Resin composition, opaque film and method of preparing same
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United States of America Patent
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-
Dec 30, 1986
Grant Date -
N/A
app pub date -
Sep 3, 1985
filing date -
Sep 3, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A resin combination comprising a thermoplastic polymer matrix having dispersed therein as distinct phases, a multiplicity of small spherical solid particles of polybutylene terephthalate, the resin combination in opaque biaxially oriented polymeric film form and the same oriented film structure having on at least one surface thereof a void-free thermoplastic skin layer. The process for preparing a biaxially oriented opaque film comprising providing said resin combination, forming an unoriented film of said resin combination and biaxially orienting said film to an extent sufficient to opacify the same. The process also provides for the opaque film having a void-free thermoplastic skin layer on at least one surface thereof.
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