US4173559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-aqueous polymeric dispersion of alkyl methacrylate and alkyl acrylate copolymers in mixtures of cyclohexane and alcohols and matte coatings produced therefrom
Assignee: EMCO GRAPHICS Inc
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Filing: 1977-06-30
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Granted: 1979-11-06
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Expires: 1997-06-30
Abstract
Abstract A non-aqueous polymeric dispersion of an acrylic or methacrylic polymer in a non-aqueous continuous phase comprised of a mixture of organic liquids, one of which is an alcohol, when applied to a suitable substrate, dries to produce a matte or low gloss coating which can be converted to a glossy coating by heating.
Inventors
- 👤 Charles K. Beck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:03
CPC Classifications
C; C09; C09D; C09D133/00; C09D133/04; C09D133/06; C08; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/12; C08F220/16; C08F220/18; C08F220/1804; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31699
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
74 words
A chemically stable non-aqueous dispersion which has the property of drying to a uniform matte finish upon application to a surface which comprises a copolymer consisting of an alkyl methacrylate and an alkyl acrylate and a mixture of organic liquids including cyclohexane and an alcohol, said copolymer being the disperse phase and said mixture of organic liquids constituting the continuous phase of the non-aqueous dispersion, said mixture including substantially no solvent for said copolymer.
Claim 2
Dependent Claim
74 words
A chemically stable non-aqueous dispersion which has the property of drying to a uniform matte finish upon application to a surface which comprises a copolymer consisting of an alkyl methacrylate and an alkyl acrylate and a mixture of organic liquids including cyclohexane and an alcohol, said copolymer being the disperse phase and said mixture of organic liquids constituting the continuous phase of the non-aqueous dispersion, said mixture including substantially no solvent for said copolymer.
Claim 3
Dependent Claim
19 words
A dispersion according to claim 1 wherein the disperse phase is a copolymer of methyl methacrylate and butyl acrylate.
Claim 4
Dependent Claim
21 words
A dispersion according to claim 1 wherein the disperse phase is a copolymer of methyl methacrylate, butyl methacrylate and butyl acrylate.
Claim 5
Dependent Claim
28 words
A dispersion according to claim 1 wherein the continuous phase is a mixture of cyclohexane and ethanol in a ratio within the range of about 3:1 to 1:3.
Claim 6
Dependent Claim
24 words
A dispersion according to claim 1 wherein the continuous phase is a mixture of cyclohexane and ethanol in a weight ratio of about 1:1.
Claim 7
Dependent Claim
22 words
A matte coating produced by applying a dispersion according to claim 1 to a surface and allowing the dispersion to dry thereon.
Claim 8
Dependent Claim
11 words
A glossy coating produced by heating the coating of claim 6.
Claim 9
Dependent Claim
21 words
A dispersion according to claim 1 wherein neither the continuous phase nor the disperse phase includes effective amounts of stabilizing substances.
Claim 10
Independent Claim
60 words
The method comprising dispersing a copolymer consisting of an alkyl methacrylate and an alkyl acrylate in a mixture of organic liquids including cyclohexane and an alcohol, to form a chemically stable, non-aqueous dispersion in which the copolymer is the disperse phase and the mixture or organic liquids is the continuous phase, said dispersion including substantially no solvent for said copolymer.
Claim 11
Independent Claim
60 words
The method comprising dispersing a copolymer consisting of an alkyl methacrylate and an alkyl acrylate in a mixture of organic liquids including cyclohexane and an alcohol, to form a chemically stable, non-aqueous dispersion in which the copolymer is the disperse phase and the mixture or organic liquids is the continuous phase, said dispersion including substantially no solvent for said copolymer.
Claim 12
Dependent Claim
20 words
The method according to claim 9 wherein the disperse phase is a copolymer consisting of methyl methacrylate and butyl acrylate.
Claim 13
Dependent Claim
22 words
The method according to claim 9 wherein the disperse phase is a copolymer consisting of methyl methacrylate, butyl methacrylate and butyl acrylate.
Claim 14
Dependent Claim
29 words
The method according to claim 9 wherein the continuous phase is a mixture of cyclohexane and ethanol in a ratio within the range of about 3:1 to about 1:3.
Claim 15
Dependent Claim
17 words
The method according to claim 12 wherein the weight ratio of cyclohexane to ethanol is about 1:1.
Claim 16
Dependent Claim
21 words
The method according to claim 9 further comprising applying said dispersion to a surface and allowing the dispersion to dry thereon.
Claim 17
Dependent Claim
19 words
The method according to claim 14 further comprising heating the coating formed during the drying step of claim 14.
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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) | 1982-11-05 | 1983-05-07 | 1983-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-11-05 | 1987-05-07 | 1987-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-11-05 | 1991-05-07 | 1991-11-06 | $7700.00 | Window Closed / Lapsed |