Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2005-08-02
2005-08-02
Sanders, Kriellion A. (Department: 1714)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C524S100000, C524S102000, C544S216000, C548S300700
Reexamination Certificate
active
06924330
ABSTRACT:
A compound of the formula (I) wherein G1, G2, G3and G4are independently of one another C1-C18alkyl or C5-C12cycloalkyl or the radicals G1and G2and the radicals G3and G4form independently of one another, together with the carbon atom they are attached to, C5-C12cycloalkyl; R is hydrogen, C1-C18alkyl, oxyl, —OH, —CH2CN, C3-C6alkenyl, C3-C8alkynyl, C7-C12phenylalkyl unsubstituted or substituted on the phenyl radical by C1-C4alkyl and/or C1-C4alkoxy; C1-C8acyl, C1-C18alkoxy, C1-C18hydroxyalkoxy, C2-C18alkenyloxy, C5-C12cycloalkoxy, C7-C12phenylalkoxy unsubstituted or substituted on the phenyl radical by C1-C4alkyl and/or C1-C4alkoxy; C1-C18alkanoyloxy, (C1-C18alkoxy)carbonyl, glycidyl or a group —CH2CH(OH)(G) with G being hydrogen, methyl or phenyl; n is 1, 2, 3 or 4; and X is an organic radical of a valency equal to n; and when n is 2, 3 or 4, each of the radicals G1, G2, G3, G4and R can have the same or a different meaning in the units of the formula (II), is useful for stabilizing an organic material against degradation induced by light, heat or oxidation
REFERENCES:
patent: 3205195 (1965-09-01), Cook
patent: 3532703 (1970-10-01), Murayama et al.
patent: 3761278 (1973-09-01), Gauss et al.
patent: 3971757 (1976-07-01), Rasberger
patent: 2042533 (1972-03-01), None
patent: 2621947 (1976-12-01), None
Derwent Abstract 94587X/51 for DE 2621947 (1976).
Lazzari Dario
Zagnoni Graziano
Ciba Specialty Chemicals Corp.
Loggins Shiela A.
Sanders Kriellion A.
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