Bitumen mixture and use thereof

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...

Reexamination Certificate

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Reexamination Certificate

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08034854

ABSTRACT:
A bitumen mixture for high-performance overlayment roofing membranes having an only minimally higher SBS rubber content, compared with simple roofing membranes, and a comparatively high filler content. The bitumen mixture provides high-quality overlayment roofing membranes having a distinctly reduced SBS rubber content, compared to prior art overlayment roofing membranes, coupled with a nonetheless high filler content.

REFERENCES:
patent: 199 52 846 (2001-05-01), None
patent: 100 28 107 (2001-12-01), None
patent: 101 26 249 (2001-12-01), None
patent: 10028107 (2001-12-01), None
International Preliminary Report on Patentability with Search Report for PCT/EP2008/004934 dated Nov. 14, 2008.

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