Stable aqueous polyisocyanate emulsions

Details Stable aqueous polyisocyanate emulsions Stable aqueous polyisocyanate emulsions

C - Chemistry, Metallurgy

08

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402/131, 400/740

C08L 75/04 (2006.01) B27N 3/00 (2006.01) C08G 18/28 (2006.01) C08G 18/48 (2006.01) C08G 18/70 (2006.01) C08G 18/76 (2006.01) C08L 97/02 (2006.01)

Patent

CA 1195048

ABSTRACT OF THE DISCLOSURE Isocyanate compositions are disclosed which yield aqueous emul- sions on admixture with water. The emulsions are sufficiently stable to permit emplyoment as particle board binders and like uses. The compositions of the invention are derived by reaction of a polymethyl- ene polyphenyl polyisocyanate with a particular group of polyethylene glycols which have been capped with a block of propylene oxide resi- dues.

428506

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