EP0180402A2
Expired / Lapsed
EP
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Coloring material and process for preparation thereof
Assignee: Tosoh Corp
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Filing: 1985-10-23
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Granted: —
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Expires: 2005-10-23
Abstract
Abstract Disclosed is a coloring material comprising a rubber having a sulfonic acid group or a salt thereof, which is dyed with a basic dye. The coloring material is prepared by adding a solution of an alkali in an alcohol to a solution of a chlorosulfonated polyolefin in an organic solvent and then adding a basic dye to the obtained reaction liquid, or adding a basic dye to a solution of a sulfonated product of a rubber in an organic solvent, and optionally removing the solvent from the obtained solution.
Inventors
- 👤 Shuichi Okuzono
- 👤 Tatsushi Nakagawa
- 👤 Takashi Shintani
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 19:48
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/006; C09B67/0061; C08; C08C; C08C19/00; C08C19/30; C09B69/00; C09B69/02; C09B69/06; C09B69/10; Y; Y10; Y10S; Y10S260/00; Y10S260/38
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
22 words
A coloring material comprising a rubber having a sulfonic acid group or a salt thereof, which is dyed with a basic dye.
Claim 2
Dependent Claim
22 words
A coloring material comprising a rubber having a sulfonic acid group or a salt thereof, which is dyed with a basic dye.
Claim 3
Dependent Claim
18 words
A coloring material as set forth in claim 1, which is in the form of a dyed solid.
Claim 4
Dependent Claim
24 words
A coloring material as set forth in claim 1, which is in the form of a solution of a dyed solid in a liquid.
Claim 5
Dependent Claim
32 words
A coloring material as set forth in claim 1, wherein said rubber having a sulfonic acid group or a salt thereof is a reaction product of a chlorosulfonated polyolefin with an alkali.
Claim 6
Dependent Claim
52 words
A coloring material as set forth in claim 1, wherein said rubber having a sulfonic acid group or a salt thereof is a sulfonated product of a rubber which is selected from the group consisting of an isoprene rubber, a styrene-butadiene rubber, a butadiene rubber, a nitrile rubber, and an ethylene-propylene rubber.
Claim 7
Dependent Claim
20 words
A coloring material as set forth in claim 1, wherein said rubber has a mooney viscosity of 20 to 70.
Claim 8
Dependent Claim
69 words
A process for the preparation of coloring materials, which comprises adding a solution of an alkali in an alcohol to a solution of a chlorosulfonated polyolefin in an organic solvent and then adding a basic dye to the obtained reaction liquid, or adding a basic dye to a solution of a sulfonated product of a rubber in an organic solvent, and optionally removing the solvent from the obtained solution.
Claim 9
Dependent Claim
69 words
A process for the preparation of coloring materials, which comprises adding a solution of an alkali in an alcohol to a solution of a chlorosulfonated polyolefin in an organic solvent and then adding a basic dye to the obtained reaction liquid, or adding a basic dye to a solution of a sulfonated product of a rubber in an organic solvent, and optionally removing the solvent from the obtained solution.
Claim 10
Dependent Claim
31 words
A process as set forth in claim 7, wherein the alkali is used in an amount of at least two moles per mole of the chlorosulfonic group of the chlorosulfonated polyolefin.
Claim 11
Dependent Claim
34 words
A process as set forth in claim 7, wherein said rubber is selected from the group consisting of an isoprene rubber, a styrene-butadiene rubber, a butadiene rubber, a nitrile rubber, and an ethylene-propylene rubber.
Claim 12
Dependent Claim
23 words
A process according to claim 7, wherein the addition of the basic dye is carried out at a temperature of at least 50°C.
References Cited (Backward Citations)
No citation records indexed.
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