Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2005-10-18
2005-10-18
Sergent, Rabon (Department: 1711)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C524S291000, C524S299000, C524S323000, C524S333000, C524S339000, C524S342000, C524S343000, C524S351000, C524S590000, C524S728000, C524S738000, C524S739000, C524S740000, C524S741000, C524S871000, C528S048000, C528S049000, C528S052000, C528S906000
Reexamination Certificate
active
06956074
ABSTRACT:
There is a provided a polyurethane composition, which exhibits an excellent property of preventing discoloring or coloring not only by oxidized nitrogen gases but also by heat, characterized in that(A) a hindered phenol antioxidant, and(B) an amide represented by the following general formula (I):in-line-formulae description="In-line Formulae" end="lead"?R1—CONH2 (I)in-line-formulae description="In-line Formulae" end="tail"?wherein R1represents an alkyl group having 12 to 21 carbon atoms is compounded in the polyurethane.
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Fukuda Kanako
Higo Mutsuko
Kimura Kenji
Miyake Kunihito
Colton, Esq. Kendrew H.
Fitch Even Tabin & Flannery
Sergent Rabon
Sumitomo Chemical Company Ltd.
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