Hindered piperidine stabilizers and production thereof
    51.
    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。

    Thermoplastic resin compositions comprising polyphenylene ether,
polyolefins and dinitrodiamines
    52.
    发明授权
    Thermoplastic resin compositions comprising polyphenylene ether, polyolefins and dinitrodiamines 失效
    包含聚苯醚,聚烯烃和二硝基二胺的热塑性树脂组合物

    公开(公告)号:US5428091A

    公开(公告)日:1995-06-27

    申请号:US171622

    申请日:1993-12-22

    摘要: A thermoplastic resin composition which comprises 100 parts by weight of a composition comprising 95-5 % by weight of at least one polyolefinresin (A) selected from homopolymers of ethylene or .alpha.-olefin or copolymers thereof and these homopolymers or copolymers modified with a polyfunctional compound (E) and/or an unsaturated monomer (L) and 5-95 % by weight of at least one polyphenylene-ether-resin (B) selected from polyphenylene ether, modified polyphenylene ether with the above (E) and/or (L) and a composition comprising the polyphenylene or modified polyphenylene ether and an aromatic vinyl polymer resin (M) and 0.001-10 parts by weight of a dinitrodiamine (D) of the following formula (I). ##STR1## (wherein X represents a divalent chain aliphatic group, a cyclic aliphatic group or an aromatic group which may contain a halogen or an oxygen atom, R.sup.1 represents a hydrogen atom, a chain aliphatic group, a cyclic aliphatic group or an aromatic group and when both of X and R.sup.1 are chain aliphatic groups, the nitrogen atoms may further bond each other to form a ring through X and R.sup.1 ; R.sup.2 and R.sup.3 are independently a hydrogen atom or an alkyl group of 1-12 carbon atoms and R.sup.2 and R.sup.3 may bond to form a ring).

    摘要翻译: 一种热塑性树脂组合物,其包含100重量份的组合物,其包含95-5重量%的至少一种选自乙烯或α-烯烃的均聚物或其共聚物的聚烯烃树脂(A),以及这些均聚物或共聚物,其被多官能化合物 (E)和/或不饱和单体(L)和5-95重量%的至少一种选自聚苯醚的聚苯醚树脂(B),具有上述(E)和/或(L)的改性聚苯醚 )和包含聚亚苯基或改性聚苯醚和芳族乙烯基聚合物树脂(M)的组合物和0.001-10重量份下式(I)的二硝基二胺(D)。 (I)(其中X表示二价链脂肪族基团,环状脂肪族基团或可以含有卤素或氧原子的芳香族基团,R 1表示氢原子,链状脂肪族基团,环状脂肪族基团或 芳族基团,当X和R 1都是链状脂肪族基团时,氮原子可以进一步通过X和R 1彼此键合形成环; R2和R3独立地是氢原子或1-12个碳原子的烷基 并且R 2和R 3可以键合形成环)。

    Hydroxyphenylpropionic ester having novel crystal structure
    53.
    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。

    Stabilized polypropylene resin compositions containing a dinitrodiamine
compound
    55.
    发明授权
    Stabilized polypropylene resin compositions containing a dinitrodiamine compound 失效
    含有DINITRODIAMINE化合物的稳定的聚丙烯树脂组合物

    公开(公告)号:US5180764A

    公开(公告)日:1993-01-19

    申请号:US681363

    申请日:1991-04-08

    IPC分类号: C08K5/32

    CPC分类号: C08K5/32

    摘要: A thermoplastic resin is stabilized by incorporating therein a dinitrodiamine compound represented by the formula of ##STR1## wherein X is a divalent aliphatic, alicyclic or aromatic group which may contain halogen or oxygen in the group, R.sup.1 is hydrogen or an aliphatic, alicyclic or aromatic group, provided that two nitrogen atoms linking through X may further link through R.sup.1 when both X and R.sup.1 are the aliphatic groups, and R.sup.2 and R.sup.3 independently of one another are each hydrogen or an alkyl of 1 to 12 carbon atoms, provided that R.sup.2 and R.sup.3 may conjointly form a ring. The composition thus blended is improved in thermal processing stability. Further, a modified polyolefin resin is improved in mechanical properties, particularly in impact strength, by the incorporation of the dinitrodiamine compound.

    Hydroquinone type compound and its use as stabilizer for synthetic resin
    56.
    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。