Sulfur asphalt in roofing, damp-proofing and water proofing

Patent metadata

Field	Value
Publication number	US-10093803-B2
Application number	US-201615060076-A
Country	US
Kind code	B2
Filing date	Mar 3, 2016
Priority date	Nov 1, 2013
Publication date	Oct 9, 2018
Grant date	Oct 9, 2018

Abstract

A sulfur-extended plastomer asphalt binder composition useful for water proofing, damp proofing and roofing applications includes elemental sulfur, a plastomer and an asphalt binder. The sulfur-extended plastomer asphalt binder composition can be applied to the surface of a protected member such that the sulfur-extended plastomer asphalt binder composition contacts, adheres to and forms a layer upon the surface of the protected member. The asphalt binder composition is applied at a temperature no greater than 150° C.

First claim

What is claimed is:

1. A sulfur-extended plastomer asphalt binder composition useful for water proofing, damp proofing and roofing applications, a final mixed product of the sulfur-extended plastomer asphalt binder composition comprising 30% elemental sulfur, 5% plastomer, and 65% asphalt binder, each by total weight of the sulfur-extended plastomer asphalt binder composition where the elemental sulfur is a free sulfur that is separate from the plastomer before addition of the elemental sulfur to the asphalt binder, and where the plastomer is a homogeneous sulfur-modified polymer.

2. The composition of claim 1 where the asphalt binder is a Performance Grade asphalt per the AASHTO Performance Graded Asphalt Binder Specification M 320, Table 1 (2011).

3. The composition of claim 1 where the asphalt binder comprises a PG 64-10 asphalt.

4. The composition of claim 1 , wherein the plastomer has a melting point of less than 150° C.

5. A damp proof layer having a sulfur-extended plastomer asphalt binder composition formed by mixing elemental sulfur, plastomer, and asphalt binder, where the amount of elemental sulfur is at least 20% by total weight of the sulfur-extended plastomer asphalt binder composition, where the sulfur-extended plastomer asphalt binder composition has a first side in contact with and adhered to a surface of a protected member and a second side that does not contact the surface of the protected member; and where the elemental sulfur is a free sulfur that is separate from the plastomer before addition of the elemental sulfur to the asphalt binder, and where the plastomer is a homogeneous sulfur-modified polymer.

6. The composition of claim 5 , wherein the plastomer has a melting point of less than 150° C.

7. A sulfur-extended plastomer asphalt binder composition useful for water proofing, damp proofing and roofing applications, a final mixed product of the sulfur-extended plastomer asphalt binder composition comprising more than 20% elemental sulfur, about 5% plastomer, and 65%-75% asphalt binder, each by total weight of the sulfur-extended plastomer asphalt binder composition, wherein the elemental sulfur includes free sulfur that is separate from the plastomer before addition of the elemental sulfur to the asphalt binder, and where the plastomer is a homogeneous sulfur-modified polymer.

8. The composition of claim 5 , further comprising a second material adhered to the second side of the composition.

9. The composition of claim 8 , wherein the second material is selected from the group consisting of roofing tiles, crushed stones, stone aggregates, tar papers, waxed papers, non-flammable fabrics and combinations thereof.

Assignees

• Saudi Arabian Oil Co
• Univ King Fahd Pet & Minerals

Inventors

• Al-Mehthel Mohammed
• Al-Abdul Wahhab Hamad I
• Al-Idi Saleh H
• Hussein Ibnelwaleed A

Classifications

• C08K3/06

  Sulfur · CPC title

• C08L2555/52

  Aggregate, e.g. crushed stone, sand, gravel or cement · CPC title

• E04D7/00

  Roof covering {exclusively consisting of} sealing masses applied in situ; Gravelling of flat roofs · CPC title

• E04B1/66

  Sealings ({damp-proof courses E04B1/644; fire-proof sealings E04B1/948;} additions of anti-leak properties to plaster C04B; bituminous sealing masses C08L95/00; sealings for hydraulic engineering work in general E02B3/16; against ground humidity or ground water E02D31/02; coverings against rain or other precipitations of the atmosphere E04D) · CPC title

• B32B11/00

  Layered products comprising {a layer of} bituminous or tarry substances · CPC title