Color improving stabilizing compositions comprising leucine

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...

Reexamination Certificate

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Details

C524S126000, C524S147000, C524S151000, C524S153000, C524S251000, C524S300000, C252S400240, C252S403000, C252S404000, C252S405000

Reexamination Certificate

active

06995200

ABSTRACT:
The present invention relates to a stabilizer composition comprisinga) at least one sterically hindered phenol,b) at least one phosphorus-containing secondary antioxidant, andc) at least one Leucine compound,wherein the weight ratio of component (a) to component (b) to component (c) is from 1:5:3 to 1:0,5:0,1 for the stabilization of polyolefine-based thermoplastic polymers against degradation, crosslinking and/or discoloration due to the exposure to heat and/or light, especially in the presence of oxygen.

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English abstract for DE 19637181, Mar. 20, 1997.

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