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US 7,022,801 B2Granted
Polymeric surfactants derived from cyclic monomers having pendant fluorinated carbon groups
AssigneeOMNOVA Solutions Inc.
InventorRobert E. Medsker
Life of this patent
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Abstract
A fluorine containing polymer which acts as a wetting, flow or leveling agent, and has at least one polar group. The polymer has at least one pendant or ether side chain containing from about 1 to about 20 carbon atoms with at least 25% of the hydrogen atoms being replaced by fluorine atoms. The fluorinated polymers unexpectedly impart wetting, flow or leveling properties to a variety of coatings while producing little foam.
Claims14
A grafted polysiloxane composition, comprising:
- a polysiloxane having a repeat unit of the formula
- wherein R1, R2, and R3, independently, is a hydrogen or an alkyl having from 1 to about 20 carbon atoms with the proviso that at least one of said R1, R2, and R3, groups is an alkyl,
- said polysiloxane repeat unit having a pendant fluorooxetane oligomer, polymer, or copolymer containing a repeat group of the formula
- wherein n is from 1 to about 6, wherein R is hydrogen or an alkyl having from 1 to about 6 carbon atoms, wherein DP is from 2 to about 100, and wherein each Rf, independently, is a linear or branched alkyl having from 1 to about 20 carbons with at least 50% of the hydrogen atoms being replaced by a fluorine atom.
1 more element
Dependencies are inferred from the claim text.