Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1974-05-08
1976-02-24
Griffin, Ronald W.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
260 35, 260 17R, 260 312R, 260 316, 260 318R, 260 318M, 260 324, 260 328N, 260 334R, 260 336UA, 260 338UA, 260 8081, 260 861E, 260 867, 260862, 260899, C09D 348, C09D 366, C09D 381
Patent
active
039403530
ABSTRACT:
Low molecular weight copolymers (1) acrylic acid esters or methacrylic acid esters of alcohols such as methanol with (2) esters of bicyclic alcohols such as isobornyl alcohol and unsaturated acids such as methacrylic acid, as contrasted with high molecular weight copolymers of such monomers (1) and (2) (see U.S. Pat. No. 3,485,775) and as contrasted to other acrylic polymers, are found to be exceptional in compatibility with practically all types of polyesters and alkyds and with many other types of lacquer film-forming materials. The modifiers, particulary for alkyds, need not be selected on the basis of the oil length or solvent (aromatic or aliphatic), the modifiers being compatible with long oil alkyds, medium oil alkyds, and short oil alkyds. When small amounts of unsaturated amine-containing monomers or unsaturated carboxylic acids, or other polar monomers and combinations thereof, are incorporated in the polymer solutions, they become improved pigment dispersants. Such pigment dispersions, unexpectedly, can be let down with many types of synthetic resins and used by air-drying or baking the coated articles. Lacquers for metals, paints, and printing inks are examples of uses for such blends.
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Griffin Ronald W.
Rohm and Haas Company
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