US4067841A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vinyl chloride interpolymer coating composition
Assignee: Stauffer Chemical Co
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Filing: 1975-10-06
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Granted: 1978-01-10
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Expires: 1995-10-06
Abstract
Abstract A process for coating a material, e.g. a vinyl material, to improve its wear resistance and the coated article produced thereby is disclosed. The coating comprises an interpolymer comprising from about 50-95% by weight polyvinyl chloride and from about 5-50% by weight of an acrylate dissolved in an organic solvent.
Inventors
- 👤 Joseph A. Aurichio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:24
CPC Classifications
C; C09; C09D; C09D127/00; C09D127/02; C09D127/04; C09D127/06; C08; C08F; C08F259/00; C08F259/02; C08F259/04; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31909; Y10T428/31928
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
80 words
A coating composition adapted to be used to coat a material which comprises (a) an organic solvent, and (b) an interpolymer formed by polymerizing an acrylate in the presence of a vinyl chloride containing polymer formed by suspension polymerization, said interpolymer containing from about 50% to 95%, by weight, vinyl chloride polymer and from about 5% to 50%, by weight, of an acrylate, said vinyl chloride containing polymer having a particle size of from about 5 to about 150 microns.
Claim 2
Dependent Claim
80 words
A coating composition adapted to be used to coat a material which comprises (a) an organic solvent, and (b) an interpolymer formed by polymerizing an acrylate in the presence of a vinyl chloride containing polymer formed by suspension polymerization, said interpolymer containing from about 50% to 95%, by weight, vinyl chloride polymer and from about 5% to 50%, by weight, of an acrylate, said vinyl chloride containing polymer having a particle size of from about 5 to about 150 microns.
Claim 3
Dependent Claim
17 words
A composition as claimed in claim 1 wherein the interpolymer comprises about 65-75% by weight polyvinyl chloride.
Claim 4
Dependent Claim
18 words
A composition as claimed in claim 1 wherein the interpolymer comprises about 25-35% by weight of the acrylate.
Claim 5
Dependent Claim
41 words
A composition as claimed in claim 1 wherein the acrylate is selected from the group consisting of the C 1 -C 4 alkyl methacrylates, the glycidyl esters of acrylic and methacrylic acid, and the C 1 14 C 12 alkyl acrylates.
Claim 6
Dependent Claim
20 words
A composition as claimed in claim 1 wherein methyl methacrylate comprises greater than about 50% by weight of the acrylate.
Claim 7
Dependent Claim
24 words
A composition as claimed in claim 1 wherein the acrylate comprises about 86-93% by weight methyl methacrylate and about 7-14% by weight n-butyl acrylate.
Claim 8
Dependent Claim
22 words
A composition as claimed in claim 1 wherein the coating composition comprises from about 5% to 35% by weight of the interpolymer.
Claim 9
Dependent Claim
30 words
A composition as claimed in claim 1 wherein the organic solvent is selected from the group consisting of methyl ethyl ketone, methyl isobutyl ketone, acetone, cyclohexanone, tetrahydrofuran and mixtures thereof.
Claim 10
Dependent Claim
37 words
A composition as claimed in claim 1 wherein the interpolymer has a particle size of from about 10 microns to a maximum value wherein not more than about 15% by weight are larger than about 150 microns.
Claim 11
Dependent Claim
17 words
A composition as claimed in claim 1 wherein the interpolymer is present at from 10% to 20%.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-01-09 | 1981-07-11 | 1982-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-09 | 1985-07-11 | 1986-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-09 | 1989-07-11 | 1990-01-10 | $7700.00 | Window Closed / Lapsed |