Composition and method for providing stain release or stain repellency to substrates

Patent metadata

Field	Value
Publication number	US-9410054-B2
Application number	US-201414310688-A
Country	US
Kind code	B2
Filing date	Jun 20, 2014
Priority date	Dec 19, 2008
Publication date	Aug 9, 2016
Grant date	Aug 9, 2016

Abstract

The present invention provides a composition for treatment, the composition comprising dispersed in water (i) a fluorinated compound, (ii) a potassium or lithium silicate and (iii) an acrylic polymer. The invention further provides a method of treating substrates with the composition.

First claim

What is claimed is:

1. A method for providing stain release or stain repellence properties to natural or man-made stone, the method comprising applying a treatment composition to the natural or man-made stone, wherein the treatment composition comprises (i) a fluorinated compound, (ii) a potassium or lithium silicate and (iii) an acrylic polymer, dispersed in water; wherein stains are removable from natural or man-made stone having the composition disposed thereon; wherein the treatment composition comprises a total amount of (i), (ii), and (iii) in an amount between 0.5% and 60% by weight.

2. The method according to claim 1 wherein stains caused by oils, food dressings, wine, coffee, tea, or soft drinks are removable from natural or man-made stone having the composition disposed thereon.

3. The method according to claim 1 wherein said acrylic polymer is selected from the group consisting of homo- and copolymers of an acrylate.

4. The method according to claim 3 wherein said acrylic polymer is a copolymer of an acrylate and styrene.

5. The method according to claim 1 wherein the amount of fluorinated compound is between 10 and 70% by weight of the total weight of solids.

6. The method according to claim 1 wherein the fluorinated compound comprises one or more perfluorinated hydrocarbon residues having at least 3 carbon atoms.

7. The method according to claim 6 wherein the perfluorinated hydrocarbon residues have 4 to 6 carbon atoms each.

8. A method for providing stain release or stain repellence properties to natural or man-made stone, the method comprising applying a treatment composition to the natural or man-made stone, wherein the treatment composition comprises (i) a fluorinated compound, (ii) a potassium or lithium silicate and (iii) an acrylic polymer, dispersed in water;
wherein the fluorinated compound comprises one or more units derived from a fluorinated monomer of the formula:
R f -Q-E

wherein:
R f represents a partially or fully fluorinated aliphatic group having 3 to 12 carbon atoms;
Q represents a covalent bond or a non-fluorinated organic linking group; and
E represents a free radical polymerizable group;

wherein the treatment composition comprises a total amount of (i), (ii), and (iii) in an amount between 0.5% and 60% by weight.

9. A method for providing stain release or stain repellence properties to natural or man-made stone, the method comprising applying a composition to the natural or man-made stone, wherein the composition comprises (i) a fluorinated compound, (ii) a potassium or lithium silicate and (iii) an acrylic polymer, dispersed in water;
wherein the fluorinated compound is a reaction product of an isocyanate, a fluorinated oligomer having an isocyanate reactive group, and an aliphatic compound having an isocyanate reactive group;
wherein the fluorinated oligomer having an isocyanate reactive group is a free-radical polymerization reaction product of fluorinated monomers and optionally non-fluorinated monomers in the presence of a mercapto functional chain transfer agent;
wherein the fluorinated monomers are represented by the formula:
R f -Q-C(R 1 )═C(R 2 ) 2   (II)

wherein:
Rf represents a partially or fully fluorinated aliphatic group having 3 to 12 carbon atoms;
Q represents a covalent bond or a non-fluorinated organic linking group;
R 1 represent H or a lower alkyl group having 1 to 4 carbon atoms; and
each R 2 independently represents H or a straight chain or branched chain alkyl group having 1 to 4 carbon atoms;

wherein the optional non-fluorinated monomers are represented by the formula:
R h -Q′-C(R 3 )═C(R 4 ) 2   (IV)

wherein:
R h represents a non-fluorinated group;
Q′ represents a covalent bond or a non-fluorinated organic linking group;
R 3 represent H or a lower alkyl group having 1 to 4 carbon atoms; and
each R 4 independently represents H or a straight chain or branched chain alkyl group having 1 to 4 carbon atoms; and

wherein the mercapto functional chain transfer agent is represented by the formula:
R′(SH) m

wherein:
R′ represents a hydrocarbon group comprising an isocyanate reactive group; and
m is 1 to 4.

10. The method according to claim 9 wherein the fluorinated monomers are selected from the group consisting of:
CF 3 CF 2 CF 2 CF 2 CH 2 CH 2 OCOCR 3 ═CH 2
CF 3 (CF 2 ) 3 CH 2 OCOCR 3 ═CH 2
CF 3 (CF 2 ) 3 SO 2 N(CH 3 )CH 2 CH 2 OCOCR 3 ═CH 2
CF 3 (CF 2 ) 3 SO 2 N(C 2 H 5 )CH 2 CH 2 OCOCR 3 ═CH 2
CF 3 (CF 2 ) 3 SO 2 N(CH 3 )CH 2 CH(CH 3 )OCOCR 3 ═CH 2
(CF 3 ) 2 CFCF 2 SO 2 N(CH 3 )CH 2 CH 2 OCOCR 3 ═CH 2
CF 3 CF 2 (CF 2 CF 2 ) 2 CH 2 CH 2 OCOCH═CH 2
wherein R 3 is hydrogen, methyl or n-butyl.

11. The method according to claim 9 wherein the aliphatic compound having an isocyanate reactive group is represented by the formula:
R 3 —(Z) q

wherein:
Z is an isocyanate reactive group selected from the group consisting of an amino group, a hydroxy group, and a carboxyl group;
q is 1 to 4; and
R 3 is an organic aliphatic group having from 1 to 75 carbon atoms.

12. The method according to claim 11 wherein Z is a hydroxyl group, q is 1, and R 3 is a monovalent alkyl group having from 12 to 75 carbon atoms.

13. The method according to claim 9 wherein the isocyanate is selected from the group consisting of a biuret-containing triisocyanate, an isocyanurate-containing tri-isocyanate, and an azetedinedione-containing diisocyanate.

14. A method for providing stain release or stain repellence properties to natural or man-made stone, the method comprising applying a composition to the natural or man-made stone, wherein the composition comprises (i) a fluorinated compound, (ii) a potassium or lithium silicate and (iii) an acrylic polymer, dispersed in water;
wherein the fluorinated compound corresponds to at least one compound of the following formulas:
[(A) m L] n R

wherein:
m is a value of 1 to 4;
n is a value of 1 to 3;
L represents a linking group;
R is an aliphatic group; and
A is a fluorinated residue of the formula:

wherein:
a has a value of 1 to 100;
b has a value of 0 to 100;
the sum of a and b being at least 2;
R 1 and R 2 each independently represent H or an alkyl group of 1 to 4 carbon atoms;
Q and Q′ each independently represent a covalent bond or a non-fluorinated organic linking group;
Rf represents a partially or fully fluoroaliphatic group having 3 to 12 carbon atoms;
Rh represents a non-fluorinated group; and
X 1 is H or the residue of a free radical initiator.

15. The method according to claim 14 wherein the composition comprises (i) the fluorinated compound in an amount of 10 to 70% by weight of the total weight of solids, (ii) the potassium or lithium silicate in an amount of 10 to 80% by weight of the total weight of solids and (iii) the acrylic polymer in an amount of 10 to 80% by weight of the total weight of solids.

16. The method according to claim 14 wherein:
m is a value of 1 to 4;
n is a value of 1 to 3;
L is selected from the group consisting of a straight chain, branched chain, or cyclic alkylene, arylene, aralkylene, oxy, oxo, hydroxy, thio, sulfonyl, sulfoxy, amino, imino, sulfonamido, carboxamido, carbonyloxy, urethanylene, ureylene, and combinations thereof;
R is a branched aliphatic group having 12 to 75 carbon atoms; and
A is a fluorinated residue of the formula:

Assignees

• 3M Innovative Properties Co

Inventors

• Coppens Dirk M
• Doelen Leonardus A M

Classifications

• C09D133/08 Primary

  Homopolymers or copolymers of acrylic acid esters · CPC title

• C09D5/1637

  Macromolecular compounds · CPC title

• C09D5/1668

  Vinyl-type polymers · CPC title

• C09D133/00

  Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers · CPC title

• C04B41/009 Primary

  characterised by the material treated · CPC title