US4260531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ink composition for printing on polyolefin
Assignee: AB Dick Co
•
Filing: 1979-07-02
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Granted: 1981-04-07
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Expires: 1999-07-02
Abstract
Abstract A jet printing ink composition for printing on treated or untreated surfaces of polyolefin plastics such as polyethylene and polypropylene in which the ink composition has a pH within the range of 7.0-10.5 and which is formulated to contain 5-20% by weight styrene-acrylic copolymer resin, 3-12 parts by weight plasticizer per 100 parts by weight of resin, 0-20 parts by weight modifying resin per 100 parts by weight of resin, 0.5-6% by weight colorant, 0-10% by weight evaporation retardant, the remainder being water and C1-C3 alcohol in the ratio of 80-10 parts by weight alcohol to 20-90 parts by weight water.
Inventors
- 👤 Joseph Wachtel
- 👤 Josephine Aguilar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:49
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
98 words
A jet printing ink composition having a pH within the range of 7.0-10.5 in which the printing ink composition contains 5-20% by weight styrene-acrylic copolymer resin, 3-12 parts by weight plasticizer per 100 parts by weight resin, 0-20 parts by weight modifying resin per 100 parts by weight of resin, 0.5-6% by weight colorant, 0-10% by weight evaporation retardant, the remainder being water and alcohol in the ratio of 80-10 parts by weight alcohol to 20-90 parts by weight water, in which the alcohol is selected from the group consisting of methanol, ethanol, isopropyl alcohol and n-propyl alcohol.
Claim 2
Dependent Claim
98 words
A jet printing ink composition having a pH within the range of 7.0-10.5 in which the printing ink composition contains 5-20% by weight styrene-acrylic copolymer resin, 3-12 parts by weight plasticizer per 100 parts by weight resin, 0-20 parts by weight modifying resin per 100 parts by weight of resin, 0.5-6% by weight colorant, 0-10% by weight evaporation retardant, the remainder being water and alcohol in the ratio of 80-10 parts by weight alcohol to 20-90 parts by weight water, in which the alcohol is selected from the group consisting of methanol, ethanol, isopropyl alcohol and n-propyl alcohol.
Claim 3
Dependent Claim
106 words
A printing ink composition as claimed in claim 1 in which the styrene-acrylic copolymer resin is present in an amount within the range of 8.5-11% by weight, the plasticizer is present in an amount within the range of 4-7 parts by weight per 100 parts by weight of resin, the modifying resin is present in an amount within the range of 0-10 parts by weight per 100 parts by weight of resin, the colorant is present in an amount within the range of 1-4% by weight of the ink composition, and the evaporation retardant is present in an amount within the range of 5.0-7.5% by weight.
Claim 4
Dependent Claim
35 words
A printing ink composition as claimed in claim 1 in which the plasticizer is selected from the group consisting of alkyl phthalates, o, p, toluene sulphonamides, toluene sulfonamide formaldehyde resin, alkyl phosphates and alkyl glycolates.
Claim 5
Dependent Claim
33 words
A printing ink composition as claimed in claim 1 in which the modifying resin is selected from the group consisting of polyvinyl acetate copolymer, styrene maleic anhydride copolymer, rosin esters and natural resins.
Claim 6
Dependent Claim
16 words
A printing ink composition as claimed in claim 1 in which the modifying resin is polyvinylpyrrolidone.
Claim 7
Dependent Claim
46 words
A printing ink composition as claimed in claim 1 in which the colorant is an acid, basic, or solvent dyestuff which is soluble in water and has a tolerance for alcohol or which is soluble in alcohol and has a tolerance for moderate amounts of water.
Claim 8
Dependent Claim
31 words
A printing ink composition as claimed in claim 1 in which the retardant is selected from the group consisting of ethylene glycol mono alkyl ether and diethylene glycol mono alkyl ether.
Claim 9
Dependent Claim
27 words
A printing ink composition as claimed in claim 1 in which ammonium hydroxide is present for the solubility and adjustment of pH to within the desired range.
Claim 10
Dependent Claim
29 words
A printing ink composition as claimed in claim 1 in which an alkali metal hydroxide is present for solubility and the adjustment of pH to within the desired range.
Claim 11
Dependent Claim
28 words
A printing ink composition as claimed in claim 1 in which an organic amine is present for the solubility and adjustment of pH to within the desired range.
Claim 12
Dependent Claim
16 words
A printing ink composition as claimed in claim 1 which includes morpholine as the organic amine.
Claim 13
Dependent Claim
21 words
A printing ink composition as claimed in claim 1 in which the styrene-acrylic copolymer resin is a styrene-acrylic acid copolymer resin.
References Cited (Backward Citations)
US3328325A
Cited
US3903034A
Cited
US4163001A
Cited
US4153593A
Cited
US4059554A
Cited
US4111878A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-04-06 | 1984-10-06 | 1985-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-06 | 1988-10-06 | 1989-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-06 | 1992-10-06 | 1993-04-07 | $7700.00 | Window Closed / Lapsed |