C - Chemistry – Metallurgy – 07 – F
Patent
C - Chemistry, Metallurgy
07
F
C07F 9/547 (2006.01) C08K 5/524 (2006.01) C08K 5/527 (2006.01) C08L 1/10 (2006.01)
Patent
CA 2081793
ABSTRACT OF THE INVENTION CELLULOSE ESTER RESIN STABILIZER AND CELLULOSE ESTER RESIN COMPOSITIONS STABILIZED THEREWITH Surinder Ahluwalia Michael Fisch Davie Peveler Nonylphenyl neopentylene phosphite or stated in terms of systematic nomenclature 5,5-dimethyl-2-nonylphenoxy-1,3,2- dioxaphosphorinane, compositions effective to stabilize cellulose ester resins against the degradative effects of heat and processing are disclosed. In accordance with the present invention, preferred stabilizing compositions for cellulose ester resins include nonylphenyl neopentylene phosphite in combination with epoxidized linseed oil. These stabilizing compositions demonstrate their stabilizing effectiveness by maintaining the melt viscosity of he polymer during hot working and minimizing discoloration of the polymer when heated.
Ahluwalia Surinder
Fisch Michael H.
Peveler R. David
Osler Hoskin & Harcourt Llp
Witco Corporation
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