US4001097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of cured oligoacrylates
Assignee: Toagosei Co Ltd
•
Filing: 1974-08-29
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Granted: 1977-01-04
•
Expires: 1994-08-29
Abstract
Abstract Process for curing an oligoacrylate containing 3-6 acryloyl groups and at least one cyclohexene nucleus in the molecule and having an acryloyl group equivalent of not more than 1000, together with or without at least one other compound copolymerizable therewith, under the action of ionizing radiant rays in a molecular oxygen-containing gas to obtain a cured product from said oligoacrylate.
Inventors
- 👤 Takahisa Ogasawara
- 👤 Yoshimichi Senzaki
- 👤 Hiroyuki Kato
- 👤 Hidemaro Tatemichi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:58
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/46; C08G63/47; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/20
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
100 words
A process for the preparation of a cured oligoacrylate which comprises curing, under the action of ionizing radiation having energy of at least 100 Kev in a molecular oxygen-containing gas, an oligoacrylate containing a) 3-6 acryloyl groups; b) at least one cyclohexene nucleus in the molecule; c) an acryloyl group equivalent of not more than 1000; and d) having a boiling point of not lower than 200° C which oligoacrylate is a reaction product prepared by interesterifying a mixture of: 1. acrylic acid; 2. at least one member selected from the group consisting of tetrahydrophthalic acid and anhydride thereof, and
Claim 2
Dependent Claim
100 words
A process for the preparation of a cured oligoacrylate which comprises curing, under the action of ionizing radiation having energy of at least 100 Kev in a molecular oxygen-containing gas, an oligoacrylate containing a) 3-6 acryloyl groups; b) at least one cyclohexene nucleus in the molecule; c) an acryloyl group equivalent of not more than 1000; and d) having a boiling point of not lower than 200° C which oligoacrylate is a reaction product prepared by interesterifying a mixture of: 1. acrylic acid; 2. at least one member selected from the group consisting of tetrahydrophthalic acid and anhydride thereof, and
Claim 3
Dependent Claim
19 words
at least one member selected from the group consisting of trimethylolpropane and pentaerythritol and then recovering said cured oligoacrylate.
Claim 4
Dependent Claim
19 words
at least one member selected from the group consisting of trimethylolpropane and pentaerythritol and then recovering said cured oligoacrylate.
Claim 5
Dependent Claim
23 words
A process as in claim 1, wherein the curing of the oligoacrylate takes place in the presence of at least one vinylic monomer.
References Cited (Backward Citations)
US3169945A
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US3455802A
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US3455801A
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GB1165622A
Cited
US3483151A
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US3631154A
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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) | 1980-01-04 | 1980-07-05 | 1981-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-01-04 | 1984-07-05 | 1985-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-01-04 | 1988-07-05 | 1989-01-04 | $7700.00 | Window Closed / Lapsed |