Purification of hydroxyphenylpropionic acid ester
    2.
    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
    3.
    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。

    Rubber composition
    7.
    发明授权
    Rubber composition 失效
    橡胶组成

    公开(公告)号:US5191003A

    公开(公告)日:1993-03-02

    申请号:US741617

    申请日:1991-08-07

    IPC分类号: C08K5/20 C08K9/08

    CPC分类号: C08K9/08 C08K5/20

    摘要: A rubber composition comprising a rubber, a filler and a diamide compound represented by the formula: ##STR1## wherein X is hydrogen, alkyl of 1 to 18 carbon atoms, alkoxy of 1 to 18 carbon atoms, alkanoyl of 2 to 19 total carbon atoms, amino, nitro, cyano, hydroxy, carboxy or halogen, and n is an integer of 2 to 12. This rubber composition is increased in its loss factor and is useful for tires and rubber vibration isolators. For example, the resulting tires prepared from the rubber composition are improved in their gripping performance.

    摘要翻译: 一种橡胶组合物,其包含由下式表示的橡胶,填料和二酰胺化合物:其中X为氢,1至18个碳原子的烷基,1至18个碳原子的烷氧基,2至19个总碳原子的烷酰基 ,氨基,硝基,氰基,羟基,羧基或卤素,n为2〜12的整数。该橡胶组合物的损失因子增加,可用于轮胎和橡胶隔振器。 例如,由橡胶组合物制备的所得轮胎的抓持性能得到改善。

    Stabilizer for synthetic resins
    10.
    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。