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61 条记录 (耗时 0.014 秒)

    Process for isolation of solid polymers
    1.
    发明授权
    Process for isolation of solid polymers 失效
    固体聚合物分离方法

    公开(公告)号：US4239884A

    公开(公告)日：1980-12-16

    申请号：US603635

    申请日：1975-08-11

    申请人： Klaus J. Dahl

    发明人： Klaus J. Dahl

    IPC分类号： C08G75/00 ,  C08G61/12 ,  C08G65/40 ,  C08G67/00 ,  C08G75/20 ,  C08G75/23 ,  C08G33/10

    CPC分类号： C08G65/4012 ,  C08G61/127 ,  C08G75/20 ,  C08G75/23

    摘要： In a Friedel-Crafts catalyzed polymerization reaction, said reaction being selected from the group consisting ofn(X--A--X)+n(H--B--H).fwdarw.2n-1HX+X(AB).sub.n Hwherein A is ##STR1## and wherein X is halogen, hydroxy, or alkoxy, and wherein R is alkylene, aryl substituted alkylene, arylene or substituted arylene, or polynuclear aromatic either fused ring or joined by one or more bridging groups such as oxygen, sulfur or a moiety of the structure ##STR2## wherein Z is propylidene, CO, SO.sub.2, or a chemical bond and wherein B is arylene or substructured arylene, or polynuclear aromatic either fused ring or joined by one or more bridging groups such as CO, oxygen, sulfur or a moiety of the structure ##STR3## wherein Z is as defined above, and wherein n is the degree of polymerization and is at least about 5 andn(XDH).fwdarw..sub.n-1 HX+X(D).sub.n Hwherein X is as defined above and wherein D is CO--B-- or --SO.sub.2 --B-- wherein B is as defined above wherein said polymerization results in the formation of a complex between said Friedel-Crafts catalyst and polymer produced by said reaction and wherein said polymerization reaction is carried out in a solvent, said solvent being present in an amount at least sufficient to dissolve the monomeric species present at the start of said polymerization, the improvement comprising treating said reaction mixture comprising polymer-catalyst complex and solvent with a base having a pK.sub.a of at least about 4.5 as measured in water in an amount at least equimolar to the catalyst present, said base being at least partially soluble in said reaction solvent, being stable in said polymerization reaction medium and not forming a stable adduct with said polymer products to thereby decompose said polymer-catalyst complex and form a base-catalyst complex.

    摘要翻译： 在Friedel-Crafts催化聚合反应中，所述反应选自n（XAX）+ n（HBH） - > 2n-1HX + X（AB）nH，其中A为＆lt; IMAGE＆gt;其中X为卤素， 羟基或烷氧基，并且其中R是亚烷基，芳基取代的亚烷基，亚芳基或取代的亚芳基，或多环芳香族稠合环，或者通过一个或多个桥连基团如氧，硫或结构部分结合，其中Z 是亚丙基，CO，SO 2或化学键，并且其中B是亚芳基或亚基亚芳基，或多环芳香族稠合环或通过一个或多个桥基如CO，氧，硫或结构部分连接的“ 其中Z如上所定义，并且其中n是聚合度并且为至少约5且n（XDH） - > n-1HX + X（D）nH其中X如上所定义，其中D是CO-B - 或-SO 2 -B-，其中B如上所定义，其中所述聚合导致所述Friede之间形成络合物 所述的聚合反应在溶剂中进行，所述溶剂的存在量至少足以溶解所述聚合开始时所存在的单体种类，其改进在于处理所述的 包含聚合物 - 催化剂络合物和溶剂的反应混合物与碱存在至少约4.5的碱，所述碱在水中以与存在的催化剂至少等摩尔的量测量，所述碱至少部分可溶于所述反应溶剂，在 所述聚合反应介质并不与所述聚合物产物形成稳定的加合物，从而分解所述聚合物 - 催化剂络合物并形成碱催化剂络合物。

    Metal compounds of polycarbamoylamidrazones
    4.
    发明授权
    Metal compounds of polycarbamoylamidrazones 失效
    聚碳酸亚胺的金属化合物

    公开(公告)号：US3845014A

    公开(公告)日：1974-10-29

    申请号：US20842771

    申请日：1971-12-15

    申请人： AKZONA INC

    发明人： FRANK D ,  BRODOWSKI W ,  HENTSCHEL P

    IPC分类号： C08G18/38 ,  C08G73/00 ,  C08G22/02 ,  C08G33/10

    CPC分类号： C08G18/3819 ,  C08G73/00

    摘要： 1. THE CHELATED REACTION PRODUCT OBTAINED BY METALLIZING (A) A POLYCARBAMOYLAMIDRAZONE CONSISTING ESSENTIALLY OF RECURRING UNITS OF TH FORMULA

    -(N(-R1)-N=C(-NH-R")-R-C(-NH-R")=N-N(-R'')-CO-NH-R"''-NH-

    CO)-

    WHEREIN R IS A DIRECT CHEMICAL BOND, ALKYLENE OF 3 TO 10 CARBON ATOMS OR ARYL, R'' REPRESENTS HYDROGEN OR METHYL, R'''' REPRESENTS HYDROGEN OR PHENYL AND R'''''' IS A DIVALENT ORGANIC RADICAL HAVING AN ESSENTIALLY HYDROGEN STRUCTURE OF 2 UP TO ABOUT 14 CARBON ATOMS, BY CHELATING REACTION WITH (B) AT LEAST ONE METAL SELECTED FROM THE CLASS CONSISTING OF METALS OF GROUPS IIA, IIIA, IVA, VA, VIII, IB, IIB, IIB, IVB AND VB OF THE LONG PERIODIC SYSTEM OF ELEMENTS, SAID METAL BEING IN THE FORM OF A COMPOUND THEREOF DISSOLVED IN WATER OR AN ORGANIC SOLVENT, AND SAID REACTION BEING CARRIER OUT AT TEMPERATURE BETWEEN ABOUT ROOM TEMPERATURE AND THE BOILING POINT OF THE SOLUTION.

    Curable epoxy resin compositions and method of preparing same
    7.
    发明授权
    Curable epoxy resin compositions and method of preparing same 失效
    可固化的环氧树脂组合物及其制备方法

    公开(公告)号：US3630997A

    公开(公告)日：1971-12-28

    申请号：US3630997D

    申请日：1970-05-04

    申请人： CRAVEN PAUL M

    发明人： CRAVEN PAUL M

    IPC分类号： C08G59/66 ,  C08G33/10

    CPC分类号： C08G59/66

    摘要： THIS INVENTION RELATES TO NOVEL EPOXY RESIN COMPOSITIONS AND TO CURED PRODUCTS OBTAINED THEREFROM. MORE PARTICULARLY, IT RELATES TO CURABLE EPOXY RESIN COMPOSITIONS CONTAINING AN EPOXY RESIN HAVING A PLURALITY OF 1,2 EPOXIDE UNITS, FROM ABOUT 25 TO 200 PARTS PER 100 PARTS OF EPOXY RESIN OF A THIOALKYL SUBSTITUTED DIPHENYL OXIDE CURING AGENT AND FROM ABOUT 0.05 TO 15 PARTS PER 100 PARTS OF EPOXY RESIN OF THE ACCELERATOR TETRAMETHYL GUANIDINE.