Patent US4044044A successfully refreshed from Google Patents.
US4044044A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anaerobic adhesive composition containing 0.05 to 20 parts per weight of phosphate esters of hydroxyacrylates per 100 parts per weight of polymerizable acrylic ester monomer
Assignee: Individual
•
Filing: 1976-04-21
•
Granted: 1977-08-23
•
Expires: 1996-04-21
Abstract
Abstract In an anaerobic adhesive composition comprising an anaerobically polymerizable acrylic ester monomer and an organic peroxide, the composition further contains a phosphorus compound in an amount of at least 0.05 weight percent to the weight of said monomer, thereby to possess excellent adhesive force.
Inventors
- 👤 Tsutomu Saito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:31
CPC Classifications
C; C09; C09J; C09J4/00
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
118 words
In an anaerobic adhesive composition comprising an anaerobically polymerizable acrylic ester monomer or mixtures thereof and an organic peroxide characterized wherein said composition contains therein phosphorus compounds having the following general formulas (A) and (B) singly or in combination, in an amount of at least 0.05 and not more than 20 parts per weight per 100 parts per weight of said monomer, thereby to enhance an adhesive force of the composition; ##STR15## in the formulas (A) and (B), R.sub. 1 indicates H, CH 3 , or C 2 H 2 , R 2 indicates --CH 2 --, --c 2 H 4 --, --C 3 H 6 -- or ##STR16## and n indicates an integer from 1 to 10.
Claim 2
Dependent Claim
118 words
In an anaerobic adhesive composition comprising an anaerobically polymerizable acrylic ester monomer or mixtures thereof and an organic peroxide characterized wherein said composition contains therein phosphorus compounds having the following general formulas (A) and (B) singly or in combination, in an amount of at least 0.05 and not more than 20 parts per weight per 100 parts per weight of said monomer, thereby to enhance an adhesive force of the composition; ##STR15## in the formulas (A) and (B), R.sub. 1 indicates H, CH 3 , or C 2 H 2 , R 2 indicates --CH 2 --, --c 2 H 4 --, --C 3 H 6 -- or ##STR16## and n indicates an integer from 1 to 10.
Claim 3
Dependent Claim
20 words
The composition as claimed in claim 1 wherein said acrylic ester monomer or mixtures includes 2,2-bis (4-methacryloxy di-ethoxy phenyl) propane.
Claim 4
Dependent Claim
18 words
The composition as claimed in claim 1 wherein said acrylic ester monomer or mixtures includes tri-methylol propane tri-methacrylate.
Claim 5
Dependent Claim
18 words
The composition as claimed in claim 1 wherein said acrylic ester monomer or mixtures includes tetra-ethylene glycol di-methacrylate.
Claim 6
Dependent Claim
14 words
The composition as claimed in claim 1 wherein said organic peroxide is cumene hydroperoxide.
Claim 7
Dependent Claim
22 words
The composition as claimed in claim 1 wherein said phosphorus compound having the general formula (A) is bis (2-hydroxyethyl methacrylate acid phosphate.
Claim 8
Dependent Claim
21 words
The composition as claimed in claim 1 wherein said phosphorus compound having the general formula (B) is 2-hydroxyethyl methacrylate acid phosphate.
Claim 9
Dependent Claim
23 words
The composition as claimed in claim 1 wherein said amount of phosphorus compound is in the range of from 0.1 to 10 parts.
Claim 10
Dependent Claim
24 words
The composition as claimed in claim 2 in which said amount of phosphorus compound is in the range of from 0.1 to 10 parts.
Claim 11
Dependent Claim
24 words
The composition as claimed in claim 3 in which said amount of phosphorus compound is in the range of from 0.1 to 10 parts.
Claim 12
Dependent Claim
24 words
The composition as claimed in claim 4 in which said amount of phosphorus compound is in the range of from 0.1 to 10 parts.
Claim 13
Dependent Claim
32 words
The composition as claimed in claim 1 in which the mixture of monomers includes at least two of the following: 2,2-bis (4-methacryloxy di-ethoxy phenyl) propane; tri-methylol propane tri-methacrylate; and tetra-ethylene glycol di-methacrylate.
Claim 14
Dependent Claim
24 words
The composition as claimed in claim 12 in which said amount of phosphorus compound is in the range of from 0.1 to 10 parts.
References Cited (Backward Citations)
US3751399A
Cited
US3855364A
Cited
US3770811A
Cited
US3944521A
Cited
US3890273A
Cited
US3957561A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-22 | 1981-02-21 | 1981-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-22 | 1985-02-21 | 1985-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-22 | 1989-02-21 | 1989-08-23 | $7700.00 | Window Closed / Lapsed |