Poly(3-hydroxybutanoic acid) film

Details Poly(3-hydroxybutanoic acid) film Poly(3-hydroxybutanoic acid) film

1997-12-18

1999-06-29

Nutter, Nathan M.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

435132, 435135, 435136, 435146, B29C 5502, C08G 6306

Patent

active

059170026

ABSTRACT:
Poly(3-hydroxybutanoic acid) having a number average molecular weight of not less than 500,000 is oriented at a draw ratio of 2-fold or more to reproducibly obtain a film made of poly(3-hydroxybutanoic acid) having biodegradability and biocompatibility as well as sufficient strength and flexibility (for example, tensile strength of not less than 30 MPa and elongation to break of not less than 15%).

REFERENCES:
patent: 4738811 (1988-04-01), Hara et al.
patent: 5585249 (1996-12-01), Reusch

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