US3897583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesion of metal to rubber
Assignee: UG Licensing Services Inc
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Filing: 1973-11-08
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Granted: 1975-07-29
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Expires: 1993-11-08
Abstract
Abstract Adhesion of rubber to metal (e.g., brass plated wire tire cord) is improved by incorporating a cobalt salt (e.g., cobalt naphthenate) into a rubber stock containing an adhesive resin forming system, particularly a methylolated nitroalkane (methylene donor) and a resorcinol type methylene acceptor, prior to vulcanizing the rubber in contact with the metal.
Inventors
- 👤 Carlos Bellamy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:53
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/04; B32B15/06; C; C08; C08J; C08J5/00; C08J5/04; C08J5/10; B32B15/02; B32B25/00; B32B25/14; B32B38/00; B32B2038/0052; B32B2038/0076; C08J2309/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31696; Y10T428/31707; Y10T442/00; Y10T442/10; Y10T442/102; Y10T442/109; Y10T442/124
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
177 words
A METHOD OF ADHERING BRASS PLATED WIRE REINFORCEMENT TO RUBBER WHICH COMPRISES APPLYING A SOLID VULCANIZABLE RUBBER COMPOSITION, COMPRISING A CONJUGATED DIOLEFIN POLYMER RUBBER, SAID COMPOSITION CONTAINING, PER 100 PARTS BY WEIGHT OF SAID RUBBER, FORM 0.01 TO 0.2 PART BY WEIGHT OF COBALT IN THE FORM OF A COBALT SALT (I), AND (II) A RESIN-FORMING SYSTEM COMPRISING FROM 0.1 TO 5 PARTS BY WEIGHT OF (A) A METHYLENE DONOR WHICH IS A METHYLOATED NITROALKANE IN WHICH THE HYDROCARBON RADICAL HAS 1 TO 6 CARBON ATOMS AND FROM 0.1 TO 5 PARTS BY WEIGHT OF (B) A RESORCINOL-TYPE METHYLENE ACCEPTOR, TO THE WIRE REINFORCEMENT TO COAT THE SAME, AND HEATING THE ASSEMBLY TO VULCANIZE THE RUBBER AND TO FIRMLY ADHERE THE WIRE REINFORCEMENT TO THE VULCANIZED RUBBER COMPOSITION, THE SAID COBALT SALT (I) BEING A COBALT SALT OF AN ALIPHATIC OR ALICYCLIC CARBOXYLIC ACID HAVING FROM 6 TO 30 CARBON ATOMS, AND THE SAID METHYLENE ACCEPTOR (B) BEING A FUSIBLE PARTIALLY REACTED RESORCINOL-ALKYL ALDEHYDE RESIN IN WHICH THE ALKYL ALDEHYDE HAS FROM 1 TO 4 CARBON ATOMS.
Claim 2
Independent Claim
177 words
A METHOD OF ADHERING BRASS PLATED WIRE REINFORCEMENT TO RUBBER WHICH COMPRISES APPLYING A SOLID VULCANIZABLE RUBBER COMPOSITION, COMPRISING A CONJUGATED DIOLEFIN POLYMER RUBBER, SAID COMPOSITION CONTAINING, PER 100 PARTS BY WEIGHT OF SAID RUBBER, FORM 0.01 TO 0.2 PART BY WEIGHT OF COBALT IN THE FORM OF A COBALT SALT (I), AND (II) A RESIN-FORMING SYSTEM COMPRISING FROM 0.1 TO 5 PARTS BY WEIGHT OF (A) A METHYLENE DONOR WHICH IS A METHYLOATED NITROALKANE IN WHICH THE HYDROCARBON RADICAL HAS 1 TO 6 CARBON ATOMS AND FROM 0.1 TO 5 PARTS BY WEIGHT OF (B) A RESORCINOL-TYPE METHYLENE ACCEPTOR, TO THE WIRE REINFORCEMENT TO COAT THE SAME, AND HEATING THE ASSEMBLY TO VULCANIZE THE RUBBER AND TO FIRMLY ADHERE THE WIRE REINFORCEMENT TO THE VULCANIZED RUBBER COMPOSITION, THE SAID COBALT SALT (I) BEING A COBALT SALT OF AN ALIPHATIC OR ALICYCLIC CARBOXYLIC ACID HAVING FROM 6 TO 30 CARBON ATOMS, AND THE SAID METHYLENE ACCEPTOR (B) BEING A FUSIBLE PARTIALLY REACTED RESORCINOL-ALKYL ALDEHYDE RESIN IN WHICH THE ALKYL ALDEHYDE HAS FROM 1 TO 4 CARBON ATOMS.
Claim 3
Dependent Claim
38 words
A method as in claim 1 in which the said cobalt salt (I) is selected from the group consisting of cobalt octoate, cobalt stearate and cobalt naphthenate, (A) is 2-methylol-2-nitropropane and the alkyl aldehyde in (B) is acetaldehyde.
Claim 4
Dependent Claim
23 words
A method as in claim 2 in which the wire reinforcement is wire tire cord and the rubber composition is tire carcass stock.
Claim 5
Dependent Claim
14 words
A method as in claim 3 in which the cobalt salt is cobalt naphthenate.
Claim 6
Dependent Claim
132 words
A laminate of brass plated wire tire cord fabric and a vulcanized rubber tire carcass stock, said stock being a conjugated diolefin polymer rubber containing, per 100 parts by weight of rubber, (I) from 0.01 to 0.2 parts by weight of cobalt in the form of a cobalt salt of an organic acid selected from the group consisting of cobalt octoate, cobalt stearate and cobalt napthenate, and (II) a resinous reaction product of (A) from 0.1 to 5 parts by weight of a methylene donor which is a methylolated nitroalkane in which the hydrocarbon radical has 1 to 6 carbon atoms and (B) from 0.1 to 5 parts by weight of a resorcinol-type methylene acceptor which is a resorcinol-alkyl aldehyde condensate wherein the alkyl aldehyde has from 1 to 4 carbon atoms.
Claim 7
Dependent Claim
132 words
A laminate of brass plated wire tire cord fabric and a vulcanized rubber tire carcass stock, said stock being a conjugated diolefin polymer rubber containing, per 100 parts by weight of rubber, (I) from 0.01 to 0.2 parts by weight of cobalt in the form of a cobalt salt of an organic acid selected from the group consisting of cobalt octoate, cobalt stearate and cobalt napthenate, and (II) a resinous reaction product of (A) from 0.1 to 5 parts by weight of a methylene donor which is a methylolated nitroalkane in which the hydrocarbon radical has 1 to 6 carbon atoms and (B) from 0.1 to 5 parts by weight of a resorcinol-type methylene acceptor which is a resorcinol-alkyl aldehyde condensate wherein the alkyl aldehyde has from 1 to 4 carbon atoms.
Claim 8
Dependent Claim
14 words
A laminate as in claim 5 in which the cobalt salt is cobalt naphthenate.
Claim 9
Dependent Claim
16 words
A laminate as in claim 6 in which (A) is 2-methylol-2-nitropropane and (B) is resorcinol-acetaldehyde resin.
References Cited (Backward Citations)
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US3446874A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-28 | 1979-01-27 | 1979-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-28 | 1983-01-27 | 1983-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-28 | 1987-01-27 | 1987-07-29 | $7700.00 | Window Closed / Lapsed |