Pavement binder and method of making same (LAW441)

Details Pavement binder and method of making same (LAW441) Pavement binder and method of making same (LAW441)

1996-06-18

1997-06-10

Brunsman, David

Compositions: coating or plastic

Coating or plastic compositions

Bituminous material or tarry residue

106275, 106277, 524 59, 524 68, C09D19500

Patent

active

056371411

ABSTRACT:
The present invention provides a method of making storage-stable road paving binders by blending a minor amount of an unsaturated polymer (e.g., having at least one diene monomer) with a major amount of asphalt at an elevated temperature such that the components are sufficiently fluid to blend; treating the asphalt-polymer blend with a sulfonating agent; and stripping the treated asphalt-polymer blend at an elevated temperature with sufficient stripping gas to remove strippable sulfur moieties and to stabilize the resulting stripped, treated blend. The invention also provides asphaltic compositions made by the method. The asphaltic compositions are useful as binders in road paving applications.

REFERENCES:
patent: 4514308 (1985-04-01), Clampitt et al.
patent: 4591611 (1986-05-01), Jenkins et al.
patent: 4741868 (1988-05-01), Rooney et al.
patent: 5288773 (1994-02-01), Gorbaty et al.
patent: 5348994 (1994-09-01), Gorbaty et al.
patent: 5549744 (1996-08-01), Puzic

Affiliated with

Also associated with

Rating

Pavement binder and method of making same (LAW441) does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pavement binder and method of making same (LAW441), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pavement binder and method of making same (LAW441) will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-761881