A preparation method of a separator according to the present disclosure includes preparing an aqueous slurry including inorganic particles, a binder polymer, and an aqueous medium, and coating the aqueous slurry on at least one surface of a porous polymer substrate to form an organic-inorganic composite porous coating layer, wherein capillary number of the aqueous slurry has a range between 0.3 and 65.

A thermosetting resin composition containing: (A) an addition reaction product of a maleimide compound having at least two N-substituted maleimide groups in one molecule (a1) and an amine compound having at least two primary amino groups in one molecule (a2), (B) a thermoplastic elastomer, and (C) a copolymer resin having a structural unit derived from an aromatic vinyl compound and a structural unit derived from a carboxylic acid anhydride.

Copper clad laminates and a resin composition and a pre-preg and a laminate using the composition. The resin composition contains: (A) a prepolymer of vinyl thermosetting polyphenylene ether and a bifunctional maleimide or a multifunctional maleimide; and, (B) a polyolefin resin. Employing the prepolymer of vinyl thermosetting polyphenylene ether and the bifunctional maleimide or the multifunctional maleimide, solves the problem of incompatibility of the bifunctional maleimide or the multifunctional maleimide with the vinyl thermosetting polyphenylene ether and the polyolefin resin. An aqueous glue solution so mixed is uniform and consistent, the prepreg has a uniform expression, and a substrate resin area is free of a phase-separation problem.

A resin composition includes a first maleimide resin and a second maleimide resin which is different from the first maleimide resin. The resin composition may be used to make various articles, such as a prepreg, a resin film, a resin-coated copper, a laminate or a printed circuit board, and achieve improvements in at least one, more or all properties including varnish solubility, varnish shelf life, prepreg appearance, radial flow via fill factor, laminate appearance, copper foil peeling strength, and glass transition temperature; in addition, the manufacturing of various articles is free of nitrogen oxide pollutant emission.

A resin composition and uses of the same are provided. The resin composition includes the following components:

(A) a cross-linking agent of the following formula (I):

##STR00001##

(B) a polyphenylene ether resin, wherein the terminal ends of the polyphenylene ether resin are independently modified by a substituent with a carbon-carbon double bond; and
(C) a catalyst,
wherein, R.sup.1 in formula (I) is a C.sub.6 to C.sub.16 alkyl or a C.sub.6 to C.sub.16 alkenyl, and the weight ratio of the polyphenylene ether resin (B) to the cross-linking agent (A) ranges from 0.5 to 5.

The present invention provides a coating composition comprising a binder, a rheology modifier that acts to increase the viscosity of the coating composition and a particulate component able to remove a volatile organic compound from an environment in contact with the coating composition.

The present invention relates to a polypropylene resin composition containing a polypropylene resin, an elastomer having a polar functional group, and a filler. The polypropylene resin composition of the present invention can be suitably used in manufactured articles of audio equipment, electric appliances, transportation vehicles, construction buildings, industrial equipment, and the like.

There are provided a tire that combines a low elastic modulus at low temperatures with a high hysteresis loss at low temperatures and has excellent on-ice brake performance, and a vulcanized rubber and a rubber composition from which the tire is obtained. A rubber composition comprising a rubber component comprising a natural rubber, a polybutadiene rubber, and a styrene-butadiene copolymer rubber, and 50 to 90 parts by mass of a filler comprising silica relative to 100 parts by mass of the rubber component, wherein the mass n of the natural rubber in the rubber component is 40% by mass or more, the mass n, the mass b of the polybutadiene rubber, and the mass s of the styrene-butadiene copolymer rubber satisfy the relation: sbn, provided that when n=b, s<b, and 50% by mass or more of the silica is comprised in a phase comprising the polybutadiene rubber and the styrene-butadiene copolymer rubber.

A process for epoxidation of an unsaturated polymer involves mixing an unsaturated polymer and a peroxy acid in an absence of solvent to produce an epoxidized polymer. The process may require no solvent, require no catalyst, require no or little applied external heat input, require no applied cooling, require less epoxidation agent, be faster and/or result in more efficient conversion of the unsaturated polymer.

A polyphenylene ether resin composition includes a modified polyphenylene ether copolymer, a high-molecular-weight compound, and a crosslinking agent for the modified polyphenylene ether copolymer. The modified polyphenylene ether copolymer includes a substituent having a carbon-carbon unsaturated double bond at a molecular chain end of the modified polyphenylene ether copolymer. The high-molecular-weight compound has a glass transition temperature (Tg) measured by differential scanning calorimetry of 20 C. or lower and has a number-average molecular weight Mn ranging from 1000 to 10000, inclusive. The crosslinking agent includes at least two carbon-carbon unsaturated double bonds per molecule, and includes at least one of dicyclopentadiene acrylate and dicyclopentadiene methacrylate. In a cured state of the polyphenylene ether resin composition, the modified polyphenylene ether copolymer is phase separated from the high-molecular-weight compound.