Method for producing hydrocarbon resins and hydrogenation products thereof
AssigneeRain Carbon Germany GmbH
InventorsJun Liu, Manuel Nau
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Abstract
In a method for the manufacture of a hydrocarbon resin made of at least one cyclic diolefin component and at least one ethylenically unsaturated aromatic component having 8 to 13 carbon atoms, the monomer mixture is heated to a polymerisation temperature of at least 180° C. at a heating speed of 0.5 to 10° C./second to obtain a hydrocarbon resin with a reduced amount of by-products, wherein the monomer mixture is essentially liquid in a single phase during the heating to at least 180° C. and during polymerisation, and the subsequently hydrogenated hydrocarbon resin has good compatibility with other components of hot-melt adhesives.
Claims17
A method for manufacturing a hydrocarbon resin comprising at least one cyclic diolefin monomer component and at least one ethylenically unsaturated aromatic monomer component comprising
- (a) heating to a temperature of at least 180° C. at a heating rate of 0.5 to 10° C./second a mixture comprising at least one cyclic diolefin monomer component and at least one ethylenically unsaturated aromatic monomer component having 8-13 carbon atoms, and
- (b) polymerizing the mixture to form a hydrocarbon resin having a molecular weight of less than 2,500 g/mol, the molecular weight characterized as the centrifuge average (z-average) molecular weight,
- wherein the mixture comprises a single phase liquid during heating and polymerization.
Dependencies are inferred from the claim text.