Adeka Argus Chemical Co., Ltd.

Kenji Tajima

Kazunori Nishikawa

Ryozo Arata

Masayuki Takahashi

Takashi Takeuchi

Toshinori Yukino

Takao Nishina

Hiroshi Yamanoi

Tetsuo Tsuboi

Kazushige Funasaki

A polymer composition comprises a polymer blend comprising a polyester and a polycarbonate or another polymer blend comprising alpha-methylstyrene-modified ABS resin and at least one polymer selected from a polycarbonate, a saturated polyester, polyphenylene ether, a polyamide and a polyacetal and an organic phosphite compound having the formula (I): ##STR1## in which R is an alkyl having 1 to 9 carbon atoms.

Polymer composition

Bis(2,6-di tert butyl-4-branched propyl or butyl phenyl)-pentaerythritol spiro phosphites are provided having the formula: ##STR1## wherein R is a branched propyl or butyl group, such as isopropyl, iso-butyl, or sec-butyl, as well as synthetic resin compositions having enhanced resistance to deterioration upon exposure to the heat and light comprising such as bis(2,6-di-t-butyl-4-branched propyl or butyl phenyl)pentaerythritol spiro phosphites.

Bis(2,6-dis-tert-butyl-4-branched propyl or butyl

Hindered phenol amides are provided having the following formula: ##STR1## wherein: R.sub.1 and R.sub.2 are hydrogen or lower alkyl having from one to four carbon atoms;

Hindered phenol amides

A process for preparing diaryl pentaerythritol diphosphites by reaction of phosphorous trichloride, pentaerythritol and an alkyl phenol having the formula ##STR1## wherein: R.sub.1 is selected from the group consisting of tertiary alkyl having from about four to about eight carbon atoms and cyclohexyl; and

Growing community of inventors

Kuwana, Japan

Kenji Tajima