Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1981-07-10
1982-10-19
Torrence, Dolph H.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
260453AB, 260453SP, 528 59, C08G 1878, C07C12724
Patent
active
043551386
ABSTRACT:
The present invention is directed to light stable polyisocyanate adduct mixtures with an average functionality greater than 2.0 and an isocyanate content of between about 4 and 19 percent by weight based on solids, which has good compatibility with apolar solvents and good storage stability in a solution of polyisocyanate solvents. The polyisocyanate adduct mixtures are based on the reaction product of a polyisocyanate, preferably a biuret-containing polyisocyanate, with a first monohydroxy compound containing a saturated hydrocarbon chain of at least 8 carbon atoms and a second monohydroxy compound containing at least one polarity inducing group. Alternatively, both the saturated hydrocarbon chain and the polarity inducing group may be present in the same monohydroxy compound.
The present invention is additionally directed to the use of the polyisocyanate adduct mixtures in the process of curing alkyd or acrylic resins and to compositions containing the adduct mixture and alkyd or acrylic resins.
REFERENCES:
patent: 3124605 (1964-03-01), Wagner
patent: 3201372 (1965-08-01), Wagner
patent: 3358010 (1967-12-01), Britain
patent: 3789037 (1974-01-01), Miller
Polyurethanes: Chemistry & Technology, vol. II Technology Saunders and Fritsch, 1964, pp. 468-477.
Hudson, deceased George A.
Markusch Peter
White, administrator by Richard L.
Harsh Gene
Mobay Chemical Corporation
Pope Lawrence S.
Roy Thomas W.
Torrence Dolph H.
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