Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1987-07-20
1988-09-13
Lieberman, Allan M.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
4274071, 4274073, 524 70, 524 71, C08L 2312, C08L 2316, C08L 2318, C08L 9500
Patent
active
047710900
ABSTRACT:
Compositions comprising 15 to 20% amorphous olefin copolymer, 3 to 5% ethene-propene-ethylidine norbornene terpolymer of the sequence type with 25 to 30% propene content, 6 to 8% double bonds, and raw strength 10 MPa, 60 to 82% distilled bitumen, 0 to 3% isotactic polypropylene, 0 to 15% filler and 0 to 1% antioxidizing agent, when heat-sealed to a layer of oxidized bitumen, form a stable bond therewith and thus can be used to form a waterproofing surface coat on fibrous roofing sheets.
REFERENCES:
patent: 4081502 (1978-03-01), Bluemel et al.
patent: 4659759 (1987-04-01), Jeranoff et al.
Denzel Horst
Kehr Helmut
Huels Aktiengesellschaft
Lieberman Allan M.
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