Patent classifications
C08J3/18
Copolyesters plasticized with polymeric plasticizer
Polyester-based films contain certain copolyesters (A) and polyester plasticizers (B). The copolyesters (A) may be selected from those in which the force required to stretch a film of the copolyester (A) by itself, from 2× to 5×, increases by less than 200%. The polyester plasticizers (B) have a weight-average molecular weight of 900 to 12,000 g/mol, and contain (i) a diol component comprising residues of diols having 2 to 8 carbon atoms, and (ii) a diacid component comprising residues of dicarboxylic acids having 4 to 12 carbon atoms. These polyester-based films are particularly useful for preparing ultra-thin LCD or OLED polarizers, because they can be stretched very thin with a high stretch ratio at lower temperatures.
LIQUID PLASTICISING COMPOSITION
Disclosed is a composition that is liquid at ambient temperature and that includes: •at least one diester of 1,4:3,6-dianhydrohexitol(A); •at least one compound (B), chosen from the modified fatty acids and modified fatty acid esters, the compound (B) bearing at least one epoxy and/or acetyl function; the liquid composition including at least 60% by weight of constituents (A) and (B). The composition is useful for plasticising polymers.
LIQUID PLASTICISING COMPOSITION
Disclosed is a composition that is liquid at ambient temperature and that includes: •at least one diester of 1,4:3,6-dianhydrohexitol(A); •at least one compound (B), chosen from the modified fatty acids and modified fatty acid esters, the compound (B) bearing at least one epoxy and/or acetyl function; the liquid composition including at least 60% by weight of constituents (A) and (B). The composition is useful for plasticising polymers.
ETHYLCELLULOSE DISPERSION AND POWDER
Provided is an aqueous composition having pH of 8 or higher and comprising (i) a solid phase comprising dispersed particles that comprise ethylcellulose polymer, (ii) fatty acid, wherein 25 mole % to 100 mole % of said fatty acid is in ionic form, (iii) 0% to 0.1% colloid stabilizer, by weight based on the dry weight of said ethylcellulose polymer, (iv) 0% to 7% plasticizer, by weight based on the dry weight of said ethylcellulose polymer, and (v) one or more cations of an alkali metal or an alkaline earth, wherein the equivalent ratio of said cations to said fatty acid is 0.1:1 to 2:1. Also provided are a method of spray drying an aqueous composition and a powder composition.
ETHYLCELLULOSE DISPERSION AND POWDER
Provided is an aqueous composition having pH of 8 or higher and comprising (i) a solid phase comprising dispersed particles that comprise ethylcellulose polymer, (ii) fatty acid, wherein 25 mole % to 100 mole % of said fatty acid is in ionic form, (iii) 0% to 0.1% colloid stabilizer, by weight based on the dry weight of said ethylcellulose polymer, (iv) 0% to 7% plasticizer, by weight based on the dry weight of said ethylcellulose polymer, and (v) one or more cations of an alkali metal or an alkaline earth, wherein the equivalent ratio of said cations to said fatty acid is 0.1:1 to 2:1. Also provided are a method of spray drying an aqueous composition and a powder composition.
IN-SITU GELATINOUS TRIBLOCK COPOLYMER ELASTOMERS IN LATEX FOAMS
Combinations of gelatinous elastomer and polyurethane foam may be made by introducing a plasticized A-B-A triblock copolymer resin and/or an A-B diblock copolymer resin into a mixture of polyurethane foam forming components including a polyol and an isocyanate. The plasticized copolymer resin is polymerized to form the gelatinous elastomer in-situ while simultaneously polymerizing the polyol and the isocyanate to form polyurethane foam. The polyurethane reaction is exothermmic and can generate sufficient temperature to melt the styrene-portion of the A-B-A triblock copolymer resin thereby extending the crosslinking and in some cases integrating the A-B-A triblock copolymer within the polyurethane polymer matrix. The combination has a marbled appearance. The gel component has higher heat capacity than polyurethane foam and thus has good thermal conductivity and acts as a heat sink. Another advantage of in situ gel-foam is that the gel component provides higher support factors compared to the base foam alone.
Process for manufacturing a thermoformable plasticized composite containing cellulose fiber and a moldable polymer
The present invention concerns a process for manufacturing a thermoformable plasticized composite containing cellulose fiber and polylactide by blending the dry cellulose fiber and a compatibilizer in a compactor into pellets, and subsequently reacting the reactive compatibilizer and the mixture of cellulose fiber and polylactide by compounding. The invention also concerns a composite manufactured using said process, as well as further processed products.
Process for manufacturing a thermoformable plasticized composite containing cellulose fiber and a moldable polymer
The present invention concerns a process for manufacturing a thermoformable plasticized composite containing cellulose fiber and polylactide by blending the dry cellulose fiber and a compatibilizer in a compactor into pellets, and subsequently reacting the reactive compatibilizer and the mixture of cellulose fiber and polylactide by compounding. The invention also concerns a composite manufactured using said process, as well as further processed products.
POLYVINYL ACETAL RESIN FILM, AND LAMINATE COMPRISING SAME
The present invention relates to a polyvinyl acetal resin film, comprising a polyvinyl acetal resin material, wherein the polyvinyl acetal resin film has a thickness of 10 to 350 μm, one surface has a 10-point average roughness Rz value of less than 2 μm and a friction angle of larger than 31° but 40° or smaller, the other surface has a 10-point average roughness Rz value of 2 μm to 7 μm and a friction angle of 20° to 31°, a viscosity of a toluene/ethanol (1:1, mass ratio) solution containing 10%-by-mass of a polyvinyl acetal resin contained in the polyvinyl acetal resin material, which is measured at 20° C. and 30 rpm using a Brookfield-type (B-type) viscometer, is 100 to 1,000 mPa.Math.s, and the amount of a plasticizer in the polyvinyl acetal resin film is 0 to 20% by mass based on a total mass of the polyvinyl acetal resin film.
PRODUCTION AND USE OF PLASTICIZERS BASED ON 2,4-ISOMER OF FURANDICARBOXYLIC ACID DIESTERS
The present disclosure generally relates to a compound of dialkyl ester of 2,4-furandicarboxylic acid, a method of preparing the compound, a polymer composition comprising a polymer and the compound, a method of preparing the polymer composition, a polymer product comprising the polymer composition and a method of using the compound as a plasticizer in the polymer product. The dialkyl ester of 2,4-furandicarboxylic acid of the present disclosure has greater plasticizing efficiency in a polymer composition that that of the standard phthalate and terephthalate-based plasticizers. The polymer product plasticized with the dialkyl ester of 2,4-furandicarboxylic acid may have improved flexibility, durability, processability and safety as compared to the same polymer product plasticized with conventional phthalate and terephthalate-based plasticizers.