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10 条记录 (耗时 0.011 秒)

    Urea- and melamine- formaldehyde bridging agents
    1.
    发明授权
    Urea- and melamine- formaldehyde bridging agents 失效
    尿素和甲苯胺 - 甲醛桥联剂

    公开(公告)号：US3715172A

    公开(公告)日：1973-02-06

    申请号：US3715172D

    申请日：1971-01-12

    申请人： NALCO CHEMICAL CO

    发明人： DEMBOWSKI R ,  SCHUH T

    IPC分类号： C08L21/00 ,  C08C9/16 ,  C08D9/10 ,  C08G37/32

    CPC分类号： C08L21/00 ,  C08L2666/16

    摘要： Method and composition for a dry mix utilizing a natural or synthetic rubber stock containing a non-reinforcing filler and about 0,1 to 10 phr of an aminoplast polymer optimally modified by about 5-20 molar per cent of a polyamine.

    摘要翻译： 使用含有非增强填料的天然或合成橡胶原料的干混合物的方法和组合物，以及约0.1至10phr最佳地修饰约5-20摩尔％多胺的氨基塑料聚合物。

    Rubber-polyester compositions
    2.
    发明授权
    Rubber-polyester compositions 失效
    橡胶聚酯组合物

    公开(公告)号：US3692711A

    公开(公告)日：1972-09-19

    申请号：US3692711D

    申请日：1970-10-05

    申请人： ICI LTD

    发明人： EATON DAVID CRAWFORD ,  LEYLAND BORIS NICHOLAS

    IPC分类号： C08J5/10 ,  C08C9/16 ,  C08D9/10 ,  C08G39/10

    CPC分类号： C08J5/10 ,  C08J2321/00

    摘要： COMPOSITONS CONTAINING RUBBER IN CONTACT WITH POLYESTER MATERIAL, ESPECIALLY VULCANISED COMPOSITION, ARE STABILISED AGAINST THERMAL DEGRADATION OF THE POLYESTER BY INCORPORATION OF A HALOGEN-SUBSTITUTED HETEROCYCLIC COMPOUND CONTAINING IN ONE AROMATIC HETEOCYCLIC RING ONE OR TWO GROUPS OF THE FORMULAE

    -N=C(HALOGEN)-OR=N-C(HALOGEN)=

    THE PREFERRED COMPOUNDS ARE 2-CHLORO-S-TRIAZINES HAVING ALKYL-SUBSTITUTED AMINO GROUPS, OR ESPECIALLY UNSUBSTITUTED AMINO GROUPS, IN THE 4-AND 6-POSITIONS.

    Rubber reinforcing compositions comprising phenol/sulfur resins
    3.
    发明授权
    Rubber reinforcing compositions comprising phenol/sulfur resins 失效
    橡胶增强组合物包含酚醛树脂

    公开(公告)号：US3455851A

    公开(公告)日：1969-07-15

    申请号：US3455851D

    申请日：1968-09-23

    申请人： DISTILLERS CO YEAST LTD

    发明人： MEREDITH RUPERT FREDERICK KEIT ,  RISDON EDWARD JAMES

    IPC分类号： C08L21/00 ,  C08D9/10 ,  C08C9/16

    CPC分类号： C08L21/00 ,  C08K5/05 ,  C08K5/17 ,  C08K5/44 ,  C08L7/00 ,  C08L9/02 ,  C08L9/06 ,  C08L61/06 ,  C08L2666/14 ,  C08L2666/16

    摘要： Vulcanizable compositions comprise rubber, a free sulphur vulcanizing system and a rubber reinforcing composition comprising a formaldehyde donor and a reactive phenolic composition comprising a resin obtained by reacting phenol with sulphur or a sulphur chloride, the proportion of phenol/sulphur resin being 1 to 15% by weight of the rubber. The rubber may be natural rubber, polyisoprene, polybutadiene, polychloroprene, butadiene/styrene copolymer, butadiene/acrylonitrile copolymer, isobutylene/isoprene copolymer or ethylene/propylene/diene terpolymer. The formaldehyde donor may be hexamethylene tetramine, paraform, anhydroformaldehyde aniline resoles or melamine/formaldehyde resins. The reactive phenolic composition is essentially not heat advancing or self hardening, but reacts with the formaldehyde donor to form a thermoset product. If the phenol/sulphur resin does not so react a novolak must also be added, or the resin co-condensed through formaldehyde with a trifunctional phenol. The resin may be prepared by reacting phenols containing at least two free o or p positions with sulphur or a sulphur chloride under alkaline conditions. The reactive phenolic compositions preferably also contain a novolak resin. In examples styrene/butadiene, acrylonitrile/ butadiene and natural rubbers are vulcanized with reactive phenolic compositions comprising hexamethylene tetramine and (1) a phenol/sulphur resin, (2) a cresol/sulphur resin, (3) a phenol/sulphur resin and a cashew nut shell oil modified phenolic novolak, (4) a cresol/sulphur resin and a phenol/formaldehyde novolak, (5) a phenol/sulphur resin reacted with formaldehyde, (6) a phenol/sulphur resin reacted with formaldehyde and modified with partially polymerized cashew nut shell oil, (7) a cyclopentenyl phenol/sulphur resin reacted with formaldehyde, and then with phenol and formaldehyde, and (8) a resorcinol/sulphur resin.

    Vulcanized elastomeric blends containing a cyclic ester polymer
    5.
    发明授权
    Vulcanized elastomeric blends containing a cyclic ester polymer 失效
    包含循环酯聚合物的VULCANIZED弹性体混合物

    公开(公告)号：US3637544A

    公开(公告)日：1972-01-25

    申请号：US3637544D

    申请日：1969-04-01

    申请人： UNION CARBIDE CORP

    发明人： LUNDBERG ROBERT DEAN ,  KOLESKE JOSEPH VICTOR ,  WALTER EARL RICHARD

    IPC分类号： C08L21/00 ,  C08L67/04 ,  C08C9/16 ,  C08D9/08

    CPC分类号： C08L21/00 ,  C08L7/00 ,  C08L67/04 ,  C08L2666/14 ,  C08L2666/04 ,  C08L67/025

    摘要： WHEREINE EACH R'' IS SELECTED FROM THE CLASS CONSISTING OF, INDIVIDUALL, HYDROGEN, ALKYL, CYCLOALKYL, ARYL, AND CHLOROALKYL, AND, TOGETHER WITH THE ETHYLENE MOIETY OF THE OXYETHYLENE CHAIN OF UNIT 11, A SATURATED CYCLOALIPHATIC HYDROCARBON RING HAVING 4 TO 8 CARBON ATOMS, AND VULCANIZABLES THEREOF. THESE NOVEL VULCANIZABLE ELASTOMERIC COMPOSITIONS ARE USEFUL IN THE PRODUCTION OF MOLDED ARTICLES OF A VARIETY OF SHAPES AND FORMS AS, FOR EXAMPLE, FILMS, WIRE AND CABLE COATINGS, ARTICLES OF MANUFACTURE, AND THE LIKE, AND CAN BE VULCANIZED OR THERMOSET IN SUCH SHAPES AND FORMS.

    -(O-CH(-R'')-CH(-R''))-

    WHEREIN EACH R, INDIVIDUALLY, IS SELECTED FROM THE CLASS CONSISTING OF HYDROGEN, ALKYL, HALO, AND ALKOXY; A IS THE OXY GROUP; X IS AN INTEGER FROM 1 TO 4; Y IS AN INTEGER FROM 1 TO 4; Z IS AN INTEGER OF ZERO OR ONE; WITH THE PROVISOS THAT (A) THE SUM OF X+Y+Z IS AT LEAST 4 AND NOT GREATER THAN 7, AND (B) THE TOTAL NUMBER OR R VARIABLES WHICH ARE SUBSTITUENTS OTHER THAN HYDROGEN DOES NOT EXCEED 3, AND UP TO A MINOR MOLAR AMOUNT OF RECURRING UNITS OF THE FORMULA:

    -(O-(C(-R)2)X-(A)Z-(C(-R)2)Y-CO)-

    VULCANIZABLE ELASTOMERIC BLENDS HAVING IMPROVED PROCESSABILITY, ADDITIVE ACCEPTANCE, IMPROVED STRENGHTS IN THE VULCANIZED FORM, IMPROVED CREEP RESISTANCE IN THE UNVULCANIZED FORM, IMPROVED HANDLING AND FORMING CHARACTERISTICS IN THE UNVULCANIZED FORM AND/OR IMPROVED STIFFNESS, OR IN SOME CASES IMPROVED FLEXIBILITY, IN THE UNCURED AND CURED FORMAS, CONTAINING A VULCANIZABLE RUBBER GUMSTOCK HAVING SUBSTANTIAL, REIDUAL, ETHYLENIC UNSATURATION AND A CYCLIC ESTER POLYMER CONTAINING RECURRING UNITS OF THE FORMULA:

    Alkylphenol-aldehyde resins
    8.
    发明授权
    Alkylphenol-aldehyde resins 失效
    烷基酚醛树脂

    公开(公告)号：US3674723A

    公开(公告)日：1972-07-04

    申请号：US3674723D

    申请日：1970-02-03

    申请人： PENNSYLVANIA IND CHEM CORP

    发明人： VREDENBURGH WALTER A ,  HOLLIS SAMUEL D

    IPC分类号： C08L21/00 ,  C08C9/04 ,  C08C9/16

    CPC分类号： C08L21/00 ,  C08L2666/16

    摘要： A rubber composition is provided having a high degree of tack in the uncured state and incorporating a para-tertiary-butylphenolaldehyde novolak resin consisting essentially of recurring groups A and B of the

    WHEREIN R1 is a alkyl; and R2 is a hydrocarbon radical having 1 to 4 carbon atoms; and wherein the molar ratio of B:A has a value in the range of 0.1 to 0.3.