Hydroxy-functionalized polyester and poly(ester ether) oligomers

Details Hydroxy-functionalized polyester and poly(ester ether) oligomers Hydroxy-functionalized polyester and poly(ester ether) oligomers

1996-12-31

1998-07-14

Mosley, Terressa

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

Synthetic resins

From carboxylic acid or derivative thereof

528366, C08G 5900

Patent

active

057805822

ABSTRACT:
Hydroxy-functional polyester oligomers are prepared by contacting a hydroxy-functional aliphatic dicarboxylic acid or a mixture of dicarboxylic acids containing hydroxy-functional aliphatic diacids, with a diglycidyl ether or diglycidyl ester in the presence of an onium catalyst in an ether solvent under conditions suitable for forming the oligomer. The oligomers can be used as hot melt adhesives, adhesive tackifiers, plasticizers, heat-curable adhesives and heat-curable coatings. Some of these materials are biodegradable and are therefore suitable for application to compostable end products.

REFERENCES:
patent: 4191714 (1980-03-01), Yonezawa et al.
patent: 5171820 (1992-12-01), Mang et al.
patent: 5391652 (1995-02-01), Wang et al.
patent: 5496910 (1996-03-01), Mang et al.

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