Back to results
US 5,212,220 AGranted
Water-based emulsions and dispersions of bitumen modified with a functionalized block copolymer
AssigneeShell Oil Company
InventorRichard Gelles
Life of this patent
Estimating the term…
Abstract
A bitumen emulsion comprising (a) bitumen, (b) water, (c) optionally at least one emulsifier, and (d) a conjugated diene block copolymer containing functional groups which have a strong affinity for water. A bituminous composition comprising (a) bitumen, and (b) a polymer emulsion comprising (i) water, (ii) optionally at least one emulsifier, and (iii) a conjugated diene block copolymer containing functional groups which have a strong affinity for water.
Claims12
A bitumen emulsion comprising
- (a) bitumen,
- (b) water,
- (c) optionally at least one emulsifier, and
- (d) a conjugated diene polymer containing functional groups which have a strong affinity for water wherein the polymer is a block copolymer which is comprised of at least one conjugated diene block and at least one acrylic monomer block.
1 more element
A bituminous composition comprising
- (a) bitumen, and
- (b) a polymer emulsion comprising
- (i) water,
- (ii) optionally, at least one emulsifier, and
- (iii) a conjugated diene polymer containing functional
- groups which have a strong affinity for water wherein the polymer is a block copolymer which is comprised of at least one conjugated diene block and at least one acrylic monomer block.
3 more elements
Dependencies are inferred from the claim text.