Patent US4460760A successfully refreshed from Google Patents.
US4460760A
Expired / Lapsed
US
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Anaerobically curable compositions
Assignee: Okura Industrial Co Ltd
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Filing: 1982-06-17
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Granted: 1984-07-17
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Expires: 2002-06-17
Abstract
Abstract There is provided a novel anaerobically curable composition which is less irritant, strongly adhesive to metal materials without primers and also storable for a long time without significant deterioration. The composition comprises per 100 parts of a polymerizable methacrylate, 0.1 to 5.0 parts of the salt of o-benzoic sulfimide and a specified aromatic amine, 0.1 to 5.0 parts of an acid amide, and 0 to 3.0 parts of a gelling stabilizer.
Inventors
- 👤 Takanori Okamoto
- 👤 Takaharu Onishi
- 👤 Hideaki Matsuda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:22
CPC Classifications
C; C09; C09J; C09J4/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
70 words
An anaerobically curable composition which consists essentially of per 100 parts by weight of a polymerizable methacrylate: 0.1 to 5.0 parts by weight of the salt of o-benzoic sulfimide with a hetereocyclic, secondary amine of the formula (1) ##STR5## wherein R 1 and R 2 are hydrogen or a methyl group; 0.1 to 5.0 parts by weight of an acid amide; and 0. to 3.0 parts of a gelling stabilizer.
Claim 2
Dependent Claim
70 words
An anaerobically curable composition which consists essentially of per 100 parts by weight of a polymerizable methacrylate: 0.1 to 5.0 parts by weight of the salt of o-benzoic sulfimide with a hetereocyclic, secondary amine of the formula (1) ##STR5## wherein R 1 and R 2 are hydrogen or a methyl group; 0.1 to 5.0 parts by weight of an acid amide; and 0. to 3.0 parts of a gelling stabilizer.
Claim 3
Dependent Claim
131 words
The composition according to claim 1, in which the polymerizable methacrylate is (a) a compound represented by the general formula (2), ##STR6## wherein, R 3 , R 4 , R 5 and R 6 stand for hydrogen, an alkyl group having 1 to 4 carbon atoms, ##STR7## respectively, which may be the same or different, l stands for an integer of 1 to 8, p is 0 or 1, and q stands for an integer of 1 to 20; (b) a compound represented by the general formula (3), ##STR8## wherein, R 7 and R 8 stand for an alkylene group having 2 to 4 carbon atoms, and m and n stand for an integer of 1 to 8; or (c) a urethane polymethacrylate, or a mixture of two or more thereof.
Claim 4
Dependent Claim
13 words
The composition according to claim 1, in which the acid amide is formdimethylamide.
Claim 5
Dependent Claim
62 words
The composition according to claim 2, in which no gelling stabilizer is added or 0.0001 to 0.01 part by weight of oxalic acid is present as said gelling stabilizer per 100 parts by weight of the polymethyacrylate of said compound represented by said general formula (2), ##STR9## wherein q stands for 1 and the other variables are as specified in claim 2.
Claim 6
Dependent Claim
38 words
The composition according to claim 1 in which 0.01 to 3.0 parts by weight of magnesium or zinc salt of a carboxylic acid is present as said gelling stabilizer per 100 parts by weight of the polymerizable methacrylate.
Claim 7
Dependent Claim
71 words
The composition according to claim 1 in which 0.001 to 0.03 part by weight of the sodium salt of ethylenediaminetetraacetic acid is present as said gelling stabilizer per 100 parts by weight of the polymerizable methacrylate represented by the general formula (3), ##STR10## wherein R 7 and R 8 stand for alkylene group having 2 to 4 carbon atoms, and m and n stand for an integer of 1 to 8.
Claim 8
Dependent Claim
17 words
The composition according to claim 1, wherein said amine of formula (1) is 1,2,3,4-tetrahydroquinoline, 6-methyl-1,2,3,4-tetrahydroquinoline or 1,2,3,4-tetrahydroquinaldine.
Claim 9
Dependent Claim
39 words
The composition according to claim 1, wherein said salt of o-benzoic sulfimide and said amine of formula (1) is present in an amount of 0.5 to 3.0 parts by weight per 100 parts by weight of said polymerizable methacrylate.
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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) | 1987-07-17 | 1988-01-16 | 1988-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-07-17 | 1992-01-16 | 1992-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-07-17 | 1996-01-16 | 1996-07-17 | $7700.00 | Window Closed / Lapsed |