US3933857A
Expired / Lapsed
US
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Polymerizable cycloacetal resinous composition
Assignee: Resonac Holdings Corp
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Filing: 1973-10-18
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Granted: 1976-01-20
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Expires: 1993-10-18
Abstract
Abstract This invention relates to a polymerizable cycloacetal resinous composition, characterized by reacting 1 equivalent of diallylidenepentaerythritol (I) with 0.8 - 2.0 equivalents of polyhydric alcohol-unsaturated monocarboxylic acid ester mono-ol (II) having both a hydroxyl group and a polymerizable or copolymerizable unsaturated bond in the same molecule, with or without a solvent, in the presence of a polymerization inhibitor and addition reaction catalyst.
Inventors
- 👤 Toshiaki Hanyuda
- 👤 Eiichiro Takiyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:14
CPC Classifications
C; C07; C07D; C07D493/00; C07D493/02; C07D493/10; C08; C08L; C08L63/00; C08L63/10; C08L67/00; C08L67/06; Y; Y10; Y10S; Y10S525/00; Y10S525/922
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
59 words
A polymerizable cycloacetal composition, prepared by reacting 1 equivalent of (I) diallylidenepentaerythritol with 0.8- 2.0 equivalents of (II) polyhydric alcohol-unsaturated monocarboxylic acid ester having one alcoholic hydroxyl group and at least one substituent selected from methacrylyl, acrylyl and crotonyl groups, with or without a solvent, in the presence of a free radical polymerization inhibitor and an addition reaction catalyst.
Claim 2
Dependent Claim
59 words
A polymerizable cycloacetal composition, prepared by reacting 1 equivalent of (I) diallylidenepentaerythritol with 0.8- 2.0 equivalents of (II) polyhydric alcohol-unsaturated monocarboxylic acid ester having one alcoholic hydroxyl group and at least one substituent selected from methacrylyl, acrylyl and crotonyl groups, with or without a solvent, in the presence of a free radical polymerization inhibitor and an addition reaction catalyst.
Claim 3
Dependent Claim
36 words
A polymerizable cycloacetal composition according to claim 1, wherein said polyhydric alcohol-unsaturated monocarboxylic acid ester (II) is selected from the group consisting of hydroxyethyl methacrylate, hydroxypropylmethacrylate, hydroxyethylacrylate, hydroxypropylacrylate, hydroxyethylcrotonate, hydroxypropylcrotonate, trimethylolpropanedimethacrylate, trimethylolpropanediacrylate, trimethylolethanedimethacrylate, trimethylolethanediacrylate and glycerinedimethacrylate.
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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) | 1979-01-19 | 1979-07-21 | 1980-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-19 | 1983-07-21 | 1984-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-19 | 1987-07-21 | 1988-01-20 | $7700.00 | Window Closed / Lapsed |