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Patent US4007322A successfully refreshed from Google Patents.
US4007322A
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Acrylic anaerobic sealant compositions and method of bonding
Assignee: Accrabond Corp
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Filing: 1974-10-07
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Granted: 1977-02-08
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Expires: 1994-10-07
Abstract
Abstract Anaerobic sealant compositions comprise a monomer having one of the general formulas ##STR1## wherein R is hydrogen, halogen, or alkyl containing 1 to 5 carbon atoms and wherein R' is hydrogen, halogen, alkyl containing 1 to 5 carbon atoms, or --CO--CR=CH 2 ; a peroxide or peroxy-ester polymerization catalyst and a polymerization inhibitor for said monomer such as the monomethyl ether of hydroquinone. The compositions can further include a polymerization accelerator, such as benzoic sulfimide, for rapid polymerization and rapid bonding. The compositions are useful for bonding two surfaces and particularly for bonding metallic surfaces such as in bonding a nut to a bolt.
Inventors
- 👤 Jack L. House
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:54
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/10; C09J; C09J4/00; C09K2003/1034; C09K2003/1065; C09K2200/00; C09K2200/06; C09K2200/0615; C09K2200/0625; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31699
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
90 words
In an anaerobic sealant composition having extended shelf life in the presence of oxygen and capable of rapid polymerization when oxygen is excluded therefrom including a monomer, a polymerization catalyst for the monomer, selected from the group consisting of peroxy and peroxy-ester compounds, and a polymerization inhibitor for the monomer, the improvement comprising a monomer having the general formula ##STR4## wherein R is hydrogen, halogen, or alkyl containing 1 to 5 carbon atoms and wherein R' is hydrogen, halogen, alkyl containing 1 to 5 carbon atoms, or --CO--CR=CH 2 .
Claim 2
Dependent Claim
90 words
In an anaerobic sealant composition having extended shelf life in the presence of oxygen and capable of rapid polymerization when oxygen is excluded therefrom including a monomer, a polymerization catalyst for the monomer, selected from the group consisting of peroxy and peroxy-ester compounds, and a polymerization inhibitor for the monomer, the improvement comprising a monomer having the general formula ##STR4## wherein R is hydrogen, halogen, or alkyl containing 1 to 5 carbon atoms and wherein R' is hydrogen, halogen, alkyl containing 1 to 5 carbon atoms, or --CO--CR=CH 2 .
Claim 3
Dependent Claim
52 words
A composition as defined by claim 1 wherein the monomer has the general formula [CH.sub.2 =CR--CO--O--H.sub.2 C].sub.3 --C--CH.sub.2 OR' wherein each R, the same or different, is hydrogen, halogen, or alkyl containing 1 to 5 carbon atoms and wherein R' is hydrogen, halogen, alkyl containing 1 to 5 carbon atoms, or --CO--CR=CH.sub.2.
Claim 4
Dependent Claim
48 words
A composition as defined by claim 1 wherein the monomer has the general formula ##STR5## wherein each R, the same or different, is hydrogen, halogen, or alkyl containing 1 to 5 carbon atoms and wherein R' is hydrogen, halogen, alkyl containing 1 to 5 carbon atoms, or --CO--CR=CH.sub.2.
Claim 5
Dependent Claim
31 words
A composition as defined by claim 1 which further includes a curing accelerator for decreasing the time necessary to cure said monomer when said monomer is not in contact with oxygen.
Claim 6
Dependent Claim
25 words
A composition as defined by claim 4 wherein the curing accelerator is an organic sulfimide having the formula ##STR6## or a secondary or tertiary amine.
Claim 7
Dependent Claim
24 words
A composition as defined by claim 5 wherein the curing accelerator is a tertiary amine selected from the group consisting of triethylamine, and dimethyl-para-toluidine.
Claim 8
Dependent Claim
27 words
A composition as defined by claim 1 wherein said catalyst is present in an amount in the range of about 0.1-15% by weight of the total composition.
Claim 9
Dependent Claim
40 words
A composition as defined by claim 1 wherein the polymerization inhibitor is hydroquinone or the monomethyl ether of hydroquinone and wherein said inhibitor is present in an amount of about 10 ppm-25,000 ppm based on the weight of the composition.
Claim 10
Dependent Claim
22 words
A composition as defined by claim 1 wherein the polymerization inhibitor is a mixture of hydroquinone and the monomethyl ether of hydroquinone.
Claim 11
Dependent Claim
21 words
A composition as defined by claim 4 wherein the accelerator is a mixture of an organic sulfimide and a tertiary amine.
Claim 12
Dependent Claim
29 words
A composition as defined by claim 1 wherein said monomer is pentaerythritol triacrylate, said polymerization catalyst is di-t-butyl diperphthalate, and said polymerization inhibitor is the monomethyl ether of hydroquinone.
Claim 13
Dependent Claim
38 words
A composition as defined by claim 11 wherein said catalyst is included in an amount in the range of about 0.1 to 15%, and said inhibitor is included in an amount of between 10 ppm and 25,000 ppm.
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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) | 1980-02-08 | 1980-08-09 | 1981-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-08 | 1984-08-09 | 1985-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-08 | 1988-08-09 | 1989-02-08 | $7700.00 | Window Closed / Lapsed |