Roofing felt composition

Details Roofing felt composition Roofing felt composition

2011-08-23

2011-08-23

Harlan, Robert D. (Department: 1762)

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

Synthetic resins

Processes of preparing a desired or intentional composition...

C524S062000, C524S069000

Reexamination Certificate

active

08003717

ABSTRACT:
The invention is directed to a novel bitumen composition comprising a paraffin wax, wherein the wax has a congealing point of between 85 and 120° C. and a PEN at 43° C., expressed in 0.1 mm, as determined by IP 376 of more than 5.

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International Search Report dated Jan. 22, 2007.

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