Process for polymerization of 2,6-disubstituted phenol
    1.
    发明授权
    Process for polymerization of 2,6-disubstituted phenol 失效
    2,6-二取代苯酚聚合方法

    公开(公告)号:US4558119A

    公开(公告)日:1985-12-10

    申请号:US623501

    申请日:1984-06-22

    IPC分类号: C08G65/38 C08G65/44

    CPC分类号: C08G65/44

    摘要: A process is described for oxidative polymerization of a monomeric 2,6-disubstituted phenol in the presence of a catalyst comprising a manganese compound, an N-alkylalkanolamine and a basic compound. The process produces a polyphenyleneether which does not exhibit deterioration in molecular weight and undesirable coloration when subject to heat, such as the heat ordinarily applied in molding. The polyethyleneether have excellent tensile strength and elongation.

    摘要翻译: 描述了在包含锰化合物,N-烷基链烷醇胺和碱性化合物的催化剂存在下单体2,6-二取代的苯酚的氧化聚合的方法。 该方法产生聚苯醚,其不会在受热时表现出分子量的劣化和不希望的着色,例如通常在模塑中应用的热。 聚乙烯醚具有优异的拉伸强度和伸长率。

    Polyphenylene ether compositions
    5.
    发明授权
    Polyphenylene ether compositions 失效
    聚苯醚组合物

    公开(公告)号:US4368293A

    公开(公告)日:1983-01-11

    申请号:US298808

    申请日:1981-09-02

    摘要: A polyphenylene ether composition excellent in impact resistance, heat stability, gloss and processability which contains(a) 80-20 weight parts of polyphenylene ether resin, and(b) 20-80 weight parts of a rubber-reinforced polystyrene wherein 5-25 weight % of polybutadiene having 15-35% of 1,2-vinyl-structure is dispersed forming discontinuous elastomer phase,particularly said polyphenylene ether resin being a polymer having the following recurring unit I or units I and II: ##STR1## wherein R.sub.1 -R.sub.6 represent the same or different monovalent residual groups such as alkyl group having 1-4 carbon atoms excluding tert.-butyl group, aryl group, halogen or hydrogen, but R.sub.5 and R.sub.6 are not hydrogens at the same time.

    摘要翻译: 包含(a)80-20重量份聚苯醚树脂和(b)20-80重量份橡胶增强聚苯乙烯的耐冲击性,热稳定性,光泽和加工性优异的聚苯醚组合物,其中5-25重量份 具有15-35%的1,2-乙烯基结构的聚丁二烯的%分散形成不连续的弹性体相,特别是所述聚苯醚树脂是具有以下重复单元I或单元I和II的聚合物:其中R1-R6 代表相同或不同的一价残基,例如除叔丁基,芳基,卤素或氢之外的具有1-4个碳原子的烷基,但R 5和R 6不同时为氢。

    Power assisted bicycle
    6.
    发明授权
    Power assisted bicycle 失效
    动力辅助自行车

    公开(公告)号:US6119801A

    公开(公告)日:2000-09-19

    申请号:US905169

    申请日:1997-08-01

    摘要: Several embodiments of prime mover-assisted pedal-operated vehicles, such as a bicycle. In each embodiment, both the prime mover and the pedal mechanism drive the rear wheel through a common transfer shaft. The transfer shaft is disposed vertically above the pedal-operated crankshaft axis so as to improve the ground clearance and simplify the overall construction of the bicycle. The transmission arrangement is such that the prime mover transmission ratios are always in a step-down condition while the pedal-operated crankshaft drives the transfer shaft through a step-up transmission. Various embodiments of improved torque sensors are also employed so as to provide smooth transition and smooth feel to the rider.

    摘要翻译: 诸如自行车的原动机辅助踏板操作车辆的几个实施例。 在每个实施例中,原动机和踏板机构都通过公共传送轴驱动后轮。 传递轴垂直设置在踏板操作的曲轴轴线上方,以提高离地间隙,并简化自行车的整体结构。 传动装置使得原动机传动比始终处于降档状态,而踏板操作的曲轴通过升压传动驱动传送轴。 还采用改进的扭矩传感器的各种实施例,以便为骑手提供平稳的过渡和平滑的感觉。

    Diester of 3,5,3',5'-tetrabromo-bisphenol A with halogenated aromatic
carboxylic acid
    7.
    发明授权
    Diester of 3,5,3',5'-tetrabromo-bisphenol A with halogenated aromatic carboxylic acid 失效
    3,5,3',5'-四溴双酚A与卤代芳族羧酸的二酯

    公开(公告)号:US4301062A

    公开(公告)日:1981-11-17

    申请号:US83957

    申请日:1979-10-11

    IPC分类号: C08K5/107 C08K5/10 C07C69/78

    CPC分类号: C08K5/107

    摘要: A novel diester compound of the formula (I): ##STR1## wherein each of R.sub.1 and R.sub.2 represents a group of the formula (II): ##STR2## wherein n is an integer of 0 to 4; and m an integer of 1 to 5, is found to be capable of imparting excellent flame-retardancy to various inflammable polymeric materials such as polystyrene, polyester, polyamide, polyphenylene oxide, etc. without deleterious effects on other physical properties of such polymeric materials.

    摘要翻译: (I)的新型二酯化合物:其中R 1和R 2各自表示式(II)的基团:其中n为0至4的整数;(II)其中n为0至4的整数; 并且m为1〜5的整数被发现能够对各种可燃性聚合材料如聚苯乙烯,聚酯,聚酰胺,聚苯醚等赋予优异的阻燃性,而不会对这种聚合物材料的其它物理性质产生有害影响。

    Propylene glycol cyclohexyl ether derivatives, method of producing same
and uses thereof
    8.
    发明授权
    Propylene glycol cyclohexyl ether derivatives, method of producing same and uses thereof 失效
    丙二醇环己基醚衍生物,其制备方法及其用途

    公开(公告)号:US5414144A

    公开(公告)日:1995-05-09

    申请号:US125094

    申请日:1993-09-21

    摘要: A novel propylene glycol cyclohexyl ether derivative represented by formula I is disclosed. ##STR1## wherein R.sup.1 represents a straight or branched alkyl group having 1 to 6 carbon atoms, or a cycloalkyl group having 3 to 6 carbon atoms; R.sup.2 represents a hydrogen atom or a hydroxyl group; and n represents an integer of from 1 to 3.This propylene glycol cyclohexyl ether derivative is not only extremely safe by virtue of its low toxicity and high flash point, but also has excellent detergency, low viscosity, and can impart a high film-forming ability to a resin emulsion. Further, this propylene glycol cyclohexyl ether derivative also has high hydrophobicity (and hence low water-solubility), so that it can minimize the cost and labor for disposal of waste water. Therefore, this propylene glycol cyclohexyl ether derivative is useful in various applications, for example, as a detergent, as a solvent for a wide variety of applications and as a film-forming agent.

    摘要翻译: 公开了由式I表示的新型丙二醇环己基醚衍生物。 (I)其中R 1表示具有1至6个碳原子的直链或支链烷基或具有3至6个碳原子的环烷基; R2表示氢原子或羟基; n表示1〜3的整数。该丙二醇环己基醚衍生物由于其毒性低,闪点高而不仅极其安全,而且还具有优异的去污力,低粘度,并且可赋予高成膜性 树脂乳液的能力。 此外,该丙二醇环己基醚衍生物也具有高的疏水性(因此具有低的水溶性),从而能够最大限度地降低处理废水的成本和劳动。 因此,该丙二醇环己基醚衍生物可用于各种用途,例如作为洗涤剂,作为各种应用的溶剂和成膜剂。

    Diester of 3,5,3',5'-tetrabromo-bisphenol A with halogenated aromatic
carboxylic acid
    9.
    发明授权
    Diester of 3,5,3',5'-tetrabromo-bisphenol A with halogenated aromatic carboxylic acid 失效
    3,5,3',5'-四溴双酚A与卤代芳族羧酸的二酯

    公开(公告)号:US4274998A

    公开(公告)日:1981-06-23

    申请号:US83956

    申请日:1979-10-11

    CPC分类号: C08K5/0066

    摘要: A novel diester compound of the formula (I): ##STR1## wherein each of R.sub.1 and R.sub.2 represents a group of the formula (II): ##STR2## wherein X is bromine atom; Y at least one group selected from the group consisting of alkyl groups having 1 to 4 carbon atoms, alkoxy groups having 1 to 4 carbon atoms, hydroxyl group and primary, secondary or tertiary amino groups; p an integer of 0 to 4; q an integer of 1 to 4; r an integer 1 to 4 and (q+r) is equal to an integer of not more than 5, is found to be capable of imparting excellent flame-retardancy to various inflammable polymeric materials such as polystyrene, polyester, polyamide, polyphenylene oxide, etc. without deleterious effects on other physical properties of such polymeric materials.

    摘要翻译: (I)的新型二酯化合物:其中R 1和R 2各自表示式(II)的基团:其中X是溴原子;(II)其中X是溴原子; Y为选自碳原子数为1〜4的烷基,碳原子数1〜4的烷氧基,羟基,伯,仲或叔氨基的至少1个基团。 p为0〜4的整数; q为1〜4的整数; r为整数1〜4,(q + r)等于5以下的整数,可以赋予各种易燃性聚合物材料如聚苯乙烯,聚酯,聚酰胺,聚苯醚等优异的阻燃性, 等等,对这种聚合物材料的其它物理性能没有有害影响。