Polymer modified asphalt roofing material

Patent metadata

Field	Value
Publication number	US-11746527-B2
Application number	US-202016884304-A
Country	US
Kind code	B2
Filing date	May 27, 2020
Priority date	Dec 15, 2017
Publication date	Sep 5, 2023
Grant date	Sep 5, 2023

Abstract

A shingle coating asphalt composition is provided that is produced from a paving grade asphalt. The asphalt composition comprises a paving-grade asphalt that has been modified with one or more polymer additives; and a secondary additive comprising one or more of a viscosity reducing agent, a wax, a salt of a fatty acid ester, and an amide of a fatty acid. The shingle coating asphalt coating composition is used to make a shingle. The shingle includes a substrate, the asphalt, and roofing granules.

First claim

The invention claimed is:

1. A roofing shingle comprising:
a substrate;
an asphalt coating composition on the substrate; and
a nail zone reinforcement material disposed on the asphalt coating composition, the nail zone reinforcement material comprising a polyester fabric, wherein a surface of the polyester fabric is modified by NaOH treatment,
wherein NaOH treatment of the polyester fabric creates an increase in carboxylic acid groups that increase adhesion between the nail zone reinforcement material and the asphalt coating composition compared to a polyester fabric that has not been modified by NaOH treatment disposed on an identical asphalt coating composition.

2. The roofing shingle according to claim 1 , wherein the polyester fabric comprises polyethylene terephthalate.

3. The roofing shingle according to claim 1 , further comprising a release tape applied to the nail zone reinforcement material.

4. The roofing shingle according to claim 1 , wherein the nail zone reinforcement material is roughened or perforated.

5. The roofing shingle according to claim 1 , wherein the increase in carboxylic acid groups increases the surface roughness and the polarity of the surface of the polyester fabric.

Assignees

• Owens Corning Intellectual Capital Llc

Inventors

• Latorre Carmen Anthony
• Honsvick Jacob Paul
• Kasprzak Christopher Patrick
• Buckwalter Daniel James
• Harrington Edward R
• Davis Jonathan Ross
• Lewandowski Laurand Henry
• Ploense David Michael
• Smith William Edwin
• Schweiger Scott W

Classifications

• E04D7/005 Primary

  characterised by loose or embedded gravel or granules as an outer protection of the roof covering · CPC title

• C08K3/013

  Fillers, pigments or reinforcing additives · CPC title

• C08K5/01

  Hydrocarbons {(C08K5/0091 takes precedence)} · CPC title

• C08L95/00

  Compositions of bituminous materials, e.g. asphalt, tar, pitch · CPC title

• C09D195/00

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