Location History:
- Yamaguchi, JA (1978)
- Iwakuni, JP (1978 - 1984)
- Waki-cho, JP (1997)
- Kuga-gun, JP (1997)
Company Filing History:
Years Active: 1978-1997
Title: Hiroshi Wakumoto: Innovator in Polypropylene Compositions
Introduction
Hiroshi Wakumoto is a prominent inventor based in Waki-cho, Japan. He has made significant contributions to the field of polymer science, particularly in the development of polypropylene compositions. With a total of 5 patents to his name, Wakumoto continues to push the boundaries of innovation in materials science.
Latest Patents
Wakumoto's latest patents focus on advanced polypropylene compositions. One of his notable inventions includes a polypropylene composition that comprises 95-55 parts by weight of polypropylene (A) and 5-45 parts by weight of an ethylene/1-butene random copolymer (B-1). This copolymer contains constituent units derived from 1-butene in an amount of 15 to 25% by mol. Another significant patent involves a polypropylene composition that includes 95-55 parts by weight of polypropylene (A) and 5-45 parts by weight of an ethylene/1-octene random copolymer (B-2), which contains constituent units derived from 1-octene in an amount of 8 to 20% by mol. Each of these random copolymers has specific properties, such as an intrinsic viscosity of 1.5 to 3.5 dl/g, a glass transition temperature of not higher than -50°C, and a crystallinity of less than 20%. The melting points of the copolymers are also noteworthy, with B-1 having a value of not higher than 60°C and B-2 not higher than 80°C.
Career Highlights
Hiroshi Wakumoto is currently employed at Mitsui Petrochemical Industries, Ltd., where he applies his expertise in polymer technology. His work has been instrumental in advancing the company's research and development efforts in the field of petrochemicals.
Collaborations
Wakumoto collaborates with several talented individuals in his field, including Masayoshi Yamaguchi and Akio Ishimoto. These collaborations enhance the innovative potential of their projects and contribute to the advancement of polymer science.
Conclusion
Hiroshi Wakumoto is a distinguished inventor whose work in polypropylene compositions has made a significant impact in the field of materials science. His innovative patents and collaborations continue to drive
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