Brush

Abstract

Abstract PURPOSE:To improve the flexing fatigue, water, and chemical resistance of a brush by containing polyester elastomer in a specified amount of high viscous polybutylen terephthalate. CONSTITUTION:Monofilaments of 0.05-3.0mm in diameter for brushes made of the mixture of 50-90 in wt% of polybutylene terephthalate of which melt viscosity is 4,000 poises or more and 50-10 in wt% of polyester elastomer are formed. Constitution of a brush using these monofilaments as component parts improves the bent degradation, water, and chemical resistibilities of the brush. In this case, the polyester elastomer is a block copolymer composed of polyester hard segments and about 200-6,000 in number average monocular weight of polyether soft segments, and the ratio of the hard segments and soft segments is 15-90wt%, 85-10wt%.

Inventors

• 👤 Eiryo Yoshimura
• 👤 吉村　英良
• 👤 Keisuke Igawa
• 👤 井川　恵右

Bibliographic Details