Compositions: coating or plastic – Coating or plastic compositions – Bituminous material or tarry residue
Reexamination Certificate
2011-04-12
2011-04-12
Klemanski, Helene (Department: 1734)
Compositions: coating or plastic
Coating or plastic compositions
Bituminous material or tarry residue
Reexamination Certificate
active
07922802
ABSTRACT:
A PIT emulsion, including asphalt or bitumen; one or more non-ionic emulsifiers; optionally one or more cationic co-emulsifiers, and/or one or more solvents is provided. A PIT emulsion, including 10% to 70% b.w. asphalt or bitumen; 5% to 15% b.w. of one or more non-ionic emulsifiers; 0 to 5% b.w. of one or more cationic co-emulsifiers; and 0 to 40% b.w. of one or more solvents, where the quantities shown add up to 100% b.w. with water, and optionally other auxiliaries and additives is also provided. A method for making a finely-divided asphalt or bitumen PIT emulsion, including subjecting an aqueous mixture of asphalt or bitumen, at least one non-ionic emulsifier, and optionally a solvent to vigorous stirring to obtain a homogenous composition; heating the homogenous composition above the phase inversion temperature to obtain a PIT emulsion, and cooling the PIT emulsion is also provided.
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Merlet Stephanie
Valls Ramon
Cognis IP Management GmbH
Klemanski Helene
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