Patent US2165745A successfully refreshed from Google Patents.
US4151055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation curable adhesive compositions
Assignee: Union Carbide Corp
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Filing: 1976-04-05
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Granted: 1979-04-24
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Expires: 1996-04-05
Abstract
Abstract Compositions containing poly(vinyl alkyl ether), multifunctional acrylates, and optionally, monoacrylates and photoinitiators, when cured by exposure to radiation, produce pressure sensitive adhesives having good adhesive properties, such as peel strength, quick stick and shear time.
Inventors
- 👤 Kenneth C. Stueben
- 👤 Raymond G. Azrak
- 👤 Michael F. Patrylow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:28
CPC Classifications
C; C09; C09J; C09J4/00; C09J4/06; C08; C08K; C08K5/00; C08K5/04; C08K5/07; C08K5/10; C09J129/00; C09J129/10; C08L; C08L2666/00; C08L2666/28; C08L2666/34; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31786; Y10T428/31797
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
81 words
A radiation curable pressure sensitive adhesive composition comprising (a) from 80 to 90 weight percent of a poly(vinyl alkyl ether) having a reduced viscosity of from 0.1 to 0.8, measured at a concentration of 0.1 grams of resin in 100 ml. of benzene at 20° C., in which the alkyl unit has from 1 to 4 carbon atoms, (b) from 10 to 20 weight percent of a multifunctional acrylate compound, and (c) from 0 to 10 weight percent of a photoinitiator.
Claim 2
Dependent Claim
81 words
A radiation curable pressure sensitive adhesive composition comprising (a) from 80 to 90 weight percent of a poly(vinyl alkyl ether) having a reduced viscosity of from 0.1 to 0.8, measured at a concentration of 0.1 grams of resin in 100 ml. of benzene at 20° C., in which the alkyl unit has from 1 to 4 carbon atoms, (b) from 10 to 20 weight percent of a multifunctional acrylate compound, and (c) from 0 to 10 weight percent of a photoinitiator.
Claim 3
Dependent Claim
27 words
A radiation curable pressure sensitive adhesive composition as claimed in claim 1, wherein component (c) is present at a concentration of from 1 to 5 weight percent.
Claim 4
Dependent Claim
43 words
A radiation curable pressure sensitive adhesive composition as claimed in claim 1, wherein the poly(vinyl alkyl ether) has a reduced viscosity of from 0.2 to 0.4, measured at a concentration of 0.1 grams of resin in 100 ml. of benzene at 20° C.
Claim 5
Dependent Claim
21 words
A radiation curable pressure sensitive adhesive composition as claimed in claim 1, wherein the poly(vinyl alkyl ether) is poly(vinyl ethyl ether).
Claim 6
Dependent Claim
21 words
A radiation curable pressure sensitive adhesive composition as claimed in claim 2, wherein the poly(vinyl alkyl ether) is poly(vinyl ethyl ether).
Claim 7
Dependent Claim
21 words
A radiation curable pressure sensitive adhesive composition as claimed in claim 3, wherein the poly(vinyl alkyl ether) is poly(vinyl ethyl ether).
Claim 8
Dependent Claim
21 words
A radiation curable pressure sensitive adhesive composition as claimed in claim 1, wherein the poly(vinyl alkyl ether) is poly(vinyl methyl ether).
Claim 9
Dependent Claim
107 words
A radiation curable pressure sensitive adhesive composition comprising (a) from 65 to 75 weight percent of a poly(vinyl alkyl ether) having a reduced viscosity of from 65 to 75 weight percent of a poly(vinyl alkyl ether) having a reduced viscosity of from 0.1 to 0.8, measured at a concentration of 0.1 grams of resin in 100 ml. of benzene at 20° C., in which the alkyl unit has from 1 to 4 carbon atoms, (b) from 10 to 20 weight percent of a multifunctional acrylate compound, (c) from 10 to 20 weight of a monoacrylate compound, and (d) from 0 to 10 weight percent of a photoinitiator.
Claim 10
Dependent Claim
107 words
A radiation curable pressure sensitive adhesive composition comprising (a) from 65 to 75 weight percent of a poly(vinyl alkyl ether) having a reduced viscosity of from 65 to 75 weight percent of a poly(vinyl alkyl ether) having a reduced viscosity of from 0.1 to 0.8, measured at a concentration of 0.1 grams of resin in 100 ml. of benzene at 20° C., in which the alkyl unit has from 1 to 4 carbon atoms, (b) from 10 to 20 weight percent of a multifunctional acrylate compound, (c) from 10 to 20 weight of a monoacrylate compound, and (d) from 0 to 10 weight percent of a photoinitiator.
Claim 11
Dependent Claim
27 words
A radiation curable pressure sensitive adhesive composition as claimed in claim 8, wherein component (d) is present at a concentration of from 1 to 5 weight percent.
Claim 12
Dependent Claim
43 words
A radiation curable pressure sensitive adhesive composition as claimed in claim 8, wherein the poly(vinyl alkyl ether) has a reduced viscosity of from 0.2 to 0.4, measured at a concentration of 0.1 grams of resin in 100 ml. of benzene at 20° C.
Claim 13
Dependent Claim
21 words
A radiation curable pressure sensitive adhesive composition as claimed in claim 9, wherein said poly(vinyl alkyl ether) is poly(vinyl ethyl ether).
Claim 14
Dependent Claim
21 words
A radiation curable pressure sensitive adhesive composition as claimed in claim 10, wherein said poly(vinyl alkyl ether) is poly(vinyl ethyl ether).
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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) | 1982-04-23 | 1982-10-23 | 1983-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-23 | 1986-10-23 | 1987-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-23 | 1990-10-23 | 1991-04-24 | $7700.00 | Window Closed / Lapsed |