US4020040A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coloring compositions of powder form
Assignee: DIC Corp
•
Filing: 1974-12-03
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Granted: 1977-04-26
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Expires: 1994-12-03
Abstract
Abstract A coloring composition of powder form comprising (a) a pigment, (b) a vinyl chloride copolymer of an average degree of polymerization of 100 - 2000 and in which the other monomer copolymerized with vinyl chloride is contained in a proportion of not more than 60 weight parts per 100 weight parts of vinyl chloride, and (c) a resin whose viscosity in a 40 weight % dimethylformamide solution is 80 - 7500 centipoises.
Inventors
- 👤 Tsutomu Kattoh
- 👤 Junichi Kumabe
- 👤 Satoshi Hirabayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:15
CPC Classifications
C; C09; C09D; C09D17/00; C08; C08K; C08K5/00; C08K5/0008; C08L; C08L101/00; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C09B; C09B67/00; C09B67/006
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
116 words
A coloring composition of powder form excelling in dispersiveness in solutions of resinous coating materials, comprising (a) a pigment, (b) a vinyl chloride copolymer of an average degree of polymerization of 350-800 and in which the other monomer copolymerized with vinyl chloride is contained in a proportion of 5-30 weight parts per 100 weight parts of vinyl chloride, and (c) a ketonic resin having a molecular weight of from 500-1000 and whose viscosity in a 40 weight % dimethyl-formamide solution is 80-7500 centipoises, said (b) and (c) being present on a weight basis in proportions of 1:0.5-5 said (a) being present in proportions of 20-80% by weight of the sum total of (a), (b) and (c).
Claim 2
Dependent Claim
116 words
A coloring composition of powder form excelling in dispersiveness in solutions of resinous coating materials, comprising (a) a pigment, (b) a vinyl chloride copolymer of an average degree of polymerization of 350-800 and in which the other monomer copolymerized with vinyl chloride is contained in a proportion of 5-30 weight parts per 100 weight parts of vinyl chloride, and (c) a ketonic resin having a molecular weight of from 500-1000 and whose viscosity in a 40 weight % dimethyl-formamide solution is 80-7500 centipoises, said (b) and (c) being present on a weight basis in proportions of 1:0.5-5 said (a) being present in proportions of 20-80% by weight of the sum total of (a), (b) and (c).
Claim 3
Dependent Claim
45 words
The coloring composition of claim 1 wherein said ketonic resin is the reaction product of a ketone selected from the group consisting of acetone, methyl ethyl ketone, and cyclohexanone with an aldehyde selected from the group consisting of formaldehyde, formalin, paraformaldehyde, hexamethylenetetramine, para-aldehyde and acetaldehyde.
Claim 4
Dependent Claim
15 words
The coloring composition of claim 2 which further includes (d) a plasticizer for vinyl chloride.
Claim 5
Dependent Claim
44 words
The coloring composition of claim 1 wherein said other monomer is selected from the group consisting of vinyl acetate, vinyl stearate, ethylene, propylene, ethyl vinyl ether, acrylic acid esters, methacrylic acid esters, vinyl alcohol, maleic anhydride, maleic acid, itaconic acid, acrylonitrile and vinylidene chloride.
References Cited (Backward Citations)
US2507688A
Cited
US3111495A
Cited
US3462390A
Cited
US3694402A
Cited
US3696061A
Cited
US3682854A
Cited
US3772237A
Cited
US3766126A
Cited
US3899473A
Cited
US3830765A
Cited
US3907727A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-04-25 | 1980-10-25 | 1981-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-25 | 1984-10-25 | 1985-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-25 | 1988-10-25 | 1989-04-26 | $7700.00 | Window Closed / Lapsed |