Abstract:
A thermoplastic resin composition of the present invention has high impact resistance, not lowering the weather resistance thereof, even though the amount of an impact resistance improver added thereto is small. The thermoplastic resin composition contains 100 parts by weight of (A) a thermoplastic resin and from 0.5 to 20 parts by weight of (B) a graft copolymer, wherein the graft copolymer (B) contains from 70% to 99% by weight of a crosslinked core (b2) prepared through polymerization of a monomer for the core (b2), containing 70% by weight or more of an acrylate, in the presence of from 0.5% to 20% by weight of a non-crosslinked seed (b1) having a weight-average molecular weight of 40,000 or less, and from 0.5% to 10% by weight of a shell (b3) prepared through polymerization of a monomer for the shell (b3) containing 50% by weight or more of a methacrylate, and the thermoplastic composition further contains from 0.01 to 3.0 parts by weight of (C) a water-soluble polymer compound having the property of forming a physical gel, relative to 100 parts by weight of the graft copolymer (B).
Abstract:
An object of the invention is to provide cellulose fibers which can give a cellulose composite that renders high transparency, a reduction in linear expansion coefficient, and a high modulus of elasticity possible. The invention relates to: a process for producing modified cellulose fibers which includes a modification reaction step of reacting cellulose with an aromatic compound in an organic acid to thereby modify the cellulose with an aromatic-ring-containing substituent; cellulose fibers modified with aromatic-ring-containing substituent; a dispersion of the cellulose fibers; and a cellulose fiber composite obtained from the same.
Abstract:
The present invention relates to a method for isolating proteins from a solution containing the proteins. The invention also relates to a method for the chromatographic separation of proteins. The present invention also relates to crosslinked hydroxylic polymer particles functionalized with temperature-responsive copolymer, and to methods of preparing such particles.
Abstract:
The present invention relates to a retardation film having biaxial characteristics or an achromatic property, which is obtained by uniaxially stretching of a film composed of cellulose derivatives in which a hydroxyl group of cellulose is substituted by an acyl group having 5 to 20 carbon atoms, preferably 7 to 20 carbon atoms, more preferably 8 to 20 carbon atoms or cross-linked compounds of cellulose derivatives, said retardation film is a superior retardation film which has negative birefringence and excellent optical characteristics and also can be easy to obtain by uniaxially stretching, and in addition, the heat resistance, tearing strength and the like which are weaknesses of cellulose ester are improved.
Abstract:
Grafting polymer chains onto filler particles is an established methodology for creating superior polymer composite materials. Stereocomplexation is a non-bonded interaction between polymers that leads to a crystalline form having a higher melting temperature than the non-stereocomplexed form; stereocomplexed polymers often have superior properties compared to their non-stereocomplexed constituents. The present application discloses combining grafted filler particles with matrix materials in which the grafted polymer layer forms a stereocomplex with the polymer matrix. The resulting composite materials have properties which exceed both filled polymer systems and stereocomplexed polymers.
Abstract:
Accordingly, the present invention relates to a pressure sensitive adhesive composition consisting of a continuous phase comprising cross-linked polyalkyleneoxide polymer and a discontinuous phase comprising water absorbent hydrophilic agents wherein a) the water absorbent hydrophilic agent(s) is present in an amount between 1 and 40% w/w of the total adhesive composition; and b) the continuous phase comprises the reaction product (X) of: (i) a polyalkyleneoxide polymer having one or more unsaturated end groups, and where more than 90% w/w of the polyalkylene oxide polymer consist of polymerised alkyleneoxide moities having three or more carbon atoms, and (ii) an organosiloxane comprising one or more Si—H groups, carried out in the presence of an addition reaction catalyst. The present invention also relates to medical devices comprising such pressure sensitive adhesives.
Abstract:
Disclosed is an optical film characterized by containing 0.001-10 parts by mass of an ultraviolet absorbent represented by general formula (1) per 100 parts by mass of a cellulose ester. (In the formula, n represents an integer of 1-4; when n is 1, R represents an alkyl group having 3-30 carbon atoms, and when n is 2-4, R represents a residue obtained by removing a carboxylic acid group from an aliphatic or aromatic polybasic acid having 1-34 carbon atoms; and R1, R2, R3 and R4 independently represent a hydrogen atom or an alkyl group having 1-4 carbon atoms.)
Abstract:
The invention relates to a composite system comprising at least one biodegradable blend, containing at least one biodegradable block copolyester urethane (PEU) and also at least one polyhydroxyalkanoate (PHA), possibly a filler comprising a polysaccharide and/or derivatives thereof and also possibly further biocompatible additives. Composite systems of this type are used for producing moulded articles, moulded parts or extrudates. Furthermore, the invention relates to possibilities for using the composite system.
Abstract:
Methods for increasing one or more barrier properties of a sheet of paper or paperboard, which method comprises (a) preparing a dispersion having a cationic zeta potential by combining (1) a mixture containing one or more anionic pigments with (2) one or more polyamine-epihalohydrin cationic wet strength resins; (b) coating at least one side of the sheet of paper or paperboard with the dispersion at a coating weight of from about 0.1 g/m2 to about 20 g/m2; (c) drying the coated sheet of paper or paperboard; (d) coating the dried sheet of paper or paperboard with a functional barrier top coating formulated to provide resistance to one or more of the following (1) liquid water, (2) water vapor, (3) oil, (4) grease, (5) gas permeability, (6) skid, or (7) static. Also claimed are dispersions used in the methods, which dispersions have a cationic zeta potential for use as a preliminary coating on a sheet of paper or paperboard in advance to a functional barrier top coating, which dispersions comprise: (a) a mixture containing: (i) one or more anionic pigments in an amount of at least about 20% dry weight of the anionic pigment-containing mixture, (ii) one or more neutral or cationic water soluble binders in an amount up to about 80% dry weight of the anionic pigment-containing mixture, and (b) one or more polyamine-epihalohydrin cationic wet strength resins in a weight ratio of resin:anionic pigment from about 0.03:1 to about 0.8:1.
Abstract translation:提高一张纸或纸板的一种或多种阻隔性能的方法,该方法包括(a)通过将(1)含有一种或多种阴离子颜料的混合物与(2)一种或多种阴离子颜料混合来制备具有阳离子ζ电位的分散体 多胺 - 表卤代醇阳离子湿强度树脂; (b)以约0.1g / m 2至约20g / m 2的涂层重量涂覆该纸或纸板的至少一面与分散体; (c)干燥涂布的纸或纸板; (d)用干燥的纸或纸板涂覆功能性阻隔面涂层,其被配制成对以下(1)液态水中的一种或多种,(2)水蒸气,(3)油,(4)润滑脂, (5)透气性,(6)防滑,或(7)静电。 还要求的是在方法中使用的分散体,其分散体具有阳离子ζ电位,用作预先在功能性屏障顶涂层上的纸或纸板上的预涂层,该分散体包含:(a)含有:( i)一种或多种阴离子颜料的含量为至少约20%的含阴离子颜料的混合物的干重,(ii)一种或多种中性或阳离子水溶性粘合剂,其量至多约80% 含有阴离子颜料的混合物,和(b)一种或多种多胺 - 表卤代醇阳离子湿强度树脂,其树脂:阴离子颜料的重量比为约0.03:1至约0.8:1。
Abstract:
The present invention provides a process for making a filled fluoropolymer bearing comprising providing an aqueous fluoropolymer dispersion comprising fluoropolymer particles and anionic polyelectrolyte dispersing agent in an amount sufficient for stabilization. The dispersion contains less than about 300 ppm fluorosurfactant based on the weight of the dispersion. The dispersion is coagulated to make a mush and a bearing filler is added to the dispersion prior to or after making the mush. The mush containing bearing filler is applied onto a bearing substrate to produce a coated substrate which is sintered and formed into a bearing.