New coating materials prepared by radiation-induced polymerization. I. Mar-resistant coating composition and properties

✍ Scribed by H. Okubo; M. Kato; M. Yoshida; A. Ito; I. Kaetsu

• Publisher: John Wiley and Sons
• Year: 1978
• Tongue: English
• Weight: 530 KB
• Volume: 22
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/app.1978.070220216

✦ Synopsis

Abstract

A mar‐resistant coating system was obtained by screening combinations of silicone and vinyl compounds. It was found that binary systems, such as the γ‐glycidoxypropyltrimethoxysilane–glycidyl methacrylate system, were excellent not only in mar resistance but also in adhesion to base resin polymers. Haze values of these coatings, after the sand‐falling test, reached less than 10%. The coating process consisted of three steps: the preparation of prepolymer, the coating to plastic surface, and the curing of the coating by heating. It was found that the prepolymerization step could be performed by irradiation very conveniently; the control of viscosity for coating application and thickness control could be possible without any gel formation. These coatings were also good in weather resistance due perhaps to the good adhesion to base resin and could be applicable to plastic spectacles, glazing materials, and a variety of other products.