Back to results
US 9,752,060 B2Granted
Fluoroalkyl silicone compositions
Assignee3M Innovative Properties Company
InventorsZai-Ming Qiu, Jitendra S. Rathore
Life of this patent
Estimating the term…
Abstract
Provided is fluoroalkyl silicone of the formula (I): wherein each R1 is independently an alkyl or aryl; Rf is a perfluoroalkyl group, optionally substituted by one or more in-chain —O—, .S— or —NRf1— heteroatoms, where Rf1 is a perfluoroalkyl preferably a C1-C6 perfluoroalkyl; R3 is —H, —OR4; where R4 is a C1-C4 alkyl n is 0 to 2000; m may be zero; p may be zero, n+m+p is at least one; q is at least 3; R5 is H, alkyl, aryl-(CH2)n—CF2CHF—O—Rf; or R3; wherein the fluoroalkyl silicone has at least one fluorinated group of the formula (CH2)q—O—CF2CHF—O—Rf.
Claims21
A fluoroalkyl silicone of the formula:
- wherein
- each R1 is independently an alkyl or aryl;
- Rf is a perfluoroalkyl group, optionally substituted by one or more in-chain —O—, —S— or —NRf1— heteroatoms, where Rf1 is a perfluoroalkyl, preferably a C1-C6 perfluoroalkyl;
- R3 is —H, —OR4;
- where R4 is a C1-C4 alkyl
- n is 0 to 2000;
- m may be zero;
- p is at least one,
- n+m+p is at least two;
- q is at least 3;
- R5 is H, alkyl, aryl, —(CH2)q—O—CF2CHF—O—Rf, or R3;
- wherein the fluoroalkyl silicone has at least two fluorinated groups of the formula —(CH2)q—O—CF2CHF—O—Rf.
9 more elements
Dependencies are inferred from the claim text.