Patent US3307690A successfully refreshed from Google Patents.
US3307690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil resistant non-contaminating adhesive tapes
Assignee: 3M Co
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Filing: 1962-12-04
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Granted: 1967-03-07
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Expires: 1982-12-04
Abstract
No abstract record available.
Inventors
- 👤 Herbert M Bond
- 👤 Jun Tomita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:43
CPC Classifications
C; C09; C09J; C09J131/00; C09J131/02; C09J131/04; C09J133/00; C09J133/04; C09J133/06; C09J133/08; C09J7/00; C09J7/20; C09J7/22; C09J7/30; C09J7/35; C09J7/38; C09J7/381; C09J7/385; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/28; C08L67/00; C08L67/06; C09J2301/00; C09J2301/30; C09J2301/302; Y; Y10; Y10T; Y10T428/00; Y10T428/14; Y10T428/1462; Y10T428/249921; Y10T428/249924; Y10T428/24994; Y10T428/249942; Y10T428/27; Y10T428/273; Y10T428/28; Y10T428/2813; Y10T428/2817; Y10T428/2826; Y10T428/31504; Y10T428/31786; Y10T428/31794; Y10T428/31797; Y10T428/31855; Y10T428/3188; Y10T428/31884
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
AN OIL RESISTANT, NON-CONTAMINATING CONTACT ADHERENT ADHESIVE TAPE WOULD IN ROLL FORM AND HAVING A BACK SURFACE ONLY LIGHTLY ADHERENT TO AND READILY SEPARABLE FROM THE TAPE ADHESIVE UPON RAPID UNWIND OF THE TAPE FROM ROLL FORM, SAID TAPE COMPRISING A BACKING HAVING A THERMOSETTING ADHESIVE THEREON HAVING PRIOR TO THERMOSETTING A SHEAR STRENGTH VALUE OF AT LEAST ABOUT 2 MINUTES AND AN ADHESION VALUE OF AT LEAST ABOUT 20 OZS. PER INCH, SAID ADHESIVE CONSISTING ESSENTIALLY OF (1) 50 TO 100 PARTS BY WEIGHT OF A NORMALLY THERMOPLASTIC BASE POLYMER SELECTED FROM THE GROUP CONSISTING OF COPOLYMERS OF AKYL ACRYLATES WITH ONE ANOTHER AND WITH ACRYLIC ACID, AND ALKYL ACRYLATE-VINYL ACETATE COPOLYMERS, (2) FROM 2 TO ABOUT 50 PARTS OF AN ORGANIC POLYMERIC CROSS-LINKER FOR CROSS LINKING WITH (1), AND (3) FROM ABOUT 0.5 TO ABOUT 10 PARTS OF A HEAT-ACTIVATED CROSSLINKING CATALYST FOR CROSS-LINKING (1) WITH (2) UPON HEAT ACTIVATION TO THERMOSET SAID ADHESIVE.
Claim 2
Dependent Claim
156 words
AN OIL RESISTANT, NON-CONTAMINATING CONTACT ADHERENT ADHESIVE TAPE WOULD IN ROLL FORM AND HAVING A BACK SURFACE ONLY LIGHTLY ADHERENT TO AND READILY SEPARABLE FROM THE TAPE ADHESIVE UPON RAPID UNWIND OF THE TAPE FROM ROLL FORM, SAID TAPE COMPRISING A BACKING HAVING A THERMOSETTING ADHESIVE THEREON HAVING PRIOR TO THERMOSETTING A SHEAR STRENGTH VALUE OF AT LEAST ABOUT 2 MINUTES AND AN ADHESION VALUE OF AT LEAST ABOUT 20 OZS. PER INCH, SAID ADHESIVE CONSISTING ESSENTIALLY OF (1) 50 TO 100 PARTS BY WEIGHT OF A NORMALLY THERMOPLASTIC BASE POLYMER SELECTED FROM THE GROUP CONSISTING OF COPOLYMERS OF AKYL ACRYLATES WITH ONE ANOTHER AND WITH ACRYLIC ACID, AND ALKYL ACRYLATE-VINYL ACETATE COPOLYMERS, (2) FROM 2 TO ABOUT 50 PARTS OF AN ORGANIC POLYMERIC CROSS-LINKER FOR CROSS LINKING WITH (1), AND (3) FROM ABOUT 0.5 TO ABOUT 10 PARTS OF A HEAT-ACTIVATED CROSSLINKING CATALYST FOR CROSS-LINKING (1) WITH (2) UPON HEAT ACTIVATION TO THERMOSET SAID ADHESIVE.
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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) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |