Bitumen-polymer mixtures and a process for their preparation

Details Bitumen-polymer mixtures and a process for their preparation Bitumen-polymer mixtures and a process for their preparation

1992-01-24

1993-07-06

Michl, Paul R.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524 68, 524 69, 524 70, 524 71, C08L 9500

Patent

active

052254623

ABSTRACT:
A process for preparing bituminous mixtures with added thermoplastic polymer is described, the mixtures having storage stability and improved general properties.
The process consists of treating the bitumen-polymer mixtures with an unsaturated dicarboxylic aliphatic acid or with the relative anhydride.

REFERENCES:
patent: 3615830 (1971-10-01), Johnson
patent: 3915914 (1975-10-01), Binder et al.
patent: 4217259 (1980-08-01), Bresson
patent: 4576648 (1986-03-01), Demangeon et al.
patent: 4585816 (1986-04-01), Vitkuske et al.
patent: 4873275 (1989-10-01), Moran et al.
Derwent Publications Ltd., London, Database WPIL Accession No. 81-78567D; JP-A-56 115 354 Asahi Chemical Ind.--Abstract.

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