Production of aliphatic copolyesters

Details Production of aliphatic copolyesters Production of aliphatic copolyesters

1996-02-22

1997-07-29

Mosley, Terressa

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

Synthetic resins

From carboxylic acid or derivative thereof

528271, 528272, C08G 6378

Patent

active

056523254

ABSTRACT:
Aliphatic polyester copolymers, which have molecular weights high enough for practical use and which are excellent in thermal stability, tensile strength and moldability, and which are biodegradable as well, are provided, which are produced by a process comprising effecting polycondensation of an aliphatic diol and an aliphatic dicarboxylic acid in the presence of an aliphatic monohydroxymonocarboxylic acid in a specific amount and of a catalyst comprising a germanium compound.

REFERENCES:
patent: 5401796 (1995-03-01), Kashima et al.
patent: 5403897 (1995-04-01), Ebato et al.
patent: 5484882 (1996-01-01), Takada et al.
Database WPI, Derwent Publications, AN-96-094286, JP-A-08-003-296, Jan. 9, 1996.
Chemical Abstracts, vol. 123, No. 18, Oct. 30, 1995, AN-231452, JP-A-07-053-899, Feb. 28, 1995.
Database WPI, Derwent Publications, AN-95-070374, JP-A-06-345-856, Dec. 20, 1994.
Chemical Abstracts, vol. 80, No. 4, Jan. 28, 1974, AN-15485, JP-B-47-042-756, Oct. 28, 1972.

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