# US 6,720,033 B1 · Method for coating uncured tires > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 6,720,033 B1 - Document ID: US6720033B1 - Status: Granted - Kind: B1 - Application number: 10/299,448 - Filed: 2002-11-19 - Granted: 2004-04-13 - Earliest claimed: 2002-11-19 - Assignees: The Goodyear Tire & Rubber Company - Inventors: Paul Harry Sandstrom; Bill Bud Gross; Douglas Andrew Till - Web page: https://patentgrep.com/patent/US6720033B1 ## CPC - B29D 30/0662: {Accessories, details or auxiliary operations} - B05D 3/0254: {After-treatment} - B05D 7/02: to macromolecular substances, e.g. rubber (treatment or coating of shaped articles made of macromolecular substances C08J7/00) - B29C 37/0025: {Applying surface layers, e.g. coatings, decorative layers, printed layers, to articles during shaping, e.g. in-mould printing (moulding on preformed layers as inserts B29C70/68; applying fluent material to surfaces in general B05)} - B29C 37/0067: {Using separating agents during or after moulding; Applying separating agents on preforms or articles, e.g. to prevent sticking to each other (separating agents B29C33/60)} - B29D: PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE (making granules B29B9/00; making preforms B29B11/00) - B05D: PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL (conveying articles or workpieces through baths of liquid B65G, e.g. B65G49/02) - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) ## Abstract A method of coating a tire, comprising the steps of applying to an outer surface of a green tire: a precure paint essentially free of curatives, the precure paint comprising 100 parts by weight of elastomer, and from about 2000 to about 4000 parts by weight of an organic solvent. ## Claims ### Claim 1 A method of coating a tire, comprising the steps of: applying to an outer surface of a green tire: a precure paint essentially free of curatives; said procure paint comprising: 100 parts by weight of elastomer; and from about 2000 to about 4000 parts by weight of an organic solvent; and autogeneously curing said applied precure paint with said green tire. ### Claim 2 (depends on 1) The method of claim 1, wherein said elastomer is at least one member selected from the group consisting of natural rubber, synthetic polyisoprene rubber, styrene-butadiene rubber, and ethylene propylene diene (EPDM) rubber. ### Claim 3 (depends on 1) The method of claim 1, wherein said elastomer is at least one member selected from the group consisting of natural rubber and synthetic polyisoprene rubber. ### Claim 4 (depends on 1) The method of claim 1, wherein said elastomer is natural rubber. ### Claim 5 (depends on 1) The method of claim 1, wherein said elastomer is synthetic polyisoprene rubber. ### Claim 6 (depends on 1) The method of claim 1, wherein said organic solvent comprises a mixture of linear and cyclic C5-C8 paraffins. ### Claim 7 (depends on 1) The method of claim 1, wherein said precure paint further comprises from about 200 to about 500 parts by weight of a coarse filler. ### Claim 8 (depends on 1) The method of claim 1, wherein said precure paint further comprises from about 200 to about 500 parts by weight of at least one coarse filler selected from the group consisting of carbon blacks and talcs. ### Claim 9 (depends on 1) The method of claim 1, wherein said precure paint further comprises from about 50 to about 150 parts by weight of talc, and from about 150 to about 350 parts by weight of carbon black. ### Claim 10 (depends on 1) The method of claim 1, wherein said precure paint is essentially free of curatives selected from group consisting of sulfur, sulfur donors, and accelerators. ### Claim 11 (depends on 1) The method of claim 1, wherein said outer surface is at least one surface selected from sidewall surface and tread surface. ### Claim 12 (depends on 1) The method of claim 1, wherein said outer surface is a sidewall surface. ### Claim 13 (depends on 1) The method of claim 1, wherein said precure paint comprises less than 0.1 parts by weight of sulfur. ### Claim 14 (depends on 1) A tire coated using the method of claim 1. ### Claim 15 A method of coating a tire, comprising the steps of: applying to an outer surface of a green tire: a precure paint essentially free of sulfur and cure accelerators; said precure paint comprising: 100 parts by weight of an at least one elastomer selected from natural rubber and synthetic polyisoprene rubber; from about 50 to about 150 parts by weight of talc; from about 150 to about 350 parts by weight of carbon black; and from about 2000 to about 4000 parts by weight of an organic solvent; and autogeneously curing said precure paint with said green tire. ### Claim 16 (depends on 15) The method of claim 15, wherein said precure paint comprises less than 0.1 parts by weight of sulfur. ### Claim 17 (depends on 15) The method of claim 15, wherein said outer surface is at least one surface selected from sidewall surface and tread surface. ### Claim 18 (depends on 15) The method of claim 15, wherein said outer surface is a sidewall surface. ### Claim 19 (depends on 15) A tire coated using the method of claim 15.