Stabilizer for synthetic resins
    2.
    发明授权
    Stabilizer for synthetic resins 失效
    合成树脂稳定剂

    公开(公告)号:US4576734A

    公开(公告)日:1986-03-18

    申请号:US712230

    申请日:1985-03-15

    摘要: A stabilizer for synthetic resins containing as an effective component a mixture comprising a phenol type compound (I) represented by the formula (I), ##STR1## wherein R.sub.1 represents a C.sub.1 -C.sub.3 alkyl group, and at least one sulfur type compound (II) selected from the group consisting of compounds represented by the formula (II-1), ##STR2## wherein R.sub.2 represents a C.sub.4 -C.sub.20 alkyl group, and compounds represented by the formula (II-2), ##STR3## wherein R.sub.3 represents a C.sub.3 -C.sub.18 alkyl group, and R.sub.4 and R.sub.5 independently represent a hydrogen atom or a C.sub.1 -C.sub.6 alkyl group, the weight ratio of phenol type compound (I) to sulfur type one (II) being 1 to 0.5-15.

    摘要翻译: 含有由式(I)表示的酚型化合物(I),其中R 1表示C 1 -C 3烷基的混合物作为有效成分的合成树脂稳定剂 ,和选自由式(II-1)表示的化合物,其中R 2表示C 4 -C 20烷基的化合物,II-1所示的至少一种硫型化合物(II) 式(II-2),其中R 3表示C 3 -C 18烷基,R 4和R 5独立地表示氢原子或C 1 -C 6烷基的化合物(II-2),苯酚型化合物 (I)的硫型(II)为1〜0.5〜15。

    Purification of hydroxyphenylpropionic acid ester
    5.
    发明授权
    Purification of hydroxyphenylpropionic acid ester 失效
    羟基苯丙酸酯的纯化

    公开(公告)号:US4739080A

    公开(公告)日:1988-04-19

    申请号:US868742

    申请日:1986-05-30

    CPC分类号: C07D493/10

    摘要: Method for the purification of 3,9-bis{2-[3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propionyloxy]-1,1-dimethylethyl} -2,4,8,10-tetraoxaspiro[5.5]undecane, to form crystals having a crystalline structure which, when subjected to Cu-K.sub..alpha. X-ray diffraction, show sharp X-ray diffraction peaks at angles of diffraction, to 2.theta.=2.8.degree., 2.theta.=8.7.degree. and 2.theta.=11.7.degree., by recrystallizing the ester at a temperature lower than 40.degree. C. using as a recrystallization solvent, A C.sub.5 -C.sub.10 alicyclic hydrocarbon, which may contain a limited amount of certain other solvents, or using a mixed solvent of a C.sub.5 -C.sub.10 aliphatic hydrocarbon and at least one other certain solvent in a certain weight ratio.

    摘要翻译: 纯化3,9-双{2- [3-(3-叔丁基-4-羟基-5-甲基苯基)丙酰氧基] -1,1-二甲基乙基} -2,4,8,10-四氧杂螺环 [5.5]十一烷,以形成具有晶体结构的晶体,当经受Cu-Kαα射线衍射时,衍射角呈现尖锐的X射线衍射峰,为2θ= 2.8°,2θ= 8.7° 和2θ= 11.7°,通过在低于40℃的温度下使酯重结晶,使用可能含有有限量的某些其它溶剂的A C5-C10脂环族烃,或使用混合溶剂 一种C 5 -C 10脂族烃和至少一种其它特定溶剂。

    Method for producing hydroxyphenylpropionic acid ester
    7.
    发明授权
    Method for producing hydroxyphenylpropionic acid ester 失效
    羟基苯丙酸酯的制备方法

    公开(公告)号:US4754045A

    公开(公告)日:1988-06-28

    申请号:US868100

    申请日:1986-05-29

    CPC分类号: C07D493/10

    摘要: Method for producing 3,9-bis{2-[3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propionyloxy]-1,1-dimethylethyl}-2,4,8,10-tetraoxaspiro[5.5]undecane by ester exchange of a 3-(3-tert-butyl-4-hydroxy-5-methylphenyl)-propionic acid ester with 3,9-bis(2-hydroxy-1,1-dimethylethyl)-2,4,8,10-tetraoxaspiro[5.5]-undecane at a temperature of 170.degree.-250.degree. C. using a calcium compound as a catalyst in an amount of 0.05-1.5 moles per mole of the 3,9-bis(2-hydroxy-1,1-dimethylethyl)-2,4,8,10-tetraoxaspiro[5.5]-undecane.

    摘要翻译: 制备3,9-双{2- [3-(3-叔丁基-4-羟基-5-甲基苯基)丙酰氧基] -1,1-二甲基乙基} -2,4,8,10-四氧杂螺[5.5 (3-叔丁基-4-羟基-5-甲基苯基) - 丙酸酯与3,9-双(2-羟基-1,1-二甲基乙基)-2,4, 8,10-四氧杂螺[5.5] - 十一碳烷,温度为170-250℃,使用钙化合物作为催化剂,其用量为0.05-1.5摩尔/摩尔3,9-双(2-羟基 - 1,1-二甲基乙基)-2,4,8,10-四氧杂螺[5.5] - 十一烷。