Title: Water-based coating compositions

Abstract: The present invention is concerned with film-forming polymer dispersions, especially in aqueous systems, such as aqueous solutions of polymers of monoethylenically unsaturated monomers as well as latices or dispersions in an aqueous medium of water-insoluble particles of polymers, such as those obtained by emulsion polymerization. It involves the addition to such aqueous polymer systems in order to improve hardness, blocking-resistance, print-resistance and film-formation to yield coherent films at room temperature or below, of a non-volatile, reactive monomer comprising a (meth)acrylic acid ester of a monohydroxy diolether of dicyclopentenyl alcohol to serve as an air-curing coalescent. The designation (meth)acrylic acid is intended to refer to either acrylic acid or methacrylic acid and also generically to both. Similarly, (meth)acrylate, if and when used in the specification and claims herein, is intended to generically refer to an "acrylate" and a "methacrylate".

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Inventors: Emmons, William D. (Huntingdon Valley, PA, US)
Nyi, Kayson (Sellersville, PA, US)

Application Number: 806572
Filing Date: 1977-06-14
Publication_date: 1979-02-27
Assignee: Rohm and Haas Company (Philadelphia, PA)
Primary Class(es): 524/237 524/532, 525/289, 525/301.5, 526/282, 526/283
Other Classes:
US Patent Ref:

2393609	Jan, 1946	Bruson	260/611.
3575904	Apr, 1971	Clarke	260/23.
3650669	Mar, 1972	Osborn et al.	204/159.
3956217	May, 1976	Gazeley	260/29.
4033920	Jul, 1977	Isozaki et al.	260/29.

Other Refs: Other References: The Journal of the Amer. Chem. Soc. vol. 68, pp. 8-10, (1946), Bruson et al.