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US 8,575,296 B2Granted
Polyester articles having simulated metallic or pearlescent appearance
AssigneePolyOne Corporation
InventorsGary Vernon, David Rosendale
Life of this patent
Estimating the term…
Abstract
A polyester article is made to appear lustrously metallic or pearlescent by the addition of polymethylpentene and non-metallic, non-pearlescent colorant; and optionally other functional additives. The colorant can be one or more pigments, one or more dyes, or combination thereof. A stretch blow molded plastic article, such as a bottle, using the polymethylpentene in the polyester can simulate the appearance of a metallic surface or a pearlescent luster even though non-metallic and non-pearlescent colorants are used.
Claims20
A plastic article, comprising:
- (a) a matrix of polyester and
- (b) polymethylpentene dispersed throughout the matrix, and
- (c) at least one non-metallic, non-pearlescent colorant dispersed throughout the matrix, wherein surfaces of the article have a brightness and chromaticity which simulates the appearance of metallic pigment or pearlescent pigment throughout the matrix because the brightness and chromaticity values change as the angle of the surface of the article changes relative to a constant light source.
Dependencies are inferred from the claim text.