Polysilane compound containing perfluoro(poly)ether group
AssigneeThe Chemours Company Fc, LLC
InventorAlexander Borisovich Shtarov
Life of this patent
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Abstract
Composition containing at least one fluorinated silane of the formula (I): (Rf)p—Y—(SiQkZ3-k)w (I) wherein: Rf represents monovalent R1f(OC4F8)a—(OC3F6)b—(OC2F4)c—(OCF2)d wherein a, b, c, and d independently represent an integer of from 3 to 200 inclusive, and the sum of a, b, c, and d is at least 1; R1f is fluorinated alkyl group, linear or branched, with 1-4 carbons; Y represents a polyvalent organic group, Q represents a hydrolyzable group, a hydroxyl group, or alkyloxy group and is capable of forming a siloxane bond with Si atoms located at the terminal of the molecular chain of formula (I) or other active sites of the treated surface, Z is a monovalent alkyl group, or hydrogen; p is 1 or 2, w is 2-14, p+w is 3 to 15, and k is from 1 to 3.
Claims8
A coating composition comprising:
- at least one fluorinated silane of the formula (I):
- (Rf)p—Y—(SiQkZ3-k)w (I)
- wherein:
- Rf represents monovalent R1f(OC4F8)a—(OC3F6)b—(OC2F4)c—(OCF2)d wherein a, b, c, and d independently represent an integer of from 3 to 200 inclusive, and the sum of a, b, c, and d is at least 1;
- R1f is fluorinated alkyl group, linear or branched, with 1-4 carbons;
- Y represents a polyvalent organic group that enables branching and can contain polyvalent alkyl, divalent polysiloxane, p-, m-, or o-phenylene;
- Y contains at least 2 or more of the heteroatom containing groups selected from:
- —O—, —S—, —NR2—, —C(O)O—, C(O)NR2—, where R2 is covalent bond, divalent alkylene, hydrogen, methyl, ethyl or isopropyl;
- Q represents a hydrolyzable group, a hydroxyl group, or alkyloxy group, Z represents a monovalent alkyl group such as methyl, ethyl, propyl, butyl, phenyl group, or hydrogen, p is 1 or 2, w is 2-14, p+w is 3 to 15, and k is from 1 to 3.
A coating composition comprising:
- at least one fluorinated oxirane of the formula (IV):
- wherein:
- Rf represents monovalent R1f(OC4F8)a—(OC3F6)b—(OC2F4)c—(OCF2)d wherein a, b, c, and d independently represent an integer of from 3 to 200 inclusive, and the sum of a, b, c, and d is at least 1;
- R1f is fluorinated alkyl group, linear or branched, with 1-4 carbons;
- L is a divalent or trivalent group containing at least 1 of the following heteroatoms —O—, —S—, and —N<, j is from 1 to 2, and p is from 1 to 2.
Dependencies are inferred from the claim text.