Low temperature resilient composition having sealant and caulking utilities
    2.
    发明授权
    Low temperature resilient composition having sealant and caulking utilities 失效
    具有密封剂和固化剂的低温弹性体组合物

    公开(公告)号:US3817904A

    公开(公告)日:1974-06-18

    申请号:US31138172

    申请日:1972-12-01

    Inventor: GAGLE D DRAPER H

    Abstract: COMPOSITION COMPRISES ESSENTIALLY (A) AN AMORPHOUS POLYPROPYLENE, AS CAN BE OBTAINED IN PRODUCTION OF CRYSTALLINE POLYPROPYLENE, WHICH CAN CONTAIN UP TO ABOUT 5 PERCENT ETHYLENE IN THE POLYMER, THE POLYMER BEING SOLUBLE IN LOW BOILING SATURATED HYDROCARBONS HAVING UP TO ABOUT FIVE CARBON ATOMS IN THE MOLECULE, (B) A RUBBER BLOCK COPOLYMER OF BUTADIENE-STYRENE IN APPROXIMATE RATIOS OF FROM 60:40 TO 80:20, RESPECTIVELY IN SOLUTION IN AROMATIC EXTENDER OIL CONTAINING APPROXIMATELY 40-65 PERCENT WEIGHT OF THE RUBBER COPOLYMER, (C) ASBESTOS FIBERS, PREFERABLY SHORTS, IN FOLLOWING APPROXIMATE WEIGHT PERCENT PROPORTIONS: AMORPHOUS POLYPROPYLENE, 25-40, RUBBER/OIL BLEND, 45-25, ASBESTOS FIBERS, 30-35, THE COMPOSITION BEING APPLIED USUALLY BY ADJUSTING TO REQUIRED CONSISTENCY WITH HYDROCARBON SOLVENT, E.G. STODDARD SOLVENT, SAY 5-10 WEIGHT PERCENT OF SOLVENT ADDED TO COMPOSITION FOR CAULKING AND SAY 10-20 WEIGHT PERCENT ADDED FOR SPRAY APPLICATION AS SEALANT. THE APPLIED COMPOSITION RETAINS RESILIENCY AND ADHESION OVER A WIDE RANGE OF TEMPERATURE E.G. -40 TO 140*F. AND IS USEFUL TO SEAL AGAINST MOISTURE, ETC, CEMENT SURFACES, ASPHALT-CONCRETES, CRACKS, JOINTS, LEAKS AND TO RENDER THE RESISTENT TO CHEMICAL ATTACKS.

    Asphalt rubberizing compositions
    4.
    发明授权
    Asphalt rubberizing compositions 失效
    沥青橡胶组合物

    公开(公告)号:US3779964A

    公开(公告)日:1973-12-18

    申请号:US3779964D

    申请日:1971-10-08

    CPC classification number: C08L95/00

    Abstract: THE LOW TEMPERATURE DUCTILITY OF ASPHALTS IS IMPROVED BY INCORPORATION OF A SMALL AMOUNT OF A BLEND COMPRISING RUBBER, A HEAVY RESIDUAL PETROLEUM OIL HIGH IN AROMATICS, AND CARBON BLACK. ASPHALTS CONTAINING A LIQUID OIL-RUBBERCARBON BLACK BLEND CAN BE USED IN PAVING COMPOSITIONS AND THE LIKE.

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