Fiber mat, method of making the fiber mat, and bituminous roofing product
US11332881B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 3, 2019 |
| Grant date | May 17, 2022 |
| Priority date | — |
| Expiry date | Jun 20, 2039 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06N2211/06
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A fiber mat includes an assembly of fibers including a minority portion including a set of polymer fibers and a majority portion including a set of fibers different than the minority portion, wherein the minority portion is a plane parallel to a plane of the majority portion of the assembly of fibers; and a binder including an organic resin, wherein an air permeability of said fiber mat is not substantially different from an equivalent weight fiber mat containing a homogenous mat structure and wherein the fiber mat provides at least a 5% increase in tear when placed in a bituminous roofing product compared to an equivalent bituminous roofing product made with the equivalent weight fiber mat containing the homogenous mat structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.