Substantially solvent free asphaltic and method relating thereto
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United States of America Patent
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Apr 16, 1991
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N/A
app pub date -
Mar 17, 1989
filing date -
Mar 17, 1989
priority date (Note) -
Expired
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Abstract
The present invention relates to a compatibalizing agent useful in compatibalizing a substantially non-polar compound, such as asphalt, with a substantially polar organic compound, such as an isocyanate prepolymer. The compatibalizing agent consisting of a polymer unit, or of two such units being either identical or different linked together by an ester, carbon or ether bond, said unit having the following formula: CH.sub.3 --(C.sub.n H.sub.2n)--R.sub.1 wherein: n is 4 or more, and R.sub.1 is COOH, COO.sup.- M.sup.+, COOR.sub.2 or R.sub.2, wherein: M is a metal, and R.sub.2 is a substantially saturated organic chain having a backbone substantially comprising carbon-carbon, carbon-oxygen, or carbon-nitrogen linkages, or combinations thereof, wherein the backbone's pendent constituents are either --H or --OH and wherein at least one pendent constitutent is --OH.
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