Patent ID: 6020106
Filing Date: 2000-02-01
Classification: B41M,C08L,Y10S,Y10T

Abstract:
A process for producing a molded article having a high-contrast laser inscription thereon, which process comprises: providing a polymer mixture consisting essentially of:A) from 40 to 99% by weight of a polymer of an alkyl ester of (meth)acrylic acid,B) from 1 to 50% by weight of a copolymer of styrene and acrylonitrile having an acrylonitrile content of from 18 to 23% by weight,C) from 0 to 50% by weight of rubber particles having a particle size of from 0.05 to 2 .mu.m and a glass transition temperature of less than 0.degree. C.,D) from 0 to 20% by weight of additives and processing auxiliaries selected from the group consisting of plasticizers, lubricants, antioxidants, adhesion promoters, and light stabilizers, andE) from 0 to 200 ppm of a member selected from the group consisting of carbon black, graphite, and animal charcoal;preparing a transparent molded article from the polymer mixture; and exposing the transparent molded article to laser radiation to produce a transparent molded article having high-contrast inscription thereon.