Modified asphalt binder material using crumb rubber and methods of manufacturing a modified asphalt binder

An asphalt adhesive and modified asphalt technology, which is applied in asphalt coatings, building insulation materials, building structures, etc., can solve problems related to adhesive storage, increase in rotational viscosity, etc., and achieve improved resistance to permanent deformation and improved performance , Improve the effect of consistency and performance

Inactive Publication Date: 2008-07-09
INNOPHOS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This can lead to an undesired increase in rotational viscosity, as well as problems related to adhesive storage

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Heating pure bitumen to a temperature of about 120°C to about 200°C

[0030] - Addition of about 0.5 wt% to about 5 wt% of one or more synthetic polymers

[0031] Use a high shear mixer for about 5 minutes to about 10 hours

[0032] Add about 0.5wt% to about 10wt% of granular raw rubber

[0033] Use a high shear mixer for about 5 minutes to about 10 hours

[0034] Addition of one or more acids from about 0.5 wt% to about 3 wt%

[0035] Mix the resulting modified bitumen using a low shear mixer for 5 minutes to 48 hours

Embodiment 2

[0037] ·Heating pure bitumen to a temperature of about 120°C to about 200°C

[0038] - Addition of about 0.5 wt% to about 5 wt% of one or more synthetic polymers

[0039] Use a high shear mixer for about 5 minutes to about 10 hours

[0040] Addition of one or more acids from about 0.5 wt% to about 3 wt%

[0041] Use a high shear mixer for about 5 minutes to about 10 hours

[0042] Add about 0.5wt% to about 10wt% of granular raw rubber

[0043] Use a high shear mixer for about 5 minutes to about 10 hours

[0044] Mix the resulting modified bitumen using a low shear mixer for 5 minutes to 48 hours

Embodiment 3

[0046] Heating pure bitumen to a temperature of about 120°C to about 200°C

[0047] Add about 0.5wt% to about 10wt% of granular raw rubber

[0048] Use a high shear mixer for about 5 minutes to about 10 hours

[0049] - Addition of about 0.5 wt% to about 5 wt% of one or more synthetic polymers

[0050] Use a high shear mixer for about 5 minutes to about 10 hours

[0051] Addition of one or more acids from about 0.5 wt% to about 3 wt%

[0052] Mix the resulting modified bitumen using a low shear mixer for 5 minutes to 48 hours

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PUM

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Abstract

In a first aspect, bituminous asphalt binder materials which are modified by the addition of crumb rubber or ground tire rubber are described. In a second aspect, the present invention is directed to methods of producing a modified asphalt binder containing crumb rubber or ground tire rubber. The modified asphalt binders comprise neat asphalt, crumb rubber, one or more synthetic polymers, and one or more acids. The crumb rubber may be obtained from recycled truck and/or automobile tires.

Description

[0001] Cross References to Prior Applications [0002] This application for patent, filed May 2, 2005 under the requirements of 35 U.S.C. § 119(e), is entitled "Modified Bituminous Binder Materials Using Crumb Rubber and Process for Making Modified Bituminous Binders ( Modified Asphalt Material Using Crosslinked Crumb Rubber and Method of Manufacturing the Modified Asphalt Binder), which is expressly incorporated herein in its entirety as a part of this disclosure. field of invention [0003] In one aspect, the invention relates to a bitumen-containing bituminous binder material modified by the addition of granulated raw rubber or scrap tire rubber. In a second aspect, the present invention relates to a method of producing a modified asphalt binder comprising crumb rubber or scrap tire rubber. The modified asphalt binder of the present invention comprises pure asphalt, crumb rubber, one or more synthetic polymers and one or more acids. Crumb rubber can be obtained from recy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C09D195/00
Inventor 让－瓦莱里·马丁
Owner INNOPHOS INC
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