US3676398A
Expired / Lapsed
US
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Polymerizable crosslinkable esters of polyepoxy compounds
Assignee: PPG Industries Inc
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Filing: 1968-11-25
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Granted: 1972-07-11
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Expires: 1988-11-25
Abstract
Abstract Crosslinkable derivatives containing acrylic ester linkages are prepared by the reaction of a polyepoxide (compounds having a plurality of GROUPS) WITH AN ACRYLIC ANHYDRIDE OF A MONOCARBOXYLIC ACID, CH2=C(Y)COOOCR''. The derivatives are crosslinked readily by ultraviolet light and ionizing radiations as well as by chemical initiators, and can be used for the preparation of homopolymers and copolymers. They find utility as casting, potting, laminating and molding compounds, as coatings and impregnants, electrical insulators and the like.
Inventors
- 👤 Alelio Gaetano Francis D
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:07
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/14; C08G59/1433; C08G59/1438; C08G59/1455; C08G59/1461; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31515; Y10T428/31518
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
18 words
The process of claim 1 in which at least two equivalents of CH2=C(Y)COOOCR are reacted per polyepoxide molecule.
Claim 2
Dependent Claim
86 words
A product having the formula wherein n has a numberical value of at least 2 and Q is the residual organic moiety of the polyepoxide wherein Y is a member selected from the class consisting of H, CH3, Cl, Br and CN; R'''' is selected from the class consisting of H, a hydrocarbon group of one to 20 carbon atoms and halogenated derivatives of said group; and R'''' is selected from the class consisting of hydrogen and a hydrocarbon radical of one to 10 carbon atoms.
Claim 3
Dependent Claim
10 words
A thermoset polymer comprising the polymerization product of claim 3.
Claim 4
Dependent Claim
10 words
The process of claim 2 in which the polyepoxide is
Claim 5
Dependent Claim
22 words
The process of claim 2 in which the polyepoxide is wherein n is an integer having a value of 0 to 10.
Claim 6
Dependent Claim
11 words
The process of claim 2 in which the polyepoxide is vinylcyclohexenediepoxide.
Claim 7
Dependent Claim
23 words
The process of claim 2 in which the polyepoxide is in which Ar is an arylene group containing six to 12 carbon atoms.
Claim 8
Dependent Claim
10 words
The process of claim 2 in which the anhydride is
Claim 9
Dependent Claim
16 words
The process of claim 2 in which the anhydride is where X represents Cl and Br.
Claim 10
Dependent Claim
10 words
The process of claim 8 in which Y is H.
Claim 11
Dependent Claim
10 words
The process of claim 9 in which Y is H.
Claim 12
Dependent Claim
25 words
The process of claim 2 which comprises 5 to 95 percent by weight of at least one copolymerizable monomer having at least one terminal group.
Claim 13
Dependent Claim
5 words
A compound having the formula
Claim 14
Dependent Claim
5 words
A compound having the formula
Claim 15
Dependent Claim
10 words
The compound of claim 14 in which R'' is CH3.
Claim 16
Dependent Claim
10 words
The compound of claim 15 in which R'' is CH3.
Claim 17
Dependent Claim
21 words
The thermoset polymerized product of a polymerizable mass comprising 5 to 95 percent by weight of the compound of claim 16.
Claim 18
Dependent Claim
21 words
The thermoset polymerized product of a polymerizable mass comprising 5 to 95 percent by weight of the compound of claim 17.
Claim 19
Dependent Claim
33 words
The process of claim 1 which comprises performing the reaction in the temperature range of 10* to 110* C. in the presence of at least 0.01 percent by weight of a tertiary base.
Claim 20
Dependent Claim
33 words
The process of claim 20 in which the reaction is performed in the presence of 5 to 95 percent by weight of at least one copolymerizable monomer containing at least one terminal group.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |