US4292221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of modified petroleum resins
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1980-06-23
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Granted: 1981-09-29
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Expires: 2000-06-23
Abstract
Abstract Carboxyl modified petroleum resins suitable as resins in inks for off-set printing are obtained by heating cyclopentadiene or a comparable monomer with 1 to 15 wt. % of a carboxylic acid which is not alpha - beta , unsaturated at from 270 DEG C. to 290 DEG under sufficient pressure to keep the mixture liquid.
Inventors
- 👤 Alberto Malatesta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:05
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/02; C09D11/10; C09D11/106; C09D11/108; C08; C08F; C08F240/00; Y; Y10; Y10S; Y10S260/00; Y10S260/38
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
81 words
A process for the production of a modified petroleum resin comprising heating a mixture of (A) cyclopentadiene and/or methyl cyclopentadiene and/or the dimers or codimers thereof and (B) from 1 to 15 wt.% of (A) of a saturated or ethylenically unsaturated C 7 or higher fatty acid at a temperature in the range of 270° C. to 290° C. under a sufficient pressure to maintain the mixture in the liquid phase to obtain a resin with an acid number below 20.
Claim 2
Dependent Claim
81 words
A process for the production of a modified petroleum resin comprising heating a mixture of (A) cyclopentadiene and/or methyl cyclopentadiene and/or the dimers or codimers thereof and (B) from 1 to 15 wt.% of (A) of a saturated or ethylenically unsaturated C 7 or higher fatty acid at a temperature in the range of 270° C. to 290° C. under a sufficient pressure to maintain the mixture in the liquid phase to obtain a resin with an acid number below 20.
Claim 3
Dependent Claim
13 words
A modified petroleum resin whenever obtained by a process according to claim 1.
Claim 4
Dependent Claim
18 words
An ink for use in offset printing containing as binder a modified petroleum resin according to claim 2.
Claim 5
Dependent Claim
74 words
A printing ink composition comprising (a) 5 to 30% by weight of a modified petroleum resin as claimed in claim 2 and (b) 5 to 30% by weight of a drying oil (c) 20 to 40% by weight of a pigment, (d) 0 to 10% by weight of an assistant and (e) a solvent being the balance, the components (a), (b), (c), (d) and (e) being based on the total weight of the composition.
References Cited (Backward Citations)
GB1379037A
Cited
GB1369370A
Cited
GB1437966A
Cited
US3984381A
Cited
US4028291A
Cited
US4056498A
Cited
GB1492701A
Cited
US4002585A
Cited
US4048132A
Cited
US4087483A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-09-28 | 1985-03-30 | 1985-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-09-28 | 1989-03-30 | 1989-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-09-28 | 1993-03-30 | 1993-09-29 | $7700.00 | Window Closed / Lapsed |