Diisocyanates
    1.
    发明授权
    Diisocyanates 失效
    DIISOCYANATES

    公开(公告)号:US3591590A

    公开(公告)日:1971-07-06

    申请号:US3591590D

    申请日:1970-03-09

    申请人: CIBA LTD

    摘要: NEW 1,3-DI-($-ISOCYANATOPROPYL)-HYDANTOINS AND -DIHYURACILS, FOR EXAMPLE 1,3-DI-($-ISOCYANATOPROPYL)-5,5-DIMETHYLHYDANTOIN OR 1,3-DI-($-ISOCYANATOPROPYL)5,5-DIMETHYL-5,6-DIHYDROURACIL AND THEIR USE FOR THE MANUFACTURE OF POLYURETHANES BY REACTION WITH POLYHYDROXYL COMPOUNDS. THE NEW DIISOCYANATES ARE COMPLETELY ODOURLESS; IRRITATION OF THE MUCUS MEMBRANES WAS NOT DETECTABLE; THEY ARE THEREFORE PREDERABLY USED IN THE LAQUER FIELD. THE NEW DIISOCYANATES REACT SIGNIFICANTLY MORE RAPIDLY WITH PRIMARY ALCOHOLS THAN DO ALIPHATIC DIISOCYANATES, FOR EXAMPLE 1,6-HEXAMETHYLENEDIISOCYANATE, AND ON THE OTHER HAND MORE SLOWLY THAN AROMATIC DIISOCYANATES, FOR EXAMPLE, 1,4-TOLUYLENEDIISOCYANATE.

    Thermocurable polyester-diepoxide compositions
    6.
    发明授权
    Thermocurable polyester-diepoxide compositions 失效
    可热固化的聚酯 - 二氧化物组合物

    公开(公告)号:US3641194A

    公开(公告)日:1972-02-08

    申请号:US3641194D

    申请日:1969-02-04

    申请人: CIBA LTD

    摘要: CRYSTALLINE POLYMERS ARE PREPARED BY THE FORMATION OF ADDUCTS FROM DIEPOXIDES, PREFERABLY DIGLYCIDYL ETHERS OF DIPHENOLS, SUCH AS BISPHENOL A AND ACID POLYESTER OF SUCCINIC ACID AND 1,4-BUTANEDIOL (THE RECURRENT STRUCTURAL UNIT OF THE FORMULA-0-(CH2)4-OCO(CH2)2-COMUST OCCUR AT LEAST SIX TIMES IN THE CHAIN). THE RATIO OF EPOXIDE GROUPS OF THE DIEPOXIDE TO CARBOXYL GROUPS OF THE POLYESTER IS 1:07 TO 1.2, PREFERABLE ABOUT 1:1. ADVANTAGEOUSLY, A PORTION OF THE DICARBOXYLIC ANHYDRIDES (FOR EXAMPLE A DODECENYLSUCCINIC ANHYDRIDE) IS CONCOMITANTLY USED AS CHAIN CROSS-LINKING AGENT. OF ADVANTAGE IS FOR EXAMPLE AN EQUIVALENT RATIO OF 1.3 EPOXIDE GROUP: 190 CARBOXYL GROUP+0.2 ANHYDRIDE GROUP. AFTER STRETCHING, THE POLYMERS HAVE A TENSILE STRENGTH OF 7001000 KG./CM.2 AND AN ELONGATION AT BREAK OF 50-150%. ABOVE THE CRYSTALLIZATION TRANSITION TEMPERATURE, THEY ARE RUBBER-ELASTIC. THEY ARE USED, FOR EXAMPLE, AS POTTING AND SEALING COMPOUNDS OR FOR THE MANUFACTURE OF FIBERS, RIBBONS, FOILS.

    Advanced addition products containing terminal epoxide groups
    7.
    发明授权
    Advanced addition products containing terminal epoxide groups 失效
    含有末端环氧化物组合的高级添加剂

    公开(公告)号:US3640910A

    公开(公告)日:1972-02-08

    申请号:US3640910D

    申请日:1969-04-02

    申请人: CIBA LTD

    IPC分类号: C08G59/10 C08G65/28 C08G30/00

    CPC分类号: C08G59/10

    摘要: NEW, SO-CALLED "ADVANCED" ADDUCTS CONTAINING EPOXIDE GROUPS, FROM POLYEPOXIDE COMPOUNDS CONTAINING ON AN AVERAGE MORE THAN ONE EPOXIDE GROUP IN THE MOLECULE AND MONONUCLEAR, FIVE- OR SIX-MEMBERED, UNSUBSTITUTED OR SUBSTITUTED N-HETEROCYLIC COMPOUND WHOSE MOLECULE CONTAINS TWO ENDOCYCLIC NH GROUPS, AND LESS THAN ONE EQUIVALENT NH GROUP FOR EVERY EPOXIDE GROUP EQUIPVALENT OF THE POLYEPOXIDE COMPOUND, OBTAINED BY REACTION OF FOR EXAMPLE 2 MOLS OF DIOMETHANEDIGLYCIDYL EHTER AND 1 MOL OF 5,5-DIMETHYLHYDANTOIN. THE EPOXIDE RESINS "ADVANCED" WITH THE AID OF SUCH NITROGEN COMPOUNDS HAVE A GOOD STORAGE STABLITY IN ADDITION TO EXCELLENT ELECTRICAL PROPERTIES.