US3916969A
Expired / Lapsed
US
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Method of building a radial tire
Assignee: Goodyear Tire and Rubber Co
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Filing: 1973-10-26
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Granted: 1975-11-04
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Expires: 1993-10-26
Abstract
Abstract A flat-band method of building a radial tire wherein at least one carcass ply of rubberized tire cords are wrapped around a cylindrical tire building drum. The belt structure is placed annularly around the carcass ply and includes at least one layer of rubberized tire cords. A layer or film consisting essentially of a block polymer is interposed between the belt structure and carcass ply and acts as a lubricant between the two components to allow undistorted, reorientation of the reinforcement cords of the belt structure during the molding and vulcanization of the tire. This eliminates the need for toroidally shaping the tire to receive the belt structure.
Inventors
- 👤 Melvin Auerbach
- 👤 Robert M Pierson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:06
CPC Classifications
B; B60; B60C; B60C9/00; B60C9/18; B29; B29D; B29D30/00; B29D30/06; B29D30/08; B29D30/20; B29D30/22; B60C9/02; B60C9/14; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10495; Y10T152/10765; Y10T152/1081
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
177 words
A METHOD OF BUILDING A TIRE OF TWO ADJACENT LAYERS OF RUBBERIZED TIE CORDS WHEREIN DURING MOLDING OF THE TIRE IT IS IMPORTANT THAT THE CORD ANGLE OF THE CORDS OF AT LEAST ONE OF THE LAYERS CHANGE, CHARACTERIZED BY PLACING A THRID LAYER OF MATERIAL BETWEEN THE TWO LAYERS PRIOR TO MOLDING THE TIRE INTO A TOROIDAL CONFIGURATION FOR VULCANIZATION, THE MATERIAL COMPRISING A THERMOELASTIC BLOCK POLYMER FROM THE GROUP OF ABA AND ABC BLOCK POLYMERS IN WHICH A REPRESENTS A POLYMER DERIVED FROM MONOVINYL AROMATIC MONOMERS, C REPRESENTS A POLAR POLYMER DERIVED FROM VINYL PYRIDINE, VINYL QUINOLINE, ACRYLIC, VINYL NITRILE, VINYL FURAN AND VINYL CARBAZOLE MONOMERS, B REPRESENTS A RUBBERY POLYMER DERIVED FROM A CONJUGATED DIOLEFIN MONOMER, AND IN WHICH A REPRESENTS FROM 15 TO 60 PERCENT BY WEIGHT OF THE TOTAL ABA POLYMER, AND IN WHICH A PLUS C REPRESENTS 15 TO 60 PERCENT BY WEIGHT OF THE TOTAL ABC POLYMER, AND IN WHICH THE MOLECULAR WEIGHTS OF TH ABA AND ABC BLOCK POLYMERS ARE EACH IN THE RANGE OF FROM 50,000 TO 150,000.
Claim 2
Independent Claim
177 words
A METHOD OF BUILDING A TIRE OF TWO ADJACENT LAYERS OF RUBBERIZED TIE CORDS WHEREIN DURING MOLDING OF THE TIRE IT IS IMPORTANT THAT THE CORD ANGLE OF THE CORDS OF AT LEAST ONE OF THE LAYERS CHANGE, CHARACTERIZED BY PLACING A THRID LAYER OF MATERIAL BETWEEN THE TWO LAYERS PRIOR TO MOLDING THE TIRE INTO A TOROIDAL CONFIGURATION FOR VULCANIZATION, THE MATERIAL COMPRISING A THERMOELASTIC BLOCK POLYMER FROM THE GROUP OF ABA AND ABC BLOCK POLYMERS IN WHICH A REPRESENTS A POLYMER DERIVED FROM MONOVINYL AROMATIC MONOMERS, C REPRESENTS A POLAR POLYMER DERIVED FROM VINYL PYRIDINE, VINYL QUINOLINE, ACRYLIC, VINYL NITRILE, VINYL FURAN AND VINYL CARBAZOLE MONOMERS, B REPRESENTS A RUBBERY POLYMER DERIVED FROM A CONJUGATED DIOLEFIN MONOMER, AND IN WHICH A REPRESENTS FROM 15 TO 60 PERCENT BY WEIGHT OF THE TOTAL ABA POLYMER, AND IN WHICH A PLUS C REPRESENTS 15 TO 60 PERCENT BY WEIGHT OF THE TOTAL ABC POLYMER, AND IN WHICH THE MOLECULAR WEIGHTS OF TH ABA AND ABC BLOCK POLYMERS ARE EACH IN THE RANGE OF FROM 50,000 TO 150,000.
Claim 3
Dependent Claim
17 words
The method of claim 1, wherein the block polymer is of the group of ABA block polymers.
Claim 4
Dependent Claim
16 words
The method of claim 2, wherein the ABA block polymer is a styrene-butadiene-styrene (SBS) block polymer.
Claim 5
Dependent Claim
17 words
The method of claim 1, wherein the block polymer is of the group of ABC block polymers.
Claim 6
Dependent Claim
16 words
The method of claim 4, wherein the ABC block polymer is a styrene-butadiene-vinylpyridine (SBVP)) block polymer.
Claim 7
Dependent Claim
11 words
The method of claim 1, wherein the material includes carbon black.
Claim 8
Independent Claim
258 words
A method of building a radial tire, comprising: a. wrapping at least one carcass ply of rubberized tire cords around a cylindrical tire building drum; b. securing a pair of annular beads to the carcass ply; c. placing a belt structure around the cylindrical carcass ply on the tire building drum, the belt structure including at least one layer of rubberized tire cords for annularly reinforcing the tire; d. interposing between the belt structure and carcass ply, a layer of material comprising a thermoelastic block polymer from the group of ABA and ABC block polymers in which A represents a polymer derived from monovinyl aromatic monomers, C represents a polar polymer derived from vinyl pyridine, vinyl quinoline, acrylic, vinyl nitrile, vinyl furan and vinyl carbazole monomers, B represents a rubbery polymer derived from a conjugated diolefin monomer, and in which A represents from 15 to 60 percent by weight of the total ABA polymer, and in which A plus C represents 15 to 60 percent by weight of the total ABC polymer, and in which the molecular weights of the ABA and ABC block polymers are each in the range of from 50,000 to 150,000; e. placing tread and sidewalls around the cylindrically shaped carcass ply, block polymer, and belt structure to form a generally cylindrically shaped unvulcanized tire; f. removing the cylindrically shaped unvulcanized tire from the tire building drum; g. molding the cylindrically shaped unvulcanized tire into a toroidal configuration; and h. heating the toroidally shaped unvulcanized tire to vulcanize the rubber material of the tire.
Claim 9
Independent Claim
258 words
A method of building a radial tire, comprising: a. wrapping at least one carcass ply of rubberized tire cords around a cylindrical tire building drum; b. securing a pair of annular beads to the carcass ply; c. placing a belt structure around the cylindrical carcass ply on the tire building drum, the belt structure including at least one layer of rubberized tire cords for annularly reinforcing the tire; d. interposing between the belt structure and carcass ply, a layer of material comprising a thermoelastic block polymer from the group of ABA and ABC block polymers in which A represents a polymer derived from monovinyl aromatic monomers, C represents a polar polymer derived from vinyl pyridine, vinyl quinoline, acrylic, vinyl nitrile, vinyl furan and vinyl carbazole monomers, B represents a rubbery polymer derived from a conjugated diolefin monomer, and in which A represents from 15 to 60 percent by weight of the total ABA polymer, and in which A plus C represents 15 to 60 percent by weight of the total ABC polymer, and in which the molecular weights of the ABA and ABC block polymers are each in the range of from 50,000 to 150,000; e. placing tread and sidewalls around the cylindrically shaped carcass ply, block polymer, and belt structure to form a generally cylindrically shaped unvulcanized tire; f. removing the cylindrically shaped unvulcanized tire from the tire building drum; g. molding the cylindrically shaped unvulcanized tire into a toroidal configuration; and h. heating the toroidally shaped unvulcanized tire to vulcanize the rubber material of the tire.
Claim 10
Dependent Claim
17 words
The method of claim 7, wherein the block polymer is of the group of ABA block polymers.
Claim 11
Dependent Claim
16 words
The method of claim 8, wherein the ABA block polymer is a styrene-butadiene-styrene (SBS) block polymer.
Claim 12
Dependent Claim
17 words
The method of claim 7, wherein the block polymer is of the group of ABC block polymers.
Claim 13
Dependent Claim
16 words
The method of claim 14, wherein the ABC block polymer is a styrene-butadiene-vinylpyridine (SBVP) block polymer.
Claim 14
Dependent Claim
11 words
The method of claim 7, wherein the material includes carbon black.
Claim 15
Dependent Claim
41 words
The method of claim 7, wherein the cord angle of the reinforcement cords of the belt structure is in the range of from 20*-30* measured in relation to the centerplane of the molded and vulcanized tire when the tire is uninflated.
Claim 16
Dependent Claim
209 words
A radial tire comprising: a. at least one carcass ply of rubberized reinforcement cords disposed at angles in the range of from 75* to 90* measured in relation to the centerplane of the tire when the tire is uninflated; b. an annular belt structure superimposed on the carcass ply for annularly reinforcing the tire, the belt structure including at least one layer of rubberized reinforcement cords which are disposed at correspondingly measured cord angles of not more than 30*; and c. a layer of material interposed between the carcass ply and belt structure, the material comprising a thermoelastic block polymer from the group of ABA and ABC block polymers in which A represents a polymer derived from monovinyl aromatic monomers, C represents a polar polymer derived from vinyl pyridine, vinyl quinoline, acrylic, vinyl nitrile, vinyl furan and vinyl carbazole monomers, B represents a rubbery polymer derived from a conjugated diolefin monomer, and in which A represents from 15 to 60 percent by weight of the total ABA polymer, and in which A plus C represents 15 to 60 percent by weight of the total ABC polymer, and in which the molecular weights of the ABA and ABC block polymers are each in the range of from 50,000 to 150,000.
Claim 17
Dependent Claim
209 words
A radial tire comprising: a. at least one carcass ply of rubberized reinforcement cords disposed at angles in the range of from 75* to 90* measured in relation to the centerplane of the tire when the tire is uninflated; b. an annular belt structure superimposed on the carcass ply for annularly reinforcing the tire, the belt structure including at least one layer of rubberized reinforcement cords which are disposed at correspondingly measured cord angles of not more than 30*; and c. a layer of material interposed between the carcass ply and belt structure, the material comprising a thermoelastic block polymer from the group of ABA and ABC block polymers in which A represents a polymer derived from monovinyl aromatic monomers, C represents a polar polymer derived from vinyl pyridine, vinyl quinoline, acrylic, vinyl nitrile, vinyl furan and vinyl carbazole monomers, B represents a rubbery polymer derived from a conjugated diolefin monomer, and in which A represents from 15 to 60 percent by weight of the total ABA polymer, and in which A plus C represents 15 to 60 percent by weight of the total ABC polymer, and in which the molecular weights of the ABA and ABC block polymers are each in the range of from 50,000 to 150,000.
Claim 18
Dependent Claim
18 words
The radial tire of claim 14, wherein the block polymer is of the group of ABA block polymers.
Claim 19
Dependent Claim
17 words
The radial tire of claim 15, wherein the ABA block polymer is a styrene-butadiene-styrene (SBS) block polymer.
Claim 20
Dependent Claim
18 words
The radial tire of claim 14, wherein the block polymer is of the group of ABC block polymers.
Claim 21
Dependent Claim
17 words
The radial tire of claim 17, wherein the ABC block polymer is a styrene-butadiene-vinylpyridine (SBVP) block polymer.
Claim 22
Dependent Claim
12 words
The radial tire of claim 14, wherein the material includes carbon black.
Claim 23
Independent Claim
187 words
A method of building a radial tire comprising: a. forming a cylindrically shaped carcass comprised of uncured elastomeric material, the carcass including a belt structure spaced from at least one carcass ply; b. interposing between the belt structure and the at least one carcass ply, a layer of material comprising a thermoelastic block polymer from the group of ABA and ABC block polymers in which A represents polymer plymer derived from monovinyl aromatic monomers, C represents a polar polymer derived from vinyl pyridine, vinyl quinoline, acrylic, vinyl nitrile, vinyl furan and vinyl carbazole monomers, B represents a rubbery polymer derived from a conjugated diolefin monomer, and in which A represents from 15 to 60 percent by weight of the total ABA polymer, and in which A plus C represents 15 to 60 percent by weight of the total ABC polymer, and in which the molecular weights of the ABA and ABC block polymers are each in the range of from 50,000 to 150,000; c. toroidally shaping the uncured carcass incluDing the block polymer material; and d. curing the elastomeric material to form a toroidally shaped radial tire.
Claim 24
Independent Claim
187 words
A method of building a radial tire comprising: a. forming a cylindrically shaped carcass comprised of uncured elastomeric material, the carcass including a belt structure spaced from at least one carcass ply; b. interposing between the belt structure and the at least one carcass ply, a layer of material comprising a thermoelastic block polymer from the group of ABA and ABC block polymers in which A represents polymer plymer derived from monovinyl aromatic monomers, C represents a polar polymer derived from vinyl pyridine, vinyl quinoline, acrylic, vinyl nitrile, vinyl furan and vinyl carbazole monomers, B represents a rubbery polymer derived from a conjugated diolefin monomer, and in which A represents from 15 to 60 percent by weight of the total ABA polymer, and in which A plus C represents 15 to 60 percent by weight of the total ABC polymer, and in which the molecular weights of the ABA and ABC block polymers are each in the range of from 50,000 to 150,000; c. toroidally shaping the uncured carcass incluDing the block polymer material; and d. curing the elastomeric material to form a toroidally shaped radial tire.
Claim 25
Dependent Claim
37 words
The method of claim 20, wherein the reinforcement cords of the belt structure and the at least one carcass ply are disposed at angles in the ranges of from 20*-30* and 75*-90* respectively, measured from the centerplane.
Claim 26
Dependent Claim
16 words
The method of claim 20, wherein the ABA block polymer is a styrene-butadiene-styrene (SBS) block polymer.
Claim 27
Dependent Claim
16 words
The method of claim 20, wherein the ABC block polymer is a styrene-butadiene-vinylpyridine (SBVP) block polymer.
Claim 28
Dependent Claim
12 words
The method of claim 20, wherein the block polymer includes carbon black.
References Cited (Backward Citations)
US3525654A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-03 | 1979-05-05 | 1979-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-03 | 1983-05-05 | 1983-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-03 | 1987-05-05 | 1987-11-04 | $7700.00 | Window Closed / Lapsed |