Water dispersible polyisocyanate composition and its uses

Details Water dispersible polyisocyanate composition and its uses Water dispersible polyisocyanate composition and its uses

2005-01-04

2005-01-04

Short, Patricia A. (Department: 1712)

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S131000, C525S457000, C525S458000, C528S076000, C528S077000, C524S503000, C524S507000, C524S591000

Reexamination Certificate

active

06838516

ABSTRACT:
The present invention relates to a water dispersible polyisocyanate composition comprising(a) an aliphatic polyisocyanate or a mixture of aliphatic polyisocyanates or a mixture of aliphatic polyisocyanates with other polyisocyanates; and(b) a reaction product of component (a) with a component selected from the group consisting of:(ii) a polyether diol or triol or a mixture thereof wherein a weight ratio of ethylene oxide (EO) to propylene oxide (PO) of the polyether diol and triol is greater than about 60:40, and the polyether diol has a molecular weight of about 300 to 1600 g/mole, and the polyether triol has a molecular weight of about 450 to 2400 g/mole; and(ii) a mixture of polyether monol and polyether polyol, wherein the polyether polyol is selected from the group consisting of polyether diol, triol and a mixture thereof wherein a weight ratio of EO to PO of the polyether monol, diol and triol is greater than about 60:40, and the polyether diol and triol have the molecular weights as defined above.

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