US4055542A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anaerobically curable sealing composition containing (A) acrylate derivative of bisphenol A and (B) hydroxyacrylate
Assignee: ThreeBond Co Ltd
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Filing: 1976-02-23
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Granted: 1977-10-25
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Expires: 1996-02-23
Abstract
Abstract An anaerobically curable sealing composition comprising a polymerizable monomer and an organic peroxide, characterized in that said monomer is a mixture of bisphenol type compound (A) and hydroxy type compound (B), the amount ratio of said (A) and (B) being; A: 95 to 50 parts by weight, B: 50 to 5 parts by weight, Whereby providing to the composition many kinds of excellent characteristics, such as being speedy in curing rate, greater in adhesive force, etc..
Inventors
- 👤 Tsutomu Saito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:51
CPC Classifications
C; C09; C09J; C09J4/00; C08; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/20
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
146 words
An anaerobically curable sealing composition comprising a polymerisable monomer and an organic peroxide, characterized in that said monomer is a mixture of the following monomers (A) and (B), the ratio of the amounts of which are: Monomer (A) : 95 to 50 parts by weight, Monomer (B) : 50 to 5 parts by weight. monomer (A) having the general formula of ##STR5## wherein, R represents hydrogen or alkyl radical having from 1 to 4 carbon atoms, R' represents alkylene radical having from 2 to 4 carbon atoms and m represents an integer of from 2 to 8, monomer (B) having the general formula of ##STR6## in which, R 1 indicates hydrogen or alkyl radical having from 1 to 4 carbon atoms, R 2 indicates --CH 2 --CH 3 , --CH 2 --CH 2 --CH 3 or ##STR7##and n indicates an integer of from 1 to 3.
Claim 2
Dependent Claim
146 words
An anaerobically curable sealing composition comprising a polymerisable monomer and an organic peroxide, characterized in that said monomer is a mixture of the following monomers (A) and (B), the ratio of the amounts of which are: Monomer (A) : 95 to 50 parts by weight, Monomer (B) : 50 to 5 parts by weight. monomer (A) having the general formula of ##STR5## wherein, R represents hydrogen or alkyl radical having from 1 to 4 carbon atoms, R' represents alkylene radical having from 2 to 4 carbon atoms and m represents an integer of from 2 to 8, monomer (B) having the general formula of ##STR6## in which, R 1 indicates hydrogen or alkyl radical having from 1 to 4 carbon atoms, R 2 indicates --CH 2 --CH 3 , --CH 2 --CH 2 --CH 3 or ##STR7##and n indicates an integer of from 1 to 3.
Claim 3
Dependent Claim
29 words
The composition as claimed in claim 1 wherein said ratio is, monomer (A) : 90 to 70 parts by weight, monomer (B) : 30 to 10 parts by weight.
Claim 4
Dependent Claim
15 words
The composition as claimed in claim 1 wherein said monomer (B) is 2-hydroxy ethyl methacrylate.
Claim 5
Dependent Claim
38 words
The composition as claimed in claim 2 wherein the ratio of the amounts of said monomers (A) and (B) is, monomer (A) : 90 to 70 parts by weight, monomer (B) : 30 to 10 parts by weight.
Claim 6
Dependent Claim
21 words
The composition as claimed in claim 1 wherein a polymerization accelerator is added to said mixture of monomers (A) and (B).
Claim 7
Dependent Claim
30 words
The composition as claimed in claim 5 wherein said polymerization accelerator is one or more substances selected from the group consisting of ortho-sulfo benzoic imide, 1,2,3,4 - tetrahydroquinoline, and dextrin.
Claim 8
Dependent Claim
24 words
The composition as claimed in claim 1 wherein an agent for increasing adhesive force is added to said mixture of monomers (A) and (B).
Claim 9
Dependent Claim
17 words
The composition as claimed in claim 7 wherein said agent for increasing adhesive force is acrylic acid.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-10-24 | 1981-04-25 | 1981-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-24 | 1985-04-25 | 1985-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-24 | 1989-04-25 | 1989-10-25 | $7700.00 | Window Closed / Lapsed |