US4705887A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aromatic polyvinyl ethers and heat curable molding compositions obtained therefrom
Assignee: General Electric Co
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Filing: 1985-04-01
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Granted: 1987-11-10
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Expires: 2005-04-01
Abstract
Abstract Aromatic polyvinylethers and active hydrogen compound reaction products thereof have been found to provide fast heat curable molding compositions when used with various heat activated curing catalysts, for example, diaryliodonium salts in combination with aromatic polyvinylether soluble copper compounds, or dialkylhydroxyarylsulfonium salts in combination with certain organic oxidants.
Inventors
- 👤 James V. Crivello
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:14
CPC Classifications
C; C08; C08G; C08G8/00; C08G8/28; C08G8/36; C08F; C08F16/00; C08F16/12; C08F16/32
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
172 words
An aromatic polyvinylether in the form of a reaction product of (A) polyvinyl compound having the formula, R[GR.sup.1 OC(R.sup.2)═C(R.sup.3).sub.2 ].sub.n, where G is selected from the class consisting of --O--, ##STR40## and mixtures thereof, R is a polyvalent aromatic orgmanic radical, R 1 is a C.sub.(1-8) alkylene radical, R 2 and R 3 are the same or different monovalent radicals selected from hydrogen, halogen and C.sub.(1-8) alkyl radicals, and n is an integer equal to 2-10 inclusive, and (B) from 0.1 to 1 mole, per mole of said polyvinyl compound of an active hydrogen compound selected from the class consisting of (a) carboxylic acids selected from the class consisting of, HO.sub.2 C(--CH.sub.2).sub.4 --CO.sub.2 H, HO.sub.2 C(--CH.sub.2).sub.6 CO.sub.2 H, HO.sub.2 C(--CH.sub.2).sub.8 --CO.sub.2 H, ##STR41## (b) aryl polyols, selected from the class consisting of, ##STR42## (c) alkanols, selected from the class consisting of, ##STR43## sucrose, glucose, cellulose, (d) thiols, selected from the class consisting of, HS--(CH.sub.2).sub.6 --SH, ##STR44## H.sub.2 S, HS--CH.sub.2 --CH.sub.2 --CO.sub.2 H, and (e) silanes, selected from the class consisting of, ##STR45##
Claim 2
Dependent Claim
172 words
An aromatic polyvinylether in the form of a reaction product of (A) polyvinyl compound having the formula, R[GR.sup.1 OC(R.sup.2)═C(R.sup.3).sub.2 ].sub.n, where G is selected from the class consisting of --O--, ##STR40## and mixtures thereof, R is a polyvalent aromatic orgmanic radical, R 1 is a C.sub.(1-8) alkylene radical, R 2 and R 3 are the same or different monovalent radicals selected from hydrogen, halogen and C.sub.(1-8) alkyl radicals, and n is an integer equal to 2-10 inclusive, and (B) from 0.1 to 1 mole, per mole of said polyvinyl compound of an active hydrogen compound selected from the class consisting of (a) carboxylic acids selected from the class consisting of, HO.sub.2 C(--CH.sub.2).sub.4 --CO.sub.2 H, HO.sub.2 C(--CH.sub.2).sub.6 CO.sub.2 H, HO.sub.2 C(--CH.sub.2).sub.8 --CO.sub.2 H, ##STR41## (b) aryl polyols, selected from the class consisting of, ##STR42## (c) alkanols, selected from the class consisting of, ##STR43## sucrose, glucose, cellulose, (d) thiols, selected from the class consisting of, HS--(CH.sub.2).sub.6 --SH, ##STR44## H.sub.2 S, HS--CH.sub.2 --CH.sub.2 --CO.sub.2 H, and (e) silanes, selected from the class consisting of, ##STR45##
Claim 3
Dependent Claim
21 words
A polyvinyl aromatic ether in accordance with claim 1 in the form of a reaction product of glutaric acid and 2,2-bis-(4-vinyloxyethoxypheyl)propane.
References Cited (Backward Citations)
US4394433A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-11-09 | 1991-05-11 | 1991-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-11-09 | 1995-05-11 | 1995-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-11-09 | 1999-05-11 | 1999-11-10 | $7700.00 | Window Closed / Lapsed |