Mixtures of bitumen and polymer composition

Details Mixtures of bitumen and polymer composition Mixtures of bitumen and polymer composition

Category

C - Chemistry, Metallurgy

Subcategory

08

Subsubcategory

L

IPC codes

C08L 95/00 (2006.01) C08K 3/32 (2006.01) C08L 23/10 (2006.01) C08L 23/16 (2006.01)

Type

Patent

Patent number

CA 2161043

Description

A bituminous mixture having improved physical properties is obtained by adding to a bitumen a polyphosphoric acid (I) containing phosphorus, calculated as P2O5, in amount from 80% to 87% by weight, and a polymer composition (II) comprising (A) a propylene homopolymer or copolymer, (B) optionally an ethylene copolymer fraction insoluble in xylene at ambient temperature and (C) a copolymer fraction soluble in xylene at ambient temperature.

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