US2646371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesive sheets
Assignee: Permacel Tape Corp
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Filing: 1949-04-29
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Granted: 1953-07-21
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Expires: 1969-04-29
Abstract
No abstract record available.
Inventors
- 👤 James A Mcgarry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:01
CPC Classifications
C; C09; C09J; C09J7/00; C09J7/20; C09J7/22; C09J7/30; C09J7/38; Y; Y10; Y10S; Y10S524/00; Y10S524/925; Y10T; Y10T428/00; Y10T428/28; Y10T428/2852; Y10T428/2857; Y10T428/2878; Y10T428/2883; Y10T428/2891
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
141 words
AN ADHESIVE SHEET COMPRISING A BACKING HAVING HYDROPHILIC CHARACTERISTICS AND A COATING OF A NORMALLY TACKY AND PRESSURE-SENSITIVE ADHESIVE MASS UNITED TO SAID BACKING; SAID ADHESIVE MASS INCLUDING A MAJOR PORTION OF AT LEAST ONE ELASTOMERIC BASE SELECTED FROM THE GROUP CONSISTING OF: NATURAL RUBBER; SYNTHETIC POLYISOPRENE; THE VULCANIZABLE ELASTOMERIC POLYMERS AND INTERPOLYMERS OF FROM ABOUT 40 TO ABOUT 90 PER CENT BUTADIENE AND FROM ABOUT 10 TO ABOUT 60 PER CENT STYRENE; POLYACRYLATE COPOLYMERS AND INTERPOLYMERS; AND THE LOWER VINYL ETHER POLYMERS; AND A MINOR PROPORTION, NOT MORE THAN FIVE PER CENT BY WEIGHT OF ONE OR MORE SPECIFIC MASS DEACTIVATORS HAVING THE PROPERTY OF REDUCING THE ADHESION OF SAID ADHESIVE MASS TO MATERIALS HAVING HYDROPHILLIC CHARACTERISTICS RELATIVELY MUCH MORE THAN THEY REDUCE THE ADHESION OF SAID ADHESION MASS TO MATERIALS HAVING HYDROPHOBIC CHARACTERISTICS, WHICH DEACTIVATORS ARE: 1 SURFACE ACTIVE;
Claim 2
Dependent Claim
141 words
AN ADHESIVE SHEET COMPRISING A BACKING HAVING HYDROPHILIC CHARACTERISTICS AND A COATING OF A NORMALLY TACKY AND PRESSURE-SENSITIVE ADHESIVE MASS UNITED TO SAID BACKING; SAID ADHESIVE MASS INCLUDING A MAJOR PORTION OF AT LEAST ONE ELASTOMERIC BASE SELECTED FROM THE GROUP CONSISTING OF: NATURAL RUBBER; SYNTHETIC POLYISOPRENE; THE VULCANIZABLE ELASTOMERIC POLYMERS AND INTERPOLYMERS OF FROM ABOUT 40 TO ABOUT 90 PER CENT BUTADIENE AND FROM ABOUT 10 TO ABOUT 60 PER CENT STYRENE; POLYACRYLATE COPOLYMERS AND INTERPOLYMERS; AND THE LOWER VINYL ETHER POLYMERS; AND A MINOR PROPORTION, NOT MORE THAN FIVE PER CENT BY WEIGHT OF ONE OR MORE SPECIFIC MASS DEACTIVATORS HAVING THE PROPERTY OF REDUCING THE ADHESION OF SAID ADHESIVE MASS TO MATERIALS HAVING HYDROPHILLIC CHARACTERISTICS RELATIVELY MUCH MORE THAN THEY REDUCE THE ADHESION OF SAID ADHESION MASS TO MATERIALS HAVING HYDROPHOBIC CHARACTERISTICS, WHICH DEACTIVATORS ARE: 1 SURFACE ACTIVE;
Claim 3
Dependent Claim
28 words
WATER-INSOLUBLE AND OIL-SOLUBLE EMULSIFIERS OF THE WATER-IN-OIL TYPE; 3. MATERIALS HAVING A SOLIDIFICATION POINT IN EXCESS OF -10* F.; 4. DISPERSIBLE IN SAID ADHESIVE MASS COMPRISING PHOSPHOLIPID MATERIAL.
Claim 4
Dependent Claim
28 words
WATER-INSOLUBLE AND OIL-SOLUBLE EMULSIFIERS OF THE WATER-IN-OIL TYPE; 3. MATERIALS HAVING A SOLIDIFICATION POINT IN EXCESS OF -10* F.; 4. DISPERSIBLE IN SAID ADHESIVE MASS COMPRISING PHOSPHOLIPID MATERIAL.
References Cited (Backward Citations)
GB464174A
Cited
US2349508A
Cited
US2365020A
Cited
US2395419A
Cited
US2463452A
Cited
US2439481A
Cited
US2462029A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-20 | 1957-01-19 | 1957-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-20 | 1961-01-19 | 1961-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-20 | 1965-01-19 | 1965-07-21 | $7700.00 | Window Closed / Lapsed |