Preparation process for bioabsorbable polyester

Details Preparation process for bioabsorbable polyester Preparation process for bioabsorbable polyester

1989-10-27

1991-08-20

Nielsen, Earl

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

Synthetic resins

From carboxylic acid or derivative thereof

528481, 528501, C08G 6308, C08G 6388

Patent

active

050415298

ABSTRACT:
The invention relates to a process for the preparation of a bioabsorbable polyester comprising reacting said polyester under reduced pressure in the reaction system while maintaining said polyester in the molten state during the second half of the polymerization reaction or after completion of the reaction and obtaining said polyester which contain almost no residue of unreacted monomers and volatile ingredients of low molecular weight.

REFERENCES:
patent: 3565869 (1971-02-01), De Prospero
patent: 3621003 (1971-11-01), Selman et al.
patent: 3772420 (1973-11-01), Glick et al.
patent: 3890283 (1975-06-01), Casey et al.
patent: 4439602 (1984-03-01), McCurdy et al.
patent: 4677191 (1987-06-01), Tanaka et al.
patent: 4728721 (1988-03-01), Yamamoto et al.
patent: 4797468 (1989-01-01), De Vries

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