Aqueous anionic poly (urethane/urea) dispersions

Details Aqueous anionic poly (urethane/urea) dispersions Aqueous anionic poly (urethane/urea) dispersions

1994-11-22

1997-12-30

Sergent, Rabon

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...

1563311, 1563314, 1563317, 4284231, 4284234, 4284237, 4284242, 4284246, 4284248, 4284251, 4284258, 524500, 524507, 524591, 525123, 525127, 525440, 525454, 525455, 525457, 525528, 528 71, 528906, C08L 7506, C08G 1846, C09D17506, C09J17506

Patent

active

057031584

ABSTRACT:
Sulfonated polyester polyols and mixtures of sulfonated polyester polyols and hydroxy carboxylic acids are used to prepare improved aqueous anionic poly(urethane/urea) dispersions with a high crystallization rate, low heat activation temperature, high green strength, stability at low pH, which show good compatibility with other water based polymers and with crosslinkers. The aqueous anionic poly(urethane/urea) dispersions have high heat resistance after curing or blending with a crosslinker.

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