Liquids with reduced spreading tendency

Details Liquids with reduced spreading tendency Liquids with reduced spreading tendency

1982-03-17

1984-11-20

Morgenstern, Norman

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Adhesive outermost layer

156330, 427 82, 4272071, 428355, 4273855, 428413, 428447, 428448, 428458, 428463, 428480, 428522, B05D 512, B32B 2500

Patent

active

044838980

ABSTRACT:
The spreading of liquids, e.g., an epoxy resin, on a surface can be prevented or reduced if an inhibitor is added to the liquid. Inhibitors according to the invention have the generic formula [CX.sub.3 --(CY.sub.2).sub.n ].sub.N --R, where X is H or F, Y is H, F, or Cl, n is a number from about 1 to about 12, R is a carboxylic acid, an amide, a substituted amide, an amine, an alcohol, or an ester functionality, and N is 1, 2, or 3 if R is an alcohol or amine functionality, and 1 otherwise. The inhibitor typically has substantial solubility in at least one of the constituents of the liquid, and the liquid typically contains between about 0.05% and about 5% by weight of the inhibitor. Preferred inhibitors are perfluorooctanoic acid and 1H, 1H-pentadecafluorooctyl amine.

REFERENCES:
patent: 4134456 (1979-03-01), Inoue
patent: 4238528 (1980-12-01), Angelo et al.
Bernett et al., "Prevention of Liquid Spreading or Creeping", in Contact Angle, Wettability and Adhesion, Advances in Chemistry Series, vol. 43, (1964), pp. 332-340.
Cottington et al., "Effect of Polar-Non-Nonpolar Additives on Oil Spreading on Solids, with Applications to Nonspreading Oils", in same book as above, pp. 341-354.
Zisman, W. A., "Relation of the Equilibrium Contact Angle to Liquid and Solid Constitution", in same book as above, pp. 1-50.

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