Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1992-04-13
1994-07-05
Michl, Paul R.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
524 68, 524427, 524447, 524451, C08L 9500, C08K 326, C08K 324
Patent
active
053267982
ABSTRACT:
Composition of waterproofing membrane suitable for being applied by means of hot bitumen both on a new covering and on a previous waterproofing layer based on blown bitumen, which is characterized in that it comprises 50 to 80% by weight of distilled bitumen, 8 to 20% by weight of amorphous ethylene-propylene and/or ethylene-propylene-butene 1 copolymer, and 5 to 15% by weight of amorphous polypropylene homopolymer, and optionally up to 40% by weight of a filler and/or up to 1% by weight of an antioxidant.
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DeWitt La Vonda
Josif Albert
Michl Paul R.
Modiano Guido
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