Kuraray Co., Ltd.

Takashi Ohnaga

Toshiaki Sato

Kaoru Ikeda

Kenichi Hamada

Shiro Nagata

Katsunori Takamoto

Yukihiro Fujieda

Katsuei Takahashi

Mitsuo Ohtani

Koji Arakawa

Teruo Hasegawa

Polymer blend

Polymer blends comprising a copolymer (A) which comprises 50 to 98% by weight of units from methyl methacrylate, 2 to 50% by weight of units from an acrylate and/or methacrylate having a halogen-substituted aromatic ring, and 0 to 25% by weight of units from other copolymerizable .alpha.,.beta.-substituted monomer, and an aromatic polycarbonate (B).

Polymer blends

Provided are polyvinyl ester macromonomers (A) having excellent polymerizability and highly controlled composition, structure and distribution of polymerization degree. Also provided are polyvinyl alcohol macromonomers (B) obtained by solvolysis of the above polyvinyl ester macromonomers (A) and having excellent polymerizability and highly controlled composition, structure and distribution of polymerization degree. Further provided are polymers (C) obtained by polymerization of the above polyvinyl ester macromonomers (A) and containing units from polyvinyl ester macromonomers having highly controlled composition, structure and distribution of polymerization degree. These polymers (C) are useful as compatibility improving agents, surface improving agents and like agents. Still further provided are polymers (D) obtained by solvolysis of the above polymers (C) or by polymerization or copolymerization of the above polyvinyl alcohol macromonomers (B) and containing units from polyvinyl alcohol macromonomers having highly controlled composition, structure and distribution of polymerization degree. These polymers (D) are useful for decreasing viscosity of aqueous solutions of polymers at high concentrations, improving surface, preventing static charge and the like.

Polyvinyl ester macromonomer and its uses

Growing community of inventors

Kurashiki, Japan

Takashi Ohnaga