US3615992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing adhesive products
Assignee: NORWOOD INDUSTRIES Inc A CORP OF PA
•
Filing: 1968-04-12
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Granted: 1971-10-26
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Expires: 1988-04-12
Abstract
Abstract Method of forming a composite adhesive products in roll form are provided by coating a film adhesive onto one side of doublecoated release paper, abrading the other surface of the release paper and partially removing the release coating therefrom, and winding the product in roll form. These products are useful in a process in which a pressure-sensitive adhesive tape is applied to the abraded surface of the release paper, thereby making separation of the release paper from the adhesive easily accomplished during use.
Inventors
- 👤 Robert Jeffries
- 👤 Martin M Grover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:39
CPC Classifications
C; C09; C09J; C09J7/00; C09J7/20; C09J7/21; C09J2400/00; C09J2400/20; C09J2400/28; C09J2400/283
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
17 words
abrading the second major surface of said sheet material to partially remove the release coating therefrom, and
Claim 2
Dependent Claim
40 words
The method of claim 1 in which said film adhesive is provided by coating a liquid film-forming adhesive composition onto the first major surface of said sheet materIal and drying said adhesive composition while in contact with said release paper.
Claim 3
Dependent Claim
16 words
at least partially removing the release coating from the second major surface of said release paper,
Claim 4
Dependent Claim
30 words
applying the surface of said film adhesive opposite that which is in contact with the release paper to an adherend member whereby said adhesive is adherently bonded to said member,
Claim 5
Independent Claim
11 words
A method of producing an adhesive-backed product comprising the steps of
Claim 6
Dependent Claim
6 words
winding the product into roll form.
Claim 7
Dependent Claim
15 words
cutting the adhesive film to conform substantially to the shape of said adherend member, and
Claim 8
Dependent Claim
18 words
The method of claim 3 in which the product obtained from step (5) is wound into roll form.
Claim 9
Dependent Claim
17 words
The method of claim 3 in which said adherend member is a thin metal or plastic member.
Claim 10
Dependent Claim
16 words
applying the said second surface of the release paper to a normally tacky pressure-sensitive adhesive tape.
Claim 11
Dependent Claim
20 words
The method of claim 3 in which the release coating is at least partially removed by abrading the surface thereof.
Claim 12
Dependent Claim
24 words
The method of claim 3 in which the release coating is at least partially removed by contact with a solvent for the release coating.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |