Method for enhancement of the surfaces of molded plastic products
    1.
    发明授权
    Method for enhancement of the surfaces of molded plastic products 失效
    增强塑胶制品表面的方法

    公开(公告)号:US5746961A

    公开(公告)日:1998-05-05

    申请号:US566906

    申请日:1995-12-04

    摘要: An enhancement composition and a method for its use in a molding process. The enhancement composition is applied to the interior surfaces of the mold cavity used in a molding process such as blow molding, injection molding, thermoforming or rotational molding. The enhancement composition is applied prior to closing of the mold and molding of the plastic article. The enhancement composition comprises a liquid carrier containing up to about 50 weight percent of enhancement solids which comprise a mixture of an enhancement solid such as particles of varied thermoplastic and thermosetting resins, metal flakes, glass beads, carbon, graphite, etc., and a binder solid which can be a hydrocarbon resin, wax, rosin or terpene base resin. The invention provides for almost unlimited modification of the surfaces of molded plastic products, offering the plastics fabricator the ability to mold products having very specialized surface properties with a low cost structural polymer, e.g., a product molded of low cost, low density polyethylene having the surface characteristics of Teflon.

    摘要翻译: 增强组合物及其在成型工艺中的应用。 增强组合物被应用于用于诸如吹塑,注射成型,热成型或旋转成型的成型过程中使用的模腔的内表面。 增强组合物在模具闭合和塑料制品的模塑之前被应用。 增强组合物包含含有至多约50重量%增强固体的液体载体,其包含增强固体如各种热塑性树脂和热固性树脂的颗粒,金属薄片,玻璃珠,碳,石墨等的混合物,和 粘合剂固体,其可以是烃树脂,蜡,松香或萜烯基树脂。 本发明提供了对模制塑料制品表面的几乎无限制的改性,为塑料制造商提供了用低成本的结构聚合物模制具有非常专业的表面性能的产品的能力,例如低成本,低密度聚乙烯模制的产品 特氟隆的表面特性。