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US 7,396,866 B2Granted
Fluorochemical diesters as repellent polymer melt additives
Assignee3M Innovative Properties Company
InventorsChetan P. Jariwala, John A. Temperante
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Abstract
A thermoplastic polymer comprising a fluorochemical ester composition of formula I: C4F9SO2N(Q1)(CH2)a—O—C(O)—(CH2)n—C(O)O(CH2)bNQ2SO2C4F9 (I) wherein Q1 and Q2 which may be the same or different are each a hydrogen or an alkyl group of 1 to 4 carbon atoms; a is an integer from 2 to 11; b is an integer from 2 to 11; and n is at least 10.
Claims8
A composition comprising a material prepared by:
- (a) forming a mixture of (1) a thermoplastic polymer, and (2) a fluorochemical ester composition of the formula I:
- C4F9SO2N(Q1)(CH2)a—O—C(O)—(CH2)n—C(O)O(CH2)bNQ2 SO2C4F9 (I)
- wherein
- Q1 and Q2 which may be the same or different are each a hydrogen or an alkyl group of 1 to 4 carbon atoms;
- a is an integer from 2 to 11;
- b is an integer from 2 to 11;
- and n is from 10 to 20;
- and
- (b) melt extruding the mixture.
6 more elements
Dependencies are inferred from the claim text.