Anti-icing compositions containing thickener blend having polyac

Details Anti-icing compositions containing thickener blend having polyac Anti-icing compositions containing thickener blend having polyac

1990-11-19

1992-06-02

Clingman, A. Lionel

Compositions

Frost-preventing, ice-thawing, thermostatic, thermophoric,...

106 13, 524388, C09K 318

Patent

active

051184354

ABSTRACT:
Anti-icing compositions, such as used on aircraft wing surfaces, may be thickened using a blend of a polyacrylic acid and a copolymer of polyacrylic acid with a vinyl monomer, where the copolymer acts as a thickener modifier. The two polymers form a thickener blend. The polyacrylic acid may have a weight average molecular weight of from about 2,500,000 to about 3,500,000 and be slightly crosslinked with a diene monomer. The composition also contain an alkylene glycol component, such as propylene glycol, diethylene glycol and mixtures thereof. These compositions retain a high viscosity,even when diluted with water, and exhibit a highly pseudo plastic rheology indicating desirable flow off characteristics. A neutralizing agent to neutralize at least partially the carboxylic acid groups of the thickening blend is also preferably included.

REFERENCES:
patent: 3412030 (1968-11-01), Wahlberg
patent: 3488215 (1970-01-01), Shepherd et al.
patent: 3635756 (1972-01-01), Shepherd et al.
patent: 3940356 (1976-02-01), Byrnes
patent: 4141919 (1979-02-01), Gremmelmaier
patent: 4283297 (1981-08-01), Peters et al.
patent: 4358389 (1982-11-01), Konig-Lumer et al.
patent: 4698172 (1987-10-01), Tye et al.
patent: 4744913 (1988-05-01), Salvador et al.
"Carbopol.RTM. Product Guide", B. F. Goodrich product bulletin, Oct. 1987.
WPI Abstract to DE 1940825-A.
WPI Abstract to FR 2057577-A.
WPI Abstract to De 2407123-B.
Chemical Abstracts 84(16): 106720j.
"Carbopol.RTM. Water Soluble Resins", B. F. Goodrich product bulletin, Sep., 1987.
"Carbopol.RTM. Product Guide," B. F. Goodrich product bulletin, Oct., 1987.
"Principal Characteristics of Carbopol Resins," B. F. Goodrich product bulletin, Feb., 1989.
F. Schosseler et al., "Swelling Kinetics of Small Spherical Ionic Gels," J. Dispersion Science and Technology, vol. 8, No. 4, pp. 321-339, 1987.
R. Y. Lochhead, et al., "Poly(acrylic acid) Thickeners," Polymers in Aqueous media, J. E. Glass, Ed., Advances in Chemistry Series, #223, pp. 113-147, 1989.

Affiliated with

Also associated with

Rating

Anti-icing compositions containing thickener blend having polyac does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Anti-icing compositions containing thickener blend having polyac, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Anti-icing compositions containing thickener blend having polyac will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2226721