Patent · US Active

Composite membrane for building applications

US11767673B2 · kind B2 · utility

1Cited by

4References

16Claims

0Family size

Assignee

BMIC LLC · US

Inventors

Li-Ying Yang · Whippany, US
Jeffrey Avitabile · Lodi, US
Joseph Nigro · Wayne, US
Daniel Podewils · Evansville, US
Brian A. Davis · Kennett Square, US
Eric R. Anderson · Redondo Beach, US
Matthew Gimpert · Stewartsville, US
Yan Zheng · Livingston, US
Brian Duffy · Wayne, US
Yixi Xiao · Parsippany, US

Key dates

Filing date	Sep 30, 2020
Grant date	Sep 26, 2023
Priority date	—
Expiry date	Jul 21, 2041

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB32B2419/06
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A roofing composite membrane includes a base layer including a first thermoplastic polyolefin. A weight of the base layer is between 5 and 25 grams per square foot. A coating layer at least partially coats the base layer. The coating layer includes at least one inorganic additive, and a second thermoplastic polyolefin including polypropylene and having a melt flow rate between 0.5 grams per 10 minutes and 12 grams per 10 minutes.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.