Water-dilutable resins, process for preparing them, and their us

Details Water-dilutable resins, process for preparing them, and their us Water-dilutable resins, process for preparing them, and their us

1998-10-06

2000-09-05

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...

524502, 524539, 524542, 524592, 524598, 525153, 525163, 525437, 525441, 525443, 525471, 5255175, 525518, 525519, 525521, C09D16102, C09D16120

Patent

active

061144347

ABSTRACT:
Resins AB which are dilutable in water following neutralization and have an acid number of from 25 to 160 mg/g, obtainable by reacting mass fractions, based in each case on the sum of the masses of the solids in the reaction mixture, of A from 30 to 90% of at least one acid-functional polymer selected from polyesters, dimerized and oligomerized unsaturated aliphatic carboxylic acids and polymers of olefinically unsaturated monomers, each having an acid number of from 30 to 240 mg/g, and B from 10 to 70% of at least one water-insoluble aldehyde resin or ketone resin obtainable by condensing ketones, ketones together with aldehydes, ketones with urea or aldehydes with urea, having a hydroxyl number from 20 to 300 mg/g, a softening point of from 60 to 140.degree. C. and a number-average molar mass of from 500 to 3000 g/mol.

REFERENCES:
patent: 3796770 (1974-03-01), Daimer et al.
patent: 3887641 (1975-06-01), Tsuchiya et al.
patent: 4644028 (1987-02-01), Fischer

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