Patent US3716511A successfully refreshed from Google Patents.
US3716511A
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US
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Coating composition of an aqueous dispersion of copolymeric vinylidene chloride
Assignee: EIDP Inc
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Filing: 1970-12-08
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Granted: 1973-02-13
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Expires: 1990-12-08
Abstract
Abstract A coating composition comprising a dispersion of copolymer of vinylidene chloride wherein the copolymer is of between about 60 parts and about 95 parts by weight of vinylidene chloride in a dispersion medium of alcohol and a nitrogenous base; and a process for coating film structures of organic thermoplastic polymeric material characterized by applying the coating composition to a film structure and thereafter drying the coated film structure.
Inventors
- 👤 V Haskell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:38
CPC Classifications
C; C09; C09D; C09D127/00; C09D127/02; C09D127/04; C09D127/08
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
85 words
A composition comprising an aqueous dispersion of copolymer of vinylidene chloride and at least one other ethylenically unsaturated monomer copolymerizable therewith in a dispersion medium of at least one alcohol selected from methanol, ethanol and isopropanol and at least one nitrogenous base selected from ammonia; pyridine; amines selected from methyl amine, ethyl amine, and propylamine and their corresponding dialkyl amines; and ethyleneimine, the nitrogenous base being present in an amount to provide a stoichiometric excess of the base over the acid present in the copolymer.
Claim 2
Dependent Claim
85 words
A composition comprising an aqueous dispersion of copolymer of vinylidene chloride and at least one other ethylenically unsaturated monomer copolymerizable therewith in a dispersion medium of at least one alcohol selected from methanol, ethanol and isopropanol and at least one nitrogenous base selected from ammonia; pyridine; amines selected from methyl amine, ethyl amine, and propylamine and their corresponding dialkyl amines; and ethyleneimine, the nitrogenous base being present in an amount to provide a stoichiometric excess of the base over the acid present in the copolymer.
Claim 3
Dependent Claim
41 words
A composition of claim 1 wherein the copolymer is obtained from between about 65 parts and about 95 parts by weight of vinylidene chloride, and between about 5 parts and about 35 parts by weight of said other ethylenically unsaturated monomer.
Claim 4
Dependent Claim
18 words
A composition of claim 2 wherein the ethylenically unsaturated monomer comprises at least one acrylonitrile and methyl methacrylate.
Claim 5
Dependent Claim
18 words
A composition of claim 3 wherein the monomer additionally comprises monomer selected from acrylic acid and itaconic acid.
Claim 6
Dependent Claim
16 words
A composition of claim 4 wherein the alcohol is selected from ethyl alcohol and methyl alcohol.
Claim 7
Dependent Claim
11 words
A composition of claim 5 wherein the nitrogenous base is ammonia.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-13 | 1976-08-14 | 1977-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-13 | 1980-08-14 | 1981-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-13 | 1984-08-14 | 1985-02-13 | $7700.00 | Window Closed / Lapsed |