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US 9,809,497 B2Granted
Omniphobic grout additive
AssigneeWacker Chemical Corporation
InventorsDaniel J. Mania, James D. Greene
Life of this patent
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Abstract
An omniphobic aqueous stain repellant integral grout additive contains an aminoalkyl-substituted polyorganosiloxane, preferably, a higher alkyl alkoxysilane, an organopolysiloxane T resin bearing silicon-bonded alkoxy groups, a fluoro(meth)acrylate polymer or copolymer, and preferably, a film forming (meth)acrylate polymer or copolymer latex. The omniphobic grout additive provides high stain repellancy to grout in an economic manner.
Claims20
An omniphobic aqueous stain repellant grout additive, comprising:
- at least 5 weight percent based on the total weight of the additive, of ingredients (A) through (E):
- A) 1 to 30 parts by weight of at least one aminoalkyl-functional polyorganosiloxane;
- B) optionally, from up to 50 parts by weight of at least one higher alkyl alkoxysilane and/or partial hydrolysate thereof;
- C) from 20 to 30 parts by weight of at least one T-functional polyorganosiloxane resin containing alkoxy groups;
- D) from 20 to 70 parts by weight of at least one fluorocarbon compound containing at least one >C3 perfluorinated group;
- E) optionally, up to 20 parts by weight of at least one film forming acrylic latex polymer;
- where the parts by weight are for each component itself in neat form, and are relative to the total amount of components A) through E), and totaling 100 parts by weight, further comprising an effective dispersion stabilizing amount of at least one surfactant, and water.
4 more elements
Dependencies are inferred from the claim text.