C08J2469/00

Free-flowing solid encapsulated drag reducing additives

A process of manufacturing a free-flowing solid encapsulated drag reducing additive comprises: forming a solid drag reducing additive from one or more C.sub.5-20 olefin monomers; dispersing the solid drag reducing additive in a liquid medium to form a dispersion, the liquid medium comprising an encapsulant and a non-solvent; grinding the solid drag reducing additive in the liquid medium under non-cryogenic grinding conditions to form an encapsulated drag reducing additive in a particulate form; and removing the non-solvent by a drying technique including spray drying, flash drying, or rotating disc drying to form the free-flowing solid encapsulated drag reducing additive.

Storage-stable polyurethane potting compound for embedding of hollow fibres in the production of filter elements
11041040 · 2021-06-22 · ·

Polyurethane encapsulating compounds for the embedding of hollow fibers of filter elements are provided. These are obtainable by mixing a polyol component (A) and an isocyanate component (B) to give a reaction mixture and reacting the mixture to completion to give the polyurethane encapsulating compound, wherein the polyol component (A) comprises (a1) at least one fatty-acid-based polyol, (a2) at least one amine compound having at least one tertiary nitrogen atom and at least one isocyanate-reactive hydrogen atom and (a3) at least one metal compound that functions as a polyurethane catalyst, wherein the polyurethane catalyst (a3) does not comprise any tin, lead and/or mercury and the isocyanate component (B) comprises at least one aromatic isocyanate having at least two isocyanate groups. Further provided is a method for producing filter elements using the polyurethane encapsulating compounds and the use of the polyurethane encapsulating compounds for the embedding of hollow fibers.

Optical film with high slip property and excellent property of blocking UV light, and polarizing plate comprising the same

The optical film according to the present invention has a feature that it has excellent property of blocking UV light and exhibits high slip property and thus enables self-winding even while using an acrylic resin not containing monomers having a ring structure.

Process for producing foam molded parts with aesthetic surfaces by foam injection molding

The invention relates to a process for producing a foam molded part, wherein a foamable material S comprising a thermoplastic polymer matrix M and at least one foaming agent F is foamed by foam injection molding. The polymer matrix M is preferably based on at least one thermoplastic styrene copolymer, such as ABS and ASA, and wherein the at least one foaming agent F is selected from chemical foaming agents, releasing carbon dioxide, and physical foaming agents, being carbon dioxide or nitrogen.

FIBER REINFORCED COMPOSITION WITH GOOD IMPACT PERFORMANCE AND FLAME RETARDANCE
20210155765 · 2021-05-27 ·

A composition includes a polymer base resin, a fiber filler including a sizing agent component, and an additive. The sizing agent component includes a sizing agent and a reactive aid. The composition exhibits a notched Izod impact strength of 140 to 190 J/m, and an unnotched impact strength of 500 to 1200 J/m when tested in accordance with ASTM D256.

METHODS OF MANUFACTURING ARTICLES UTILIZING FOAM PARTICLES
20210147650 · 2021-05-20 ·

Methods for manufacturing components of articles, including articles of footwear, apparel, and sporting equipment are provided. The disclosed methods comprise extruding a first composition comprising a plurality of foam particles suspended in a first material, wherein each particle of the plurality of foam particles is formed of a foamed second polymeric material; and solidifying the extruded first composition, forming a component. Also disclosed are first compositions comprising a first material and a plurality of foam particles comprising a foamed second polymeric material suspended in the first material. Articles and methods of manufacturing articles using the disclosed methods and compositions are also provided. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.

INORGANIC MATERIAL-REINFORCED THERMOPLASTIC POLYESTER RESIN COMPOSITION AND METHOD FOR PRODUCING SAME
20230407019 · 2023-12-21 · ·

An inorganic material-reinforced thermoplastic polyester resin composition from which a molding with high rigidity and high strength having less appearance defects such as floating of inorganic reinforcing material and less warp deformation and having a uniform textured appearance without irregularities can be obtained comprises specific amounts of a polybutylene terephthalate resin (A), a polyethylene terephthalate resin (B), a copolymerized polybutylene terephthalate resin (C), a copolymerized polyethylene terephthalate resin (D), a polycarbonate-based resin (E), a glass fiber-based reinforcing material (F), and a transesterification inhibitor (G), respectively, wherein glass fiber-based reinforcing material (F) comprises specific amounts of a flat cross-section glass fiber (F1) and a milled short glass fiber (F2), respectively, wherein glass fiber-based reinforcing material (F) in the resin composition has a weight average fiber length Lw of 200 to 700 m, and wherein the inorganic material-reinforced thermoplastic polyester resin composition has a melt viscosity in a specific range.

Thermally conductive polymer resin composition based on styrenics with low density

Thermally conductive polymer (TCP) resin compositions are described, comprising components (X) and (Y): 90 to 99.9% component (X) comprising components (I) and (II): 60 to 85% matrix polymer (I) comprising styrenic polymers (F) selected from: ABS resins, ASA resins, and elastomeric block copolymers of the structure (S(B/S)).sub.nS; 15 to 40% thermally conductive filler material (II) (D.sub.50 1 to 200 ), consisting of a ceramic material and/or graphite; 0.1 to 10% chemical foaming agent (Y). Shaped articles made thereof can be used for automotive applications, as a heat sink for high performance electronics, LED sockets or electrical and electronic housings.

High heat copolycarbonate compositions having enhanced optical properties, articles formed therefrom, and methods of manufacture

A thermoplastic composition comprises: a copolycarbonate comprising bisphenol A carbonate units and second carbonate units of the formula (I) and optionally, a bisphenol A homopolycarbonate; wherein the second carbonate units are present in an amount of 10 to 49 mol % based on the sum of the moles of the copolycarbonate and the bisphenol A homopolycarbonate, the copolycarbonate comprises less than 2 ppm by weight of each of an ion of lithium, sodium, potassium, calcium, magnesium, ammonium, chlorine, bromine, fluorine, nitrite, nitrate, phosphite, phosphate, sulfate, formate, acetate, citrate, oxalate, trimethylammonium, and triethylammonium, as measured by ion chromatography, and the thermoplastic composition has a bisphenol A purity of at least 99.6%, or at least 99.7% as determined by high performance liquid chromatography. The thermoplastic composition has a Vicat B120 of 155 C. or higher; and an increase in yellowness index of less than 10 during 1000 hours of heat aging at 155 C. ##STR00001##

MOLDED ARTICLE AND PRODUCTION METHOD THEREFOR
20210039291 · 2021-02-11 · ·

A molded product having both small specific gravity and high stiffness and also suffering few sink marks is described along with a method for the production thereof, where the molded product includes a porous body (A) integrated with an injection molded body (B), the porous body (A) having an apparent density of 0.05 to 0.8 g/cm.sup.3, the average thickness (tA) of the porous body (A) and the average thickness (tB) of the injection molded body (B) satisfying the relation tA3tB, and the injection molded body (B) covering at least one face of the porous body (A).