Bonding composition containing a blocked isocyanate
    6.
    发明授权
    Bonding composition containing a blocked isocyanate 失效
    含有嵌段异氰酸酯的结合组合物

    公开(公告)号:US3745138A

    公开(公告)日:1973-07-10

    申请号:US3745138D

    申请日:1968-08-14

    Abstract: GROUPS WHERE R IS ANY ALIPHATIC OR AROMATIC ORGANIC RADICAL AND A THERMOPLASTIC RESIN HAVING A PLURALITY OF HYDROXYL GROUPS. THIS RESINOUS PRODUCT IS SOLUBLE IN A SOLVENT TO THE EXTENT THAT ARTICLE MAY BE COATED OR IMPREGNATED WITH THE RESINOUS COMPOSITION BY CONVENTIONAL DIPPING OR WIPING FOLLOWED BY SOLVENT EVAPORATION. ARTICLES COATED WITH THE RESINOUS PRODUCT CAN BE BONDED TOGETHER BY SOFTENING THE PRODUCT EITHER BY HEATING THE RESINOUS COATING TO TEMPERATURES ABOVE ITS SOFTENING POINT OR BY APPLYING SELECTIVE SOLVENTS TO THE RESINOUS COATING. THE SIGNIFICANT FEATURE OF THE NEW RESINOUS PRODUCT IS THAT THE RESINOUS PRODUCT CAN THEN BE THERMOSET, IF DESIRED. IN SPECIFIC APPLICATIONS, THE NEW RESINOUS PRODUCT CAN BE USED AS A MAGNET WIRE ENAMEL AND A CEMENT FOR BONDING COATED ARTICLES INTO VARIOUS SELF-SUPPORTING AND INTEGRAL STRUCTURES FOR EXAMPLE COILS MADE OF MAGNET WIRE, AND OTHER FIXED FORMS MADE OF FIBROUS MATERIALS SUCH AS PAPER OR CLOTH MATERIALS INCLUDING TEXTILES AND NONWOVEN MATERIALS IMPREGNATED WITH THE RESINOUS PRODUCT OF THIS INVENTION OR FURTHER AS AN ADHESIVE THAT CAN BE THERMOSET BY THE METHOD OF THE INVENTION. THE METHOD OF THE INVENTION, IN THE SPECIFIC EMBODIMENT RELATING TO MAGNET WIRE, INCLUDES THE STEPS OF COMBINING THE RESIN AND COMPOUND ABOVE-MENTIONED TO FORM A RESINOUS PRODUCT, PREPARING A SOLUTION OF THE RESINOUS PRODUCT, COATING A CONDUCTOR WITH THE RESINOUS PRODUCT IN A CONVENTIONAL MANNER WHICH INCLUDES THE BAKING OF THE COATED CONDUCTOR TO REMOVE THE SOLVENT THEREFROM, FORMING A COIL OF THE MAGNET WIRE COATED WITH THE PRODUCT, AND BONDING ADJACENT PORTIONS OF MAGNET WIRE TOGETHER TO FORM A BONDED COIL PRODUCT. THIS LATTER STEP CAN BE PERFORMED BY USING ADDITIONAL SOLVENT OR BY HEATING THE COIL IN A SELECTED MANNER WHICH MAY RESULT IN THE RESINOUS PRODUCT EITHER REMAINING THERMOPLASTIC OR BECOMING THERMOSET, AS DESIRED.

    -NH-COO-R

    A RESINOUS BONDING COMPOSITION WHICH IS A COMBINATION OF A COMPOUND HAVING A PLURALITY OF

    High solids methylated urea-formalde-hyde coating compositions
    7.
    发明授权
    High solids methylated urea-formalde-hyde coating compositions 失效
    高固含量甲基化尿素 - 甲醛涂料组合物

    公开(公告)号:US3776879A

    公开(公告)日:1973-12-04

    申请号:US3776879D

    申请日:1972-01-31

    Inventor: BLANK W

    CPC classification number: C09D161/32

    Abstract: THERE ARE PROVIDED HIGH SOLIDS METHYLATED UREA-FORMALDEHYDE RESIN COMPOSITIONS COMPRISING (1) AT LEAST 80%, BY WEIGHT, OF A BLEND OF (A) LIQUID OR SYRUPY METHYLATED UREA-FORMALDEHYDE RESINS COMPOSED OF UREA, FORMALDEHYDE, AND METHANOL IN 1:2-3:1-2.5 MOLAR RATIO, RESPECTIVELY, AND (B) A MONOFUNCTIONAL BRANCHED-CHAIN ALIPHATIC ALCOHOL WHEREIN THE ALCOHOL IS PRESENT IN AN AMOUNT EQUAL TO FROM 30% TO 70% OF THE OVERAL BLEND AND (2) THE BALANCE, THAT IS, NOT MORE THAN, 20%, BY WEIGHT, IF DESIRED, BEING A SUITABLE SOLVENT FOR SAID BLEND. THE COMPOSITION, WHEN APPLIED AS A COATING TO A METAL OR WOOD SUBSTRATE AND HEATED, WILL RENDER THE SURFACE SUBSTANTIALLY FREE FROM PINHOLES, CRAWLING, AND CRATERING.

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