Maintenance treatments useful for improving the performance of aged or brittle resinous binders in paving or roofing

Patent metadata

Field	Value
Publication number	US-12297150-B2
Application number	US-202117499081-A
Country	US
Kind code	B2
Filing date	Oct 12, 2021
Priority date	Oct 12, 2020
Publication date	May 13, 2025
Grant date	May 13, 2025

Abstract

Provided herein are an emulsified asphalt product and an emulsified coating product. Both emulsified products contain one or more rejuvenators of formula (I) or formula (X). The emulsified asphalt product is useful for improving the performance of aged or brittle resinous binders in paving applications while the emulsified coating product is similarly useful in roofing applications. Also provided herein is a treated bituminous pavement where the performance grade varies with depth.

First claim

What is claimed:

1. An emulsified coating product comprising:
water;
one or more surfactants; and
one or more rejuvenators of formula (X)

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

 and
wherein at least one A is

each

 represents the point of attachment to a —CH 2 — group;
n is 1, 2, or 3;
R is 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; or
R is selected from the group consisting of

each

 represents the point of attachment to a

 moiety;
R 1 , R 2 , and R 3 are independently selected from the group consisting of —H and —C(O)R 4 ;
R 4 is H, C 1 -C 23 alkyl, or aryl;
wherein the one or more rejuvenators of formula (X) have an N e value which is greater than about 1.0 and an N d value less than about N d,0 −1; and
wherein the components form an emulsion.

2. The emulsified coating product of claim 1 , wherein the one or more surfactants is selected from the group consisting of cationic emulsifying agents, anionic emulsifying agents, nonionic emulsifying agents, lecithin, and a combination thereof.

3. The emulsified coating product of claim 1 , wherein the one or more rejuvenators of formula (X) is sub-epoxidized soybean oil (SESO).

4. The emulsified coating product of claim 1 further comprising:
one or more binders.

5. The emulsified coating product of claim 4 , wherein the one or more binders is selected from the group consisting of bitumen, bio-asphalt, reclaimed asphalt shingles (RAS), plant oil binders, animal fat binders, maltenes, and a combination thereof.

6. The emulsified coating product of claim 1 further comprising:
one or more polymers.

7. The emulsified coating product of claim 6 , wherein the one or more polymers is selected from the group consisting of polyethylene, cross-linked polyethylene polypropylene, polybutadiene, polyisoprene, polyethylene terephthalate, polyvinyl alcohol, butyl acrylate, ethyl acrylate, methyl acrylate, poly(acrylated epoxidized triglycerides), and a combination thereof.

8. The emulsified coating product of claim 1 further comprising:
one or more colorants.

9. The emulsified coating product of claim 1 further comprising:
one or more antimicrobials.

10. The emulsified coating product of claim 1 further comprising:
one or more stabilizing or gelling agents.

11. The emulsified coating product of claim 1 further comprising:
one or more crosslinkers.

12. The emulsified coating product of claim 1 further comprising:
one or more antistripping agents.

13. The emulsified coating product of claim 1 further comprising:
one or more wetting agents.

14. A method of treating an asphalt roofing system comprising:
contacting the asphalt roofing system with the emulsified coating product of claim 1 .

15. The emulsified coating product of claim 6 , wherein the one or more polymers is one or more copolymers.

Assignees

• Univ Iowa State Res Found Inc

Inventors

• Williams Ronald Christopher
• Cochran Eric W
• Huisman Theodore
• Buss Ashley F
• Pinto Irvin
• Hernandez Nacu
• Podolsky Joseph
• Forrester Michael J
• Staver Maxwell D
• Kuehl Baker W
• Hohmann Austin D

Classifications

• C09D195/00

  Coating compositions based on bituminous materials, e.g. asphalt, tar, pitch · CPC title

• C08L95/005 Primary

  Aqueous compositions, e.g. emulsions · CPC title

• C04B2111/0075

  for road construction · CPC title

• C04B2111/00586

  Roofing materials · CPC title

• C04B26/003

  Oil-based binders, e.g. containing linseed oil · CPC title