Adeka Argus Chemical Co., Ltd.

Argus Chemical Corporation

Asahi Denka Kogyo K.k.

Other

Hitachi Chemical Company, Ltd.

Asahi Denka Kogyo Kabushiki Kaisha

Tohru Haruna

Yutaka Nakahara

Motonobu Minagawa

William E Leistner

Kazunori Nishikawa

Atsushi Nishimura

Masayuki Takahashi

Takashi Takeuchi

Naohiro Kubota

Mitsuo Akutsu

Etsuo Tobita

Kazuo Sugibuchi

Toshinori Yukino

Toshihiro Shibata

Shinichi Ishikawa

Akihiro Kobayashi

Kiyotaka Mashita

Atsushi Fujioka

Fumiaki Kanega

Bunji Hirai

Masaki Yagi

Toshio Ohzeki

Takayuki Saitoh

Yuji Kobayashi

Masahiro Nonoyama

Kenji Tazima

Mitsuhiro Hamajima

The present invention is directed to an ultraviolet absorber composition which is formed by melt-mixing a compound (A) represented by formula (I):and a resin stabilizer (B) selected from the group consisting of a phenolic antioxidant (b-1), a phosphorus-containing antioxidant (b-2), a hindered amine stabilizer (b-3), and an ultraviolet absorber (b-4) other than the compound (A), at a mass ratio (A)/(B) of 95/5 to 50/50. The composition has excellent compatibility with synthetic resins and provides a stabilized synthetic resin molding.

Ultraviolet absorber composition and resin composition stabilized therewith

A macromolecular material composition which comprises a macromolecular material and a modifier which comprises a polyvinyl cyclohexane compound having hydroindane structure. The modifier improves melt flow characteristics, flexibility at a low temperature, and mechanical characteristics, such as bending modulus and bending strength, of the material, and do not bleed or give bad smell.

Macromolecular material composition and a modifier for macromolecular

Stabilizers for enhancing the resistance of synthetic resins to deterioration when exposed to elevated temperatures and/or ultraviolet light comprising from about 0.001 to about 10 parts by weight of a bisphenol phosphite having the formula ##STR1## wherein R.sub.1 is tertiary-butyl or tertiary-amyl, R.sub.2 is alkyl having from one to about nine carbon atoms, R.sub.3 is hydrogen or alkyl having from one to about four carbon atoms, and R.sub.4 is alkyl having from one to about thirty carbon atoms; and from about 0.001 to about 10 parts by weight of a phenol having the formula ##STR2## wherein R.sub.5 is alkyl having from one to about four carbon atoms; and R.sub.6 is hydrogen or alkyl having from one to about four carbon atoms; and stabilized synthetic resin compositions comprising such stabilizers.

Synthetic resins and stabilizer compositions for synthetic resin

A polycarbonate resin composition improved in heat resistance by the addition of an organic cyclic phosphite represented by the general formula: ##STR1## wherein R.sub.1 represents an alkyl group having 1 to 9 carbon atoms; R.sub.2 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms; and R.sub.3 represents an alkyl group having 1 to 30 carbon atoms.

Polycarbonate resin composition

A filler-containing polyolefin resin composition comprising a resin composition composed of a polyolefin resin and an inorganic filler exhibits an excellent thermal stability despite the presence of the inorganic filler by adding thereto a particular phenolic antioxidant, an amide or monoglyceride compound of a higher fatty acid and a particular metal inactivating agent.

Polyolefin resin composition

Stabilizers for enhancing the resistance of synthetic resins to deterioration when exposed to elevated temperatures and/or ultraviolet light comprising from about 0.001 to about 10 parts by weight of a bisphenol phosphite having the formula ##STR1## wherein R.sub.1 is tertiary-butyl or tertiary-amyl, R.sub.2 is alkyl having from one to about nine carbon atoms, R.sub.3 is hydrogen or alkyl having from one to about four carbon atoms, and R.sub.4 is alkyl having from one to about thirty carbon atoms; and from about 0.001 to about 10 parts by weight of a phenol having the formula ##STR2## wherein R.sub.5 is alkyl having from one to about four carbon atoms; and stabilized synthetic resin compositions comprising such stabilizers.

A synthetic resin composition stabilized particularly against the deterioration caused by the action of heat and light, which comprises 100 parts by weight of a synthetic resin, 0.001 to 10 parts by weight of a cyclic phosphite compound represented by the following general formula (I) and 0.001 to 10 parts by weight of a hindered amine compound having a group represented by the following general formula (II) in its molecule: ##STR1## wherein R.sub.1 stands for a tert-butyl or tert-amyl group; R.sub.2 stands for a C.sub.1.about.9 alkyl group; R.sub.3 stands for a hydrogen atom or a C.sub.1.about.4 alkyl group and R.sub.4 stands for a C.sub.1.about.30 alkyl group.

Stabilized synthetic resin composition

A cyclic phosphonite compound having the following formula (I) is disclosed and useful as a stabilizer for a synthetic resin. ##STR1## in which R1 is an alkyl, phenyl or an alkylphenyl, R2 is hydrogen or an alkyl, R3 is an alkyl, R4 is hydrogen or methyl and R1 and R2 may form an alkylene by linking each other.

Phosphonite compound and synthetic resin composition

A polyolefin composition comprises 100 parts by weight of a polyolefine which has been produced with use of a Ziegler catalyst and has a part or residue of the catalyst left therein, 0.005 to 1 part by weight of a phenol compound having the formula (I) and 0.005 to 1 part by weight of an organic phosphite compound having the formula (II). ##STR1## in which R is a residue group of an alcohol being monohydric, dihydric, trihydric or terahydric, R1 is methyl or tert.-butyl, R2 is an alkyl, --CH2CH2COOR3 or --COOR3, R3 being an alkyl, an aryl or an alkylaryl, and n is a number of 1 to 4.

Polyolefin composition

Synthetic polymer compositions comprise 100 parts by weight of a synthetic polymer and 0.001 to 5 parts by weight of a benzotriazol compound, and thus possesses improved stability.

Stabilized synthetic polymer composition

A synthetic resin composition comprises 100 parts by weight of a synthetic resin, 0.001 to 10 parts by weight of a cyclic alkylphosphite compound of 2,2'-alkylidene-bisphenol (I) and 0.001 to 10 parts by weight of beta-(3,5-dialkyl-4-hydroxyphenyl)-propionic acid ester (II) and is stabilized to light and heat.

Composition of stabilized synthetic resin

Cyclic bis and tris phosphites are provided having the formula: ##STR1## wherein: A is selected from the group consisting of sulfur; oxygen; alkylidene having from one to about six carbon atoms; cycloalkylidene having from three to about eight carbon atoms; and phenyl and alkyl phenyl alkylidene having from seven to about fourteen carbon atoms;

Cyclic bis and tris phosphites and stabilized synthetic resin

A process is provided for the preparation of 2,2,6,6-tetramethyl-4-oxopiperidine, reacting acetone with ammonia in the presence of a catalytically effective amount of an organic carboxylic acid halide.

Method for preparing 2,2,6,6-tetramethyl-4-oxopiperidine

A process is provided for the preparation of 2,2,6,6-tetramethyl-4-oxopiperidine, reacting acetone with 2,2,4,4,6-pentamethyl-2,3,4,5,-tetrahydropyrimidine in the presence of a catalytically effective amount of an organic carboxylic acid halide.

Process for preparing 2,2,6,6-tetramethyl-4-oxopiperidine

Mixed light stabilizers for synthetic polymers are provided having the formula ##STR1## wherein: R is a polyvalent group selected from the group consisting of aliphatic hydrocarbon groups having from one to about twenty carbon atoms, cycloaliphatic hydrocarbon groups having from three to about sixteen carbon atoms and aromatic hydrocarbon groups having from six to about thirty carbon atoms; such groups substituted with from one to about six groups selected from the group consisting of hydroxy, acyloxy, and halogen; and N(C.sub.n.sbsb.1 H.sub.2n.sbsb.1).sbsb.3 where n.sub.1 is a number from one to five;

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Tohru Haruna