US4165266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation curable pressure sensitive adhesive compositions
Assignee: Union Carbide Corp
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Filing: 1977-03-30
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Granted: 1979-08-21
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Expires: 1997-03-30
Abstract
Abstract Compositions comprising poly (vinyl alkyl ether), a liquid monoacrylate monomer and photoinitiator cure upon exposure to radiation to form pressure sensitive adhesives having an excellent balance of peel strength, shear time, and quick stick.
Inventors
- 👤 Kenneth C. Stueben
- 👤 Raymond G. Azrak
- 👤 Michael F. Patrylow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:09
CPC Classifications
C; C09; C09J; C09J4/00; C09J4/06; C09J7/00; C09J7/20; C09J7/22; C09J7/30; C09J7/38; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31786; Y10T428/31797
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
94 words
A radiation curable pressure sensitive adhesive composition comprising: (a) from 20 to 70 weight percent of a liquid monoacrylate monomer having an inherent viscosity of less than about 1850 cps. at 25° C.; (b) from 30 to 80 weight percent of a poly(vinyl alkyl ether) having from 1 to 4 carbon atoms in the alkyl segment and having a reduced viscosity of from 0.1 to 0.8, measured at a concentration of 0.1 gram of resin per 100 ml. of benzene at 20° C.; and (c) from 0 to 10 weight percent of a photoinitiator.
Claim 2
Dependent Claim
94 words
A radiation curable pressure sensitive adhesive composition comprising: (a) from 20 to 70 weight percent of a liquid monoacrylate monomer having an inherent viscosity of less than about 1850 cps. at 25° C.; (b) from 30 to 80 weight percent of a poly(vinyl alkyl ether) having from 1 to 4 carbon atoms in the alkyl segment and having a reduced viscosity of from 0.1 to 0.8, measured at a concentration of 0.1 gram of resin per 100 ml. of benzene at 20° C.; and (c) from 0 to 10 weight percent of a photoinitiator.
Claim 3
Dependent Claim
40 words
A radiation curable pressure sensitive adhesive composition as claimed in claim 1, wherein (a) is present at a concentration of from 35 to 50 weight percent and (b) is present at a concentration of from 50 to 65 weight percent.
Claim 4
Dependent Claim
26 words
A radiation curable pressure sensitive adhesive composition as claimed in claim 1, wherein (c) is present at a concentration of from 1 to 5 weight percent.
Claim 5
Dependent Claim
26 words
A radiation curable pressure sensitive adhesive composition as claimed in claim 1, wherein (c) is present at a concentration of from 2 to 3 weight percent.
Claim 6
Dependent Claim
21 words
A radiation curable pressure sensitive adhesive composition as claimed in claim 1, wherein said poly(vinyl alkyl ether) is poly(vinyl ethyl ether).
Claim 7
Dependent Claim
26 words
A radiation curable pressure sensitive adhesive composition as claimed in claim 1, wherein said poly(vinyl alkyl ether) has a reduced viscosity of from 0.2 to 0.6.
Claim 8
Dependent Claim
26 words
A radiation curable pressure sensitive adhesive composition as claimed in claim 1, wherein said liquid monoacrylate monomer is a carbamyloxy alkyl acrylate or carbamyloxy alkyl methacrylate.
Claim 9
Dependent Claim
21 words
A radiation curable pressure sensitive adhesive composition as claimed in claim 1, wherein said liquid monoacrylate monomer is N-methyl-2-carbamyloxy ethyl acrylate.
Claim 10
Dependent Claim
21 words
A radiation curable pressure sensitive adhesive composition as claimed in claim 5, wherein said liquid monoacrylate monomer is N-methyl-2-carbamyloxy ethyl acrylate.
Claim 11
Dependent Claim
17 words
A radiation curable pressure sensitive adhesive composition as claimed in claim 1, wherein said photoinitiator is benzophenone.
Claim 12
Dependent Claim
17 words
A radiation curable pressure sensitive adhesive composition as claimed in claim 9, wherein said photoinitiator is benzophenone.
Claim 13
Dependent Claim
60 words
A radiation curable pressure sensitive adhesive composition as claimed in claim 11, wherein said N-methyl-2-carbamyloxy ethyl acrylate is present at a concentration of from 35 to 50 weight percent, said poly(vinyl ethyl ether) is present at a concentration of from 50 to 65 weight percent, and said benzophenone is present at a concentration of from 2 to 3 weight percent.
Claim 14
Dependent Claim
20 words
A radiation curable pressure sensitive adhesive composition as claimed in claim 1, wherein said liquid monoacrylate monomer is cyclohexyl acrylate.
Claim 15
Dependent Claim
20 words
A radiation curable pressure sensitive adhesive composition as claimed in claim 1, wherein said liquid monoacrylate monomer is 2-ethoxyethyl acrylate.
Claim 16
Dependent Claim
20 words
A radiation curable pressure sensitive adhesive composition as claimed in claim 1, wherein said liquid monoacrylate monomer is isobornyl acrylate.
References Cited (Backward Citations)
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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) | 1982-08-20 | 1983-02-19 | 1983-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-08-20 | 1987-02-19 | 1987-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-08-20 | 1991-02-19 | 1991-08-21 | $7700.00 | Window Closed / Lapsed |