Thixotropic alkyd resins and the use thereof in coating composit

Details Thixotropic alkyd resins and the use thereof in coating composit Thixotropic alkyd resins and the use thereof in coating composit

1995-12-14

1997-01-07

Woodward, Ana

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...

524445, 524447, 524492, 524493, 524538, 5254205, 525437, C08L 7700

Patent

active

055917933

ABSTRACT:
Novel thixotropic alkyd resins are obtained by reacting at a temperature of between about 120.degree. C. to about 150.degree. C. for at least one hour (a) at least one alkyd resin and (b) a polyamide comprising the reaction product of: (i) a polycarboxylic acid; (ii) an active hydrogen compound having the formula X.sub.m --R--Y.sub.n, wherein R represents a group containing from 2 to 12 carbon atoms, X and Y are independently selected from primary amino, secondary amino and hydroxy, and m and n are each at least 1 and the sum of (m+n) is at least 2; and (iii) a capping agent comprised of an unsaturated and/or hydroxy functional monocarboxylic acid having from 8 to 22 carbon atom. The thixotropic alkyd resins of the present invention are particularly useful in preparing thixotropic paint and coating compositions having superior leveling and sag resistance.

REFERENCES:
patent: 2663649 (1953-12-01), Winkler
patent: 3131201 (1964-04-01), Hovey
patent: 3254040 (1966-05-01), Aronoff et al.
patent: 4026850 (1977-05-01), Frank et al.
patent: 4128436 (1978-12-01), O'Hara et al.
patent: 4462926 (1984-07-01), Prater et al.
patent: 4778843 (1988-10-01), Cooperman et al.
patent: 4840980 (1989-06-01), Pekarik
patent: 5034444 (1991-07-01), Yun et al.
patent: 5180802 (1993-01-01), Hartman et al.
Thixatrol .RTM. TSR, DS-544, Aug. 1991, Rheox, Inc.
Designing Rheological Additives For Coatings Systems, American Paint & Coatings Journal, Jan. 4 1993, pp. 38-47.
H. N. Nae and W. W. Reichert, Rheological Properties And Thickening Mechanisms of Polymeric Rheology Modifiers, NL Chemicals, pp. 624-628.
H. R. Crawford, Flexibility--The Key To Wood Protection, Surface Coatings Australia, Nov. 1987, pp. 17-18.
K. O'Hara and W. P. Gordon, Thixotropy In Industrial Coatings, XIth International Conference In Organic Coatings Science And Technology, Proceedings 11, 8-12 Jul. 1985, Athens, Greece, pp. 273-292.
A. Kastanek and K. Hajek, A Study Of Thixotropic Flow Behavior of Alkyd Solutions, Journal Of Coatings Technology, vol. 63, No. 800, Sep. 1991, pp. 75-82.
W. E. Shackelford and D. W. Glaser, Thixotropic Modification Of Alkyd Resin Paints With Polyamides, Journal of Paint Technology, vol. 38, No. 496, May 1966, pp. 293-301.
L. Newton, Heat and Polar Solvent Tolerant Thixotropic Resins, Paint & Resin -- Sep./Oct. 1982, pp. 14, 15 & 38.

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