IP Library › Granted Patent US 10,570,286
Granted Patent B2
US 10,570,286 · App. 15/691,295 · Granted Feb 25, 2020

Asphalt products and methods of producing them for rejuvenation and softening of asphalt

Inventors: Ronald Christopher Williams (Ames, IA); Joseph H. Podolsky (Ames, IA); Nacu Hernandez (Ames, IA); Eric W. Cochran (Ames, IA); Austin Hohmann (Dubuque, IA); Mohamed Elkashef (Ames, IA)
Assignee: Iowa State University Research Foundation, Inc.
C08L95/00C08J3/22C08J3/226C08L91/00E01C7/18E01C7/265E01C19/002E04D1/20C08J2395/00C08J2447/00C08J2491/00C08J2495/00C08L2555/24C08L2555/26C08L2555/28C08L2555/34C08L2555/64C08L2555/84E04D2001/005Y02A30/333
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Quick Facts
Patent No.
US 10,570,286
App. No.
15/691,295
Granted
Feb 25, 2020
Kind
B2
Abstract

The present invention relates to relates to a method of producing an improved asphalt. This method includes providing an asphalt binder and providing a compound of formula (I): as described herein. The asphalt binder is mixed with the compound of formula (I) under conditions effective to produce an improved asphalt. Also disclosed are an asphalt product and a method of making asphalt material.

Claims (86)

1. A method of producing an improved asphalt comprising:

providing an asphalt binder;

providing a compound of formula (I):

wherein:

each A is selected independently at each occurrence thereof from the group consisting of

and

wherein at least one A is

n=1-12;

each

represents the point of attachment to a —CH 2 — group;

R is selected from the group consisting of C 3 -C 23 alkyl and benzyl, wherein the C 3 -C 23 alkyl can be optionally substituted with an aryl, heteroaryl, or heterocyclyl;

R 1 and R 2 are independently selected from the group consisting of H, C 1 -C 23 alkyl and benzyl, wherein the C 1 -C 23 alkyl can be optionally substituted with an aryl, heteroaryl, or heterocyclyl, wherein the compound of formula (I) is selected from the group consisting of epoxidized benzyl soyate and epoxidized isoamyl soyate and

mixing the asphalt binder with the compound of formula (I) under conditions effective to produce an improved asphalt.

2. A method of producing an improved asphalt comprising:

providing an asphalt binder;

providing a compound of formula (I):

wherein:

each A is selected independently at each occurrence thereof from the group consisting of

and

wherein at least one A is

n=1-12:

each

represents the point of attachment to a —CH 2 — group;

R is selected from the group consisting of C 3 -C 23 alkyl and benzyl, wherein the C 3 -C 23 alkyl can be optionally substituted with an aryl, heteroaryl, or heterocyclyl;

R 1 and R 2 are independently selected from the group consisting of H, C 1 -C 23 alkyl and benzyl, wherein the C 1 -C 23 alkyl can be optionally substituted with an aryl, heteroaryl, or heterocyclyl, wherein the compound of formula (I) is methylated, hydrogenated, and/or hydrolyzed; and

mixing the asphalt binder with the compound of formula (I) under conditions effective to produce an improved asphalt.

3. The product of the method of claim 1 .

4. The product of the method of claim 2 .

5. A method of producing an improved asphalt comprising:

providing an asphalt binder;

providing a compound of formula (I):

wherein:

each A is selected independently at each occurrence thereof from the group consisting of

and

wherein at least one A is

n=1-12;

each

represents the point of attachment to a —CH 2 — group;

R is selected from the group consisting of C 3 -C 23 alkyl and benzyl, wherein the C 3 -C 23 alkyl can be optionally substituted with an aryl, heteroaryl, or heterocyclyl;

R 1 and R 2 are independently selected from the group consisting of H, C 1 -C 23 alkyl and benzyl, wherein the C 1 -C 23 alkyl can be optionally substituted with an aryl, heteroaryl, or heterocyclyl;

mixing the asphalt binder with the compound of formula (I) under conditions effective to produce an improved asphalt and

mixing the improved asphalt with a carboxyl additive.

6. The method of claim 5 further comprising:

mixing the improved asphalt with a styrene-butadiene type polymer.

7. The method of claim 4 , wherein the styrene-butadiene type polymer comprises at least one of SB rubber, SBS linear type, SBS radial type, and SB sulphur linked type polymers.

8. An asphalt product comprising:

an asphalt binder and

a compound of formula (I):

wherein:

each A is selected independently at each occurrence thereof from the group consisting of

and

wherein at least one A is

n=1-12;

each

represents the point of attachment to a —CH 2 — group;

R is selected from the group consisting of C 3 -C 23 alkyl and benzyl, wherein the C 3 -C 23 alkyl can be optionally substituted with an aryl, heteroaryl, or heterocyclyl;

R 1 and R 2 are independently selected from the group consisting of H, C 1 -C 23 alkyl and benzyl, wherein the C 1 -C 23 alkyl can be optionally substituted with an aryl, heteroaryl, or heterocyclyl, wherein the compound of formula (I) is selected from the group consisting of epoxidized benzyl soyate and epoxidized isoamyl soyate.

9. The asphalt product of claim 8 , wherein the asphalt product has a high temperature performance grade measured at a temperature between about −28° C. to 116° C., wherein the high temperature performance grade of the asphalt product is achieved at a temperature, which is reduced by 3° C. to 90° C. compared to that produced by an asphalt product prepared in the absence of the compound of formula (I).

10. The asphalt product of claim 8 , wherein the asphalt product has a low temperature performance grade measured at a temperature between about −16° C. to −40° C., wherein the low temperature performance grade of the asphalt product is achieved at a temperature, which is reduced by 3° C. to 60° C. compared to that produced by an asphalt product prepared in the absence of the compound of formula (I).

11. A roofing shingle, wherein the improvement comprises the asphalt product of claim 8 .

12. An asphalt product comprising:

an asphalt binder and

a compound of formula (I):

wherein:

each A is selected independently at each occurrence thereof from the group consisting of

and

wherein at least one A is

n=1-12:

each represents the point of attachment to a —CH 2 — group;

R is selected from the group consisting of C 3 -C 23 alkyl and benzyl, wherein the C 3 -C 23 alkyl can be optionally substituted with an aryl, heteroaryl, or heterocyclyl;

R 1 and R 2 are independently selected from the group consisting of H, C 1 -C 23 alkyl and benzyl, wherein the C 1 -C 23 alkyl can be optionally substituted with an aryl, heteroaryl, or heterocyclyl; and

a carboxyl additive.

13. An asphalt product comprising:

an asphalt binder and

a compound of formula (I):

wherein:

each A is selected independently at each occurrence thereof from the group consisting of

and

wherein at least one A is

n=1-12;

each

represents the point of attachment to a —CH 2 — group;

R is selected from the group consisting of C 3 -C 23 alkyl and benzyl, wherein the C 3 -C 23 alkyl can be optionally substituted with an aryl, heteroaryl, or heterocyclyl;

R 1 and R 2 are independently selected from the group consisting of H, C 1 -C 23 alkyl and benzyl, wherein the C 1 -C 23 alkyl can be optionally substituted with an aryl, heteroaryl, or heterocyclyl; and

a styrene-butadiene type polymer.

14. The asphalt product of claim 13 , wherein the styrene-butadiene type polymer comprises at least one of SB rubber, SBS linear type, SBS radial type, and SB sulphur linked type polymers.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 14, 2017
From: WILLIAMS, RONALD CHRISTOPHER; PODOLSKY, JOSEPH H.; HOHMANN, AUSTIN; HERNANDEZ, NACU; COCHRAN, ERIC W.; ELKASHEF, MOHAMED
To: IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC.
Reel/Frame 044119/0891 →
Continuity (2)
Provisional Application 62381420 · Aug 30, 2016
Related Publication 20180057686A1 · Mar 1, 2018
Cited By (4)
US 50,456 US 12,221,381 US 12,297,150 US 12,304,377