C08K2003/2224

FLAME RETARDANT POLYMER COMPOSITIONS

The present invention relates to a flame retardant polymer composition comprising (A) 2.0 to 15.0 wt % of a copolymer of ethylene comprising units selected from the group consisting of methyl acrylate, methyl methacrylate or mixtures thereof; (B) 0 to 4.0 wt % of a polyethylene and/or polypropylene containing units originating from maleic acid anhydride; (C) 0.1 to 3.0 wt % of a silicon fluid and/or silicone gum; (D) 40.0 to 55.0 wt % of a magnesium hydroxide; (E) 2.0 to 15.0 wt % of a copolymer of ethylene and alpha olefin comonomer units having from 4 to 10 carbon atoms, which has a density of from 860 to 910 kg/m.sup.3, determined according to ISO 1183; (F) 18.0 to 35.0 wt % of a copolymer of ethylene and alpha olefin comonomer units having from 4 to 10 carbon atoms, which has a density of from 920 to 960 kg/m.sup.3, determined according to ISO 1183, and a melt flow rate MFR5 of from 0.05 to 2.50 g/10 min, determined according to ISO 1133 at a temperature of 190 C. and a load of 5.0 kg; and (G) 0 to 8.0 wt % of carbon black, wherein all weight percentages are based on the total weight of the flame retardant polymer composition; an article, such as a wire or cable, comprising said flame retardant polymer composition; and the use of said flame retardant polymer composition for the production of an article, such as a wire or cable.

METHOD FOR DISMANTLING BONDED MEMBER, BONDED MEMBER, AND EASILY DISMANTLED SILICONE-BASED LIQUID ADHESIVE
20240409777 · 2024-12-12 · ·

With regard to a bonded member in which a plurality of members are bonded together by a cured product obtained by curing a curable silicone-based liquid adhesive containing a hydroxide compound with a decomposition temperature of 180 C.-600 C. and a specific amount of particles which generate heat by means of microwaves, a dismantling method for the bonded member including a step in which the plurality of members are separated from each other by irradiating the cured product with microwaves and the bonded member is dismantled makes it possible to easily recycle the members because even though the cured product of the curable silicone-based liquid adhesive exhibits adhesiveness and/or sealing properties from room temperature to a high temperature of approximately 150 C., the adhesiveness and/or sealing properties of the cured product of the curable silicone-based liquid adhesive are reduced by irradiating with microwaves, the plurality of members are easily separated from each other in a short time with little energy consumption, and it is thus possible to dismantle the bonded member.

ARTICLES CONTAINING MELT PROCESSABLE CELLULOSE ESTER COMPOSITIONS COMPRISING ALKALINE FILLER

The present application discloses melt processable cellulose ester compositions comprising a cellulose ester, at least one alkaline additive, and at least one neutralizing agent. Plasticizers can be optionally used in the compositions. The present application also discloses processes for preparing the compositions and articles that can be made from the compositions. The compositions show improved degradation properties.

POLYETHYLENE OR POLYPROPYLENE ARTICLES
20250230306 · 2025-07-17 ·

An article in the form of a pipe, cable or geomembrane comprising polyethylene or polypropylene, and components A) and B), wherein component A) is a hindered amine light stabilizer containing a triazine residue, component B) is magnesium hydroxide which is present in an amount of 0.01% to 5% by weight relative to the weight of the polyethylene or polypropylene, and the weight ratio of component A) to component B) is 1:50 to 50:1, with the proviso that component B) is not a hydrotalcite.

Molding resin composition including chlorinated vinyl chloride-based resin, and molded article thereof

The present invention aims to provide a chlorinated vinyl chloride-based resin composition with excellent thermal stability and a molded body thereof. The present invention relates to a resin composition for molding, including a chlorinated vinyl chloride-based resin, a thermal stabilizer, and a polyalcohol and/or a partial ester of a polyalcohol. The chlorinated vinyl chloride-based resin has a chlorine content of 65% by weight or more and less than 72% by weight. The chlorinated vinyl chloride-based resin has, based on the total number of moles of a structural unit (a) CCl.sub.2, a structural unit (b) CHCl, and a structural unit (c) CH.sub.2, a proportion of the structural unit (a) of 17.5 mol % or less, a proportion of the structural unit (b) of 46.0 mol % or more, and a proportion of the structural unit (c) of 37.0 mol % or less. The thermal stabilizer contains at least one of a compound represented by the formula Ca.sub.1-xMg.sub.x(OH).sub.2 where x satisfies the inequality 0<x<1 and a compound represented by the formula Ca.sub.1-yMg.sub.yO where y satisfies the inequality 0<y<1.

FLAME-RETARDANT CROSSLINKED RESIN MOLDED BODY, FLAME-RETARDANT CROSSLINKABLE RESIN COMPOSITION, METHOD OF PRODUCING THESE, FLAME-RETARDANT SILANE MASTER BATCH, AND MOLDED ARTICLE

A production method, containing the step of mixing 0.02 to 0.6 part by mass of organic peroxide, an inorganic filler containing at least 20 to 350 parts by mass of metal hydrate, and 2 to 15.0 parts by mass of a silane coupling agent, based on 100 parts by mass of a polyolefin-based resin, and a silanol condensation catalyst, in which the inorganic filler has an X value specified by Formula (I) satisfies 7 to 850; and a flame-retardant crosslinkable resin composition and a flame-retardant crosslinked resin molded body produced by the production method; and a flame-retardant silane master batch and a molded article.


X=A/BFormula (I) wherein, A denotes a total amount of a product of a BET specific surface area (m.sup.2/g) of the inorganic filler and a blending amount of the inorganic filler, and B denotes a blending amount of the silane coupling agent.

FLAME-RETARDANT CROSSLINKED RESIN MOLDED BODY, FLAME-RETARDANT CROSSLINKABLE RESIN COMPOSITION, METHOD OF PRODUCING THESE, FLAME-RETARDANT SILANE MASTER BATCH, AND MOLDED ARTICLE

A production method, containing the step of mixing 0.02 to 0.6 part by mass of organic peroxide, an inorganic filler containing at least 20 to 350 parts by mass of metal hydrate, and 2 to 15.0 parts by mass of a silane coupling agent, based on 100 parts by mass of a polyolefin-based resin, and a silanol condensation catalyst, in which the inorganic filler has an X value specified by Formula (I) satisfies 7 to 850; and a flame-retardant crosslinkable resin composition and a flame-retardant crosslinked resin molded body produced by the production method; and a flame-retardant silane master batch and a molded article.


X=A/BFormula (I) wherein, A denotes a total amount of a product of a BET specific surface area (m.sup.2/g) of the inorganic filler and a blending amount of the inorganic filler, and B denotes a blending amount of the silane coupling agent.

CROSSLINKED RESIN MOLDED BODY, CROSSLINKABLE RESIN COMPOSITION, METHOD OF PRODUCING THESE, SILANE MASTER BATCH, AND MOLDED ARTICLE

A production method, containing the step of: mixing 0.02 to 0.6 parts by mass of an organic peroxide, 0.2 to 300 parts by mass of an inorganic filler, 2 to 15.0 parts by mass of a silane coupling agent, and a silanol condensation catalyst, based on 100 parts by mass of a polyolefin-based resin, in which the inorganic filler has an X value specified by Formula (I) satisfies 5 to 1050,


X=A/BFormula (I)

wherein, A denotes a total amount of a product of a BET specific surface area (m.sup.2/g) of the inorganic filler and a blending amount of the inorganic filler, and B denotes a blending amount of the silane coupling agent; and a crosslinkable resin composition and a crosslinked resin molded body produced by the production method; and a silane master batch and a molded article.

FLAME RETARDANT THERMALLY CONDUCTIVE POLYMER COMPOSITIONS WITH GOOD FLOW PROPERTY AND USES THEREOF
20170183475 · 2017-06-29 ·

The invention concerns compositions comprising (a) from about 20 wt % to about 80 wt % of a polymer component; (b) from about 10 wt % to about 70 wt % of a flame retardant component; and (c) from about 0.01 wt % to about 5 wt % of an acid component; wherein the combined weight percent value of all components does not exceed 100 wt %; wherein all weight percent values are based on the total weight of the composition; and wherein the composition has: (i) a thermal conductivity of at least about 1.5 W/mK for through plane thermal conductivity; (ii) flame retardancy of at least VI at 0.8 mm using the UL94 test standard; and (iii) melt volume flow rate of at least 10 g/cm3 using ASTM D 1238.

NANOPLATELET METAL OXIDES
20170158524 · 2017-06-08 ·

Nanoplatelet forms of metal hydroxide and metal oxide are provided, as well as methods for preparing same. The nanoplatelets are suitable for use as fire retardants and as agents for chemical or biological decontamination.