Process for preparing a bituminous binder composition
US7728074B2 · kind B2 · utility
8Cited by
41References
3Claims
0Family size
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Key dates
| Filing date | Aug 5, 2009 |
| Grant date | Jun 1, 2010 |
| Priority date | — |
| Expiry date | Aug 5, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L53/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A block copolymer composition including a diblock copolymer (I) having one block of a monovinylaromatic hydrocarbon and one block of a conjugated diene having a peak molecular weight from 30,000 to 78,000 and one or more block copolymers (ii) comprising at least two blocks of monovinylaromatic hydrocarbon and at least one block of conjugated diene, the block copolymer selected from linear triblock copolymers having a peak molecular weight that is 1.5 to 9.0 times the peak molecular weight of the diblock copolymer, and mixtures thereof, wherein the ratio of (i) to (ii) is greater than 1:1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.