Ambient or low-temperature curable coatings for leather and othe

Details Ambient or low-temperature curable coatings for leather and othe Ambient or low-temperature curable coatings for leather and othe

1979-02-02

1981-03-17

Lusignan, Michael R.

Stock material or miscellaneous articles

Composite

Of polyimide

260 296TA, 260 296H, 4273884, 427389, 4273899, 4273935, 4274071, 427409, 427411, 427412, 428246, 428261, 428262, 428286, 428290, 428460, 428461, 428512, 428514, 428515, 428522, 428528, 428530, 428540, 428904, 526219, B32B 904

Patent

active

042568099

ABSTRACT:
Ambient or low-temperature curable aqueous dispersions of (1) an emulsion polymer containing units polymerized from a monomer mixture of (a) from about 0.25% to about 10% by weight of a polymerizable aldehyde, (b) from about 0.5% to about 10% by weight of an ethylenically unsaturated carboxylic acid, and (c) up to about 99.25% by weight of at least one copolymerizable mono-ethylenically unsaturated monomer, with (2) a curing agent selected from the group of dicarboxylic acid bis-hydrazides and bis-hydrazones are disclosed. The dispersions are useful in leather treating compositions, especially in top coat compositions. A process for producing fully finished leather, or leather substitutes is also disclosed.

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