Patent US3772063A successfully refreshed from Google Patents.
US3772063A
Expired / Lapsed
US
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Process for the production of pressure-sensitive adhesive materials
Assignee: Nitto Denko Corp
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Filing: 1971-07-09
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Granted: 1973-11-13
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Expires: 1991-07-09
Abstract
Abstract A pressure-sensitive tape is produced without the necessity of a crosslinking agent and a solvent by applying to a support a composition containing a polymerizable vinyl monomer represented by the general formula WHEREIN R represents H or CH3 and R'' represents an alkyl group having less than 10 carbon atoms and irradiating the monomer layer with ionizing high energy rays to such an extent that the monomer is provided with a pressure-sensitive adhesivity (0.1 to 100 megarads). D R A W I N G
Inventors
- 👤 S Fukukawa
- 👤 T Shimomura
- 👤 I Ijichi
- 👤 N Yoshikawa
- 👤 T Murakami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:50
CPC Classifications
C; C09; C09J; C09J4/00; C09J7/00; C09J7/30; C09J7/38; C09J7/381; C09J7/385; Y; Y10; Y10S; Y10S522/00; Y10S522/911
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
33 words
The process as claimed in claim 1 wherein the proportion of the polymerizable vinyl monomer having the polar group is less than 0.20 mole per mole of the monomer represented by said formula.
Claim 2
Dependent Claim
34 words
The process as claimed in claim 1 wherein the proportion of the polymerizable vinyl monomer having the polar group is from 0.01 to 0.20 mole per mole of the monomer represented by said formula.
Claim 3
Dependent Claim
24 words
The process as claimed in claim 1 wherein said monomer represented by said formula is butyl acrylate, iso-octyl acrylate, acrylic acid-2-ethylhexyl, or ethyl methacrylate.
Claim 4
Dependent Claim
20 words
The process as claimed in claim 1 wherein the dosage of tHe ionizing radiation is from 0.5 to 50 megarads.
References Cited (Backward Citations)
US3661618A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-12 | 1977-05-14 | 1977-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-12 | 1981-05-14 | 1981-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-12 | 1985-05-14 | 1985-11-13 | $7700.00 | Window Closed / Lapsed |