Kao Corporation

Tokyo Women's Medical College

Takayuki Amiya

Seiichi Miyanaga

Hiromi Nambu

Takahide Minami

Kazunori Kataoka

Noriko Yamada

Yasuhisa Sakurai

Yoshihiro Hasebe

Yoshimitsu Ina

Yoko Hanada

Akihiro Kondo

Yutaka Yasuda

Tadashi Igarashi

Akira Mamada

Yoshihiko Watanabe

Akira Umada

A super absorbent polymer composition comprising a chelating compound (A) which has a site capable of forming a chelate with a copper ion and whose copper salt has a solubility in physiological saline at 25&deg; C. of 0.01% by weight or less and a super absorbent polymer (B), wherein the chelating compound (A) is present in an amount of from 0.0001 to 30 parts by weight per 100 parts by weight of said super absorbent polymer (B).

Super absorbent polymer composition

Process for producing improved super absorbent polymer

A process for producing polymer particles with an irregular shape by polymerizing a water-soluble polymerizable monomer in a system comprising a hydrophobic organic solvent inert to the polymerization and an aqueous solution of the water-soluble polymerizable monomer, characterized in that the system further contains an anionic surfactant.

Process for producing polymer particles with irregular shape

The process of the present invention for producing polymer particles with an irregular shape by polymerizing a water-soluble polymerizable monomer in a system comprising a hydrophobic organic solvent inert to the polymerization and an aqueous solution of the water-soluble polymerizable monomer is characterized in that the system a glycoside compound having such a structure that the hydrogen atom of the hemiacetal bond in the compound has been substituted for a hydrophobic group, or a gluconamide compound as a dispersant.

Process for producing polymer particles with irregular shape by

A propylene (co) polymer terminated with a reactive group and a process for the preparation of the same. A graft copolymer having a specific side chain and a process for the preparation of the same. The propylene (co) polymer is usable as a radial- or ion-polymerizable propylene macromonomer or as an intermediate for the preparation of a block polymer. Examples of the application thereof include compatibizing agent for polymers, light- or laser-curable plastic, viscosity index and surface modifier. The graft copolymer is useful as a surface modifier or compatibilizing agent for polypropylene or a dispersant for fillers.

Propylene (co)polymer and process for the preparation of the same

Disclosed is a bed material whereby cultured or grown cells are collected or detached from the material without a proteolysis enzyme or chemical material. The bed material comprises a support and a coating thereon, wherein the coating is formed from a polymer or copolymer which has a critical solution temperature to water within the range of 0.degree. C. to 80.degree. C.

Bed material for cell culture

Growing community of inventors

Wakayama, Japan

Takayuki Amiya