US4158647A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multifunctional acrylate n-vinylamide anaerobic adhesive compositions
Assignee: ISP Investments LLC
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Filing: 1978-03-06
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Granted: 1979-06-19
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Expires: 1998-03-06
Abstract
Abstract A solventless, fast-setting anaerobic adhesive composition comprises two monomer parts which are adapted to be copolymerized anaerobically at ambient temperature between opposing surfaces to form a high-strength bond thereto. One part comprises a multifunctional acrylate monomer and the other an N-vinylamide monomer. The formulation also includes a redox system consisting of oxidizing and reducing agent components for initiating polymerization between said monomers. The oxidizing agent of the redox system may be present in either one of said parts, preferably with the multifunctional acrylate. The reducing agent is present in the other part, usually the N-vinylamide. Upon anaerobic admixing of the respective parts of the composition at ambient temperature, the oxidizing and reducing agents react to generate free radicals which initiates copolymerization of the monomers to form the desired high-strength adhesive bond to said surfaces.
Inventors
- 👤 Julian L. Azorlosa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:12
CPC Classifications
C; C09; C09J; C09J4/00; C08; C08F; C08F291/00; C09J4/06; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31634; Y10T428/31638; Y10T428/31645; Y10T428/31649; Y10T428/31678; Y10T428/31703; Y10T428/31855
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
121 words
A solventless, fast-setting adhesive composition consisting essentially of two monomer parts which are adapted to be copolymerized anaerobically at ambient temperature between opposing surfaces to form a high-strength bond thereto one of said parts being an ethylenically unsaturated polymerizable multifunctional acrylate monomer and the other part an N-vinylamide monomer, one of said parts having an oxidizing agent present therein and the other part a reducing agent, said agents being capable of reacting when brought together to initiate copolymerization of said monomers to form said desired bond, characterized in that a soluble resin is included with said first or second parts, to increase the viscosity of the monomer in that part to that of a viscous liquid, but not inhibit the polymerization.
Claim 2
Dependent Claim
121 words
A solventless, fast-setting adhesive composition consisting essentially of two monomer parts which are adapted to be copolymerized anaerobically at ambient temperature between opposing surfaces to form a high-strength bond thereto one of said parts being an ethylenically unsaturated polymerizable multifunctional acrylate monomer and the other part an N-vinylamide monomer, one of said parts having an oxidizing agent present therein and the other part a reducing agent, said agents being capable of reacting when brought together to initiate copolymerization of said monomers to form said desired bond, characterized in that a soluble resin is included with said first or second parts, to increase the viscosity of the monomer in that part to that of a viscous liquid, but not inhibit the polymerization.
Claim 3
Dependent Claim
17 words
The composition according to claim 1 wherein said viscous liquid has a viscosity of about 50-5,000 cps.
Claim 4
Dependent Claim
22 words
The composition according to claim 1 wherein said resin is present in an amount of about 5-50% by weight of said part.
Claim 5
Dependent Claim
38 words
The composition according to claim 1 wherein said first part is made up of about 5-50% by weight resin, 50-95% by weight multifunctional acrylate, 0.01-5% by weight oxidizing agent, said part having a viscosity between about 50-5,000 cps.
Claim 6
Dependent Claim
47 words
The composition according to claim 1 wherein said one part consisting essentially of about: 93 g. 1,6-hexanediol diacrylate 3 g. t-butyl hydroperoxide (70% by wt.) 7 g. cellulose acetate butyrate, and said other part comprises about: 93 g. N-vinylpyrrolidone 3 g. triethylenetetraamine 7 g. cellulose acetate butyrate.
Claim 7
Dependent Claim
44 words
The composition according to claim 1 wherein said one part consisting essentially of about: 20 g. 1,6-hexanediol diacrylate 2 g. benzoyl peroxide 8 g. cellulose acetate butyrate, and said other part comprises about: 90 g. N-vinylpyrrolidone 2 g. N,N-diethylaniline 8 g. cellulose acetate butyrate.
Claim 8
Dependent Claim
41 words
The composition according to claim 1 wherein said one part consisting essentially of about; 60 g. 1,6-hexanediol diacrylate 3 g. benzoyl peroxide 40 g. polyvinyl acetate and said other part comprises about: 60g. N-vinylpyrrolidone 3 g. N,N-diethylaniline 40 g. polyvinyl acetate.
Claim 9
Dependent Claim
46 words
The composition according to claim 1 wherein said one part consisting essentially of about: 93 g. 1,6-hexanediol diacrylate 3 g. benzoyl peroxide 7 g. cellulose acetate butyrate 10 g. aluminum powder, and said other part comprises about: 60 g. N-vinylpyrrolidone 3 g. N,N-diethylaniline 40 g. polyvinylacetate.
References Cited (Backward Citations)
US3901858A
Cited
US3883453A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-06-18 | 1982-12-18 | 1983-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-06-18 | 1986-12-18 | 1987-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-06-18 | 1990-12-18 | 1991-06-19 | $7700.00 | Window Closed / Lapsed |