| Patent Number |
Title Of Patent |
Date Issued |
| H876 |
Bitumen composition |
January 1, 1991 |
| A bitumen composition comprising an asymmetric, radial polymer containing a plurality of block copolymer arms comprising at least one polymeric block of a monoalkenyl aromatic hydrocarbon and at least one polymeric block of a conjugated diolefin polymer and a plurality of conjugated diol |
| H1484 |
Method for obtaining polymer/bitumen blends with improved stability and polymer efficiency |
September 5, 1995 |
| The present invention is an improvement in a process for producing a blend of bitumen and a block copolymer of a vinyl aromatic hydrocarbon and a conjugated diene comprising mixing from 88 to 99.5 weight percent of bitumen with 0.5 to 12 weight percent copolymer at 135.degree. to 250 |
| H1250 |
Modification of asphalt |
November 2, 1993 |
| A bituminous composition comprising: (a) a bitumen, (b) a block copolymer of at least one conjugated diolefin and at least one vinyl aromatic hydrocarbon, and (c) a thermoplastic or low crystallinity polymer. |
| 6074469 |
Asphalt composition and method |
June 13, 2000 |
| A paving asphalt composition for improving the durability and longevity of asphalt road surfaces is disclosed. The paving asphalt composition includes asphalt base stock, heavy residuum of re-refined motor oil, and a chemical modifier. The heavy residuum of re-refined motor oil preferabl |
| 5246987 |
Bitumen and halogenated vinyl aromatic-conjugated diolefin block copolymer compositions |
September 21, 1993 |
| A bitumen composition is provided which contains a block copolymer of one or more halogenated vinyl aromatic blocks and one or more conjugated diolefin blocks. The composition does not phase separate upon storage for five days at 160.degree. C. and has excellent ductility and elasticity. |
| 5118733 |
Asphalt-block copolymer paving composition |
June 2, 1992 |
| An improved paving composition comprising:(a) from about 80 parts to about 99 parts per hundred of aggregate, and(b) from about 1 part to about 20 parts per hundred of a bituminous composition which is comprised of(1) from about 88 parts to about 99.5 parts per hundred of a bituminous compon |
| 4495323 |
Solvent resistant polymeric composition |
January 22, 1985 |
| A polymeric composition having good hardness, stiffness and tear strength and good resistance to flex cracking, solvent attack and abrasion comprises a radial monoalkenyl arene-conjugated diene block copolymers, a linear low density polyethylene, hydrocarbon extending oil, polystyrene |
| 4377658 |
Solvent resistant polymeric composition |
March 22, 1983 |
| A polymeric composition having improved resistance to environmental flex cracking, solvent attack, abrasion and ozone attack comprises the blend of two different radial monoalkenyl arene-conjugated diene block copolymers, high density polyethylene, ethylene-vinyl acetate copolymer, hydro |
