Patent US4048259A successfully refreshed from Google Patents.
US4048259A
Expired / Lapsed
US
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Anaerobically compositions containing acrylic ester-acids
Assignee: Henkel AG and Co KGaA
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Filing: 1976-07-02
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Granted: 1977-09-13
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Expires: 1996-07-02
Abstract
Abstract Anaerobically hardening adhesive compositions principally composed of a polymerizable acrylic ester and an organic aerobically-inactive, anaerobically-active peroxide polymerization catalyst therefor possess improved latent adhesive properties for metals when they contain an acrylic ester-acid of the formula: ##STR1## wherein R is --H or --CH 3 ; R' is H, halogen, --COOH, --CN, and loweralkyl, and X is a divalent C 1-6 hydrocarbon group, or a mixture of such ester-acids.
Inventors
- 👤 Bernd Wegemund
- 👤 Joachim Galinke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:20
CPC Classifications
C; C09; C09J; C09J4/00; Y; Y10; Y10S; Y10S528/00; Y10S528/905; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31699
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
103 words
An anaerobically setting adhesive and sealing composition consisting essentially of a polymerizable acrylic ester of spreadable viscosity, an organic aerobically inactive, anaerobically active peroxide polymerization initiator therefor, and an effective amount as latent agent improving the adhesiveness of said composition for metals when anaerobically set, in the range of 3% to 25% by weight, of an acrylic ester-acid of the formula: ##STR3## wherein R represents a substituent selected from the group consisting of --H and --CH 3 , R' represents a substituent selected from the group consisting of H, halogen, --COOH, --CN, and loweralkyl, and X represents a divalent C 1-6 hydrocarbon group.
Claim 2
Dependent Claim
103 words
An anaerobically setting adhesive and sealing composition consisting essentially of a polymerizable acrylic ester of spreadable viscosity, an organic aerobically inactive, anaerobically active peroxide polymerization initiator therefor, and an effective amount as latent agent improving the adhesiveness of said composition for metals when anaerobically set, in the range of 3% to 25% by weight, of an acrylic ester-acid of the formula: ##STR3## wherein R represents a substituent selected from the group consisting of --H and --CH 3 , R' represents a substituent selected from the group consisting of H, halogen, --COOH, --CN, and loweralkyl, and X represents a divalent C 1-6 hydrocarbon group.
Claim 3
Dependent Claim
10 words
A composition according to claim 1 wherein R represents H.
Claim 4
Dependent Claim
10 words
A composition according to claim 2 wherein R' represents H.
Claim 5
Dependent Claim
13 words
A composition according to claim 3 wherein --X--represents --(CH 2 ) 2 --.
Claim 6
Dependent Claim
9 words
A composition according to claim 1 wherein --X--represents phenylene.
Claim 7
Dependent Claim
17 words
A composition according to claim 1 wherein said acrylic ester-acid is the acrylic ester of β-hydroxypropionic acid.
Claim 8
Dependent Claim
17 words
A composition according to claim 1 wherein said acrylic ester is the methacrylic ester of β-hydroxypropionic acid.
Claim 9
Dependent Claim
17 words
A composition according to claim 1 wherein the acrylic ester-acid is the methacrylic ester of glycolic acid.
Claim 10
Dependent Claim
20 words
A composition according to claim 1 wherein said acrylic ester-acid is present in amount between 5% and 15% by weight.
Claim 11
Dependent Claim
12 words
A composition according to claim 1 wherein the initiator is cumene hydroperoxide.
Claim 12
Dependent Claim
30 words
A composition according to claim 1 containing an effective amount of at least one member of the group consisting of stabilizers, accelerators, thickening agents, inorganic fillers, softening agents and colorants.
Claim 13
Dependent Claim
25 words
A composition according to claim 1 containing a small but effective amount in the range of 0.1% to 5% by weight of hydroquinone as stabilizer.
Claim 14
Dependent Claim
25 words
A composition according to claim 1 containing a small but effective amount in the range of 0.1% to 5% by weight of tributylamine as accelerator.
Claim 15
Dependent Claim
17 words
A composition according to claim 1 containing an effective dissolved amount of polymethyl methacrylate as thickening agent.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-09-12 | 1981-03-14 | 1981-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-12 | 1985-03-14 | 1985-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-12 | 1989-03-14 | 1989-09-13 | $7700.00 | Window Closed / Lapsed |