US3770602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation crosslinkable polymers prepared by reacting a polyepoxy compound with an acrylic anhydride of a monocarboxylic acid
Assignee: PPG Industries Inc
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Filing: 1972-04-13
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Granted: 1973-11-06
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Expires: 1992-04-13
Abstract
Abstract Crosslinkable derivatives containing acrylic ester linkages are prepared by the reaction of a polyepoxide (compounds having a plurality of
Inventors
- 👤 Alelio Gaetano Francis D
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:02
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/42; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/20; C08G59/14; C08G59/1433; C08G59/1438; C08G59/1455; C08G59/1461; C08G59/20; Y; Y10; Y10S; Y10S525/00; Y10S525/922; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
9 words
subjecting the reaction product to actinic light to cure.
Claim 2
Dependent Claim
18 words
The process of claim 1 wherein at least two equivalents of CH2 C(Y)COOOCR'' are reacted per polyepoxide molecule.
Claim 3
Dependent Claim
9 words
subjecting the reaction product to ionizing irradiation to cure.
Claim 4
Dependent Claim
11 words
The process of claim 1 wherein the product has the formula
Claim 5
Dependent Claim
24 words
The process of claim 1 which Comprises 5 to 95 percent by weight of at least one copolymerizable monomer having at least one terminal
Claim 6
Dependent Claim
11 words
The process for producing a crosslinked product comprising the steps of
Claim 7
Dependent Claim
18 words
The process of claim 5 wherein at least two equivalents of CH2 C(Y)COOOCR'' are reacted per polyepoxide molecule.
Claim 8
Dependent Claim
11 words
The process of claim 5 wherein the product has the formula
Claim 9
Dependent Claim
24 words
The process of claim 5 which comprises 5 to 95 percent by weight of at least one copolymerizable monomer having at least one terminal
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) | 1976-11-05 | 1977-05-07 | 1977-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-05 | 1981-05-07 | 1981-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-05 | 1985-05-07 | 1985-11-06 | $7700.00 | Window Closed / Lapsed |