US4332587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Colorant preparations, a process for their production and their use for coloring plastics
Assignee: Bayer AG
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Filing: 1981-01-28
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Granted: 1982-06-01
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Expires: 2001-01-28
Abstract
Abstract A colorant preparation containing (A) a colorant which is sparingly soluble or insoluble in water, (B) a plasticizer based on an ester and (C) a reaction product of a fatty acid ester of a polyhydric alcohol and ethylene oxide, a process for the production of this preparation and its use for pigmenting plastics.
Inventors
- 👤 Michael Kressner
- 👤 Joachim Kolbe
- 👤 Fritz Bremer
- 👤 Georg Pape
- 👤 Karlheinz Wolf
- 👤 Ferdinand Kummeler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:52
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/006; C08; C08J; C08J3/00; C08J3/20; C08J3/22
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
66 words
A colorant preparation comprising: (A) a colorant which is sparingly soluble in water in an amount of 5-70% by weight; (B) a plasticiser based on an ester in an amount of 30-95% by weight; (C) an ethoxylated castor oil in the amount of 0.1-10% by weight, the weights of components (A), (B) and (C) being based upon the total quantity of components (A), (B) and (C).
Claim 2
Dependent Claim
66 words
A colorant preparation comprising: (A) a colorant which is sparingly soluble in water in an amount of 5-70% by weight; (B) a plasticiser based on an ester in an amount of 30-95% by weight; (C) an ethoxylated castor oil in the amount of 0.1-10% by weight, the weights of components (A), (B) and (C) being based upon the total quantity of components (A), (B) and (C).
Claim 3
Dependent Claim
50 words
A colorant preparation according to claim 1, wherein said colorant which is sparingly soluble in water is present in an amount of 10-60% by weight, said plasticiser is present in an amount of 40-90% by weight and said ethoxylated castor oil is present in an amount of 0.5-5% by weight.
Claim 4
Dependent Claim
28 words
A colorant preparation according to claim 1, wherein said castor oil is one which has been ethoxylated with 4-10 mols of ethylene oxide per mol of castor oil.
Claim 5
Dependent Claim
8 words
Preparation according to claim 1, containing a pigment.
Claim 6
Dependent Claim
8 words
Preparation according to claim 1, containing an adipate.
Claim 7
Dependent Claim
53 words
Preparations according to claim 1, containing the reaction product of ethylene oxide with the ester of a fatty acid with up to 18 C atoms and an alcohol with 3-6 OH groups and 3-6 C atoms, in which 3-25 mols of ethylene oxide have been added on per mol of fatty acid ester.
Claim 8
Dependent Claim
17 words
Preparation according to claim 1, containing a reaction product of a fat and/or ester-oil and ethylene oxide.
Claim 9
Dependent Claim
58 words
Process for the production of a preparation according to claim 1, characterised in that a colorant which is sparingly soluble or insoluble in water, a plasticiser based on an ester, and a reaction product of a fatty acid ester of a polyhydric alcohol and ethylene oxide are mixed in wet comminution units in a manner known per se.
Claim 10
Dependent Claim
13 words
A plastic composition comprising a plastic and the coloring preparation of claim 1.
Claim 11
Dependent Claim
13 words
A plastic composition according to claim 9, wherein said plastic is a thermoplastic.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-05-31 | 1985-11-30 | 1986-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-31 | 1989-11-30 | 1990-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-31 | 1993-11-30 | 1994-06-01 | $7700.00 | Window Closed / Lapsed |