Peelable polymeric coating composition

• US 6,822,012 B1
• Filed: 10/20/2000
• Issued: 11/23/2004
• Est. Priority Date: 03/23/2000
• Status: Expired due to Fees

• Current Assignee: Ashland Licensing and Intellectual Property Llc
• Original Assignee: Ashland Incorporated (Bank of Montreal)
• Inventors: Baumgart, Richard J., Lockwood, Frances E., Zhang, Zhiqiang, Dituro, Michael A., Dotson, Daniel J.
• Primary Examiner(s): COONEY, JOHN M
• Application Number:
  US09/693,366
• Time in Patent Office: 1,495 Days
• Field of Search: 521/142, 521/146, 521/147, 521/149, 521/155, 521/170, 528/85, 524/591, 524/839, 524/840
• US Class Current: 521/170
• CPC Class Codes: C09D 5/021 Aerosols aerosol compositions C09K3/30
• CPC Class Codes: C09D 5/20 for coatings strippable as coherent films, e.g. temporary coatings strippable as coherent films

Abstract

This invention relates generally to water resistant peelable protective and decorative clear or pigmented coating compositions and, more specifically, to aqueous and solvent based, polymeric coating compositions which form a protective and/or decorative coating and is removably adheres to a variety of substrates, including automotive paints, metals, glass, vinyl, plastics, concrete, natural and synthetic elastomers, and ceramics. The coatings can be either a flat film on the substrate, or a three-dimensional expandable foamy coating, and can be readily peeled off from the substrate as a whole piece. The coatings may be formulated for temporary or long-term protection depending upon the application. The peelable coatings can be applied as a paint, paste, film, or expandable foam cord whereby the expansion of the foam can be controlled by the formulation and applicator.

Claims

1. A flat peelable coating composition, consisting essentially of a blend of:

an effective amount of an aqueous polyurethane dispersion resin having an average molecular weight of between 50,000 to 5,000,000 containing at least 40 percent by weight solids contents;

solvent selected from the group consisting of water, ethyl alcohol, methyl alcohol, isopropyl alcohol, and butyl alcohol, in an amount ranging from about 5 to 30 percent by weight of the total weight percent of the composition;

a release agent in an amount of from between 0.1 and 10 percent of the total weight percent of the composition, said release agent being selected from the group consisting of soy lecithin, organosilicone fluids, nonylphenoxypoly-(ethyleneoxy)ethanol, oleic acid polyethylene glycol monostearate, petrolatum, sodium alkyl benzene, sulfonates, siloxanes, polyglycols, silicone surfactants, polyvinyl alcohol resins, paraffin and polymeric waxes, and synthetic waxes including low molecular weight polyethylene waxes; and

wherein said aqueous polyurethane dispersion resin particles are dispersed in said solvent and applied to a single substrate in a single layer which upon curing provides a nonsoluble water resistant coating having a smooth surface.

2. The peelable coating of claim 1 including a dye or pigment in an effective amount of from 0.01 to 10.0 percent by weight.

3. The peelable coating of claim 1 including a thickening agent in an effective amount of from 0.01 to 5.0 percent by weight.

4. The peelable coating of claim 1 including an antifoam in an effective amount of from 0.01 to 1.0 percent by weight, selected from the group consisting of alkanolamides, silicone glycols, alkyl benzene sulfonates, alcohol ethoxylated, phosphate esters, oleates, betaines, alkylphenol ether sulfates, alkylaryl sulfonates, fatty acids, soy lecithin, anionic, cationic, amphoteric, or nonionic surfactants, and combinations thereof.

13. The peelable composition of claim 1, wherein said release agent is soy lecithin.

14. The peelable composition of claim 1, wherein said an effective amount of a said release agent is up to 5.0 percent by weight.

18. The peelable composition of claim 1, wherein said release agent is soy lecithin.

5. A peelable coating composition, consisting essentially of a blend of:

an effective amount of an aqueous polyurethane dispersion resin having an average molecular weight of between 50,000 to 5,000,000 containing at least 40 percent by weight solids contents;

at least one release agent in an amount of from between 0.1 and 5.0 percent of the total weight percent of the composition, said release agent being selected from the group consisting of soy lecithin, organosilicone fluids, nonylphenoxypoly-(ethyleneoxy)ethanol, oleic acid polyethylene glycol monostearate, petrolatum, sodium alkyl benzene, sulfonates, siloxanes, polyglycols, silicone surfactants, polyvinyl alcohol resins, paraffin and polymeric waxes, and synthetic waxes including low molecular weight polyethylene waxes, and combinations thereof; and

a surfactant in an effective amount of from 0.01 to 10.0 percent by weight, selected from the group consisting of alkanolamides, silicone glycols, alkyl benzene sulfonates, alcohol ethoxylated, phosphate esters, oleates, betaines, alkylphenol ether sulfates, alkylaryl sulfonates, fatty acids, soy lecithin, anionic, cationic, amphoteric, or nonionic surfactants, and combinations thereof;

wherein said aqueous polyurethane dispersion resin particles are dispersed and applied to a substrate in a single layer which upon curing provides a nonsoluble water resistant film having a smooth surface.

6. The peelable coating of claim 5 including a dye or pigment in an effective amount of from 0.01 to 10.0 percent by weight.

7. The peelable coating of claim 5 including a thickening agent in an effective amount of from 0.01 to 5.0 percent by weight.

8. The peelable coating of claim 5 including an anti-skinning agent in an effective amount of from 0.01 to 1.0 percent by weight.

9. The peelable coating of claim 5 including a solvent in an effective amount of from 0.01 to 5.0 percent by weight.

17. The peelable composition of claim 5, wherein said effective amount of a release agent is from 0.1 to 3.0 percent by weight.

10. A peelable coating composition, consisting essentially of a blend of:

an effective amount of an aqueous polyurethane dispersion resin having an average molecular weight of between 50,000 to 5,000,000 containing at least 40 percent by weight solids contents;

an effective amount of a release agent in an amount of from between 0.1 and 5 percent of the total weight percent of the composition, said release agent being selected from the group consisting of soy lecithin, organosilicone fluids, nonylphenoxypoly-(ethyleneoxy)ethanol, oleic acid polyethylene glycol monostearate, petrolatum, sodium alkyl benzene, sulfonates, siloxanes, polyglycols, silicone surfactants, polyvinyl alcohol resins, paraffin and polymeric waxes, and synthetic waxes including low molecular weight polyethylene waxes, and combinations thereof;

an effective amount of a plasticizer in an amount of up to 20 percent by weight selected from the group consisting essentially of a polyvinyl alcohol, a cellulose, a polyglycol, a phthalate, an adipate, a sebacate ester, a glyceryl tri(acetoxystearate), an epoxidized soybean oil, an epoxidized linseed oil, an n-butyl benzene sulfonamide, an aliphatic polyurethane, a polyester glutarate, a triethylene glycol, a caprate/caprylate, a long chain alkyl ether, a dialkyl diester, a glutarate, an epoxy plasticizer, a polyester based on adipic acid, a hydrogenated dimer acid, a distilled dimer acid, a polymerized fatty acid trimer, an ethyl ester of hydrolyzed collagen, an isostearic acid, a sorbian oleate, a cocoyl hydrolyzed keratin, a lanolin oil, a dialkyl adipate, an alkylaryl phosphate, an alkyl diaryl phosphate, a modified triaryl phosphate, a triaryl phosphate, a butyl benzyl phthalate, an octyl benzyl phthalate, an alkyl benzyl phthalate, a dibutoxy ethoxy ethyl adipate, a 2-ethylhexyldiphenyl phosphate, a dibutoxy ethoxy ethyl formyl, a diisopropyl adipate, a diisopropyl sebacate, an isodecyl oleate, a neopentyl glycol dicaprate, a neopenty glycol diotanoate, an isohexyl neopentanoate, an ethoxylated lanolin, a polyoxyethylene cholesterol, a propoxylated (2 moles) lanolin alcohols, a propoxylated lanoline alcohol, an acetylated polyoxyethylene derivative of lanoline, a dimethylpolysiloxane, a glycerine, a polyethylene glycol, a dibutyl phthalate, a 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate, and a diisononyl phthalate in an amount of from 0.1 to 20 percent by weight of the total weight of the composition; and

wherein said aqueous polyurethane dispersion resin particles are dispersed and applied to a substrate in a single layer which upon curing provides a nonsoluble water resistant coating having a smooth surface.

11. The peelable composition of claim 10, wherein said effective amount of a release agent is from 0.1 to 5.0 percent by weight.

12. The peelable composition of claim 10, wherein said release agent is soy lecithin.

15. The peelable composition of claim 10 including an effective amount of a solvent selected from the group consisting of water, ethyl alcohol, methyl alcohol, isopropyl alcohol, butyl alcohol, and combinations thereof.

16. The peelable composition of claim 15 wherein said effective amount of said solvent is up to 10 percent by weight in addition to said water of said aqueous polyurethane dispersion.

19. The peelable composition of claim 10, including an effective amount of a surfactant.

20. The peelable composition of claim 19, wherein said surfactant is selected from the group consisting of alkanolamides, silicone glycols, alkyl benzene sulfonates, alcohol ethoxylated, phosphate esters, betaines, alkylphenol ether sulfates, alkylaryl sulfonates, fatty acids, soy lecithin, and combinations thereof.

21. The peelable composition of claim 19 wherein said effective amount of said surfactant is up to 10 percent by weight.

22. The peelable composition of claim 19, wherein said surfactant is a nonionic surfactant.

23. The peelable composition of claim 10 including an effective amount of a solvent.

24. The peelable composition of claim 23 wherein said effective amount of said solvent is up to 10 percent by weight in addition to the water contained in said aqueous polyurethane dispersion.

25. The peelable composition of claim 10 further comprises a polyglycol.

26. The peelable composition of claim 25 wherein said effective amount of a polyglycol is from between 0.1 and 20.0 percent by weight.

27. The peelable composition of claim 25 wherein said polyglycol is polypropylene glycol.

28. The peelable composition of claim 10 wherein said peelable coating is from 20 to 40 mils in thickness.

29. The peelable composition of claim 10 wherein said peelable coating is of up to 80 mils in thickness.