US2711986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for bonding rubber to chlorosulfonated polymers
Assignee: EIDP Inc
•
Filing: 1952-12-02
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Granted: 1955-06-28
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Expires: 1972-12-02
Abstract
No abstract record available.
Inventors
- 👤 Daniel E Strain
- 👤 Thomas H Crim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:46
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/12; C08J5/124; C08J5/125; B; B29; B29C; B29C65/00; B29C65/48; B29C65/4805; B29C65/483; B29C65/4895; B29C66/00; B29C66/70; B29C66/71; B29C66/73; B29C66/737; B29C66/7375; B29C66/73755; B29C66/739; B29C66/7392; B29C66/7394; B29C66/90; B29C66/91; B29C66/914; B29C66/9141; B29C66/919; B29C35/00; B29C35/02; B29C66/92; B29C66/929; B29C66/94; B29C66/949; B29K; B29K2007/00; B29K2105/00; B29K2105/24; B29K2105/246; C08J2307/00; C08J2323/00; C08J2323/26; C08J2323/32; C08J2323/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A PROCESS FOR BONDING CHLOROSULFONATED POLYETHYLENE RUBBERR TO CURED NATURAL RUBBER WHICH COMPRISES APPLYING TO THE SURFACE OF UNCURED CHLOROSULFONATED POLYETHYLENE RUNNER, COMPOUNDED WITH CURING AIDS COMPRISING LITHARGE AND ROSIN, AND TO THE SURFACE OF CURED NATURAL RUBBER, A CEMENT IN WHICH UNCURED CHLOROSULFONATED POLYETHYLENE RUBBER IS DISSOLVED IN AN INERT ORGANIC SOLVENT, SAID CEMENT HAVING ADMIXED THEREIN CURING AIDS COMPRISING LITHARGE AND ROSIN, MAINTAINING A CONTACT BETWEEN SAID SURFACES AT A TEMPERATURE OF 100* TO 160* C. FOR A PERIOD OF 10 TO 60 MINUTES UNDER A PRESSURE OF 15 TO 500 POUNDS PER SQUARE INCH UNTIL A BOND HAVING A TENSILE STRENGTH IN EXCESS OF 1000 POUNDS PER SQUARE INCH IS PRODUCED BETWEEN THE SAID CURED NATURAL RUBBER AND THE RESULTING CURED CHLOROSULFONATED POLYETHYLENE RUBBER.
Claim 2
Dependent Claim
127 words
A PROCESS FOR BONDING CHLOROSULFONATED POLYETHYLENE RUBBERR TO CURED NATURAL RUBBER WHICH COMPRISES APPLYING TO THE SURFACE OF UNCURED CHLOROSULFONATED POLYETHYLENE RUNNER, COMPOUNDED WITH CURING AIDS COMPRISING LITHARGE AND ROSIN, AND TO THE SURFACE OF CURED NATURAL RUBBER, A CEMENT IN WHICH UNCURED CHLOROSULFONATED POLYETHYLENE RUBBER IS DISSOLVED IN AN INERT ORGANIC SOLVENT, SAID CEMENT HAVING ADMIXED THEREIN CURING AIDS COMPRISING LITHARGE AND ROSIN, MAINTAINING A CONTACT BETWEEN SAID SURFACES AT A TEMPERATURE OF 100* TO 160* C. FOR A PERIOD OF 10 TO 60 MINUTES UNDER A PRESSURE OF 15 TO 500 POUNDS PER SQUARE INCH UNTIL A BOND HAVING A TENSILE STRENGTH IN EXCESS OF 1000 POUNDS PER SQUARE INCH IS PRODUCED BETWEEN THE SAID CURED NATURAL RUBBER AND THE RESULTING CURED CHLOROSULFONATED POLYETHYLENE RUBBER.
References Cited (Backward Citations)
US2630398A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-06-27 | 1958-12-27 | 1959-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-27 | 1962-12-27 | 1963-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-27 | 1966-12-27 | 1967-06-28 | $7700.00 | Window Closed / Lapsed |