Claims
- 1. A premixture composition for the production of water-resistant support materials coated with polyolefin resin for light-sensitive materials of polyolefin resin and light-reflecting white pigment comprising
- a polyolefin resin having hydrocarbon side chains formed as a copolymer of ethylene and an .alpha.-olefin;
- a light-reflecting titanium dioxide pigment intimately mixed with the said polyolefin resin;
- wherein hydrocarbon side chains derived of an .alpha.-olefin in the copolymer comprise C1 to C16 carbon atoms, and wherein
- the content of .alpha.-olefin forming hydrocarbon side chains in the copolymer amounts to from about 0.1 to 20 mole-percent relating to the mole sum of ethylene derived and .alpha.-olefin derived elements contained in the copolymer.
- 2. The premixture composition according to claim 1, wherein hydrocarbon side chains derived of an .alpha.-olefin in the copolymer comprise C2 to C14 carbon atoms
- 3. The premixture composition according to claim 1, wherein
- hydrocarbon side chains derived of an .alpha.-olefin in the copolymer comprise C2 to C6 carbon atoms.
- 4. The premixture composition according to claim 1, wherein
- the contents of the copolymer of ethylene and .alpha.-olefin in the premixture composition amounts to from about 10 weight-percent to 100 weight-percent of the complete premixture composition.
- 5. The premixture composition according to claim 1, wherein
- the content of titanium dioxide in the premixture composition amounts to from about 10 to 70 weight-percent.
- 6. The premixture composition according to claim 1, wherein more than about 90 percent of the titanium dioxide is of the rutile structure.
- 7. The premixture composition according to claim 1, wherein more than about 90 percent of the titanium dioxide is of the anatase structure.
- 8. The premixture composition according to claim 1, wherein the titanium dioxide is subjected to an after-treatment prior to mixing, wherein the titanium dioxide comprises surface residues of an after-treatment of its surface with a member selected from the group consisting of silicon dioxide, aluminum oxide, zirconium aluminate, zirconium titanate, magnesium titanate, calcium titanate, sodium titanate, potassium titanate, and mixtures thereof.
- 9. The premixture composition according to claim 8, wherein the titanium dioxide comprises surface residues of an after-treatment of its surface with at least one of the compounds selected from the group consisting of (poly)siloxanes, alkanol amines, alkyl titanates, and mixtures thereof.
- 10. The premixture composition according to claim 1, wherein the titanium dioxide is subjected to an after-treatment prior to mixing, wherein the titanium dioxide comprises surface residues of an after-treatment of its surface with at least one of the compounds selected from the group consisting of (poly)siloxanes, alkanol amines, alkyl titanates, and mixtures thereof.
- 11. The premixture composition according to claim 1, wherein the titanium dioxide employed in the premixture has an average particle size of from about 0.16 micrometer to 1.2 micrometer.
- 12. The premixture composition according to claim 1, wherein the titanium dioxide employed in the premixture has an average particle size of from about 0.2 micrometer to 0.8 micrometer.
- 13. The premixture composition according to claim 1, wherein the titanium dioxide pigment had been subjected to a chemical after-treatment.
- 14. The premixture composition according to claim 1, wherein the amount of titanium dioxide employed in the premixture is from about 20 to 50 weight-percent of the total.
- 15. The premixture composition according to claim 1, further comprising an additive selected from the group consisting of coloring agents, pigments, optical brighteners, delustering agents, dispersing agents, slip additives, lubricants, separating agents, antistatic agents, antioxidants, and mixtures thereof.
- 16. A premixture composition for the production of water-resistant support materials coated with polyolefin resin for light-sensitive materials of polyolefin resin comprising
- a polyolefin resin having hydrocarbon side chains formed as a copolymer of ethylene and an .alpha.-olefin;
- a light-reflecting titanium dioxide pigment intimately mixed with the said polyolefin resin;
- wherein hydrocarbon side chains derived of the .alpha.-olefin in the copolymer comprise C1 to C16 carbon atoms, and wherein
- the content of .alpha.-olefins forming hydrocarbon side chains in the copolymer amounts to from about 0.1 to 10 mole-percent relating to the mole sum of ethylene derived and .alpha.-olefin derived elements contained in the copolymer.
- 17. A premixture composition for the production of water-resistant support materials coated with polyolefin resin for light-sensitive materials of polyolefin resin and light-reflecting white pigment comprising
- a polyolefin resin having hydrocarbon side chains formed as a copolymer of ethylene and an .alpha.-olefin;
- a light-reflecting titanium dioxide pigment intimately mixed with the said polyolefin resin;
- wherein hydrocarbon side chains derived of an .alpha.-olefin in the copolymer comprise C2 to C6 carbon atoms;
- the content of titanium dioxide in the premixture composition amounts to from about 10 to 70 weight-percent; and wherein
- more than about 90 percent of the titanium dioxide is of the anatase structure.
- 18. A premixture composition for the production of water-resistant support materials coated with polyolefin resin for light-sensitive materials of polyolefin resin and light-reflecting white pigment comprising
- a polyolefin resin having hydrocarbon side chains formed as a copolymer of ethylene and an .alpha.-olefin;
- a light-reflecting titanium dioxide pigment intimately mixed with the said polyolefin resin;
- wherein hydrocarbon side chains derived of an .alpha.-olefin in the copolymer comprise C2 to C6 carbon atoms;
- the content of titanium dioxide in the premixture composition amounts to from about 10 to 70 weight-percent;
- the titanium dioxide comprises surface residues of an after-treatment of its surface with a member selected from the group consisting of silicon dioxide, aluminum oxide, zirconium aluminate, zirconium titanate, magnesium titanate, calcium titanate, sodium titanate, potassium titanate and mixtures thereof.
- 19. The premixture composition according to claim 1, wherein the titanium dioxide is subjected to an after-treatment prior to mixing, wherein the titanium dioxide comprises surface residues of an after-treatment of its surface and mixtures thereof.
Priority Claims (1)
Number |
Date |
Country |
Kind |
3716269 |
May 1987 |
DEX |
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CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a continuation-in-part application of another application filed Apr. 25, 1988 and bearing Ser. No. 07/185,869 now U.S. Pat. No. 4,935,298. The entire disclosure of the application is hereby incorporated in this application as if fully set forth herein.
US Referenced Citations (5)
Foreign Referenced Citations (2)
Number |
Date |
Country |
0292120 |
Nov 1988 |
EPX |
2650340 |
May 1978 |
DEX |
Continuation in Parts (1)
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Number |
Date |
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Parent |
185869 |
Apr 1988 |
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