US4429088A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesive composition
Assignee: AMERICAN CHEMICAL & ENGINEERING Co A CT CORP
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Filing: 1982-03-08
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Granted: 1984-01-31
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Expires: 2002-03-08
Abstract
Abstract An adhesive composition, capable of functioning either aerobically or anaerobically, includes an acrylate monomer and a suitable elastomeric filler, together with an aromatic perester catalyst and a dibasic acid capable of cyclic tautomerism.
Inventors
- 👤 Andrew G. Bachmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:56
CPC Classifications
C; C09; C09J; C09J175/00; C09J175/04; C08; C08F; C08F299/00; C08F299/02; C08F299/022; C08F299/024; C09J4/00; Y; Y10; Y10S; Y10S525/00; Y10S525/92
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
115 words
In an adhesive composition containing an acrylic ester capable of free-radical polymerization to produce, upon polymerization thereof, an adhesive solid, the improvement comprising: a latent catalyst system including, in amounts based upon the weight of the monomer, about 1 to 10 parts per hundred of an aromatic perester free-radical precursor, about 0.5 to 10 parts per hundred of an organic acid capable of cyclic tautomerism, and up to about 500 parts per million of a soluble compound of a transition metal cure accelerator, said composition being free-from any organic hydroperoxide catalyst, being stable against polymerization regardless of the presence or absence of oxygen, and being readily cured by reaction with an amine/aldehyde adduct curing agent.
Claim 2
Dependent Claim
115 words
In an adhesive composition containing an acrylic ester capable of free-radical polymerization to produce, upon polymerization thereof, an adhesive solid, the improvement comprising: a latent catalyst system including, in amounts based upon the weight of the monomer, about 1 to 10 parts per hundred of an aromatic perester free-radical precursor, about 0.5 to 10 parts per hundred of an organic acid capable of cyclic tautomerism, and up to about 500 parts per million of a soluble compound of a transition metal cure accelerator, said composition being free-from any organic hydroperoxide catalyst, being stable against polymerization regardless of the presence or absence of oxygen, and being readily cured by reaction with an amine/aldehyde adduct curing agent.
Claim 3
Dependent Claim
106 words
As a nonanaerobic adhesive composition, the combination of: a monomeric acrylic ester capable of free-radical polymerization to produce, upon polymerization thereof, an adhesive solid, and a latent catalyst system comprising, in amounts based upon the weight of said ester, about 1 to 10 parts per hundred of an aromatic perester free-radical precursor, about 0.5 to 10 parts per hundred of an organic acid capable of cyclic tautomerism, and up to about 500 parts per million of a soluble compound of a transition metal cure accelerator, said composition being free from any organic hydroperoxide catalyst, and being readily cured by reaction with an amine/aldehyde adduct curing agent.
Claim 4
Dependent Claim
106 words
As a nonanaerobic adhesive composition, the combination of: a monomeric acrylic ester capable of free-radical polymerization to produce, upon polymerization thereof, an adhesive solid, and a latent catalyst system comprising, in amounts based upon the weight of said ester, about 1 to 10 parts per hundred of an aromatic perester free-radical precursor, about 0.5 to 10 parts per hundred of an organic acid capable of cyclic tautomerism, and up to about 500 parts per million of a soluble compound of a transition metal cure accelerator, said composition being free from any organic hydroperoxide catalyst, and being readily cured by reaction with an amine/aldehyde adduct curing agent.
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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) | 1987-01-30 | 1987-08-01 | 1988-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-30 | 1991-08-01 | 1992-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-30 | 1995-08-01 | 1996-01-31 | $7700.00 | Window Closed / Lapsed |