摘要:
Impregnating compositions for impregnating flexible sheet materials of a fibrous character, the composition being a mixture of elastomeric material and copolymeric material that imparts pliability and softness to the impregnated fibrous material and in which the copolymeric material is an olefinic copolymer.
摘要:
METHOD OF INCORPORATING AN ELASTOMER INTO ASPHALT BY TREATING THE ASPHALT PAVEMENT WITH AN EMULSION HAVING AN EXTERNAL WATER PHASE AND AN OIL PHASE CONTAINING A DISSOLVED ELASTOMER, THE OIL PREFERABLY HAVING AN INITIAL BOILING POINT OF NOT SUBSTANTIALLY LESS THAN 300*C. AT 760 MM. HG AND A VISCOSITY OF ABOVE ABOUT 50 SUS AT 210*F., THE OIL BEING MUTUALLY COMPATIBLE WITH THE ASPHALT AND THE ELASTOMER.