Liquids with reduced spreading tendency

Details Liquids with reduced spreading tendency Liquids with reduced spreading tendency

B - Operations, Transporting

05

D

31/154, 117/183,

B05D 5/12 (2006.01) B32B 25/00 (2006.01) C08J 3/12 (2006.01) C08K 5/00 (2006.01) C08K 5/095 (2006.01) C08K 5/17 (2006.01) C09D 7/12 (2006.01) C09K 3/32 (2006.01) H01L 23/482 (2006.01) H05K 1/09 (2006.01)

Patent

CA 1215799

- 21 _ LIQUIDS WITH REDUCED SPREADING TENDENCY 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 [CX3-(CY2)n]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.

422714

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