Method for improving the strength of bitumen, asphalt or a similar material, and a composition obtained by the method
AssigneeO. Pinomaa Ky
InventorOlli L. Pinomaa
Life of this patent
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Abstract
The invention relates to a method for improving the properties of bitumen, asphalt, or a similar material by adding to it a thermoplastic or a thermoelastomer, the solubility and compatibility of the thermoplastic or thermoelastomer being improved by a third component, which is wood resin, turpentine resin, a derivative of these, tall oil, tall-oil pitch, or a constituent or mixture of these. The obtained composition of bitumen, asphalt or a similar material can be used as a binding agent in road pavement materials.
Claims16
A method for improving the properties of pavement bitumen, asphalt, road oil, road tar or pitch heating to approximately 150.degree. to 270.degree. C. and intermixing the following components:
- a) a thermoplastic polymer and b) bitumen, asphalt, road oil, road tar or pitch characterized in that into either one or both of the above components there is also mixed the following component, which has been selected from the group consisting of c) tall resin, wood resin, tall oil, tall-oil pitch, and a component and mixture of these materials.
A pavement binder composition based on bitumen, asphalt road oil, road tar or pitch comprising:
- a) a thermoplastic polymer and,
- b) bitumen, asphalt, road oil, road tar or pitch, characterized in that it also comprises:
- c) tall resin, wood resin, turpentine resin, tall oil, tall-oil pitch, or a component or mixture of these.
Dependencies are inferred from the claim text.