Abstract: An aqueous composition formed by mixing a hydrolysable silicon compound having a low solubility in water (e.g a fluorosilane), a major proportion of water, and a surfactant, also contains an effective amount of a co-solvent (e.g. certain glycol ethers) which is sparingly soluble in water to improve the stability of the composition. The composition may be used for surface treatment.
Abstract: A composition for film formation and a film obtained by heating the composition.
The composition comprises:
(A) a hydrolyzate and/or partial condensate of a compound represented by the following formula (1)
R1nSi(OR2)4-n (1)
wherein R1 and R2 may be the same or different and each represent an alkyl group having 1 to 5 carbon atoms or an aryl group having 6 to 20 carbon atoms, and n is an integer of 1 or 2;
(B) a metal chelate compound represented by the following formula (2)
R3tM(OR4)s-t (2)
wherein R3 represents a chelating agent, M represents a metal atom, R4 represents an alkyl group having 2 to 5 carbon atoms or an aryl group having 6 to 20 carbon atoms, s represents a valence of the metal M, and t is an integer of 1 to s;
(C) an organic solvent having a boiling point of 110 to 180° C.; and
(D) &bgr;-diketone.
Abstract: Gloss and ease of application of sprayable aqueous organopolysiloxane vinyl protectant emulsions are both improved by the addition of a gloss-improving additive. Protectants may be formulated to achieve higher gloss with the same amount of active organopolysiloxane or the same or higher gloss with less organopolysiloxane. Preferred gloss-improving additives are water soluble organic viscosifiers and/or minor amounts of inorganic, viscosity-increasing particulate solids.
Type:
Grant
Filed:
February 12, 1999
Date of Patent:
March 27, 2001
Assignee:
Wacker Silicones Corporation
Inventors:
Ronald L. Muntz, Michael D. Lowery, Bryan E. Fry