Shaped articles from polyester and cellulose ester compositions

Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Composite having voids in a component

Patent

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Details

4283155, 4283179, 428220, 428401, 428 36, 428364, 428378, 523218, B32B 522, B32B 326, C08J 932

Patent

active

047709316

ABSTRACT:
Disclosed are shaped articles comprising a continuous polyester phase having dispersed therein microbeads of cellulose acetate which are at least partially bordered by void space, the microbeads of cellulose acetate being poresent in an amount of about 10-30% by weight based on the weight of said polyester, said void space occupying about 2-50% by volume of said shaped article. Such articles have excellent physical properties, especially optical properties, and are useful in such applications as paper substitutes, for example.

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