Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1995-04-27
1996-11-26
Szekely, Peter A.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
524 59, 524 60, 524 68, 524 71, C08L 9500
Patent
active
055786634
ABSTRACT:
A pavement rejuvenating and/or conditioning composition in which particular coal tar derivatives and other optional ingredients are supplemented with an elastomeric constituent. A rejuvenating or conditioning composition containing an elastomer will reliably hold in place a top layer of fine aggregate, whereas a rejuvenating or conditioning composition without elastomer does not, and also allows for early restoration of traffic, prompt resistance to rain, and good repair and wear resistance of and in the pavement to be maintained. The elastomer is preferably acrylonitrile-butadiene polymer although other polymers can also be substituted including natural and nitrile-rubbers, polyorganosiloxane and, less preferably, styrene-butadiene, neoprene- and polybutadiene polymers.
REFERENCES:
patent: 3221615 (1965-12-01), McGovern
patent: 3261269 (1966-07-01), McGovern
patent: 3835117 (1974-09-01), Walaschek
patent: 3897380 (1975-07-01), Walaschek
patent: 4139397 (1979-02-01), Yan
patent: 4661378 (1987-04-01), McGovern
patent: 5180428 (1993-01-01), Koleas
K.A.E. Paving Consultants, Inc.
Szekely Peter A.
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