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338 条记录 (耗时 0.017 秒)

    High molecular weight stereoregular polymers from olefin oxides and sulfides
    41.
    发明授权
    High molecular weight stereoregular polymers from olefin oxides and sulfides 失效
    来自烯烃氧化物和硫化物的高分子量的常规聚合物

    公开(公告)号：US3632784A

    公开(公告)日：1972-01-04

    申请号：US3632784D

    申请日：1968-12-18

    申请人： GOODYEAR TIRE & RUBBER

    发明人： LAL JOGINDER

    IPC分类号： C08F4/50 ,  C08G65/12 ,  C08G75/08 ,  C08G23/14

    CPC分类号： C08G65/12 ,  C08G75/08

    摘要： OLEFIN OXIDES (OR SULFIDES) MAY BE POLYMERIZED WITH A CATALYST SYSTEM COMPRISED OF A MIXTURE OF I THE METALCONTAINING REACTION PRODUCT OF (A) AN ALCOHOL, PHENOL OR MERCAPTAN AND (B) A METAL ALKYL THIOCARBONATE AND II AN ORGANOMETALLIC COMPOUND. THE RESULTING POLYMERS HAVE HIGHER MOLECULAR WEIGHT AND/OR HIGHER STEREOREGULARITY THAN THE POLYMERS OBTAINED IN THE ABSENCE OF THE ORGANOMETALLIC COMPOUND. POLYMERS OF PROPYLENE OXIDE PREPARED BY THE USE OF THIS CATALYST SYSTEM YIELD GUM VULCANIZATES HAVING TENSIL STRENGTH VALUES IN EXCESS OF 3500 P.S.I.

    Curable copolymers of episulfide monomers
    42.
    发明授权
    Curable copolymers of episulfide monomers 失效
    可溶性单体的可固化共聚物

    公开(公告)号：US3624055A

    公开(公告)日：1971-11-30

    申请号：US3624055D

    申请日：1964-05-18

    申请人： THIOKOL CHEMICAL CORP

    发明人： GOBRAN RIAD H ,  OSBORN STEPHEN W

    IPC分类号： C08G65/12 ,  C08G75/08 ,  C08G77/00 ,  C08G77/08 ,  C08G77/48 ,  C08G77/50 ,  D21H19/32 ,  C08F25/00 ,  C08G23/00 ,  C08G25/00

    CPC分类号： C08G65/12 ,  C08G75/08 ,  C08G77/00 ,  C08G77/08 ,  C08G77/48 ,  C08G77/50 ,  D21H19/32

    摘要： Copolymers essentially composed of a major portion of monomeric units derived from one or more monomers which are free from ethylenic unsaturation, have at least three carbon atoms and have a polymerizable thiiranyl group; and a minor portion of monomeric units derived from one or more monomers having both a polymerizable thiiranyl group and a polymerizable ethylenically unsaturated group are disclosed. The monomers free from ethylenic unsaturation may be, for example, ethylene sulfide, propylene sulfide, the 1,2- and 2,3-butylene sulfides, vinyl cyclohexane sulfide, 2-benzyl thiirane, paramethyl styrene episulfide, styrene sulfide, cyclohexene episulfide, and isobutylene sulfide. The ethylenically unsaturated monomers may be, for example, allylthioglycidyl ether, thioglycidyl acrylates, thioglycidyl alkacrylates such as thioglycidyl methacrylate, vinyl cyclohexene episulfide, and butadiene monoepisulfide. The monomers are polymerized through the thiiranyl groups thereof. The copolymers can be cured through the ethylenically unsaturated groups thereof to produce elastomers having good physical properties and solvent resistance.

    Process for polymerizing cyclic oxides with a catalyst consisting of an organozinc compound and another material
    44.
    发明授权
    Process for polymerizing cyclic oxides with a catalyst consisting of an organozinc compound and another material 失效
    用含有ORGANOZINC化合物的催化剂和其他材料聚合环氧化物的方法

    公开(公告)号：US3598765A

    公开(公告)日：1971-08-10

    申请号：US3598765D

    申请日：1967-05-04

    申请人： GEN TIRE AND RUBBER CO THE

    发明人： ACHON MARCO A

    IPC分类号： C08G59/40 ,  C08G59/44 ,  C08G65/12

    CPC分类号： C08G59/44 ,  C08G59/40 ,  C08G65/12

    摘要： A PROCESS IS DISCLOSED FOR MAKING POLYETHERS WHICH COMPRISES MIXING UNDER ANHYDROUS NON-OXIDIZING CONDITIONS (A) AT LEAST ONE COMPOUND OF THE FORMULA ZNR2 IN WHICH EACH R IS A MONOVALENT HYDROCARBON RADICAL, AT LEAST ONE R BEING NON-AROMATIC, FROM ABOUT 0.05 TO ABOUT 1.5 MOLS PER MOL OF (A) OF (B) OF AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF PROMARY AROMATIC AMINES, AMIDES, CYCLOALKADIENES OF FROM 5 TO 6 CARBON ATOMS AND SECONDARY AMINES COMPOSED OF AT LEAST ONE NITROGEN ATOM, FROM ABOUT 2 TO ABOUT 14 CARBON ATOMS PER NITROGEN ATOM AND AT LEAST 6 TOTAL HYDROGEN ATOMS PER NITROGEN ATOM,ANY REMAINING STOMS IN THE SECONDARY AMINES BEING SELECTED FROM THE GROUP CONSISTING OF ETHEREAL OXYGEN ATOMS, HYDROXYL OXYGEN ATOMS AND THIOTHEREAL SULFUR ATOMS, ANY NITROGEN ATOM HAVING TWO AROMATIC RINGS ATTACHED THERETO BEING PART OF A CYCLIC AMINO COMPOUND, AND FROM AOBUT 10 TO ABOUT 10,000 MOLS PER MOL OF (A) AND (B) OF (C) AT LEAST ONE POLYMERIZABLE ORGANIC CYCLIC OXIDE MONOMER INCLUDING IN ITS STRUCTURE AT LEAST ONE OXYGEN-CARBON RING CONTAINING ONE OXYGEN ATOM AND FROM 2 TO 3 CARBON ATOMS AND UP TO 70 CARBON ATOMS, AND THEN, AT A TEMEPERATURE SUFFICIENT OF EFFECT POLYMERIZATION, POLYMERIZING SAID CYCLIC OXIDE MONOMER THROUGH SAID OXYGEN-CARBON RING WHEREBY SAID RING OPENS TO FORM SUBSTANTIALLY LINEAR POLYETHER STRUCTURES. THESE POLYMERS ARE USEFUL AS PLASTICIZERS, IN MAKING COATED FABRICS, PACKING FILMS, ELASTIC FIBERS, AND ADHESIVES AS WELL AS IN MAKING TIRES, SHOE HEELS, RAINCOATS, UPHOLSTERY MATERIAL, FLOOR MATS AND MOLDED ARTICLES.