Bitumen composition
AssigneeShell Internationale Research Maatschappij B.V.
InventorsFrancois Julien Deygout, Alain Seive
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Abstract
The present invention provides a bitumen composition including:—(i) from 0.1 to 25% wt of an elastomer, (ii) from 0.1 to 40% wt of a solvent, (iii) from 30 to 99% wt of a bitumen, (iv) from 0.1 to 30% wt of a lithium salt of a C10-C40 fatty acid or hydroxy fatty acid, and optionally (v) from 0 to 70% wt of a filler, all weights based on total bitumen composition, wherein the solvent is of general formula (I), wherein R1 represents a hydrogen atom or a hydrocarbyl group having from 1 to 6 carbon atoms, R2 represents a hydrocarbyl group having from 1 to 6 carbon atoms, and the sum of the carbon atoms in R1 and R2 is from 5 to 7; a process of preparing said bitumen composition and the use of the composition as a cold-applicable adhesive.
Claims24
A bitumen composition comprising:—
- (i) from 0.1 to 25% wt of an elastomer,
- (ii) from 0.1 to 40% wt of a solvent,
- (iii) from 30 to 99% wt of a bitumen,
- (iv) from 0.1 to 30% wt of a lithium salt of a C10-C40 fatty acid or hydroxy fatty acid, and optionally
- (v) from 0 to 70% wt of a filler, all weights based on total bitumen composition,
- wherein the solvent is of general formula (I)
- wherein R1 represents a hydrogen atom or a hydrocarbyl group having from 1 to 6 carbon atoms, R2 represents a hydrocarbyl group having from 1 to 6 carbon atoms, and the sum of the carbon atoms in R1 and R2 is from 5 to 7.
A process of preparing a bitumen composition which comprises mixing a first component (A) comprising (i) from 0.1 to 25% wt of an elastomer, and (ii) from 0.1 to 40% wt of a solvent;
- with a second component (B) comprising (iii) from 30 to 99% wt of a bitumen, (iv) from 0.1 to 30% wt of a lithium salt of a C10-C40 fatty acid or hydroxy fatty acid, and optionally (v) from 0 to 70% wt of a filler, all weights based on total bitumen composition, wherein the solvent is of general formula (I)
- wherein R1 represents a hydrogen atom or a hydrocarbyl group having from 1 to 6 carbon atoms, R2 represents a hydrocarbyl group having from 1 to 6 carbon atoms, and the sum of the carbon atoms in R1 and R2 is from 5 to 7.
Dependencies are inferred from the claim text.