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US 8,808,868 B2Granted
Fluorinated copolymers of (meth)acrylates and (meth)acrylic acid amine complexes
AssigneeE. I. Du Pont de Nemours and Company
InventorsSiddhartha Shenoy, Joel M. Pollino, Anilkumar Raghavanpillai, Brad M. Rosen, John Russell Crompton, Jr.
Life of this patent
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Abstract
A stain resistant, oil and water repellent copolymer comprising a copolymer prepared from fluorinated (meth)acrylate and amine salts of (meth)acrylic acid, and a method of providing stain resistance, oil and water repellency to substrates and a treated substrate.
Claims16
A copolymer comprising formula (I)
- wherein
- Rf is C4 to C6 fluoroalkyl, optionally interrupted by one or more —O —, —CH2—, —CFH—, or combinations thereof;
- n is an integer from 1 to 10;
- R1 and R2 are each independently H or CH3;
- R3 is H, CH3, or CH2CH3;
- R4 is H, CH3, or CH2CH3;
- R5 is C6 to C18 alkyl or Y;
- R6 is H, CH3, or CH2CH3;
- R7 is H, CH3, or CH2CH3;
- R8 is H, CH3, CH2CH3, or Y;
- wherein a, b, and c are defined such that either
- a is 30 to 50 mol %, b is 1 to 10 mol %, and c is 45 to 65 mol %;
- or
- a is 35 to 45 mol %, b is 0 mol %, and c is 55 to 65 mol %;
- provided that (a+b+c) equals 100;
- Y is
- R9 is each independently alkyl, alkyl alcohol, or hydrogen;
- and
- m is 1 to 10.
16 more elements
A method of providing water repellency, oil repellency and stain resistance to a substrate surface comprising contacting the substrate surface with a copolymer of Formula (I)
- wherein
- Rf is C4 to C6 fluoroalkyl, optionally interrupted by one or more —O—, —CH2—, —CFH—, or combinations thereof;
- n is an integer from 1 to 10;
- R1 and R2 are each independently H or CH3;
- R3 is H, CH3, or CH2CH3;
- R4 is H, CH3, or CH2CH3;
- R5 is C6 to C18 alkyl or Y;
- R6 is H, CH3, or CH2CH3;
- R7 is H, CH3, or CH2CH3;
- R8 is H, CH3, CH2CH3, or Y;
- wherein a, b, and c are defined such that either
- a is 30 to 50 mol %, b is 1 to 10 mol %, and c is 45 to 65 mol %;
- or
- a is 35 to 45 mol %, b is 0 mol %, and c is 55 to 65 mol %;
- provided that (a+b+c) equals 100;
- Y is
- R9 is each independently alkyl, alkyl alcohol, or hydrogen;
- and
- m is 1 to 10.
16 more elements
Dependencies are inferred from the claim text.