Compositions: coating or plastic – Coating or plastic compositions – Bituminous material or tarry residue
Reexamination Certificate
2007-06-05
2007-06-05
Brunsman, David M. (Department: 1755)
Compositions: coating or plastic
Coating or plastic compositions
Bituminous material or tarry residue
C516S040000, C516S907000, C516S908000, C564S291000, C564S294000, C564S511000
Reexamination Certificate
active
10567277
ABSTRACT:
The present invention relates to an aqueous quick-setting bitumen-aggregate mix suitable for cold pavement of roads, parking places, sidewalks and the like. The bitumen-aggregate mix is manufactured by mixing a mineral aggregate, water, a de-emulsifier, containing hydraulic cement, and a cationic oil-in-water bitumen emulsion, containing, as an emulsifier, a salt of a tertiary diamine and a phosphoric acid. The diamine has the formula (I), where one or two of the groups R1, R2, R4and R5designate a hydrocarbon group of 6–22, preferably 8–20 carbon atoms, and the remaining R1, R2, R4and R5groups are an alkyl group with 1–4 carbon atoms, and/or a group —(A)2H, where A is an alkyleneoxy group with 2–3 carbon atoms, and s is a number from 1–4, R3is an alkylene group with 2–4 carbon atoms and n is a number from 0–2.
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International Search Report, No. PCT/SE2004/001003, Sep. 27, 2004.
Shaw Keith
Ståhlgren Leif-Göran
Thorstensson Bengt-Arne
Wallin Thomas
Akzo Nobel N.V.
Brunsman David M.
Mancini Ralph J.
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