Bitumen backed carpet tile

Details Bitumen backed carpet tile Bitumen backed carpet tile

1993-06-01

1999-07-27

Michl, Paul R.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

428 95, 428 96, 428 97, C08L 3100

Patent

active

059291451

ABSTRACT:
A bitumen composition suitable for a carpet tile backing is provided having from 12 to 35 wt. % bitumen, from 50 to 85 wt. % of an inorganic filler such as calcium carbonate and from 0.5 to 20 wt. % of an acid functionalized polyolefin selected from acrylic acid, maleic acid and maleic anhydride grafted isotactic polypropylene. The cold flow characteristics of the composition can be improved by incorporating from 1 to 10 wt. % atactic polypropylene.

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patent: 5360849 (1994-11-01), Braga et al.
patent: 5366779 (1994-11-01), Thompson

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