Water soluble polyesters

Details Water soluble polyesters Water soluble polyesters

1982-10-25

1985-03-05

Phynes, Lucille M.

Compositions

Preservative agents

Anti-corrosion

42840224, 524916, 560204, 528222, 528300, 528303, B01J 1300

Patent

active

045029768

ABSTRACT:
Water-soluble polyesters useful in the preparation of bioerodible hydrogels are described. The polyesters are formed by condensing three monomers: a first monomer which is either an unsaturated aliphatic or cycloaliphatic dicarboxylic acid or an unsaturated aliphatic or cycloaliphatic diol; a second monomer which is a water-soluble polyglycol; and a third monomer which is a dicarboxylic acid having an electron-withdrawing group placed vicinally to a carbonyl group of the acid. Water-soluble polyesters with molecular weights ranging from about 5000 to about 30,000 are disclosed.

REFERENCES:
patent: 3444091 (1969-05-01), Petraglia

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