Curable resin compositions having extended open times at ambient temperatures and short cure times at elevated temperatures are prepared using a curable resin, a combination of room-temperature-stable liquid peroxides (including at least one perketal), a promoter salt, a thiol-functionalized organic accelerator and a free radical trap. The curable resin compositions are useful in pultrusion, cure-in-place pipe and resin transfer molding applications, among others.

The present invention relates to copolymers, to a method for the preparation of these copolymers, to the use of these copolymers for reducing wear in a lubricant composition, to lubricant compositions comprising these copolymers, and to the use of these lubricant compositions as an automatic transmission fluid, a continuously variable transmission fluid, an engine oil, a gear oil, or a hydraulic oil.

The polymerizable composition for an optical material of the present invention includes a compound (A) represented by General Formula (a) and including two or more allyloxycarbonyl groups, at least one kind of radical polymerization initiator (B) selected from the group consisting of a peroxyketal-based radical polymerization initiator, a peroxymonocarbonate-based radical polymerization initiator, and a peroxyester-based radical polymerization initiator, and a modifier (C) selected from a polyether modified siloxane compound represented by General Formula (c1) or a polyol compound represented by General Formula (c2).

##STR00001##

The present invention provides a method of preparing an aromatic vinyl-unsaturated nitrile-based copolymer in which, when an aromatic vinyl-unsaturated nitrile-based copolymer in which a content of a structural unit derived from unsaturated nitrile monomers in the copolymer is in the range of 22 to 30 wt % is prepared, oligomer content and unreacted monomer content are decreased, resulting in excellent heat resistance, significantly improved surface quality, and particularly, reduced generation of residue on a product surface when used in a closed high temperature environment and reduced occurrence of mold deposits during injection molding, and an aromatic vinyl-unsaturated nitrile-based copolymer prepared using the method.

The present invention provides a method of preparing an aromatic vinyl-unsaturated nitrile-based copolymer in which, when an aromatic vinyl-unsaturated nitrile-based copolymer in which a content of a structural unit derived from unsaturated nitrile monomers in the copolymer is in the range of 22 to 30 wt % is prepared, oligomer content and unreacted monomer content are decreased, resulting in excellent heat resistance, significantly improved surface quality, and particularly, reduced generation of residue on a product surface when used in a closed high temperature environment and reduced occurrence of mold deposits during injection molding, and an aromatic vinyl-unsaturated nitrile-based copolymer prepared using the method.

Curable resin compositions having extended open times at ambient temperatures and short cure times at elevated temperatures are prepared using a curable resin, a combination of room-temperature-stable liquid peroxides (including at least one perketal), a promoter salt, a thiol-functionalized organicd accelerator and a free radical trap. The curable resin compositions are useful in pultrusion, cure-in-place pipe and resin transfer molding applications, among others.

The present disclosure relates to a thermoplastic graft copolymer resin, a method of preparing the same, and a thermoplastic resin composition including the same. More particularly, the present invention relates to a thermoplastic graft copolymer resin including a seed, an alkyl acrylate rubber core enclosing the seed, and a shell enclosing the rubber core, a method of preparing the same, and a thermoplastic resin composition including the same, wherein the thermoplastic graft copolymer resin has a gel content of 93% by weight or more and a swelling index of 6 to 14. In accordance with the present disclosure, a thermoplastic graft copolymer resin exhibiting excellent chemical resistance, heat resistance, and impact resistance, a method of preparing the same, and a thermoplastic resin composition including the same are provided.

The invention provides new water soluble polymers for the use in industrial processes, where large quantities of water is handled, such as sludge dewatering and papermaking. These new polymers are water soluble cross-linked block copolymers, wherein the block copolymers are cross-linked together using a cross-linking agent. Each of the block copolymers contain two different blocks, and these blocks are formed from different monomers. The blocks are linked together with a molecular spacer derived from a bifunctional initiator used during the polymerization of the blocks. The monomers used in polymerizing the blocks are different with each other and they are selected from a group consisting of N-vinylformamide, acrylic acid, acrylamide and water-soluble derivatives thereof.

The invention provides new water soluble polymers for the use in industrial processes, where large quantities of water is handled, such as sludge dewatering and papermaking. These new polymers are water soluble cross-linked block copolymers, wherein the block copolymers are cross-linked together using a cross-linking agent. Each of the block copolymers contain two different blocks, and these blocks are formed from different monomers. The blocks are linked together with a molecular spacer derived from a bifunctional initiator used during the polymerization of the blocks. The monomers used in polymerizing the blocks are different with each other and they are selected from a group consisting of N-vinylformamide, acrylic acid, acrylamide and water-soluble derivatives thereof.

The present invention relates to a polymeric composition comprising a polymer comprising monomers of methyl methacrylate and methacrylic acid. In particular the present invention relates to a process for making a polymeric composition suitable for moulded objects, said polymeric composition is comprising monomers of methyl methacrylate and methacrylic acid. The present invention concerns also process for making a moulded object comprising a polymer comprising monomers of methyl methacrylate and methacrylic acid. The present invention concerns also moulded object comprising a polymer comprising monomers of methyl methacrylate and methacrylic acid.