US3719623A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rubbery polymeric mixtures comprising a maleinized type oil
Assignee: Wyeth Holdings LLC
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Filing: 1971-04-01
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Granted: 1973-03-06
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Expires: 1991-04-01
Abstract
Abstract There is provided a composition of matter comprising a rubbery polymeric mixture of an unsaturated glyceride oil ranging from 30 to 60 percent of the over-all resin solids and a copolymer of: (A) a half ester reaction product of an Alpha , Beta -monoethylenically unsaturated dibasic acid, or corresponding anhydride dienophile, and an alcohol containing from four to 22 carbon atoms, said half ester being present in amount ranging from 10 to 55 percent of the over-all resin solids, and (B) a mono-ethylenically unsaturated compound in an amount ranging from 10 to 50 percent of the over-all resin solids.
Inventors
- 👤 W Blank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:33
CPC Classifications
C; C09; C09D; C09D135/00; C09D135/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
123 words
A resinous composition of matter comprising: a rubbery, polymeric mixture of an unsaturated glyceride oil ranging from 30 to 60 percent of the overall resin solids and a copolymer of (A) a half ester reaction product of an Alpha , Beta -monoethylenically unsaturated dibasic acid or corresponding anhydride dienophile and a monohydric alcohol free of nonbenzenoid unsaturation containing from about four to about 22 carbon atoms, said half ester being present in an amount ranging from 10 to 55 percent of the over-all resin solids, and (B) a monoethylenically unsaturated compound selected from the group consisting of styrene, methyl styrene, ethyl styrene, methyl acrylate, methyl methacrylate, acrylonitrile, methacrylonitrile, acrylic acid, and methacrylic acid ranging from 10 to 50 percent of the resin solids.
Claim 2
Dependent Claim
123 words
A resinous composition of matter comprising: a rubbery, polymeric mixture of an unsaturated glyceride oil ranging from 30 to 60 percent of the overall resin solids and a copolymer of (A) a half ester reaction product of an Alpha , Beta -monoethylenically unsaturated dibasic acid or corresponding anhydride dienophile and a monohydric alcohol free of nonbenzenoid unsaturation containing from about four to about 22 carbon atoms, said half ester being present in an amount ranging from 10 to 55 percent of the over-all resin solids, and (B) a monoethylenically unsaturated compound selected from the group consisting of styrene, methyl styrene, ethyl styrene, methyl acrylate, methyl methacrylate, acrylonitrile, methacrylonitrile, acrylic acid, and methacrylic acid ranging from 10 to 50 percent of the resin solids.
Claim 3
Dependent Claim
15 words
The composition according to claim 1 wherein the unsaturated glyceride oil is soya bean oil.
Claim 4
Dependent Claim
14 words
The composition according to claim 1 wherein the unsaturated glyceride oil is safflower oil.
Claim 5
Dependent Claim
13 words
The composition according to claim 1 wherein the anhydride dienophile is maleic anhydride.
Claim 6
Dependent Claim
12 words
The composition according to claim 1 wherein the alcohol is 2-ethyl hexanol.
Claim 7
Dependent Claim
146 words
A process for the preparation of the resinous, rubbery, polymeric composition according to claim 1 wherein the unsaturated glyceride oil is heated with an Alpha , Beta -monoethylenically unsaturated dibasic acid or corresponding anhydride dienophile and a monohydric alcohol free of nonbenzenoid unsaturation containing from four to 22 carbon atoms at a temperature insufficient to effect a Diels-Alder reaction, ranging from about 60*C. to about 200*C., forming substantially in situ the half ester of the dibasic acid component, copolymerizing said half ester with a monoethylenically unsaturated compound selected from the group consisting of styrene, methyl styrene, ethyl styrene, methyl acrylate, methyl methacrylate, acrylonitrile, methacrylonitrile, acrylic acid, and methacrylic acid or mixtures of said compound and recovering said resinous composition, wherein the amount of said oil, half ester, and monoethylenically unsaturated compound being 30- 60 percent, 10-55 percent, and 10-50 percent, respectively, of the overall solids content.
Claim 8
Dependent Claim
14 words
The process according to claim 6 wherein the unsaturated glyceride is soya bean oil.
Claim 9
Dependent Claim
13 words
The process according to claim 6 wherein the unsaturated glyceride is safflower oil.
Claim 10
Dependent Claim
13 words
The process according to claim 6 wherein the anhydride dienophile is maleic anhydride.
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) | 1976-03-05 | 1976-09-04 | 1977-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-05 | 1980-09-04 | 1981-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-05 | 1984-09-04 | 1985-03-06 | $7700.00 | Window Closed / Lapsed |