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...
Patent
1982-07-02
1984-03-06
Michl, Paul R.
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...
C08K 510
Patent
active
044355343
ABSTRACT:
The present invention relates to a novel coating composition which contains a coalescent. The coating composition comprises a latex of a normally solid organic addition polymer and a coalescing amount of an ether-ester solvent having the formula ##STR1## where R represents hydrogen or an alkyl group of 1 to 4 carbon atoms, R' represents a C.sub.1 -C.sub.4 alkyl group, and n is 1 or 2. Preferred coalescents include 2-ethoxyethyl p-toluate, 2-ethoxyethyl benzoate, 2-(2-ethoxyethoxy)ethyl p-toluate, 2-(2-ethoxyethoxy)-ethyl benzoate, 2-propoxyethyl o-toluate, 2-propoxyethyl benzoate, 2-ethoxyethyl o-toluate, and mixtures thereof. In preferred embodiments, the organic addition polymer comprises an acrylic homopolymer or copolymer. The coating composition preferably comprises about 5-50 parts by weight of the ether-ester solvent per 100 parts of the organic addition polymer.
REFERENCES:
patent: 2218237 (1940-10-01), Gordon
patent: 3126355 (1964-03-01), Birten et al.
patent: 3399158 (1968-08-01), Huitson
patent: 3532454 (1970-10-01), Fuhr et al.
patent: 3917447 (1975-11-01), Lazar et al.
patent: 4172064 (1979-10-01), Keeler
patent: 4265797 (1981-05-01), Suk
Journal of Paint Technology 45, (579, Apr. 1973), pp. 51-56, Kenneth L. Hoy, Union Carbide Corp; Estimating the Effectiveness of Latex Coalescing Aids.
Culver Larry J.
Jones Glenn C.
Cotey David E.
Eastman Kodak Company
Michl Paul R.
Reece III Daniel B.
Walker Alex H.
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