Hindered piperidine stabilizers and production thereof
    1.
    发明授权
    Hindered piperidine stabilizers and production thereof 失效
    受阻哌啶稳定剂及其制备

    公开(公告)号:US5714612A

    公开(公告)日:1998-02-03

    申请号:US578926

    申请日:1995-12-27

    CPC分类号: C08K5/3435

    摘要: A hindered piperidine compound represented by the formula of ##STR1## wherein R.sup.1 is a 2,2,6,6-tetramethyl-4-piperidyl group of which the N-position is substituted or not, a hydrogen atom, a C.sub.1 -C.sub.18 arylalkyl group which may contain a cyclic portion, or a C.sub.7 -C.sub.18 arylalkyl group, R.sup.2 is a hydrogen atom, a C.sub.1 -C.sub.10 alkyl group which may contain a cyclic portion, a C.sub.1 -C.sub.18 alkyloxy group which may contain a cyclic portion, or a hydroxyl group, and n is an integer of 2 to 8, effectively stabilizes organic materials having a property to deteriorate by the action of light. A method for producing the compound represented by the above formula is also disclosed.

    摘要翻译: 由下式表示的受阻哌啶化合物,其中R1是其N-取代的2,2,6,6-四甲基-4-哌啶基,氢原子,C 1 -C 18芳烷基 可以含有环状部分的基团,或C 7〜C 18芳烷基,R 2为氢原子,可含有环状部分的C 1〜C 10烷基,可含有环状部分的C 1 -C 18烷氧基,或 羟基,n为2〜8的整数,有效地使通过光的作用使具有劣化性的有机材料稳定化。 还公开了由上式表示的化合物的制备方法。

    Hydroxyphenylpropionic ester having novel crystal structure
    2.
    发明授权
    Hydroxyphenylpropionic ester having novel crystal structure 失效
    具有新晶体结构的羟基苯丙酸酯

    公开(公告)号:US5338869A

    公开(公告)日:1994-08-16

    申请号:US87866

    申请日:1993-07-09

    CPC分类号: C07D493/10

    摘要: A hydroxyphenylpropionic ester represented by the formula of ##STR1## which has a crystal structure showing a sharp X-ray diffraction peak at a diffraction angle 2.theta.=7.9.degree. by X-ray diffraction measurement using an X-ray of a Cu-K.sub..alpha. wavelength. This novel crystal exhibits largely advantageous effects in industrial production and usage of the ester because of its high purity, high quality, excellent filterability owing to the large crystal growth, and excellent fluidity owing to the large bulk specific gravity.

    摘要翻译: 由下式表示的羟基苯基丙酸酯,其具有通过X射线衍射测定在衍射角2θ= 7.9°处显示出尖锐X射线衍射峰的晶体结构,使用X射线 Cu-Kα波长。 由于其高纯度,高质量,由于大的晶体生长而具有优异的过滤性,并且由于体积比重大而具有优异的流动性,因此该新颖的晶体在工业生产和酯的使用方面具有很大的有益效果。

    Hydroquinone type compound and its use as stabilizer for synthetic resin
    4.
    发明授权
    Hydroquinone type compound and its use as stabilizer for synthetic resin 失效
    对苯二酚类化合物及其作为合成树脂的稳定剂

    公开(公告)号:US4939196A

    公开(公告)日:1990-07-03

    申请号:US291965

    申请日:1988-12-30

    CPC分类号: C07C65/28 C08K5/10

    摘要: A compound represented by the formula of ##STR1## wherein R.sub.1 represents an alkyl having 1 to 5 carbon atoms;R.sub.2 represents an alkyl having 1 to 18 carbon atoms, an alkenyl having 2 to 5 carbon atoms, an aralkyl having 7 to 9 carbon atoms, phenyl, an aliphatic acyl having 2 to 5 carbon atoms, or benzoyl;R.sub.3 represents hydrogen or an alkyl having 1 to 11 carbon atoms; andR.sub.4 represents hydrogen or methyl.The compound is useful as a stabilizer for synthetic resins such as butadiene polymers. The butadiene polymer containing the compound is stable against thermal deterioration in the absence of oxygen, as well as against thermal oxidative deeterioration and thermal oxidative discoloration.

    摘要翻译: 由下式表示的化合物:其中R 1表示具有1至5个碳原子的烷基; R 2表示碳原子数1〜18的烷基,碳原子数2〜5的烯基,碳原子数7〜9的芳烷基,苯基,碳原子数2〜5的脂肪族酰基或苯甲酰基。 R3代表氢或具有1至11个碳原子的烷基; R4表示氢或甲基。 该化合物可用作合成树脂如丁二烯聚合物的稳定剂。 含有该化合物的丁二烯聚合物对于不存在氧的热劣化以及热氧化脱臭和热氧化变色是稳定的。

    Process for preparation of polyaminotriazines
    8.
    发明授权
    Process for preparation of polyaminotriazines 失效
    聚氨基三嗪的制备方法

    公开(公告)号:US06469165B1

    公开(公告)日:2002-10-22

    申请号:US08363780

    申请日:1994-12-27

    IPC分类号: C07D25170

    CPC分类号: C07D401/14

    摘要: Polyaminotriazines represented by formula (I) can be prepared by conducting a reduction alkylamination of a tetramethylpiperidone with a diamine represented by formula (IIb), NH2—R—NH2, in the presence of a hydrogenating catalyst, removing the catalyst upon completion of the reaction to obtain an unrefined crude product (A); and, conducting a polycondensation reaction of the unrefined crude product (A) and a dichlorotriazine in an aromatic solvent and in the presence of an inorganic base.

    摘要翻译: 由式(I)表示的聚氨基三嗪可以通过在氢化催化剂存在下用式(IIb),NH 2 -R-NH 2代表的二胺进行四甲基哌啶酮的还原烷基化,在反应完成时除去催化剂 得到未精制粗产物(A); 并且在芳族溶剂中和在无机碱的存在下进行未精制粗产物(A)和二氯三嗪的缩聚反应。

    Hindered piperidine stabilizers and production thereof
    9.
    发明授权
    Hindered piperidine stabilizers and production thereof 失效
    受阻哌啶稳定剂及其制备

    公开(公告)号:US5384348A

    公开(公告)日:1995-01-24

    申请号:US56880

    申请日:1993-05-05

    CPC分类号: C08K5/3435

    摘要: A hindered piperidine compound represented by the formula of ##STR1## wherein R.sup.1 is a 2,2,6,6-tetramethyl-4-piperidyl group of which the N-position is substituted or not, a hydrogen atom, a C.sub.1 -C.sub.18 alkyl group which may contain a cyclic portion, or a C.sub.7 -C.sub.18 arylalkyl group, R.sup.2 is a hydrogen atom, a C.sub.1 -C.sub.10 alkyl group which may contain a cyclic portion, a C.sub.1 -C.sub.18 alkyloxy group which may contain a cyclic portion, or a hydroxyl group, and n is an integer of 2 to 8, effectively stabilizes organic materials having a property to deteriorate by the action of light. A method for producing the compound represented by the above formula is also disclosed.

    摘要翻译: 由下式表示的受阻哌啶化合物,其中R1是其N-取代的2,2,6,6-四甲基-4-哌啶基,氢原子,C 1 -C 18烷基 可以含有环状部分的基团,或C 7〜C 18芳烷基,R 2为氢原子,可含有环状部分的C 1〜C 10烷基,可含有环状部分的C 1 -C 18烷氧基,或 羟基,n为2〜8的整数,有效地使通过光的作用使具有劣化性的有机材料稳定化。 还公开了由上式表示的化合物的制备方法。

    Process for granulating 2,2,6,6-tetramethylpiperidine-containing light
stabilizer
    10.
    发明授权
    Process for granulating 2,2,6,6-tetramethylpiperidine-containing light stabilizer 失效
    制备含2,2,6,6-四甲基哌啶的光稳定剂的方法

    公开(公告)号:US5290495A

    公开(公告)日:1994-03-01

    申请号:US757926

    申请日:1991-09-12

    CPC分类号: C08K5/3435

    摘要: A process for producing granules of a 2,2,6,6-tetramethylpiperidine-containing light stabilizer, which comprises mixing a 2,2,6,6-tetramethylpiperidine-containing light stabilizer having a melting point of not less than 60.degree. C. with a lubricant selected from the group consisting of water and an aqueous solution of an alcohol having 1 to 4 carbon atoms, and granulating the resultant mixture while pressure is applied thereto. The granular light stabilizer product has low dusting property and excellent free-flowing property.

    摘要翻译: 一种制备含2,2,6,6-四甲基哌啶的光稳定剂颗粒的方法,其包括将熔点不低于60℃的含2,2,6,6-四甲基哌啶的光稳定剂混合。 使用选自水和具有1至4个碳原子的醇的水溶液的润滑剂,并在施加压力的同时造粒所得混合物。 粒状光稳定剂产品具有低粉尘性和优良的自由流动性。