Flooring substrate having a coating of a curable composition

• US 7,722,955 B2
• Filed: 04/13/2006
• Issued: 05/25/2010
• Est. Priority Date: 04/13/2006
• Status: Expired due to Fees

• Current Assignee: 3M Innovative Properties Company (3M Company)
• Original Assignee: 3M Innovative Properties Company (3M Company)
• Inventors: Dams, Rudolf J., Klun, Thomas P., Jing, Naiyong, Qiu, Zai-Ming, Audenaert, Frans A.
• Primary Examiner(s): Tran; Thao T.
• Application Number:
  US11/279,657
• Publication Number:
  US 20070243389A1
• Time in Patent Office: 1,503 Days
• Field of Search: 428/422, 428/423.1, 528/44
• US Class Current: 428/423.1
• CPC Class Codes: C08F 283/00 Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
• CPC Class Codes: C08F 283/006 on to polymers provided for in C08G18/00 C08F283/004 takes precedence
• CPC Class Codes: C08F 283/06 on to polyethers, polyoxymethylenes or polyacetals C08F283/004 takes precedence
• CPC Class Codes: C08G 18/2885 containing halogen atoms
• CPC Class Codes: C08G 18/3812 having fluorine atoms
• CPC Class Codes: C08G 18/673 containing two or more acrylate or alkylacrylate ester groups
• CPC Class Codes: C08G 18/7831 containing biuret groups
• CPC Class Codes: C08G 18/792 formed by oligomerisation of aliphatic and/or cycloaliphatic isocyanates or isothiocyanates
• CPC Class Codes: C08L 2312/00 Crosslinking
• CPC Class Codes: C09D 133/14 of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
• CPC Class Codes: C09D 175/16 having terminal carbon-to-carbon unsaturated bonds
• CPC Class Codes: Y10T 428/31544 Addition polymer is perhalogenated
• CPC Class Codes: Y10T 428/31551 Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]

Abstract

A flooring substrate comprising a coating of a curable composition that comprises (a) a reaction product of (i) a polyisocyanate, (ii) one or more perfluoropolyether compounds having at least one hydroxyl group and (iii) an organic compound having one or more free radical polymerizable groups and at least one hydroxyl group; and (b) a compound capable of free radical copolymerization with the reaction product and comprising at least two free radical polymerizable groups.

Claims

1. Flooring substrate comprising a coating of a curable composition, said curable composition comprising:

(i) a reaction product of (i) a polyisocyanate, (ii) one or more perfluoropolyether compounds having at least one hydroxyl group and (iii) an organic compound having one or more free radical polymerizable groups and at least one hydroxyl group;

(ii) a compound capable of free radical copolymerization with said reaction product and comprising at least two free radical polymerizable groups.

2. Flooring substrate according to claim 1 wherein said free radical polymerizable groups in said reaction product and said free radical polymerizable groups of said compound capable of free radical copolymerization with said reaction product are selected from the group consisting of acrylic and methacrylic groups.

3. Flooring substrate according to any of the previous claims wherein said polyisocyanate comprises a tri-isocyanate.

4. Flooring substrate according to any of the previous claims wherein said one or more perfluoropolyether compounds have only one hydroxyl group.

5. Flooring substrate according to any of the previous claims wherein at least one of said perfluoropolyether compounds corresponds to the general formula:

PF-Q-(OH)_b

wherein PF represents a perfluoropolyether group, b is 1 or 2 and Q represents a linking group.

6. Flooring substrate according to claim 1 wherein said perfluoropolyether group corresponds to the formula:

F(CF(CF₃)CF₂O)_aCF(CF₃)—

wherein a is at least 3.

7. Flooring substrate according to claim 1 wherein the coating is free of or substantially free of organic solvents.

8. Flooring substrate comprising a coating comprising a cured composition obtained by curing a curable composition as defined in any of the previous claims.

9. Flooring substrate according to any of the claims 1 to 8 wherein said flooring substrate is a non-porous flooring substrate.

10. Flooring substrate according to claim 9 wherein said non-porous flooring substrate is selected from the group consisting of ceramic substrates, wood, laminate, vinyl, rubber, marble and linoleum.

11. Flooring substrate according to claim 1 wherein said compound capable of free radical copolymerization with said reaction product is not covalently attached to said reaction product.

12. Method comprising (i) providing a flooring substrate as defined in any of claims 1 to 7 and (ii) causing said flooring substrate to cure.

13. Method according to claim 12 wherein said flooring substrate is caused to cure in the presence of air.