Composition, for use in coatings, based on a mixture of...

Details Composition, for use in coatings, based on a mixture of... Composition, for use in coatings, based on a mixture of...

2007-07-17

2007-07-17

Lipman, Bernard (Department: 1713)

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...

C524S507000, C524S591000

Reexamination Certificate

active

11154250

ABSTRACT:
The present invention relates to a composition comprising at least one masked or unmasked polyisocyanate in the form of an aqueous emulsion whose mean size is between 0.1 and 10 micrometers; and at least one polyhydroxylated polymer, advantageously a polyol, in the form of a second aqueous dispersion whose mean size is between 10 and 200 nanometers wherein the content of polyhydroxylated polymer, advantageously of polyol, expressed in mass percent, is at least equal to ⅚R−20, with R equal to the ratio of the mean size (d50) of the emulsion to that of the dispersion of polyhydroxylated polymer, advantageously of polyol.

REFERENCES:
patent: 4609690 (1986-09-01), Gruber
patent: 4849262 (1989-07-01), Uhl
patent: 5401553 (1995-03-01), Miwa
patent: 5739206 (1998-04-01), Langlois
patent: 5994460 (1999-11-01), Langlois et al.

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