US3084067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure-sensitive adhesive sheet having hydrophilic film backing and primer of rubbery latex, hydrophilic methylolated polyacrylamide, and acid catalyst and method of making it
Assignee: Johnson and Johnson
•
Filing: 1960-07-13
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Granted: 1963-04-02
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Expires: 1980-07-13
Abstract
No abstract record available.
Inventors
- 👤 Smith Richard Myles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:04
CPC Classifications
C; C09; C09J; C09J7/00; C09J7/50; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2835; Y10T428/2843; Y10T428/2852; Y10T428/2857; Y10T428/2878; Y10T428/2883
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A PRESSURE-SENSITIVE ADHESIVE SHEET WHICH COMPRISES A HYDROPHILIC FILM BACKING, A PRIMER LAYER BONDED TO ONE SIDE OF SAID BACKING AND ESSENTIALLY COMPRISING THE DEPOSITION PRODUCT OF A MIXTURE OF AN ACID STABLE RUBBERY LATEX, A HYDROPHILIC METHYLOLATED POLYACRYLAMIDE AND A SUFFICIENT AMOUNT OF AN ACID CATALYST TO MAINTAIN THE PH OF THE MIXTURE BETWEEN ABOUT 6 AND 2, AND A LAYER OF A HYDROPHOBIC RUBBERY PRESSURE-SENSITIVE ADHESIVE BONDED TO THE SIDE OF THE PRIMER LAYER OPPOSITE TO SAID BACKING, SAID ADHESIVE LAYER BEING BONDED TO THE BACKING VIA THE PRIMER MORE FIRMLY THAN IF THE PRIMER WERE OMITTED, SAID PRESSURE-SENSITIVE ADHESIVE SHEET BEING HIGHLY RESISTANT TO THE EFFECTS OF MOISTURE AND HIGH HUMIDITIES AND BEING ADAPTED TO BE REMOVED FROM SURFACES TO WHICH TEMPORARILY APPLIED WITHOUT DELAMINATION OR OFFSETTING OF ADHESIVE.
Claim 2
Dependent Claim
132 words
A PRESSURE-SENSITIVE ADHESIVE SHEET WHICH COMPRISES A HYDROPHILIC FILM BACKING, A PRIMER LAYER BONDED TO ONE SIDE OF SAID BACKING AND ESSENTIALLY COMPRISING THE DEPOSITION PRODUCT OF A MIXTURE OF AN ACID STABLE RUBBERY LATEX, A HYDROPHILIC METHYLOLATED POLYACRYLAMIDE AND A SUFFICIENT AMOUNT OF AN ACID CATALYST TO MAINTAIN THE PH OF THE MIXTURE BETWEEN ABOUT 6 AND 2, AND A LAYER OF A HYDROPHOBIC RUBBERY PRESSURE-SENSITIVE ADHESIVE BONDED TO THE SIDE OF THE PRIMER LAYER OPPOSITE TO SAID BACKING, SAID ADHESIVE LAYER BEING BONDED TO THE BACKING VIA THE PRIMER MORE FIRMLY THAN IF THE PRIMER WERE OMITTED, SAID PRESSURE-SENSITIVE ADHESIVE SHEET BEING HIGHLY RESISTANT TO THE EFFECTS OF MOISTURE AND HIGH HUMIDITIES AND BEING ADAPTED TO BE REMOVED FROM SURFACES TO WHICH TEMPORARILY APPLIED WITHOUT DELAMINATION OR OFFSETTING OF ADHESIVE.
References Cited (Backward Citations)
US2795515A
Cited
US2926105A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |