Petroleum oil derived hydrocarbon resins are another important class of hydrocarbon resins worth mentioning. They are derived from unsaturated hydrocarbon monomers obtained from cracking of petroleum oil. Polymerization of these monomers results in a complex mixture of various low MW copolymers and homopolymers known as petroleum — based hydrocarbon resins. Based on monomer composition in the feedstock, various grades are available ranging from liquids to hard and brittle solids. Their performance characteristics are very similar to other hydrocarbon resins and they are useful modifiers for various conventional coating systems as well as low VOC, high-solid systems.
Petroleum oil derived hydrocarbon resins
30 октября, 2015 Pokraskin