Shiyuji Kashiwase

Title: Shiyuji Kashiwase and Thermoplastic Resin Innovation.

Introduction

Shiyuji Kashiwase is an inventor associated with Kawasaki, Japan, and Nippon Petrochemicals Company, Limited. His listed patent work concerns processes for preparing thermoplastic resin compositions. He is credited with 2 patents.

Latest Patents

Kashiwase’s listed patents describe a process for preparing a thermoplastic resin composition by dynamically heat-treating a thermoplastic resin with an elastomer in the presence of a crosslinking agent. The thermoplastic resin substantially contains no olefinic unsaturated carbon-carbon bonds, while the elastomer does.

The process identifies several possible elastomers: styrene-butadiene-styrene block copolymer (SBS), styrene-isoprene-styrene block copolymer (SIS), 1,2-polybutadiene rubber, and ethylene-propylene-diene random copolymer (EPDM). It specifies a dihydroaromatic compound or a polymer of such a compound as the crosslinking agent. The supplied descriptions repeat the same invention, with a minor spelling variation in the name of the SIS copolymer.

Career Highlights

Kashiwase’s documented patent contributions focus on polymer processing and the preparation of thermoplastic resin compositions. The described approach combines dynamic heat treatment with selected elastomers and crosslinking agents.

Collaborations

Kashiwase is associated with Nippon Petrochemicals Company, Limited. His listed coworkers include Masaaki Miyazaki and Toshitsune Yoshikawa.

Conclusion

Shiyuji Kashiwase’s patent record highlights work on preparing thermoplastic resin compositions through dynamic heat treatment and crosslinking, reflecting a focused contribution to polymer technology.