摘要:
The invention relates to an uncured, polymerizable composition comprising (A) 1 - 25 % b.w. of the total composition of a rubber, (B) 25 - 75 % b.w. of the total composition of a monomer or monomer blend comprising acrylic or methacrylic acid or a derivative thereof (C) 1 - 50 % b.w. of the total composition of a meth(acrylated) polyurethane and (D) at least one type of core shell particle. Upon cure these compositions exhibit better facture toughness, especially at low temperatures.
摘要:
An encapsulation composition, an encapsulation film including the same, an encapsulation product for organic electronic devices, and a method of manufacturing an organic electronic device are provided. The encapsulation composition can be useful in effectively preventing moisture or oxygen from flowing into the organic electronic device from external environments while realizing transparency when the organic electronic device is encapsulated by the encapsulation composition. Also, the encapsulation film formed of the encapsulation composition can be useful in ensuring mechanical properties such as handling properties and processability, and the organic electronic device whose encapsulation structure is formed by means of the encapsulation film may have improved lifespan and durability, thereby providing an encapsulation product for organic electronic devices showing high reliability.
摘要:
A curable composition comprising a a) styrene-butadiene vinyl resin containing from 30 weight percent to 85 weight percent of 1, 2-vinyl groups and wherein styrene is present in an amount in the range of from 10 weight percent to 50 weight percent; b) a vinyl poly(phenylene ether) having a number average molecular weight in the range of from 300 to 10000; c) an aniline modified styrene-maleic anhydride copolymer; d) a multifunctional epoxy resin; and e) a flame retardant wherein, upon curing under curing conditions, the curable composition forms at least one interpenetrating network structure, is disclosed. Methods for preparing the curable composition are also disclosed, as are prepregs and laminates made therefrom.
摘要:
Articles are described such as optical films and optical film stacks 2000. The articles include a substrate 2070 and a primer layer 2075 disposed on the substrate wherein the primer layer comprises a polyacrylate and a nitrogen-containing polymer. The article further includes an adhesive layer 2060 disposed onto the primer layer wherein the adhesive layer comprises a polyacrylate component. In some embodiments, the adhesive is further bonded to a second substrate 2010 or a release liner.
摘要:
The invention relates to an aqueous fluoropolymer coating composition for direct application to glass without the need for pre-treatment of the glass surface. The coating composition can also be used with other non-porous and porous substrates. The fluoropolymer coating contains a hydroxyl-functional fluoropolymer, and polyisocyanates. Preferably the coating composition also contains a water-dispersible hydroxyl functional polyurethane. The coating composition may exist as a 1-pack or a multi-pack coating system. The coating has excellent wet adhesion to glass, good weathering, chalking resistance, chemical resistance, and dirt pickup resistance.
摘要:
The invention relates to a multi-component resin system comprising (A) a hydroxyl functional unsaturated polyester resin comprising fumaric acid building blocks as unsaturated dicarboxylic acid building blocks and having a hydroxyl value of from 40 up to and including 150, (B) a hydroxyl functional saturated polyester resin comprising cyclohexane dicarboxylic acid building blocks as saturated dicarboxylic acid building blocks and having a hydroxyl value of from 40 up to and including 150, (C) a polyisocyanate that has on average at least 1.75 isocyanate groups, (D) an ethylenically unsaturated compound copolymerizable with (A) and optionally with (B), and (E) a radical initiator, whereby the molar ratio of
摘要:
Provided is a thermosetting resin composition which can be used for the production of printed circuit boards, having good dielectric properties in high frequency bands so that transmission loss can be significantly lowered, having excellent heat resistance after moisture absorption and thermal expansion properties, and satisfying peeling strength between the resin composition and metal foil. The present invention relates to a thermosetting resin composition comprising a polyphenylene ether-modified butadiene prepolymer comprising a polyphenylene ether (A) and a butadiene polymer (B'), characterized in that the component (A) has a number average molecular weight in the range of 7000 to 30000; the component (B') comprises 40% or more of a unit derived from a 1,2-butadiene unit having a 1,2-vinyl group in a side chain; the component (B') is not a modified polybutadiene in which the 1,2-vinyl group in the side chain, or one or both of the terminals in the molecule of the component (B') is/are chemically modified by converting into epoxy, glycol, phenol, maleic acid, (meth)acryl, or urethane; and the component (B') has a cross-linked structure; and a resin varnish, a prepreg and a metal clad laminated board using the same.
摘要:
A composite including interpenetrating networks of an organic polymer, such as from an acrylate or olefin, having urethane groups; and an inorganic polymer, the composite having a low or no-shrinkage characteristic, and a method for making the composite, as defined herein.