A crosslinking material, the crosslinking material comprising the reaction product of a reaction mixture comprising: (ii) ≥70% by weight of a cyclic unsaturated acid anhydride and/or diacid derivative thereof by total solid weight of the monomers from which the crosslinking material is formed; (ii) optionally, an ethylenically unsaturated monomer; and (iii) optionally, an alcohol, amine, thiol and/or water, wherein at least a portion of the cyclic unsaturated acid anhydride and/or diacid derivative thereof is reacted with the alcohol, amine, thiol and/or water, when present; and wherein the crosslinking material has an acid number of at least 100 mg KOH/g.

A crosslinking material, the crosslinking material comprising the reaction product of a reaction mixture comprising: (ii) ≥70% by weight of a cyclic unsaturated acid anhydride and/or diacid derivative thereof by total solid weight of the monomers from which the crosslinking material is formed; (ii) optionally, an ethylenically unsaturated monomer; and (iii) optionally, an alcohol, amine, thiol and/or water, wherein at least a portion of the cyclic unsaturated acid anhydride and/or diacid derivative thereof is reacted with the alcohol, amine, thiol and/or water, when present; and wherein the crosslinking material has an acid number of at least 100 mg KOH/g.

A composition is described comprising a styrene-isobutylene block copolymer; and at least one ethylenically unsaturated monomer. After curing the composition comprises polymerized units of the ethylenically unsaturated monomer. In some embodiments the ethylenically unsaturated groups are selected from (meth)acryl or vinyl ether. The composition is suitable for use as a (e.g. pressure sensitive) adhesive. Articles, methods of making an article, and methods of bonding are also described.

A composition is described comprising a styrene-isobutylene block copolymer; and at least one ethylenically unsaturated monomer. After curing the composition comprises polymerized units of the ethylenically unsaturated monomer. In some embodiments the ethylenically unsaturated groups are selected from (meth)acryl or vinyl ether. The composition is suitable for use as a (e.g. pressure sensitive) adhesive. Articles, methods of making an article, and methods of bonding are also described.

An embodiment of the present invention relates to a paste which includes a perfluoropolyether (A) having two or more ethylenically unsaturated bonds in the molecule, a polysiloxane (B) having two or more ethylenically unsaturated bonds in the molecule, and a radical initiator (C).

An embodiment of the present invention relates to a paste which includes a perfluoropolyether (A) having two or more ethylenically unsaturated bonds in the molecule, a polysiloxane (B) having two or more ethylenically unsaturated bonds in the molecule, and a radical initiator (C).

Provided is a process of making a polyphenylene oxide prepolymer, comprising a step of reacting a reactive cycloolefin and a vinyl-containing polyphenylene oxide in the presence of a ruthenium catalyst. The reactive cycloolefin may be selected from dicyclopentadiene monomer, dicyclopentadiene oligomer, dicyclopentadiene polymer, norbornene monomer, norbornene oligomer, norbornene polymer, and a combination thereof; the vinyl-containing polyphenylene oxide may be selected from divinylbenzyl polyphenylene oxide resin, vinylbenzyl-modified polyphenylene oxide resin, methacrylic polyphenylene oxide resin, and a combination thereof; the ruthenium catalyst may be a Grubbs catalyst. Also provided are a polyphenylene oxide prepolymer made by the process, a resin composition containing the polyphenylene oxide prepolymer, and a product made from the resin composition.

Provided is a process of making a polyphenylene oxide prepolymer, comprising a step of reacting a reactive cycloolefin and a vinyl-containing polyphenylene oxide in the presence of a ruthenium catalyst. The reactive cycloolefin may be selected from dicyclopentadiene monomer, dicyclopentadiene oligomer, dicyclopentadiene polymer, norbornene monomer, norbornene oligomer, norbornene polymer, and a combination thereof; the vinyl-containing polyphenylene oxide may be selected from divinylbenzyl polyphenylene oxide resin, vinylbenzyl-modified polyphenylene oxide resin, methacrylic polyphenylene oxide resin, and a combination thereof; the ruthenium catalyst may be a Grubbs catalyst. Also provided are a polyphenylene oxide prepolymer made by the process, a resin composition containing the polyphenylene oxide prepolymer, and a product made from the resin composition.

The present invention aims to provide a resin composition capable of providing a molded article that has high slidability and high impact resistance, as well as excellent tensile strength. The present invention relates to a resin composition containing an aromatic polyether ketone resin (I) and a fluororesin (II). The composition preferably has a sodium content of 120 ppm or less relative to the composition or a calcium content of 15 ppm or less relative to the composition.

The present invention aims to provide a resin composition capable of providing a molded article that has high slidability and high impact resistance, as well as excellent tensile strength. The present invention relates to a resin composition containing an aromatic polyether ketone resin (I) and a fluororesin (II). The composition preferably has a sodium content of 120 ppm or less relative to the composition or a calcium content of 15 ppm or less relative to the composition.