Bitumen/polymer component making it possible to obtain bitumen/polymer compositions with very low thermal sensitivity, capable of being employed for the production of surfacings
US5314935A · kind A · utility
23Cited by
5References
41Claims
0Family size
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Key dates
| Filing date | Oct 6, 1992 |
| Grant date | May 24, 1994 |
| Priority date | — |
| Expiry date | Oct 6, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L95/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A bitumen/polymer component of the type consisting of a hydrocarbon matrix is provided in which a sulphur-crosslinked elastomer is distributed homogeneously in a quantity such that it presents 5% to 20% by weight of the bitumen/polymer component. The component exhibits a penetration, determined according to NF standard T 66004, and a ball-and-ring softening temperature, determined according to NF standard T 66008, such that the Pfeiffer number, which links these quantities, assumes values greater than 5 in the case of the bitumen/polymer component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.