Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1991-01-30
1992-03-31
Morgan, Kriellion S.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
524 71, 524 60, C08L 9500
Patent
active
051009390
ABSTRACT:
Disclosed are bituminous blends having improved toughness and elasticity. The blends contain a bituminous binder and a tapered block copolymer formed from a monovinyl aromatic compound and a conjugated diene. Suitable tapered block copolymers include a tapered A-B-A type block copolymer of the A-t-B-t-A configuration, particularly those having an isolated monovinyl aromatic compound content of about 20 to about 90 weight percent, and tapered A-B-A type block copolymers of the A-B-t-A configuration having an isolated monovinyl aromatic compound content of about 20 to about 90 weight percent of the total monovinyl aromatic compound in the tapered block copolymer. Further disclosed is a method of making the blends. Further disclosed is a tapered A-B-A type block copolymer having an isolated monovinyl aromatic compound content of about 29 to about 75 weight percent.
REFERENCES:
patent: H790 (1990-06-01), Gegen et al.
patent: H876 (1991-01-01), Gilmore et al.
patent: 4130516 (1978-12-01), Gayle et al.
patent: 4172190 (1979-10-01), Tung et al.
patent: 4196154 (1980-04-01), Tung et al.
patent: 4427837 (1984-01-01), Tung et al.
patent: 4431777 (1989-02-01), Tung et al.
patent: 4503176 (1985-03-01), Barlow et al.
patent: 4585816 (1986-04-01), Vitkuske et al.
patent: 4904713 (1990-02-01), Vonk et al.
patent: 4994508 (1991-02-01), Shiraki et al.
Gros William A.
Pelletier Ronald R.
Snyder Ronald E.
Tung Lu H.
Vitkuske John F.
Morgan Kriellion S.
Szekely Peter
The Dow Chemical Company
LandOfFree
Bituminous compositions and method of making does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Bituminous compositions and method of making, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bituminous compositions and method of making will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2259761