US4376839A
Expired / Lapsed
US
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Heat stable, polymer-forming composition
Assignee: Bayer Corp
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Filing: 1980-01-21
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Granted: 1983-03-15
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Expires: 2000-01-21
Abstract
Abstract A heat-stable, polymer-forming composition of a polymerizable material, a transition metal compound, a polymer chain terminator, and, optionally, a preventive antioxidant is disclosed as well as particular uses of such composition.
Inventors
- 👤 Miachael J. Malin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:50
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/28; G01N1/36; C; C09; C09D; C09D4/00; Y; Y10; Y10S; Y10S522/00; Y10S522/901
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
72 words
A heat-stable, polymer-forming adhesive composition comprising: (a) a polymerizable vinyl monomer containing at least one reactive double bond; (b) a transition metal compound; and (c) a polymer chain terminating antioxidant, said polymer chain terminating antioxidant being a p-alkoxyphenol of the formula: ##STR7## wherein R 1 and R 2 are each selected from H, phenyl or t-butyl, and X is alkyl or alkyloxy, said alkyl group containing from 1 to 4 carbon atoms.
Claim 2
Dependent Claim
72 words
A heat-stable, polymer-forming adhesive composition comprising: (a) a polymerizable vinyl monomer containing at least one reactive double bond; (b) a transition metal compound; and (c) a polymer chain terminating antioxidant, said polymer chain terminating antioxidant being a p-alkoxyphenol of the formula: ##STR7## wherein R 1 and R 2 are each selected from H, phenyl or t-butyl, and X is alkyl or alkyloxy, said alkyl group containing from 1 to 4 carbon atoms.
Claim 3
Dependent Claim
15 words
A composition as claimed in claim 1 which includes as component (d) a preventive antioxidant.
Claim 4
Dependent Claim
24 words
A composition as claimed in claim 1 wherein said transition metal compound is selected from chromium, manganese, nickel, iron, cobalt or copper metal salts.
Claim 5
Dependent Claim
17 words
A composition as claimed in claim 3 wherein said transition metal compound is a ferric metal salt.
Claim 6
Dependent Claim
15 words
A composition as claimed in claim 4 wherein said ferric metal salt is ferric chloride.
Claim 7
Dependent Claim
17 words
A composition as claimed in claim 1 wherein said p-alkoxyphenol is selected from p-methoxyphenol, 2,6-di-t-butyl-4-methoxyphenol or 2,6-diphenyl-4-methoxyphenol.
Claim 8
Dependent Claim
47 words
A composition as claimed in claim 2 wherein said preventive antioxidant is a compound of the formula: (Y--CH.sub.2 --CH.sub.2).sub.2 S wherein Y is selected from ##STR8## in which Z is H, NO 2 ; or Y is ##STR9## in which R is alkyl containing from 4-18 carbons.
Claim 9
Dependent Claim
13 words
A composition as claimed in claim 7 wherein said preventive antioxidant is dilaurylthiodipropionate.
Claim 10
Dependent Claim
15 words
A composition as claimed in claim 1 which is essentially free of an inert solvent.
Claim 11
Dependent Claim
13 words
A composition as claimed in claim 1 wherein a photo initiator is included.
Claim 12
Dependent Claim
13 words
A composition as claimed in claim 1 wherein a thermal initiator is included.
Claim 13
Dependent Claim
20 words
A composition as claimed in claim 1 which comprises: (a) ethoxylated bisphenol A dimethacrylate; (b) ferric chloride; and (c) p-methoxyphenol.
Claim 14
Dependent Claim
11 words
A composition as claimed in claim 12 wherein dilaurylthiodipropionate is included.
Claim 15
Dependent Claim
15 words
A composition as claimed in claim 1 wherein said vinyl monomer is ethoxylated bisphenol-A dimethacrylate.
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) | 1986-03-14 | 1986-09-13 | 1987-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-03-14 | 1990-09-13 | 1991-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-03-14 | 1994-09-13 | 1995-03-15 | $7700.00 | Window Closed / Lapsed |