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US 6,319,974 B1Granted
Method for improving the stability of polymers
AssigneeDegussa AG
InventorsHelmut Mangold, Mario Scholz, Uwe Schachtely, Klaus Deller
Life of this patent
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Abstract
The stability of polymers against the action of heat and flames is improved in that a pyrogenically produced titanium dioxide containing iron oxide is added to the polymers.
Claims8
A method of improving the stability of a polymer against the action of heat and flames, comprising:
- adding to said polymer a pyrogenically produced titanium dioxide containing iron oxide, with an iron-oxide content of 0.05 to 50% by weight.
An unvulcanized polymer composition having improved stability against the action of heat and flames, comprising:
- a polymer, and
- 0.05 to 50% by weight of a pyrogenically produced titanium dioxide containing iron oxide with an iron oxide content of 0.05 to 50% by weight.
Dependencies are inferred from the claim text.