Patent US2581920A successfully refreshed from Google Patents.
US2581920A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rubber to metal adhesive comprising dichlorobutadiene resin and a chlorinated elastomer and use thereof
Assignee: Bridgestone Firestone Inc
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Filing: 1947-03-21
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Granted: 1952-01-08
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Expires: 1967-03-21
Abstract
No abstract record available.
Inventors
- 👤 Leroy B Kuhn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:48
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/12; C08J5/124; C09; C09J; C09J115/00; C09J115/02; C08J2321/00; C08L; C08L2666/00; C08L2666/02; C08L2666/04; C08L2666/08; Y; Y10; Y10S; Y10S138/00; Y10S138/01; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31645; Y10T428/31649; Y10T428/31678; Y10T428/31692; Y10T428/31696; Y10T428/31699; Y10T428/31826; Y10T428/31833; Y10T428/31837; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31906; Y10T428/31909; Y10T428/31913; Y10T428/31917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
AN ADHERED STRUCTURE COMPRISING A METALLIC SUBSTRATE SELECTED FROM THE CLASS OF MATERIALS CONSISTING OF CAST IRON, WROUGHT IRON, INGOT IRON, STEEL, STAINLESS STEEL, ALUMINUM, DURALUMIN, MAGNESIUM, COOPER, LEAD, MONEL METAL, NICKEL, ZINC, GALVANIZED METALS, BRASS AND BRONZE, AN ELASTOMERIC SUPERSTRATE SELECTED FROM THE CLASS OF ELASTOMERIC MATERIALS CONSISTING OF NATURAL RUBBER, BUTADIENE-STYRENE COPOLYMERS, BUTADIENE-ACRYLONITRILE COPOLYMERS, POLYCHLOROPRENE, LACTOPRENE, POLYISOPRENE, BUTYL RUBBER AND POLYBUTADIENE, AND AN INTERPOSED ADHESIVE LAYER COMPRISING A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF RESINOUS HOMOPOLYMERS OF 2,3-DICHLOROBUTADIENE1,3, AND RESINOUS COPOLYMERS THEREOF WITH UNSATURATED COMPOUNDS COPOLYMERIZABLE THEREWITH AND CONTAINING AT LEAST 60% OF 2,3-DICHLOROBUTADIENE-1,3, COPOLYMERIZED THEREIN, AND A BODYING RESIN SELECTED FROM THE GROUP CONSISTING OF (A) CHLORINATED (1) POLYCHLOROPRENE, (2) POLYVINYL CHLORIDE AND (3) POLYVINYLIDENE CHLORIDE AND (B) CHLORINATED, HYDROCHLORINATED AND CHLORINATEDHYDROCHLORINATED (1) RUBBER, (2) BALATA, (3) GUTTA PERCHA, (4) CHILTE GUM, (5) POLYBUTADIENE, (6) SYNTHETIC POLYISOPRENE AND (7) BUTADIENE-STYRENE COPOLYMERS.
Claim 2
Dependent Claim
115 words
A FLOWABLE ADHESIVE COMPOSITION COMPRISING AN ORGANIC SOLVENT, A BROKEN-DOWN GEL OF A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF RESINOUS HOMOPOLYMERS OF 2,3-DICHLOROBUTADINE1,3 AND COPOLYMERS THEREOF WITH OTHER UNSATURATED COMPOUNDS COPOLYMERIZABLE THEREWITH AND CONTAINING AT LEAST 60% OF 2,3-DICHLOROBUTADIENE-1,3 COPOLYMERIZED THEREIN, AND A BODYING RESIN SELECTED FROM THE GROUP CONSISTING OF (A) CHLORINATED (1) POLYCHLOROPRENE (2) POLYVINYL CHLORIDE AND (3) POLYVINYLIDENE CHLORIDE AND (B) CHLORINATED, HYDROCHLORINATED AND CHLORINATED HYDROCHLORINATED (1) RUBBER, (2) BALATA, (3) GUTTA PERCHA, (4) CHILTE GUM, (5) POLYBUTADIENE (6) SYNTHETIC POLYISOPRENE AND (7) BUTADIENESTYRENE COPOLYMERS, SAID BROKEN-DOWN GEL HAVING BEEN FORMED BY HEATING THE COMPOSITION TO A TEMPERATURE ABOVE 60* C. TO DISSOLVE THE MASS, AND THEN COOLING WITH VIGOROUS AGITATION.
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) | 1955-01-07 | 1955-07-09 | 1956-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-07 | 1959-07-09 | 1960-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-07 | 1963-07-09 | 1964-01-08 | $7700.00 | Window Closed / Lapsed |