Bituminous composition with improved...

Details Bituminous composition with improved... Bituminous composition with improved...

2007-07-24

2007-07-24

Szekely, Peter (Department: 1714)

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

Synthetic resins

Processes of preparing a desired or intentional composition...

C524S070000, C524S071000

Reexamination Certificate

active

11151111

ABSTRACT:
Disclosed is a bituminous composition that comprises a bituminous component (A), an elastomer component (B), preferably a block copolymer of a conjugated diene and a monovinylaromatic hydrocarbon, and an additive (C), wherein the additive is a compound of the general formulain-line-formulae description="In-line Formulae" end="lead"?Ar—R—Ar  (I)in-line-formulae description="In-line Formulae" end="tail"?wherein each “Ar” independently is a benzene ring or fused aromatic ring system of 6 to 20 carbon atoms, substituted by at least one hydroxyl group, and “R” is an optionally substituted divalent radical comprising 6 to 20 atoms in the backbone and at least one amide and/or ester group in the backbone. These compositions are disclosed to be particularly useful in the preparing and repair of roofing.

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