US3760034A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Graft copolymers of lactone polyesters
Assignee: Union Carbide Corp
•
Filing: 1971-01-26
•
Granted: 1973-09-18
•
Expires: 1991-01-26
Abstract
Abstract Various ethylenically unsaturated monomers can be graft copolymerized onto lactone polyesters, such as, homo-polymers of Epsilon -caprolactone or copolymers of Epsilon -caprolactone and Epsilon -alkyl- Epsilon -caprolactones at temperatures between 90* and 150* C. Preferred vinyl monomers include acrylic acid, methacrylic acid, acrylic and methacrylic acid alkyl esters, styrene, vinyl halides, vinylidene halides, alkali metal ar-(methacryloxyethoxy) or -(acryloxyethoxy) benzene sulfonates, alkali metal benzene sulfonates, N-methyl-N-vinyl acetamide, dialkylaminoalkyl acrylic and methacrylic acid esters, vinyl pyridines, acrylonitrile, and vinyl esters of aliphatic acids.
Inventors
- 👤 F Critchfield
- 👤 J Koleske
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:01
CPC Classifications
C; C08; C08F; C08F283/00; C08F283/02; C08L; C08L51/00; C08L51/08
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
13 words
Composition claimed in claim 1 wherein the lactone polyester is poly( epsilon -caprolactone).
Claim 2
Dependent Claim
19 words
Composition claimed in claim 1 wherein the lactone polyester is a copolymer of epsilon -caprolactone and epsilon -methyl-epsilon -caprolactone.
Claim 3
Dependent Claim
11 words
Composition claimed in claim 1 wherein the monomer is acrylic acid.
Claim 4
Dependent Claim
11 words
Composition claimed in claim 1 wherein the monomer is methacrylic acid.
Claim 5
Dependent Claim
21 words
Composition claimed in claim 1 wherein the monomer is an alkyl ester of an Alpha , Beta -ethylenically unsaturated carboxylic acid.
Claim 6
Dependent Claim
12 words
Composition claimed in claim 6 wherein the alkyl ester is methyl methacrylate.
Claim 7
Dependent Claim
12 words
Composition claimed in claim 6 wherein the alkyl ester is butyl acrylate.
Claim 8
Dependent Claim
11 words
Composition claimed in claim 1 wherein the monomer is vinyl acetate.
Claim 9
Dependent Claim
10 words
Composition claimed in claim 1 wherein the monomer is acrylonitrile.
Claim 10
Dependent Claim
11 words
Composition claimed in claim 1 wherein the monomer is dimethylaminoethyl methacrylate.
Claim 11
Dependent Claim
10 words
Composition claimed in claim 1 Wherein the monomer is styrene.
Claim 12
Dependent Claim
12 words
Composition claimed in claim 1 wherein the monomer is a vinyl pyridine.
Claim 13
Dependent Claim
12 words
Composition claimed in claim 1 wherein the monomer is a vinyl halide.
Claim 14
Dependent Claim
12 words
Composition claimed in claim 14 wherein the vinyl halide is vinyl chloride.
Claim 15
Dependent Claim
12 words
Composition claimed in claim 1 wherein the monomer is a vinylidene halide.
Claim 16
Dependent Claim
12 words
Composition claimed in claim 16 wherein the vinylidene halide is vinylidene chloride.
Claim 17
Dependent Claim
14 words
Composition claimed in claim 1 wherein the monomer is an alkali metal vinyl sulfonate.
Claim 18
Dependent Claim
14 words
Composition claimed in claim 1 wherein the monomer is a sodium ar-(methacryloxyethoxy) benzene sulfonate.
Claim 19
Dependent Claim
14 words
Composition claimed in claim 1 wherein the monomer is a sodium ar-(acryloxyethoxy) benzene sulfonate.
Claim 20
Dependent Claim
11 words
Composition claimed in claim 1 wherein the monomer is N-methyl-N-vinyl acetamide.
References Cited (Backward Citations)
CA639619A
Cited
US3169945A
Cited
US3592877A
Cited
US3379794A
Cited
US3418393A
Cited
US3655631A
Cited
US3598799A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-17 | 1977-03-19 | 1977-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-17 | 1981-03-19 | 1981-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-17 | 1985-03-19 | 1985-09-18 | $7700.00 | Window Closed / Lapsed |