3-Hydroxybutyric acid polymers

Details 3-Hydroxybutyric acid polymers 3-Hydroxybutyric acid polymers

1982-10-14

1984-01-24

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

2642902, 264299, 528361, D01D 512

Patent

active

044276141

ABSTRACT:
A solvent-free preform of a 3-hydroxybutyric acid polymer is subjected to a compression step to reduce its thickness by at least 5% and the compressed preform is then drawn uni- or bi- axially to induce orientation.

REFERENCES:
patent: 4360488 (1982-04-01), Barham et al.

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