contact with the skin in the form of corresponding products such as clothing articles and medical aids. In an advantageous manner, these agents are in particular capable of preventing dehydration of the skin. The agents can also be used to enable other agents to penetrate the skin.

(3) It was found that in particular polymer compositions made of biopolymers, for example cellulose, can be loaded especially well with petrolatum and/or with an aforementioned oil or fat or an aforementioned non-saponifiable lipid, specifically in weight percentages of in particular up to 25% and more for petrolatum and in particular up to 35% and more for the oils, based on cellulose. For example, very good results have been obtained with weight percentages of up to 23% in particular for petrolatum and up to 11% in particular for the oils, based on cellulose.

(4) The polymer composition preferably contains the petrolatum in a proportion of at least 1 wt % (based on the total weight of the polymer composition).

(5) The polymer composition preferably contains the petrolatum in a proportion of at least 5 wt % (based on the total weight of the polymer composition).

(6) The polymer composition preferably contains the petrolatum in a proportion of at least 10 wt % (based on the total weight of the polymer composition).

(7) The polymer composition preferably contains the petrolatum in a proportion of at least 1 wt % and at most 40 wt % in particular at most 35 wt % (based on the total weight of the polymer composition). The polymer composition preferably contains the petrolatum in a proportion of at most 40 wt %, in particular at most 35 wt % (based on the total weight of the polymer composition).

(8) The polymer composition preferably contains the petrolatum in a proportion of at least 1 wt % and at most 30 wt % in particular at most 25 wt % (based on the total weight of the polymer composition). The polymer composition preferably contains the petrolatum in a proportion of at most 30 wt %, in particular at most 25 wt % (based on the total weight of the polymer composition).

(9) The polymer composition preferably contains the petrolatum in a proportion of at least 1 wt % and at most 23 wt % (based on the total weight of the polymer composition). The polymer composition preferably contains the petrolatum in a proportion of at most 23 wt %, (based on the total weight of the polymer composition).

(10) The polymer composition preferably contains the oil in a proportion of at least 1 wt % (based, on the total weight of the polymer composition).

(11) The polymer composition preferably contains the oil in a proportion of at least 5 wt % (based on the total weight of the polymer composition).

(12) The polymer composition preferably contains the oil in a proportion of at least 1 wt % and at most 45 wt %, in particular at most 40 wt % (based on the total weight of the polymer composition). The polymer composition preferably contains the oil in a proportion of at most 45 wt %, in particular at most 40 wt % (based on the total weight of the polymer composition).

(13) The polymer composition preferably contains the oil in a proportion of at least 1 wt % and at most 35 wt %, in particular at most 20 wt % (based on the total weight of the polymer composition). The polymer composition preferably contains the oil in a proportion of at most 35 wt %, in particular at most 20 wt % (based on the total weight of the polymer composition).

(14) The polymer composition preferably contains the oil in a proportion of at least 1 wt % and at most 15 wt %, in particular at most 12 wt % (based on the total weight of the polymer composition). The polymer composition preferably contains the oil in a proportion of at most 15 wt %, in particular at most 12 wt % (based on the total weight of the polymer composition).

(15) The polymer composition preferably contains the oil in a proportion of at least 1 wt % and at most 11 wt % (based on the total weight of the polymer composition). The polymer composition preferably contains the oil in a proportion of at most 11 wt % (based on the total weight of the polymer composition).

(16) Without being bound by theory, in particular the preferred copolymers (e.g., cellulose) are capable of forming cavities that serve as loading zones for the agents. In an advantageous manner, a special production technique is thus unnecessary for the biopolymers and the fibers produced therefrom.

(17) Surprisingly, it could also be confirmed that as a group, the agents according to the invention contained in the polymer composition as additives have good stability during the application period and are thus able to exert their effect throughout this period.

(18) It has furthermore surprisingly been found that the polymer composition according to the invention, in particular if they contain biopolymers, in particular if they contain cellulose or are cellulose based, give rise to fibers that, despite the addition of at least one of the additives according to the invention, show the same outstanding properties as pure fibers, in particular cellulose fibers, in terms of their fineness, tear strength, tear strength variation, elongation, wet expansion, tear strength as related to fineness, wet tear strength as related to fineness, loop tear strength as related to fineness, wet chafing variation, and wet moduli.

(19) Nevertheless these fibers simultaneously showed the positive properties imparted by the at least one additive.

(20) The fibers are preferably produced from a spinning solution. In spite of the addition of at least one additive according to the invention, it was surprisingly found a spinning solution does not undergo any degradation, in particular if it contains cellulose, and more particularly if the spinning solution is made from cellulose, N-methylmorpholine-N-oxide (NMMNO), and water as main constituents.

(21) Suitable production processes are known from DE 10 2007 054 702 A1, in particular for polymer compositions that contain cellulose or modified cellulose, and in particular in the form of formed bodies.

(22) The polymer composition can contain polymers as they are typically used for the production of fibers, filaments, threads, nonwoven materials, clothing articles, and medical aids such as bandages and compression stockings.

(23) The polymer is preferably a biopolymer, particularly preferably a technical biopolymer.

(24) In a preferred embodiment, the polymer is selected from the group consisting cellulose, modified cellulose, polyamide, polyacrylic, polyester, polyurethane, polyethylene, polypropylene, modifications thereof and mixtures thereof. In a preferred embodiment, the polymer is selected from the group consisting of cellulose, modified cellulose, polyamide, polyacrylic, polyester, modifications thereof and mixtures thereof.

(25) In a preferred embodiment, the polymer is selected from the group consisting of cellulose, modified cellulose, viscose, polylactides, modifications thereof, derivatives thereof, and mixtures thereof.

(26) In a preferred embodiment, the polymer is cellulose, modified cellulose, viscose, or polylactide. In a preferred embodiment, the polymer is cellulose or polylactide.

(27) In an alternative embodiment, the polymer is a starch polymer.

(28) In a preferred embodiment, the polymer is biodegradable. The biodegradable polymer is preferably selected form the group consisting of cellulose, modified cellulose, latex, protein of vegetable or animal origin, and mixtures thereof. Polycondensation and polymerization polymers, polyurethanes, polyesters, polyacrylics, and mixtures of these materials may also be used.

(29) However, in an alternative embodiment provision can also be made such that the polymer composition according to the invention also contains non-biodegradable polymers. Examples of such polymers are polyamides, aromatic polyamides, in particular aramides, polyacrylonitrile, polyester, or polyvinyl alcohols.

(30) In a preferred embodiment, the polymer is cellulose, modified cellulose, or modifications thereof and mixtures thereof. In a preferred embodiment the polymer is cellulose or modified cellulose.

(31) Cellulose is a polymer forming a hydrophilic network, the supramolecular structures of which are stabilized both in solution and in a solid via likewise hydrophilic hydrogen bonds. In contrast, the agents that are used in this invention are selected from the group consisting of internal occlusive agents, external occlusive agents, and moisturizing agents, which are instead nonpolar, lipophilic organic compounds. In the scope of this invention, it has now been surprisingly found that such nonpolar, lipophilic agents can be introduced into the cellulose filaments and fibers.

(32) It is likewise surprising that the lipophilic organic agents incorporated in the hydrophilic cellulose network can be distributed homogeneously and in microparticle form in such a way that a precisely adjustable and uniform storage as well as controlled release of these nonpolar lipophilic organic agents from the fibers is made possible.

(33) The polymer composition according to the invention is preferably produced from a spinning solution. The agents are preferably present as micro-inclusions in the polymer composition.

(34) Modified cellulose is understood to mean is particular carboxyethyl cellulose, methyl cellulose, nitrate cellulose, copper cellulose, viscose, i.e., cellulose xanthogenate, cellulose carbamate, and cellulose acetate.

(35) In an alternative embodiment, the polymer is a polyamide, a polyacrylic, a polyester, or modifications thereof or a derivative thereof, and mixtures thereof. In a preferred embodiment, the polymer is a polyamide or modifications thereof. In a preferred embodiment, the polymer is a polyacrylic or modifications thereof. In a preferred embodiment, the polymer is a polyester or modifications thereof.

(36) In a preferred embodiment, the polymer is a polyamide or a derivative thereof. In a preferred embodiment, the polymer is a polyacrylic or a derivative thereof. In a preferred embodiment, the polymer is a polyester or a derivative thereof.

(37) Examples of polycondensation and polymerization polymers are polyamides that are substituted with methyl, hydroxy, or benzyl groups, for example. Examples of polyurethanes are those that are synthesized on the basis of polyether polyols.

(38) In an alternative embodiment, the polymer is a polylactide or a modifications [sic] thereof or a derivatives [sic] thereof. In an alternative embodiment, the polymer is a polylactide.

(39) The at least one agent is preferably incorporated in the polymer composition and is in particular not applied to the carrier matrix by impregnation or coating.

(40) As it follows from the preceding description, the fibers of the thread according to the invention or of the textile surface according to the invention can have any combination of the aforementioned preferred embodiments of the polymers and of the aforementioned preferred embodiments of the aforementioned agents in particular of the petrolatum, of the fats, of the oils, of the non-saponifiable lipids, and also of the other agents.

(41) This invention also relates to a formed body or to a plurality of formed bodies comprising a polymer composition according to the invention.

(42) An advantage of the formed bodies according to the invention, in which the additives according to the invention are present, is the uniform incorporation of the agents in the formed body, in particular in the fiber matrix, given the different fiber cross sections that can be produced. Processing as a monofilament thread or a continuous filament thread is also possible, thus permitting a use for technical articles.

(43) The formed bodies according to the invention can be used for the most diverse purposes.

(44) The formed body is preferably a fiber. The fiber is preferably a staple fiber, a monofilament, a multifilament, or a continuous multifilament.

(45) Preference is therefore given to a thread according to the invention or to a textile surface according to the invention in which the fibers are staple fibers, monofilaments, multifilaments, or continuous multifilaments.

(46) In particular if the fiber is a cellulose fiber, if can be constructed as shown in FIGS. 1 and 2 of DE 10 2007 054 702 A1, for example. The at least one agent can be present in the form of dispersed inclusions in a matrix, in particular a cellulose matrix.

(47) The at least one agent is preferably stabilized with at least one hydrophobic thickening agent.

(48) In particular if a textile surface according to the invention is produced from the fibers, this textile can not only be composed of the fibers according to the invention but can also contain additional components such as cotton, lyocell, rayon, carbacell, polyester, polyamide, cellulose acetate, acrylate, polypropylene, or mixtures thereof.

(49) This invention also relates to the use of a formed body according to the invention for producing threads.

(50) This invention also relates to a thread containing a formed body according to the invention. This invention also relates to a thread containing the formed body according to the invention as a basic component. This invention also relates to a thread consisting of formed bodies according to the invention.

(51) This invention also relates to a nonwoven material containing a formed body according to the invention. This invention also relates to a nonwoven material containing a thread according to the invention.

(52) Preference is therefore given to a thread according to the invention or to a textile surface according to the invention, in which the fibers are present in the form of thread or in which the textile surface is a nonwoven material or a felt.

(53) Preference is given to a textile surface according to the invention, in which the fibers are present in the form of thread.

(54) The textile surface is preferably a nonwoven material or a felt. The textile surface is preferably a nonwoven material. The textile surface is preferably a felt.

(55) Preference is therefore given to a thread according to the invention or to a textile surface according to the invention, in which the textile surface is a knitted fabric, a mesh fabric, or a woven fabric.

(56) The textile surface is preferably a knitted fabric, a mesh fabric, or a woven fabric. The textile surface is preferably a knitted fabric. The textile surface is preferably a mesh fabric. The textile surface is preferably a woven fabric. The textile surface is preferably a knitted fabric or a mesh fabric. The textile surface is preferably a knitwear.

(57) This invention also relates to clothing articles, sports aids, or medical aids containing a thread according to the invention or a textile surface according to the invention or containing fibers, wherein the fibers comprise a polymer composition containing a polymer and at least one agent selected from the group consisting of petrolatum, an oil, wherein the oil contains at least 25 wt % oleic acid, and mixtures thereof.

(58) This invention also relates to clothing articles, sports aids, or medical aids containing threads, wherein the threads comprise a polymer composition Containing a polymer, petrolatum, and shea butter.

(59) This invention also relates to clothing articles sports aids, or medical aids containing a thread according to the invention or a textile surface according to the invention or containing fibers, wherein the fibers comprise a polymer composition containing a polymer and at least one agent selected from the group consisting of petrolatum, an oil, wherein the oil contains at least 25 wt % oleic acid, a non-saponifiable lipid from an oil, wherein the oil contains at least 25 wt % oleic acid, shea butter, and mixtures thereof

(60) The invention also relates to clothing articles, sports aids, or medical aids containing a thread according to the invention or a textile surface according to the invention.

(61) The clothing article or sports aid is preferably a jersey, sports pants, underpants, an undershirt, or a stocking. Alternatively, the clothing article can also be a glove.

(62) The medical aid is preferably a bandage or a compression stocking. The medical aid is preferably a bandage. The medical aid is preferably a compression stocking.

(63) This invention also relates to a clothing article or to a medical aid containing a formed body according to the invention or a thread according to the invention. These are preferably clothing articles or medical aids that are, at least partially, in direct contact with the skin when worn.

(64) This invention also relates to a clothing article containing a formed body according to the invention or a thread according to the invention. The clothing article is preferably underwear, in particular underpants, an undershirt, or a stocking. Alternatively, the clothing article can also be a glove.

(65) This invention also relates to a medical aid containing a formed body according to the invention or a thread according to the invention. The medical aid is preferably a compression stocking or a bandage.

(66) This invention also relates to a sports bandage and other sports aids containing a formed body according to the invention or a thread according to the invention. This invention also relates to a sports bandage and other sports aids containing a textile surface according to the invention.

(67) This invention also relates to the use of a polymer composition according to the invention or of a formed body according to the invention in a clothing article, in a sports aid, or in a medical aid for skin care.

(68) This invention also relates to the use of a polymer composition according to the invention or of a formed body according to the invention in a clothing article, in a sports aid, or in a medical aid for preventing the skin from drying out.

(69) This invention also relates to the use of fibers to produce threads or textile surfaces, in particular felts or nonwovens in which the fibers comprise a polymer composition containing a polymer and at least one agent selected from the group consisting of petrolatum, an oil, wherein the oil contains at least 25 wt % oleic acid, a non-saponifiable lipid from an oil, wherein the oil contains at least 25 wt % oleic acid, shea butter, and mixtures thereof.

(70) This invention also relates to the use of a thread according to the invention or of a textile surface according to the invention in a clothing article, in a sports aid, or in a medical aid for skin care and/or for preventing the skin from drying out.

(71) This invention also relates in particular to the following aspects:

(72) Aspect 1: Polymer composition containing a polymer and at least one agent selected from the group consisting of petrolatum, an oil, wherein the oil contains at least 25 wt % oleic acid, a non-saponifiable lipid from an oil, wherein the oil contains at least 25 wt % oleic acid, shea butter, and mixtures thereof.

(73) Aspect 2: Polymer composition containing a polymer petrolatum, and shea butter.

(74) Aspect 3: Polymer composition containing a polymer and at least one agent selected from the group consisting of petrolatum, an oil, wherein the oil contains at least 25 wt % oleic acid, and mixture thereof.

(75) Aspect 4: Polymer composition according to aspect 1, wherein the polymer is selected from the group consisting of cellulose, modified cellulose, polyamide, polyacrylic, polyester, polyurethane, polyethylene, polypropylene, modifications thereof, derivatives thereof, and mixtures thereof.

(76) Aspect 5: Polymer composition according to any one of the preceding aspects, wherein the at least one agent serves as a skin penetration enhancer.

(77) Aspect 6: Polymer composition according to any one of the preceding aspect, wherein the at least one agent is an occlusive agent.

(78) Aspect 7: Polymer composition according to any one of the preceding aspects, wherein the at least one agent is petrolatum.

(79) Aspect 8: Polymer composition according to any one of the preceding aspects, wherein the at least one agent is petrolatum, wherein the petrolatum contains at most 20 wt % saturated, straight chain hydrocarbons with 20 to 45 carbon atoms.

(80) Aspect 9: Polymer composition according to any one of the preceding aspects, wherein the oil contains at least 35 wt % oleic acid, at least 20 wt % palmitic acid, at least 3 wt % palmitoleic acid, at least 5 wt % linoleic diacid, at least 5 wt % stearic diacid, and at least 0.5 wt % cis-9-octadecenoic acid.

(81) Aspect 10: Polymer composition according to any one of the preceding aspects, wherein the oil is marula oil.

(82) Aspect 11: Polymer composition according to any one of the preceding aspects, wherein the oil is canola oil.

(83) Aspect 12: Polymer composition according to any one of the preceding aspects, containing petrolatum and marula oil.

(84) Aspect 13: Polymer composition according to any one of the preceding aspects, containing petrolatum and canola oil.

(85) Aspect 14: Shaped body comprising a polymer composition according to any one of the preceding aspects.

(86) Aspect 15: Shaped body according to aspect 14, wherein the shaped body is a fiber.

(87) Aspect 16: Shaped body according to aspect 15, wherein the fiber is a staple fiber, a monofilament, a multifilament, or a continuous multifilament.

(88) Aspect 17: Use of a formed body according to any one of aspects 14 through 16 for producing threads or textile surfaces, in particular felts or nonwovens.

(89) Aspect 18: Thread containing a formed body according to any one of aspects 14 through 16.

(90) Aspect 19: Nonwoven material containing a formed body according to any one of aspects 14 through 16 or a thread according to aspect 18.

(91) Aspect 20: Clothing article or medical aid containing a formed body according to any one of aspects 14 through 16 or a thread according to aspect 18.

(92) Aspect 21: Use of a polymer compound according to any one of aspects 1 through 13 or of a formed body according to any one of aspects 14 through 16 or of a thread according to aspect 18 or of a nonwoven material according to Aspect 19 in a clothing article, in a sports aid, or in a medical aid for skin care.