CA2039486A1 - Using branched polymers to improve the storage stability of acid treated polymer modified asphalts - Google Patents

Using branched polymers to improve the storage stability of acid treated polymer modified asphalts

Info

Publication number
CA2039486A1
CA2039486A1 CA 2039486 CA2039486A CA2039486A1 CA 2039486 A1 CA2039486 A1 CA 2039486A1 CA 2039486 CA2039486 CA 2039486 CA 2039486 A CA2039486 A CA 2039486A CA 2039486 A1 CA2039486 A1 CA 2039486A1
Authority
CA
Canada
Prior art keywords
storage stability
acid treated
polymer modified
improve
branched
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA 2039486
Other languages
French (fr)
Other versions
CA2039486C (en
Inventor
Lyle Edwin Moran
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ExxonMobil Technology and Engineering Co
Original Assignee
Imperial Oil Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US07/517,776 external-priority patent/US5095055A/en
Application filed by Imperial Oil Ltd filed Critical Imperial Oil Ltd
Publication of CA2039486A1 publication Critical patent/CA2039486A1/en
Application granted granted Critical
Publication of CA2039486C publication Critical patent/CA2039486C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Compositions Of Macromolecular Compounds (AREA)
  • Working-Up Tar And Pitch (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

This invention relates to a composition arid method for improving the storage stability of acid treated polymer modified asphalts. More specifically, the storage stability of an asphalt which contains greater than 1.0 wt.% polymer can be improved by adding a branched, rather than a non branched, polymer to an asphalt which has previously been reacted with an inorganic acid. The storage stable acid treated branched polymer modified asphalt thus produced is particularly well suited for use as a binder in paving materials and as a coating or saturant for roofing shingles.
CA 2039486 1990-05-02 1991-03-28 Using branched polymers to improve the storage stability of acid treated polymer modified asphalts Expired - Lifetime CA2039486C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/517,776 US5095055A (en) 1989-08-23 1990-05-02 Using branched polymers to improve the storage stability of acid treated polymer modified asphalts (PNE-577)
US517,776 1990-05-02

Publications (2)

Publication Number Publication Date
CA2039486A1 true CA2039486A1 (en) 1991-11-03
CA2039486C CA2039486C (en) 2002-06-04

Family

ID=24061184

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2039486 Expired - Lifetime CA2039486C (en) 1990-05-02 1991-03-28 Using branched polymers to improve the storage stability of acid treated polymer modified asphalts

Country Status (1)

Country Link
CA (1) CA2039486C (en)

Also Published As

Publication number Publication date
CA2039486C (en) 2002-06-04

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