Patent classifications
Y10T442/2008
Intermediate materials produced by means of intertwinning by interlacing voile yarns
The present invention provides an intermediate material composed of an assembly of overlapping and interlaced tapes, characterized in that at least some of the tapes, preferably all of the tapes, known as veiled tapes, are composed of a series of reinforcing yarns or filaments that extend in a direction parallel to the length of the tape to form a unidirectional sheet that is associated on each of its faces with a nonwoven formed from thermoplastic fibers, said two nonwovens providing said veiled tape with cohesiveness because of their thermoplastic nature, to a production method using said material for producing composite parts, and to the composite parts obtained.
HIGH TENACITY HIGH MODULUS UHMWPE FIBER AND THE PROCESS OF MAKING
Processes for preparing ultra-high molecular weight polyethylene (UHMW PE) filaments and multi-filament yarns, and the yarns and articles produced therefrom. Each process produces UHMW PE yarns having tenacities of 45 g/denier to 60 g/denier or more at commercially viable throughput rates.
Adhesive tape made of silicone intended for medical applications
An adhesive tape (1) made of silicone is intended for medical applications. The tape (1) has a sheet material (12) based on nonwoven fibers, coated on an internal face (12a) intended to be in contact with the skin, with a barrier membrane (14) which adheres to the sheet material, based on crosslinked silicone polymer, and with a layer (16) of atraumatic and biocompatible silicone adhesive gel, and on an external face (12b), with a layer (18) of a nonstick and waterproof polymer based on a fluorosilicone or fluorocarbon polymer.
REMOTE FLUORINATION OF FIBROUS FILTER WEBS
A method of making a fluorinated fibrous web, which method includes providing a nonwoven web 22 that contains polymeric fibers, creating a plasma that contains fluorine atoms at a first location 14, and contacting the nonwoven web with products from the plasma at a second location 26 remote from the first location 14. The method avoids exposure of the web to the plasma and hence expands the manufacturing processing window. Webs so fluorinated have a different C.sub.3F.sub.4H.sup.+ to C.sub.2F.sub.5.sup.+ ratio when compared to locally fluorinated webs having similar levels of surface fluorination. The remote fluorinated webs can be subsequently charged electrically to provide a good performing electret filter 40 suitable for use in an air purifying respirator 30. Webs fluorinated in accordance with this invention also may exhibit good performance even after being aged at high temperatures.
Amino resin film and method of producing the same
An amino resin film, obtained by at least partial curing of an aminoplastic-nonwoven impregnate having a residual moisture of at least 4.0% by weight, comprising, in each case in relation to the total weight of the aminoplastic-nonwoven impregnate, (a) 5.0% by weight to 95.0% by weight of a partially cured aminoplastic resin and (b) 5.0% by weight to 95.0% by weight of a nonwoven, wherein the nonwoven comprises polyester fibers and polyamide fibers, and wherein the amino resin film has a residual moisture of less than 4.0% by weight.
Friction material for applying friction in liquid medium, and associated device and method
A friction material intended to equip a device for applying friction in a liquid medium, including a fiber mat impregnated with a heat-curable resin. The fiber mat consists of fibers whose length is greater than or equal to 12 mm, and is teased, coated and needled. The friction material features a porosity greater than or equal to 30% by volume and less than or equal to 60% by volume. The friction material includes activated charcoal loads whose specific surface is between 500 m2/g and whose mass content in the friction material is greater than or equal to 5% by weight and less than or equal to 15% by weight.
Coated non-woven fabrics from inorganic fibers and functional, decorative layers for floor coverings, ceiling coverings and wall coverings manufactured therefrom
The present invention relates to a non-woven fabric made of inorganic fibers, which has a coating of at least two layers on one of both surfaces, wherein
(i) the non-woven fabric made of inorganic fibers has a thickness of at least 0.2 mm,
(ii) the first layer of the coating comprises particles, whose particle size is between 50 and 100 m,
(iii) the second layer of the coating, which is applied onto the first layer, comprises particles, wherein more than 90% of the particles have a particle size of less than 20 m.
The non-woven fabric made of inorganic fibers according to the invention, in particular glass non-woven fabrics, are in particular suitable for producing decorative coatings for floor coverings, ceiling coverings and wall coverings.
Dissolvable fibrous web structure article comprising active agents
The personal care compositions of the present invention are in the form of an Article comprising a dissolvable fibrous web structure. The fibers of the dissolvable fibrous web structure comprise a surfactant; a water soluble polymeric structurant; and a plasticizer. Additionally the ratio of the water soluble water soluble polymeric structurant to the active agent in the fiber is 3.5 or less.