Claims
- 1. A preparation of an insoluble colorant consisting essentially of an insoluble colorant distributed in an effective amount of a polypropylene wax having at 170.degree. C. a viscosity of 0.5 to 5 Pa.s and an isotactic proportion of 40 to 90% by weight.
- 2. The preparation as claimed in claim 1, wherein the colorant is a pigment.
- 3. The preparation as claimed in claim 1, wherein the viscosity range of the polypropylene wax is 1 to 5 Pa.s.
- 4. The preparation as claimed in claim 1, wherein the isotactic proportion of the polypropylene wax is 50 to 80% by weight.
- 5. The preparation as claimed in claim 1, wherein the amount of colorant is up to 80% by weight.
- 6. The preparation as claimed in claim 1, wherein the amount of colorant is 20 to 70% by weight.
- 7. The preparation as claimed in claim 2, consisting essentially of about 20 to 70% by weight of the pigment and of about 30 to 80% by weight of said polypropylene wax.
- 8. A process for manufacturing a preparation as claimed in claim 1, which comprises distributing the colorant in the molten polypropylene wax.
- 9. A process for dyeing polyolefins in the mass which comprises dispersing in the polyolefin a preparation as claimed in claim 1.
- 10. The process as claimed in claim 9, wherein the polyolefin is polypropylene.
- 11. The preparation as claimed in any one of claims 1 to 7 wherein said preparation consists of an effective amount of the polypropylene wax and the insoluble colorant.
Priority Claims (1)
Number |
Date |
Country |
Kind |
2652628 |
Nov 1976 |
DEX |
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Parent Case Info
This is a continuation, of application Ser. No. 852,538, filed 11/17/77.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
3767444 |
Zeisberger |
Oct 1973 |
|
Continuations (1)
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Number |
Date |
Country |
Parent |
852538 |
Nov 1977 |
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