Patent US2619445A successfully refreshed from Google Patents.
US2619445A
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Rubber-to-metal adhesives and method of making same and use thereof
Assignee: Aerojet Rocketdyne Holdings Inc
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Filing: 1949-09-16
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Granted: 1952-11-25
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Expires: 1969-09-16
Abstract
No abstract record available.
Inventors
- 👤 Edward F Kalafus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:16
CPC Classifications
C; C09; C09J; C09J5/00; C09J5/02; B; B32; B32B; B32B15/00; B32B15/04; B32B15/06; B32B7/00; B32B7/04; B32B7/12; C08; C08C; C08C19/00; C08C19/30; C08L; C08L9/00; C08L9/06; C09J109/00; C09J109/06; B29; B29C; B29C35/00; B29C35/02; B29C65/00; B29C65/48; B29C65/4805; B29C65/481; B29C65/482; B29C65/483; B29C66/00; B29C66/40; B29C66/41; B29C66/45; B29C66/70; B29C66/71; B29C66/73; B29C66/737; B29C66/7375; B29C66/74; B29C66/742; B29K; B29K2021/00; B29K2305/00; C08K; C08K3/00; C08K3/32; C09J2301/00; C09J2301/50; C09J2301/504; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31696; Y10T428/31707; Y10T428/31826; Y10T428/31833
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
109 words
AN EXOTHERMIC REACTION PRODUCT OF AN ACIDIC MATERIAL AND A COPOLYMER COMPRISING 20 TO 25% OF AT LEAST ONE CONJUGATED DIOLEFINIC COMPOUND OF LESS THAN SEVEN ALIPHATIC CARBON ATOMS AND 80% TO 50% OF A HARDENING COMPONENT SELECTED FROM MONO-OLEFINIC COMPOUNDS COPOLYMERIZABLE WITH MONO-OLEFINIC COMPOUNDS COPOLYMERIZABLE WITH SAID COPOLYMER COMPRISING A MONO-OLEFINIC COMPOUND WHICH CONTAINS A RING NITROGEN ATOM IN A RING THEREOF AND WHICH IS COPOLYMERIZABLE WITH SAID CONJUGATED DIOLEFINIC COMPOUND, SAID ACIDIC MATERIAL HAVING A POLYVALENT INORGANIC ANIONIC COMPONENT WHICH WITH A HYDROGEN CATION FORMS AN ACID THAT IS A STRONGER ACID THAN ACETIC ACID SAID REACTION PRODUCT HAVING MATERIALLY INCREASED STIFFNESS OVER THAT OF SAID COPOLYMER.
Claim 2
Dependent Claim
109 words
AN EXOTHERMIC REACTION PRODUCT OF AN ACIDIC MATERIAL AND A COPOLYMER COMPRISING 20 TO 25% OF AT LEAST ONE CONJUGATED DIOLEFINIC COMPOUND OF LESS THAN SEVEN ALIPHATIC CARBON ATOMS AND 80% TO 50% OF A HARDENING COMPONENT SELECTED FROM MONO-OLEFINIC COMPOUNDS COPOLYMERIZABLE WITH MONO-OLEFINIC COMPOUNDS COPOLYMERIZABLE WITH SAID COPOLYMER COMPRISING A MONO-OLEFINIC COMPOUND WHICH CONTAINS A RING NITROGEN ATOM IN A RING THEREOF AND WHICH IS COPOLYMERIZABLE WITH SAID CONJUGATED DIOLEFINIC COMPOUND, SAID ACIDIC MATERIAL HAVING A POLYVALENT INORGANIC ANIONIC COMPONENT WHICH WITH A HYDROGEN CATION FORMS AN ACID THAT IS A STRONGER ACID THAN ACETIC ACID SAID REACTION PRODUCT HAVING MATERIALLY INCREASED STIFFNESS OVER THAT OF SAID COPOLYMER.
Claim 3
Dependent Claim
46 words
A COMPOSITE ARTICLE OF RUBBER AND METAL COMPRISING THE METAL PORTION HAVING IN CONTACT WITH THE SURFACE OF THE METAL A FILM OF THE REACTION PRODUCT ACCORDING TO CLAIM 1, AND A LAYER OF VULCANIZED RUBBER COMPOUND BONDED THROUGH SAID ADHESIVE LAYER TO SAID METAL PORTION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-25 | 1956-05-26 | 1956-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-25 | 1960-05-26 | 1960-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-25 | 1964-05-26 | 1964-11-25 | $7700.00 | Window Closed / Lapsed |