Hydrophilic synthetic resins, esterified for stability to hydrol

Details Hydrophilic synthetic resins, esterified for stability to hydrol Hydrophilic synthetic resins, esterified for stability to hydrol

1997-10-17

1999-10-05

Short, Patricia A.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524598, 525471, 525519, 525521, C08G 600, C08G 1244

Patent

active

059625821

ABSTRACT:
Hydrophilic, hydrolytically-stable synthetic resins obtainable by reacting a hydroxyl-functional synthetic resin such as a ketone, ketone/aldehyde and/or urea/aldehyde and/or a hydrogenated product of the hydroxyl-functional synthetic resin thereof with a polycarboxylic acid, polycarboxylic anhydride, polycarboxylic ester and/or polycarbonyl halide, where 70-100 mol % of the polycarboxylic acid and/or derivatives is linked chemically via an ester linkage to the hydroxyl-functional synthetic resin by way of only one single function and 0-30 mol % of the acid and/or acid derivative is so linked by way of more than one function.

REFERENCES:
patent: 3464946 (1969-09-01), Downing

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