Substantially solvent free asphaltic and method relating thereto
US5008311A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 17, 1989 |
| Grant date | Apr 16, 1991 |
| Priority date | — |
| Expiry date | Mar 17, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L95/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
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: EQU CH.sub.3 --(C.sub.n H.sub.2n)--R.sub.1 wherein: PA1 n is 4 or more, and PA1 R.sub.1 is COOH, COO.sup.- M.sup.+, COOR.sub.2 or R.sub.2, PA1 wherein: PA2 M is a metal, and PA2 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.