Showa Highpolymer Co., Ltd.

Taio Paper Manufacturing Co., Ltd.

Yukio Doi

Wei-Zhong Zhang

Masayoshi Kinugasa

Mitsuhiro Imaizumi

Ryoji Ishioka

Yasunori Shimada

Yoshiro Okino

Haruo Hattori

Toshiaki Kawanabe

Koichi Inoshita

Mamoru Awano

Koichi Ishitani

Michio Kawamura

Shozo Yoshida

The invention provides a method for producing an aqueous biodegradable polyester dispersion and includes the step of mixing and kneading a molten biodegradable polyester, an aqueous emulsifier solution having a surface tension in terms of 1.0% by weight aqueous solution at 20&deg; C. of 63 mN/m or less, and other additives according to necessity to yield an aqueous dispersion having a solid concentration of 40% by weight or more and a viscosity at 20&deg; C. of 1000 mPa&middot;s or more. The invention can provide a method for producing an aqueous biodegradable polyester dispersion that has a high solid concentration and a high viscosity and is very advantageous in practical use.

Method for producing aqueous biodegradable polyester dispersion

Method of manufacturing water-based silicone-type graft copolymer

A silicone copolymer emulsion comprising:

Silicone copolymer emulsion

An improved in-situ polymerization method is provided for easily producing a good slurry of strong, dense, water-resistant and anti-hygroscopic microcapsules made of an amino resin of either of melamine-formaldehyde series or the ureaformaldehyde series, in a high concentration of microcapsules, and a low viscosity.

Method of producing a slurry of microcapsules

Growing community of inventors

Ibo, Japan

Yukio Doi