Kazuaki Hayashida

Title: Kazuaki Hayashida: Innovator in Acrylic Films and Membrane Technology

Introduction

Kazuaki Hayashida is a notable inventor based in Otake, Japan. He has made significant contributions to the field of materials science, particularly in the development of acrylic films and hydrophobic porous membranes. With a total of 3 patents to his name, Hayashida's work has garnered attention for its innovative approaches and practical applications.

Latest Patents

Hayashida's latest patents include advancements in acrylic films and acrylic laminates. One of his notable inventions is an acrylic film that boasts excellent flexibility, which is easy to process. This film comprises 70 to 95 parts by weight of an acrylic rubber-containing polymer (A) and up to 30 parts by weight of an acrylic-based thermoplastic polymer (B). The total amount of (A) and (B) equals 100 parts by weight, with a gel content of 50 to 70% by weight and an elongation at break in one direction of 180% or more. The acrylic rubber-containing polymer (A) features an elastic copolymer with a monomer unit that has a glass transition temperature exceeding 65°C. Meanwhile, the acrylic-based thermoplastic polymer (B) has a glass transition temperature of 65°C or less and a weight average molecular weight ranging from 100,000 to 300,000.

Another significant patent involves the creation of hydrophobic porous membranes and their manufacturing process. This invention includes a hydrophobic porous membrane that incorporates a polymer with fluorinated alkyl side chains, which are held in physical contact with the surface of a polyolefin porous membrane. The fluorinated alkyl side chains of the polymer are crystallized, enhancing the membrane's properties. Additionally, the patent describes a hydrophobic porous membrane made from a fluorinated crosslinked polymer derived from a fluorinated monomer with a fluorinated alkyl side chain and a crosslinking monomer. These membranes utilize polyolefin porous membranes, which offer higher mechanical strength and lower costs compared to traditional fluorinated polymer porous membranes, while still providing superior hydrophobicity.

Career Highlights

Kazuaki Hayashida is currently employed at Mitsubishi Rayon Company, Limited, where he continues to innovate and develop new materials. His work has significantly impacted the industry, particularly in applications requiring advanced materials with specific properties.