US3625930A
Expired / Lapsed
US
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Anaerobic composition and process for bonding nonporous surfaces, said composition comprising an acrylic monomer a peroxy initiator and a bonding accelerator
Assignee: Henkel Loctite Corp
•
Filing: 1967-12-28
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Granted: 1971-12-07
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Expires: 1987-12-28
Abstract
Abstract The speed of cure of a peroxy initiated acrylate based adhesive composition is markedly increased by pretreating one or more of the surfaces to be bonded with, as an organic bonding accelerator, a compound containing either a OR A GROUP.
Inventors
- 👤 Alex S Toback
- 👤 William E Cass
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:38
CPC Classifications
C; C09; C09J; C09J4/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
31 words
The adhesive system of claim 1, wherein the nitrogen and carbon atoms of the and groups of the organic bonding accelerator are part of the heterocyclic rings of the form and
Claim 2
Dependent Claim
16 words
The adhesive system of claim 2, wherein the heterocyclic ring is a polynuclear heterocyclic ring system.
Claim 3
Dependent Claim
20 words
The adhesive system of claim 1 wherein the organic bonding accelerator is dissolved or dispersed in a volatile organic solvent.
Claim 4
Dependent Claim
13 words
The adhesive system of claim 1 wherein the organic bonding accelerator is mercaptobenzothiazole.
Claim 5
Dependent Claim
13 words
The adhesive system of claim 1 wherein the monomer is of the form:
Claim 6
Dependent Claim
26 words
The adhesive system of claim 6 wherein m is an integer between 1 and about 8, and n is an integer between 1 and about 20.
Claim 7
Dependent Claim
14 words
The adhesive system of claim 6 wherein the monomer is a polyethylene glycol dimethacrylate.
Claim 8
Dependent Claim
13 words
The adhesive system of claim 8 wherein the organic bonding accelerator is mercaptobenzothiazole.
Claim 9
Dependent Claim
28 words
The adhesive system of claim 6 wherein the organic hydroperoxide is of the form R4OOH, wherein R4 is a hydrocarbon group containing up to about 18 carbon atoms.
Claim 10
Dependent Claim
13 words
The adhesive system of claim 10 wherein the organic hydroperoxide is cumene hydroperoxide.
Claim 11
Dependent Claim
101 words
An adhesive composition comprising: as a polymerizable composition, a mixture consisting essentially of (a) a polymerizable polyacrylate ester monomer and (b) a hydroperoxide polymerization initiator therefor; and as a bonding accelerator, (c) an effective amount for accelerated cure of said polymerizable composition of an organic compound having the formula or wherein each of X and Z is H or R, where R is a hydrocarbon group containing up to about 10 carbon atoms, Y is selected from the group consisting of H, R, -SX, -NXZ and -N R, and Q is selected from the group consisting of H, R, -SX and
Claim 12
Dependent Claim
25 words
The adhesive composition of claim 12 wherein the bonding accelerator comprises from about 0.1 percent to about 5.0 percent by weight of the curing composition.
References Cited (Backward Citations)
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Cited
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Cited
US3207815A
Cited
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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) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |