Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1988-07-05
1991-01-29
Lieberman, Allan M.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
523323, 523346, 523351, 524 68, 524 69, 524 70, 524 71, C08J 320, C08L 9500
Patent
active
049887475
ABSTRACT:
Process for the production of a binder modified with synthetic material for building materials, especially street-building material, in which for the formation of the binder, molten bitumen together with a thermoplast or a thermoplast mixture, preferably an olefin polymer, is subjected to a homogenization treatment. To the mixture containing the bitumen and a thermoplast or a thermoplast mixture, there is supplied in the form of kinetic energy an amount of energy corresponding to the difference between the treatment temperature and the disintegration temperature of the thermoplast or thermoplast mixture to form readily reacting molecular fragments of the thermoplast or thermoplast mixture. Preferably, the mixture containing bitumen and the thermoplast or a thermoplast mixture is driven through a narrow gap between two mixing tools standing opposite to one another and rotating relatively to one another.
REFERENCES:
patent: 4314921 (1982-02-01), Beigenzein
patent: 4567222 (1986-01-01), Hagenbach et al.
Lieberman Allan M.
Novophalt Overseas S.A.
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