US3607827A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vinylidene fluoride polymer compositions
Assignee: Pennwalt Corp
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Filing: 1969-02-13
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Granted: 1971-09-21
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Expires: 1989-02-13
Abstract
Abstract A resin composition comprising a blend of from about 50 to 99 weight percent of vinylidene fluoride polymer and 1 to 50 weight percent of diallyl phthalate monomer or prepolymer is useful in preparing a coating having high softening point, good heat stability and solvent resistance.
Inventors
- 👤 Andrew Anthony Dukert
- 👤 Alkis Christofas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:21
CPC Classifications
C; C08; C08F; C08F259/00; C08F259/08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/12; C08L; C08L27/00; C08L27/02; C08L27/12; C08L27/16
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
39 words
A coated substrate according to claim 1 wherein the coating composition contains from about 20 to about 50 parts by weight of titanium dioxide per 100 parts by weight of the diallyl phthalate component and the vinylidene fluoride polymer.
Claim 2
Dependent Claim
36 words
A coated substrate according to claim 1 wherein the proportion of the diallyl phthalate component is from about 1.5 to about 12 percent based on the combined weight of said component and the vinylidene fluoride polymer.
Claim 3
Dependent Claim
39 words
A coated substrate according to claim 3 wherein the coating composition contains from about 20 to about 50 parts by weight of titanium dioxide per 100 parts by weight of the diallyl phthalate component and the vinylidene fluoride polymer.
Claim 4
Dependent Claim
70 words
A coating composition comprised of a dispersion in organic liquid solvent of vinylidene fluoride polymer and, in solution in said solvent, a component selected from the group consisting of diallyl phthalate monomer and prepolymers of diallyl phthalate, wherein the proportion of the diallyl phthalate component is from about 1 to about 50 percent based on the combined weight of said component and the vinylidene fluoride polymer and a free-radical catalyst.
Claim 5
Dependent Claim
38 words
A coating composition according to claim 5 having incorporated therein from about 20 to about 50 parts by weight of titanium dioxide pigment per 100 parts by weight of the diallyl phthalate component and the vinylidene fluoride polymer.
Claim 6
Dependent Claim
31 words
A composition according to claim 5 wherein the free-radical catalyst is present in an amount of about 1 to about 6 percent based on the weight of the diallyl phthalate component.
Claim 7
Dependent Claim
36 words
A coating composition according to claim 5 wherein the proportion of the diallyl phthalate component is from about 1.5 TO about 12 percent based on the combined weight of said component and the vinylidene fluoride polymer.
Claim 8
Dependent Claim
37 words
A composition according to claim 8 having incorporated therein from about 20 to about 50 parts by weight of titanium dioxide pigment per 100 parts by weight of the vinylidene fluoride polymer and the diallyl phthalate component.
Claim 9
Dependent Claim
31 words
A composition according to claim 8 wherein the free-radical catalyst is present in an amount of about 1 to about 6 percent based on the weight of the diallyl phthalate component.
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) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |