Abstract: Provided is a compound represented by Formula (1A) below wherein the symbols are as defined in the description: Also disclosed are a composition containing at least one of the compound and a formed article of the compound.

Abstract: Copolymers are disclosed of lower alpha-olefins and HALS-containing monomers, typically 1-(10-undecenyl)-2,2,6,6-tetramethylpiperidine. They may be used for light or heat stabilizing, by themselves or in blends with other polymers.

Abstract: A phenol compound of the formula ?1! ##STR1## wherein each of X's is a group of the formula ?2! ##STR2## wherein R.sub.1 and R.sub.4 are the same or different and each is an alkyl having 1 to 8 carbon atoms, and R.sub.2, R.sub.3, R.sub.5 and R.sub.6 are the same or different and each is a hydrogen atom or an alkyl having 1 to 8 carbon atoms; a stabilizer for organic materials which comprises the compound; a composition comprising the compound and an organic material; and a composition comprising the composition and a sulfur antioxidant, and use thereof.The compound of the present invention as used as a stabilizer for an organic material shows superior preventive effect against oxidative degradation and extremely superior resistance against degradation of an organic material in an environment involving contact with hot water for a long time, as compared to compounds conventionally used as hot water resistant antioxidants.

Abstract: A molded product for colored food, comprising (A) 0.01 to 1 part by weight of a hindered amine type light stabilizer and (B) 0.01 to 0.5 part by weight of an aromatic phosphite type and/or an aromatic phosphonite type antioxidant formulated per 100 parts by weight of a polyolefin containing substantially no phenol type antioxidant is disclosed.The molded product for colored food made of a polyolefin and having the composition of the present invention undergoes no discoloration even when contacted with a colored food for a long time and is also excellent in odor characteristic, mechanical characteristics and stability, etc., and therefore excellent as molded product for colored food, particularly sealed vessel, vessel for microwave oven heating.

Abstract: Phosphite compounds of the formula ##STR1## wherein R.sup.1 is an alkyl having 1 to 22 carbon atoms, and use thereof. The phosphite compounds of the present invention show stabilizing action on organic materials and are useful as antioxidants. A combined use of the compounds of the present invention with hindered phenol compounds, light stabilizers or thioalkanoate compounds further improves stabilizing effect.

Abstract: Phosphite compounds represented by the formula ##STR1## wherein R.sup.1 stands for a tertiary hydrocarbyl group, R.sup.2 stands for an alkyl group, an aralkyl group which may be substituted, an aryl group or a cycloalkyl group and n stands for 0, 1 or 2.Such compounds possess stabilizing action against organic materials, particularly antioxidant action, and are useful as antioxidants for preventing deterioration by oxidation of organic materials.

Abstract: Improvement in the weathering properties of polyolefin resins has been achieved by intimate compositions comprising Ziegler-process crystalline polyolefins containing halogen-magnesium compounds as catalytic carrier residues, and organic phosphorus compounds such as organic phosphites. The compositions may contain auxiliary components normally used in polyolefin resins; antioxidants and/or ultraviolet absorbers are especially useful.

Abstract: A lever-operated feed device is provided, in which a rotational sleeve, having a lever handle at one end thereof, is supported within a slide block for adjustably sliding the same along a guide way of a base through a rack-pinion mechanism. A rod, which operates a clamper to fix the block upon the base at an adjusted position, is extended through the rotational sleeve in co-axial alignment therewith. A clamp handle is secured upon one end of the rod near the lever handle of the sleeve so that the rotational manipulations of the lever handle and the clamp handle can be concentrically performed from a given place.