C08K2003/026

Antiviral articles

Provided is a textile made of filament yarn comprising a polymer composition that is durable and reusable having permanent or near-permanent antiviral properties and that includes a polymer, a metal ion, preferably a zinc and/or copper ion, and an optional phosphorus compound, wherein fibers and/or fabric formed from the polymer composition demonstrate antiviral properties and wherein the polymer is hygroscopic. The present disclosure also describes methods of forming the polymer compositions and methods of preparing fibers from the polymer composition.

Resin composition, molded body, electronic part, and electronic device

A resin composition is provided. The resin composition comprises an acrylonitrile butadiene styrene resin, a polystyrene resin, a polycarbonate resin, and a phosphorus compound. The amount of the polystyrene resin is equal to or greater than the amount of the acrylonitrile butadiene styrene resin. The amount of the polycarbonate resin is from 70 to 90 parts by mass with respect to 100 parts by mass of all the resins. The phosphorus compound contains a phosphazene compound, and the amount of the phosphazene compound is from 0.1 to 4.0 parts by mass with respect to 100 parts by mass of all the resins.

RESIN COMPOSITION AND PRODUCTION METHOD THEREOF

Provided is a halogen-free resin composition including a polyolefin resin, containing a phosphorus compound in an amount of 0.05 to 2.5 mass % as a phosphorus content; a NOR-type hindered amine in an amount of 0.05 to 5 mass %; and an inorganic filler in an amount of 3 to 50 mass %, respectively, with respect to the total amount of the resin composition, wherein a DTA (Differential Thermal Analysis) curve obtained by differential thermal analysis of the inorganic filler has an endothermic portion in a temperature range of 180 to 500° C.; and in the inorganic filler, a ratio value of a number of particles having a maximum diameter of 300 μm or more to a number of particles having a maximum diameter of 100 μm or more is ⅕ or less, or there are no particles having a maximum diameter of 100 μm or more.

PRODUCTION METHOD FOR CYCLIC OLEFIN COPOLYMER AND CATALYST COMPOSITION FOR COPOLYMERIZATION OF NORBORNENE MONOMER AND ETHYLENE
20230192930 · 2023-06-22 ·

A production method for a cyclic olefin copolymer which is capable of efficiently producing a cyclic olefin copolymer by copolymerizing monomers including a norbornene monomer and ethylene while suppressing the formation of a polyethylene-like impurity, and a catalyst composition for the copolymerization of a norbornene monomer and ethylene. Monomers including a norbornene monomer and ethylene are polymerized in the presence of a metal-containing catalyst, and the metal-containing catalyst has a structure in which a nitrogen atom is bonded to a transition metal of Group 4 of the periodic table and an atom of Group 15 of the periodic table.

Glow wire resistant polyamides
09828503 · 2017-11-28 · ·

The invention relates to the use of thermal plastic molding compositions comprising TABLE-US-00001 A) from 10 to 97% by weight of a thermoplastic polyamide, B) from 1 to 10% by weight of red phosphorus, C) from 0.15 to 6% by weight of a dialkylphosphinic salt, where the ratio of B) to C) is from 6:1 to 6:4, D) from 1 to 10% by weight of an ethylene copolymer as impact modifier comprisingas component D) a copolymer of D.sub.1) from 40 to 98% by weight of ethylene D.sub.2) from 2 to 40% by weight of a (meth)acrylate having from 1 to 18 carbon atoms, or/and D.sub.3) from 0 to 20% by weight of functional monomers selected from the group of the ethylenically unsaturated mono- or dicarboxylic acids or of the carboxylic anhydrides or epoxide groups, or a mixture of these, or an ethylene-(meth)acrylic acid copolymer neutralized with zinc up to an extent of 72%, E) from 0 to 5% by weight of talc powder with a median particle size (d.sub.50 value) below 7.5 μm, F) from 0 to 60% by weight of further additional substances,
where the sum of the percentages by weight of components A) to F) is 100%, for the production of flame-retardant, glow-wire-resistant moldings.

Glow wire resistant polyamides
09828503 · 2017-11-28 · ·

The invention relates to the use of thermal plastic molding compositions comprising TABLE-US-00001 A) from 10 to 97% by weight of a thermoplastic polyamide, B) from 1 to 10% by weight of red phosphorus, C) from 0.15 to 6% by weight of a dialkylphosphinic salt, where the ratio of B) to C) is from 6:1 to 6:4, D) from 1 to 10% by weight of an ethylene copolymer as impact modifier comprisingas component D) a copolymer of D.sub.1) from 40 to 98% by weight of ethylene D.sub.2) from 2 to 40% by weight of a (meth)acrylate having from 1 to 18 carbon atoms, or/and D.sub.3) from 0 to 20% by weight of functional monomers selected from the group of the ethylenically unsaturated mono- or dicarboxylic acids or of the carboxylic anhydrides or epoxide groups, or a mixture of these, or an ethylene-(meth)acrylic acid copolymer neutralized with zinc up to an extent of 72%, E) from 0 to 5% by weight of talc powder with a median particle size (d.sub.50 value) below 7.5 μm, F) from 0 to 60% by weight of further additional substances,
where the sum of the percentages by weight of components A) to F) is 100%, for the production of flame-retardant, glow-wire-resistant moldings.

FLAME-RETARDANT URETHANE RESIN COMPOSITION

The flame-retardant urethane resin composition contains a polyisocyanate compound, a polyol compound, a trimerization catalyst, a blowing agent, and an additive, wherein the additives include red phosphorus and a filler, and the filler has an aspect ratio of 5 to 50, an average particle diameter of 0.1 μm or larger, but smaller than 15 μm, and a melting point of 750° C. or higher.

Rubber composition, processing method thereof, and flame-retardant product using the same

The present invention discloses a rubber composition, a processing method for obtaining the rubber composition, and application of the composition in processing of flame-retardant products. The rubber composition includes a rubber matrix and essential components. The rubber matrix includes a branched polyethylene with a content represented as A, in which 0<A≤100, and an EPM and an EPDM with a total content represented as B, in which 0≤B<100. The essential components include 1.5 to 10 parts of a crosslinking agent and 40 to 300 parts of a flame-retardant agent. The rubber composition can be applied to production of flame-retardant products, such as flame-retardant cable, flame-retardant cool air hose for automobile, flame-retardant sealing strip, high-temperature-resistant flame-retardant conveyor belt, and flame-retardant waterproof coil. The products have good flame-retardant effects and mechanical properties.

SOFT SOLVENT-FREE FLAME-RETARDANT POLYURETHANE SYNTHETIC LEATHER AND PREPARATION METHOD THEREFOR

Disclosed are a soft solvent-free flame-retardant polyurethane synthetic leather and a preparation method therefor. The soft solvent-free flame-retardant polyurethane synthetic leather comprises an antifouling layer, a surface layer, an intermediate layer, a bonding layer and a base cloth in sequence from top to bottom, wherein the bonding layer is prepared from component A and an isocyanate; the molar ratio of —NCO in the isocyanate to —OH in the component A is 0.85-0.93; and the component A is composed of a polyhydric alcohol, an inhibition-type catalyst, a flame retardant, a filler and a viscosity modifier in parts by weight.

Disclosed are a soft solvent-free flame-retardant polyurethane synthetic leather and a preparation method therefor. The soft solvent-free flame-retardant polyurethane synthetic leather comprises an antifouling layer, a surface layer, an intermediate layer, a bonding layer and a base cloth in sequence from top to bottom, wherein the bonding layer is prepared from component A and an isocyanate; the molar ratio of —NCO in the isocyanate to —OH in the component A is 0.85-0.93; and the component A is composed of a polyhydric alcohol, an inhibition-type catalyst, a flame retardant, a filler and a viscosity modifier in parts by weight. The polyurethane synthetic leather prepared by the present invention has daily life antifouling properties, a good durability, is soft to the touch, is strongly skin-friendly, and has a very superior flame-retardant performance, and also has excellent antifouling, scratch resistance and flexure resistance properties; the production process is simple, efficient and environmentally friendly and same can satisfy market demands.

Flame-retardant rigid polyurethane foam

A flame-retardant rigid polyurethane foam contains a flame retardant, the foam having a ratio of the maximum peak intensity ratio (P1) of the foam after moist heat treatment of the foam for one week at a temperature of 80° C. and a humidity of 85% to the maximum peak intensity ratio (P2) of the foam before this moist heat treatment of 85% or more (P1/P2x100). The P1 and P2 each refer to the ratio of the maximum peak intensity of 1390 to 1430 cm.sup.−1 to the maximum peak intensity of 1500 to 1520 cm.sup.−1 when the infrared absorption spectrum is measured at a position 5 to 10 mm from the surface of the foam, and the average intensity of 1900 to 2000 cm.sup.−1 is adjusted to zero.