Claims
- 1. Inorganic pigment coated with maleic, malonic, benzoic, fumaric or phthalic acid or mixtures thereof, said acid being present in the amount of about 0.01-6 percent, based on the weight of the inorganic pigment.
- 2. The pigment of claim 1 wherein the acid is maleic.
- 3. The pigment of claim 1 or 2 wherein the pigment is TiO.sub.2.
- 4. Process for treating an inorganic pigment comprising contacting it with an organic acid of claim 1.
- 5. The process of claim 4 wherein the inorganic pigment is TiO.sub.2.
- 6. A polymer incorporating the pigment of claims 1 or 2.
- 7. A polymer incorporating the pigment of claims 1 or 2 wherein the pigment is TiO.sub.2.
- 8. A polymer or copolymer of one or more ethylenically unsaturated monomers incorporating the pigment of claims 1 or 2.
- 9. Polyethylene, polypropylene or polystyrene incorporating the pigment of claims 1 or 2.
Parent Case Info
This application is a continuation of application Ser. No. 07/151,672 filed Feb. 3, 1988 abandoned.
US Referenced Citations (12)
Non-Patent Literature Citations (1)
Entry |
Abstract; Author: Solvik, R. S.; Wu, W. C. L.; Krebaum, L. J.; Title: Control of Yellowing in High Density Polyethylene [PE] Pigmented with Titanium (IV) Oxide. |
Continuations (1)
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Number |
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151672 |
Feb 1988 |
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