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US 11,414,509 B2Granted
Star-branched diene rubber
AssigneeArlanxeo Deutschland GmbH
InventorsNorbert Steinhauser, Peter Karbaum
Life of this patent
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Abstract
A star-branched diene rubber, the process for making such a rubber and its use in high impact polystyrene (HIPS) and acrylonitrile butadiene styrene (ABS) polymers.
Claims16
A star-branched diene rubber comprising
- a vinyl content of less than 15 wt.-% based on the total weight of the rubber,
- a Mooney viscosity (ML 1+4 at 100° C.) from 30 to 80 MU,
- a solution viscosity in the range of 30 to 60 mPas,
- a low rubber discoloration expressed by APHA number (5% solution in styrene) of less than 100, and
- wherein a ratio of the Mooney viscosity to the solution viscosity is greater than 1.0.
2 more elements
Dependencies are inferred from the claim text.