US4028119A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing resins for use in printing ink
Assignee: Mitsui Chemicals Inc
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Filing: 1975-02-04
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Granted: 1977-06-07
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Expires: 1995-02-04
Abstract
Abstract A process for preparing resins for use in printing inks, which comprises co-polymerizing at least 50% by weight of dicyclopentadiene and not more than 50% by weight of another cationically polymerizable monomer in the presence of a Friedel-Crafts polymerization catalyst, adding 1 to 20% by weight, based on the weight of the resulting co-polymer, of an alpha , beta -unsaturated carboxylic acid or its anhydride to the resulting copolymer, and then esterifying the resulting adduct at last partially with a polyhydric alcohol.
Inventors
- 👤 Koichi Yamada
- 👤 Teijiro Morimoto
- 👤 Yoshioki Yoshioka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:55
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/14; C09; C09D; C09D11/00; C09D11/02; C09D11/10; C09D11/106; C09D11/108; C08F2810/00; C08F2810/20
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
109 words
A process for preparing resins for use in printing inks, which comprises a. copolymerizing not less than 50% by weight of dicyclopentadiene and not more than 50% by weight of at least one other cationically polymerizable monomer having at least one double bond at a temperature ranging from -20 to 100° C. in the presence of a Friedel-Crafts polymerization catalyst resulting in a copolymer, b. reacting 1 to 20% by weight, based on the weight of the resulting copolymer, of an α,β-unsaturated carboxylic acid or its anhydride with the resulting copolymer, and then c. esterifying the resulting adduct to a degree of 20 to 100% with a polyhydric alcohol.
Claim 2
Dependent Claim
109 words
A process for preparing resins for use in printing inks, which comprises a. copolymerizing not less than 50% by weight of dicyclopentadiene and not more than 50% by weight of at least one other cationically polymerizable monomer having at least one double bond at a temperature ranging from -20 to 100° C. in the presence of a Friedel-Crafts polymerization catalyst resulting in a copolymer, b. reacting 1 to 20% by weight, based on the weight of the resulting copolymer, of an α,β-unsaturated carboxylic acid or its anhydride with the resulting copolymer, and then c. esterifying the resulting adduct to a degree of 20 to 100% with a polyhydric alcohol.
Claim 3
Dependent Claim
28 words
The process of claim 1 wherein at least 60% by weight of the dicyclopentadiene and not more than 40% by weight of the cationically polymerizable monomer are used.
Claim 4
Dependent Claim
41 words
The process of claim 1 wherein a fraction having a boiling point of 140° to 280° C. and containing 50 to 100% by weight of aromatic hydrocarbons obtained in the cracking or reforming of petroleum is used as said cationically monomer.
Claim 5
Dependent Claim
32 words
The process of claim 1 wherein 1.5 to 15% by weight, based on the weight of the polymer, of the α,β-unsaturated carboxylic acid or its anhydride is added to the resulting polymer.
Claim 6
Dependent Claim
16 words
The process of claim 1 wherein said α,β-unsaturated carboxylic acid contains 3 to 5 carbon atoms.
Claim 7
Dependent Claim
19 words
The process of claim 5 wherein said α,β-unsaturated carboxylic acid or its anhydride is maleic acid or its anhydride.
Claim 8
Dependent Claim
20 words
The process of claim 1 wherein said polyhydric alcohol is an aliphatic polyhydric alcohol containing 2 to 6 carbon atoms.
Claim 9
Dependent Claim
21 words
The process of claim 7 wherein said polyhydric alcohol is selected from the group consisting of diethylene glycol and triethylene glycol.
Claim 10
Dependent Claim
24 words
The process of claim 1 wherein the esterification with the polyhydric alcohol is carried out until the degree of esterification reaches 40 to 90%.
Claim 11
Dependent Claim
50 words
The process of claim 3 wherein said fraction has the following composition: ______________________________________
styrene, indene and
derivatives thereof
30 to 60% by weight
olefins 5 to 10% by weight
aromatics 20 to 40% by weight
paraffins and naphthenes
10 to 20% by weight
diolefins 0 to 5% by weight.
______________________________________
Claim 12
Dependent Claim
20 words
The process of claim 1 wherein said copolymerization is carried out at a temperature ranging from 20° to 80° C.
Claim 13
Dependent Claim
31 words
The process of claim 1 wherein said reaction of the copolymer with the α,β-unsaturated carboxylic acid or its anhydride is carried out at a temperature ranging from 100° to 300° C.
Claim 14
Dependent Claim
20 words
The process of claim 1 wherein said esterification is carried out at a temperature ranging from 100° to 300° C.
Claim 15
Dependent Claim
17 words
The process of claim 1 wherein the cationically polymerizable monomer is vinyltoluene, indene, isopropenylnorbornene, or mixtures thereof.
Claim 16
Dependent Claim
22 words
The process of claim 2 wherein the cationically polymerizable monomer is present in the copolymer in from 10 to 40% by weight.
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) | 1980-06-06 | 1980-12-06 | 1981-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-06 | 1984-12-06 | 1985-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-06 | 1988-12-06 | 1989-06-07 | $7700.00 | Window Closed / Lapsed |