Coupling of blends of &agr;-olefin/vinyl aromatic monomer or hindered aliphatic vinyl monomer interpolymers with polyolefins
    71.
    发明授权
    Coupling of blends of &agr;-olefin/vinyl aromatic monomer or hindered aliphatic vinyl monomer interpolymers with polyolefins 失效
    α-烯烃/乙烯基芳族单体或受阻的脂族乙烯基单体互聚物与聚烯烃的共混物的偶联

    公开(公告)号:US06284842B1

    公开(公告)日:2001-09-04

    申请号:US09140900

    申请日:1998-08-26

    IPC分类号: C08F830

    摘要: The invention includes a process of preparing a coupled polymer blend comprising heating an admixture containing (1) a polymer blend containing: (A) from 1 to 99 weight percent of one ore more &agr;-olefin/hindered vinyl monomer substantially random interpolymers, each having been made from monomer components comprising: (1) from 0.5 to 65 mole percent of either (a) at least one vinyl aromatic monomer, or (b) at least one hindered aliphatic vinyl monomer, or (c) a combination of at least one vinyl aromatic monomer and at least one hindered aliphatic vinyl monomer; and (2) from 35 to 99.5 mole percent of at least one aliphatic &agr;-olefin having from 2 to 20 carbon atoms; and (B) from 99 to 1 weight percent of one or more homopolymers or copolymers made from monomer components comprising aliphatic &agr;-olefins having from 2 to 20 carbon atoms, or aliphatic &agr;-olefins having from 2 to 20 carbon atoms and containing polar groups; and (2) a coupling amount of at least one poly(sulfonyl azide) to at least the decomposition temperature of the poly(sulfonyl azide) for a period sufficient for decomposition of at least 80 weight percent of the poly(sulfonyl azide) and sufficient to result in a coupled polymer blend having less than 2 weight percent gel.

    摘要翻译: 本发明包括一种制备偶联聚合物共混物的方法,其包括加热含有(1)聚合物共混物的混合物的混合物,所述混合物包含:(A)1至99重量%的一个或多个α-烯烃/受阻乙烯基单体基本上无规共聚体, 由单体组分制成,包括:(1)0.5至65摩尔%的(a)至少一种乙烯基芳族单体,或(b)至少一种受阻的脂族乙烯基单体,或(c)至少一种 乙烯基芳族单体和至少一种受阻的脂族乙烯基单体; 和(2)35至99.5摩尔%的至少一种具有2至20个碳原子的脂族α-烯烃; 和(B)99至1重量%的一种或多种由包含具有2至20个碳原子的脂族α-烯烃的单体组分或具有2至20个碳原子且含有极性基团的脂肪族α-烯烃制成的均聚物或共聚物 ; 和(2)至少一种聚(磺酰基叠氮化物)的偶联量至少达到聚(磺酰基叠氮化物)的分解温度足够分解至少80重量%的聚(磺酰基叠氮化物)和足够的 导致具有小于2重量%凝胶的偶联聚合物共混物。

    Rheology modification of interpolymers of alpha-olefins and vinylidene aromatic monomers
    73.
    发明授权
    Rheology modification of interpolymers of alpha-olefins and vinylidene aromatic monomers 失效
    α-烯烃和亚乙烯基芳族单体互聚物的流变改性

    公开(公告)号:US06211302B1

    公开(公告)日:2001-04-03

    申请号:US09129155

    申请日:1998-08-05

    IPC分类号: C08F830

    摘要: The invention includes a process of preparing a coupled polymer comprising heating an admixture containing (1) at least one interpolymer of an alpha olefin and vinyl aromatic monomer and (2) a coupling amount of at least one poly(sulfonyl azide) to at least the decomposition temperature of the poly(sulfonyl azide) for a period sufficient for decomposition of at least about 80 weight percent of the poly(sulfonyl azide) and sufficient to result in a coupled polymer. The polymer preferably. comprises ethylene, and a vinyl aromatic monomer, preferably styrene. The amount of poly(sulfonyl azide) is preferably from about 0.01 to about 1 weight percent of the interpolymer and the reaction preferably takes place at a temperature greater than about 150° C., more preferably 185° C. The process optionally and in one preferred embodiment additionally comprises steps (b) fabricating an article from the coupled polymer and (c) crosslinking the fabricated coupled polymer. The invention additionally includes any composition produced by a process of the invention and any article made from the composition, preferably articles formed from a melt of the composition, more preferably by blow molding, blowing a film, foaming, or profile extruding, most preferably to form a coating for wire or cable, a tube, a gasket, a seal, roofing, or fiber. The article is optionally calendared. Additionally, the invention includes the use of compositions of the invention as starting materials for forming processes in which the composition is melted and especially in blow molding, blowing a film, foaming, or profile extruding, most preferably to form a coating for wire or cable, a tube, a gasket, a seal, roofing, or fiber.

    摘要翻译: 本发明包括制备偶联聚合物的方法,其包括加热含有(1)至少一种α-烯烃和乙烯基芳族单体的共聚物的混合物和(2)至少一种聚(磺酰基叠氮化物)的偶联量至少至少 聚(磺酰基叠氮化物)的分解温度足以分解至少约80重量%的聚(磺酰基叠氮化物)并足以产生偶联聚合物。 优选聚合物。 包括乙烯和乙烯基芳族单体,优选苯乙烯。 聚(磺酰基叠氮化物)的量优选为互聚物的约0.01至约1重量%,并且反应优选在大于约150℃,更优选185℃的温度下进行。该方法任选地和一个 优选实施方案另外包括步骤(b)从偶联的聚合物制备制品和(c)交联制备的偶联聚合物。 本发明还包括通过本发明的方法制备的任何组合物和由组合物制成的任何制品,优选由组合物的熔体形成的制品,更优选通过吹塑,吹膜,发泡或型材挤出,最优选 形成电线或电缆的涂层,管,垫圈,密封件,屋顶或纤维。 该文章是可选的日历。 此外,本发明包括使用本发明的组合物作为其中组合物熔融的方法的起始原料,特别是在吹塑,吹塑膜,发泡或型材挤出中,最优选形成电线或电缆涂层 管,垫圈,密封件,屋顶或纤维。

    Vinyl aromatic polymer coupling and foams

    公开(公告)号:US6117918A

    公开(公告)日:2000-09-12

    申请号:US140586

    申请日:1998-08-26

    CPC分类号: C08F8/34

    摘要: The invention includes a process comprising steps of (1) forming a admixture of (a) a vinyl aromatic polymer and (b) a coupling amount of at least one poly(sulfonyl azide); (2) introducing the vinyl aromatic polymer or admixture into a melt processing device; (3) melting the vinyl aromatic polymer or admixture, and thereafter (4) exposing the admixture to a temperature, hereinafter, melt process temperature, sufficient to result in coupling of the vinyl aromatic polymer. The invention also includes a process of increasing the molecular weight of a vinyl aromatic polymer by heating an admixture of at least one vinyl aromatic polymer and a coupling amount of at least one poly(sulfonyl azide). Alternatively the invention is a process comprising steps of (1) forming, under a first pressure, a mixture of a vinyl aromatic polymer, a blowing agent and at least one poly(sulfonyl azide), with the mixture at a temperature at which the viscosity of the mixture is sufficient to retain the blowing agent when the mixture is allowed to expand; (2) extruding the mixture into a holding zone maintained at a temperature and second pressure which does not allow the mixture to foam, the holding zone having an outlet die defining an orifice opening into a zone of a third pressure lower than the first or second pressures at which the mixture foams, and an openable gate closing the die orifice; (3) periodically opening the gate; (4) substantially concurrently applying mechanical pressure by a movable ram on the mixture to eject the mixture from the holding zone through the die orifice into the zone of third pressure, at a rate greater than that at which substantial foaming in the die orifice occurs and less than that at which substantial irregularities in cross-sectional area or shape occurs; and (5) permitting the ejected mixture to expand unrestrained in at least one dimension to produce an elongated thermoplastic cellular body. The invention also includes any composition comprising a product formed by a process of the invention, said composition preferably comprising a foam or polymer and any article formed from such a composition.

    System and method for optically inspecting cigarettes by detecting the
lengths of cigarette sections
    75.
    发明授权
    System and method for optically inspecting cigarettes by detecting the lengths of cigarette sections 失效
    通过检测香烟部分的长度来光学检查香烟的系统和方法

    公开(公告)号:US6075882A

    公开(公告)日:2000-06-13

    申请号:US877871

    申请日:1997-06-18

    摘要: An inspection station irradiates a moving cigarette with a one or more strobed arrays of infrared LEDs. The infrared radiation which passes through the cigarette is received by a video camera, which forms a digital image of the cigarette. A computer then detects the edges of the digital image of the cigarette and determines therefrom the length of the filter, hollow acetate tube, void chamber, tobacco plug, as well as the overall length of the cigarette. The computer then compares these measurements with expected standard values of these sections, and outputs the comparison results to the user using various display formats. According to exemplary aspects, the present invention delivers the cigarettes one at a time to the video camera using a parts handling system. The parts handling system comprises a infeed bin for storing a batch of cigarettes, and for dispensing a cigarette to a carriage positioned beneath the infeed bin. The carriage then transports the cigarette placed thereon between the strobing infrared LED arrays and the video camera, which together provide an image of the cigarette. The carriage then transports the cigarette to an output bin, where a diverter blade knocks the cigarette off the carriage and into the output bin.

    摘要翻译: 检查站用一个或多个选通的红外LED阵列照射移动的香烟。 通过香烟的红外辐射由摄像机接收,摄像机形成香烟的数字图像。 然后,计算机检测香烟的数字图像的边缘,并由此确定过滤器,中空醋酸盐管,空腔,烟丝塞的长度以及香烟的总长度。 然后,计算机将这些测量与这些部分的预期标准值进行比较,并且使用各种显示格式将比较结果输出给用户。 根据示例性方面,本发明使用零件处理系统将香烟一次一个地传送到摄像机。 部件处理系统包括用于存放一批香烟的进料箱,并且用于将香烟分配到位于进料仓下方的托架上。 然后,托架将放置在其上的香烟运送在闪光的红外LED阵列和摄像机之间,这些一起提供香烟的图像。 然后,托架将香烟运输到出料仓,在该出口箱中,分流器叶片将烟丝从托架上敲出并进入出纸槽。

    Nucleophilic displacement method for synthesis of non-rigid PBZ polymers
    78.
    发明授权
    Nucleophilic displacement method for synthesis of non-rigid PBZ polymers 失效
    用于合成非刚性PBZ聚合物的亲核取代方法

    公开(公告)号:US5194562A

    公开(公告)日:1993-03-16

    申请号:US819419

    申请日:1992-01-10

    IPC分类号: C08G73/06 C08G73/22 C08G75/32

    CPC分类号: C08G73/06 C08G73/22 C08G75/32

    摘要: Azole rings, such as oxazole and thiazole rings, can activate an aromatic ring bonded to a leaving group such as a halogen atom so that the aromatic ring will undergo aromatic nucleophilic substitution. The reaction is useful for making ethers, thioethers and amines containing azole rings. In particular, monomers having azole rings, activated aromatic rings with leaving groups and nucleophilic moieties can react under conditions of aromatic nucleophilic displacement to form non-rigid rob PBZ polymers. The non-rigid rod PBZ polymers can be used to form molecular composites with rigid rod PBZ polymers which molecular composites are not substantially phase separated.

    摘要翻译: 偶氮环如恶唑和噻唑环可以活化与离去基团如卤素原子键合的芳香环,使得芳环将进行芳族亲核取代。 该反应可用于制备醚,硫醚和含有唑环的胺。 特别地,具有唑环,具有离去基团的活化芳环和亲核部分的单体可在芳族亲核取代的条件下反应以形成非刚性PBZ聚合物。 非刚性棒状PBZ聚合物可用于形成具有刚性棒PBZ聚合物的分子复合材料,其分子复合材料基本上不相分离。

    Preparation of geminal dicarbamates
    80.
    发明授权
    Preparation of geminal dicarbamates 失效
    偕二氨基甲酸酯的制备

    公开(公告)号:US4870203A

    公开(公告)日:1989-09-26

    申请号:US899131

    申请日:1986-08-21

    IPC分类号: C07C269/06 C07C271/12

    CPC分类号: C07C271/12 C07C269/06

    摘要: Prepare .alpha., .beta.-saturated geminal biscarbamates by contacting an .alpha.,.beta.-unsaturated ether with a carbamate under reaction conditions, optionally in the presence of a catalyst.

    摘要翻译: 通过在反应条件下,任选地在催化剂存在下使α,β-不饱和醚与氨基甲酸酯接触来制备α,β饱和孪生双氨基甲酸酯。