Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1991-06-19
1993-03-02
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 69, 524 70, 524 71, C08L 9500
Patent
active
051909987
ABSTRACT:
Paving composition comprising a blend of specified bitumen and high vinyl butadiene, substantially free of added sulphur or peroxide, with elastic recovery greater than 50%.
REFERENCES:
patent: 4272582 (1981-06-01), Kumins et al.
patent: 4278469 (1981-07-01), Yan et al.
patent: 4530652 (1985-07-01), Buck et al.
patent: 4818367 (1989-04-01), Winkler
Evans L. W.
Michl Paul R.
Szekely Peter
The British Petroleum Company p.l.c.
Untener D. J.
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