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253 条记录 (耗时 0.013 秒)

    Multilayer structure having a layer comprised of a blend of polyphenylene ether and high impact polystyrene
    1.
    发明授权
    Multilayer structure having a layer comprised of a blend of polyphenylene ether and high impact polystyrene 失效
    具有由聚苯醚和高抗冲聚苯乙烯的共混物组成的层的多层结构

    公开(公告)号：US5260110A

    公开(公告)日：1993-11-09

    申请号：US895563

    申请日：1992-06-05

    申请人： David K. Nichols

    发明人： David K. Nichols

    IPC分类号： B32B27/08 ,  C08L51/04 ,  B65D71/00 ,  C08F29/12

    CPC分类号： B32B27/08 ,  C08L51/04 ,  Y10T428/31913 ,  Y10T428/3192

    摘要： A multilayer packaging structure for microwave food reheating applications or for sterilized hot filling is provided having an outer layer prepared from a blend of polyphenylene ether and a high impact polystyrene. The polyphenylene ether-high impact polystyrene layer is useful as a structural support layer and provides resistance to distortion and burn through during microwave reconstitution or hot filling. The PPE/HIPS blend layer serves to increase the high temperature performance of the coextruded structure without sacrificing the thermoformability characteristics generally associated with HIPS based monolayer or multilayer structures. The ethylene vinyl alcohol or polyvinylidene chloride layers act as the oxygen barrier to prevent food spoilage and the polyolefin layer acts as a moisture barrier.

    摘要翻译： 提供了一种用于微波食品再加热应用或灭菌热灌装的多层包装结构，其具有由聚苯醚和高抗冲聚苯乙烯的共混物制备的外层。 聚苯醚 - 高抗冲聚苯乙烯层可用作结构支撑层，并且在微波重构或热灌装期间提供抗变形和燃烧通过。 PPE / HIPS共混物层用于增加共挤出结构的高温性能，而不牺牲通常与基于HIPS的单层或多层结构相关的热成型性能。 乙烯乙烯醇或聚偏二氯乙烯层作为氧气阻隔层，以防止食物变质，聚烯烃层起防潮作用。

    Graft copolymers of vinylidene monomers onto trihalomethyl hydrocarbon glycidyl ether polymers
    4.
    发明授权
    Graft copolymers of vinylidene monomers onto trihalomethyl hydrocarbon glycidyl ether polymers 失效
    亚乙烯基单体在三卤代甲基缩水甘油醚聚合物上的接枝共聚物

    公开(公告)号：US3880957A

    公开(公告)日：1975-04-29

    申请号：US47540874

    申请日：1974-06-03

    申请人： GOODRICH CO B F

    发明人： TUCKER HAROLD A ,  KEMP RICHARD V

    IPC分类号： C08F283/06 ,  C08G65/22 ,  C08L71/02 ,  C08F39/00 ,  C08F29/12 ,  C08F29/30

    CPC分类号： C08L71/02 ,  C08F283/06 ,  C08G65/223

    摘要： CONTAINING MONOMERS TO YIELD USEFUL HIGH MOLECULAR WEIGHT POLYETHER POLYMERS. The polyether compositions have particular utility as substrates onto which vinylidene

    WHEREIN X is -Cl, -Br, or -I and R is an alkyl, cycloalkyl, aryl, alkaryl, or aralkyl radical of one to 12 carbon atoms, readily homopolymerize or copolymerize with other epoxide

    Trihalomethyl hydrocarbon glycidyl ethers of the formula
    MONOMERS CAN BE GRAFTED USING METAL COMPLEXES AS CATALYSTS TO PROVIDE IMPROVED POLYMERS.

    D R A W I N G

    摘要翻译： 式WHEREIN X的三卤甲基缩水甘油醚是-Cl，-Br或-I，R是具有1至12个碳原子的烷基，环烷基，芳基，烷芳基或芳烷基，容易与其它含环氧单体共聚或共聚 适用于高分子量聚乙烯聚合物。 聚醚组合物具有特殊的用途，作为其上使用金属络合物作为催化剂提供改性聚合物的亚乙烯基单体的基材。

    Heat sealable isotactic polypropylene and 1,3 pentadiene polymer
    5.
    发明授权
    Heat sealable isotactic polypropylene and 1,3 pentadiene polymer 失效
    可热封的全同立构聚丙烯和1,3-戊二烯聚合物

    公开(公告)号：US3865903A

    公开(公告)日：1975-02-11

    申请号：US35121173

    申请日：1973-04-16

    申请人： MOBIL OIL CORP

    发明人： NAHMIAS MICHAEL A ,  BULLARD EDWARD M

    IPC分类号： C08F236/04 ,  C08L23/10 ,  C08L23/14 ,  C08L57/02 ,  C08D3/04 ,  C08F29/12

    CPC分类号： C08L23/10 ,  C08F236/045 ,  C08L23/142 ,  C08L57/02 ,  C08L23/12 ,  C08L9/00 ,  C08L23/16 ,  C08L23/02 ,  C08L2666/04

    摘要： A resinous blend composition, and thermoplastic film structures fabricated therefrom having improved physical properties, comprising a polyolefin (e.g., polypropylene) containing a minor amount based on the weight of the polyolefin and sufficient to improve the heat sealing characteristics of films fabricated from such blends, of a normally solid, resinous, random multipolymer of a mixture comprising pentadiene, 1,3 and at least one other hydrocarbon compound containing ethylenic unsaturation copolymerizable therewith. Examples of such ethylenically unsaturated hydrocarbons include cyclopentadiene, isoprene, 2methylbutene-2, tertiary butylstyrene, Beta -pinene, dipentene, Beta -phellandrene, Alpha -methylstyrene, and mixtures thereof.

    摘要翻译： 树脂共混组合物和由其制造的热塑性薄膜结构具有改进的物理性能，其包含基于聚烯烃重量含有少量的聚烯烃（例如聚丙烯），并足以提高由这种共混物制成的薄膜的热封特性， 通常为固体，树脂，无规共聚物，其包含戊二烯，1,3和至少一种含有可与其共聚的烯属不饱和度的其它烃化合物的混合物。 这种烯属不饱和烃的实例包括环戊二烯，异戊二烯，2-甲基丁烯-2，叔丁基苯乙烯，β-蒎烯，二戊烯，β-胡椒醛，α-甲基苯乙烯及其混合物。

    Polyethylene block-graft copolymers and method for preparing the same
    9.
    发明授权
    Polyethylene block-graft copolymers and method for preparing the same 失效
    聚乙烯嵌段共聚物及其制备方法

    公开(公告)号：US3789085A

    公开(公告)日：1974-01-29

    申请号：US3789085D

    申请日：1971-11-30

    申请人： TOYO SEIKAN KAISHA LTD

    发明人： KISIMOTO A ,  HIRATA S ,  UENO H

    IPC分类号： C08L23/00 ,  C08G81/02 ,  C08K5/14 ,  C08L1/00 ,  C08L7/00 ,  C08L21/00 ,  C08L27/00 ,  C08L33/00 ,  C08L33/02 ,  C08L57/00 ,  C08L101/00 ,  C08F29/12

    CPC分类号： C08G81/021

    摘要： The present invention provides a block-graft copolymer of polyethylene and saponified ethylene vinyl acetate with improved moisture permeability by heating a mixture of polyethylene and a saponified ethylene-vinyl acetate copolymer to an elevated temperature and kneading the mixture under pressure. The saponified ethylene-vinyl acetate copolymer has a degree of saponification of 99% or more and consists of from 30 to 50 mol percent of ethylene, the remainder being vinyl acetate, the polyethylene being a powdery high density polyethylene which has not been subjected to heating and kneading after polymerization, the mixture containing the high density polyethylene and the saponified ethylene-vinyl acetate copolymer at a weight ratio of 98:2 to 80:20 and from 0.2 to 0.6 percent by weight based on the weight of the mixture, of a radical forming catalyst, and the mixture being heated to a temperature of from 200* to 205*C and kneaded under a pressure of 330 to 470 kg/cm2.

    摘要翻译： 本发明通过将聚乙烯和乙烯 - 乙酸乙烯酯共聚物的混合物加热至高温并在压力下捏合该混合物，提供聚乙烯和皂化的乙烯 - 乙酸乙烯酯的嵌段共聚物，其具有改善的透湿性。 皂化乙烯 - 乙酸乙烯酯共聚物的皂化度为99％以上，由30〜50摩尔％的乙烯组成，其余为乙酸乙烯酯，聚乙烯为未加热的粉末状高密度聚乙烯 在聚合后捏合，含有高密度聚乙烯和皂化乙烯 - 乙酸乙烯酯共聚物的混合物的重量比为98:2至80:20和0.2至0.6重量％，基于混合物的重量， 自由基形成催化剂，将混合物加热至200〜205℃的温度，在330〜470kg / cm2的压力下进行混炼。