Patent · US Active

Breathable film

US11780996B2 · kind B2 · utility

0Cited by

7References

15Claims

0Family size

Assignee

RKW SE · DE

Inventors

Robert Koplin · Steinheim, DE
Dennis L. Becker · Vadnais Heights, US
Christoph Meier · Utzenstorf, CH
Thomas Arlt · Heilsbronn, DE

Key dates

Filing date	May 2, 2020
Grant date	Oct 10, 2023
Priority date	—
Expiry date	Nov 15, 2040

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L2205/03
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A breathable film having a specific ball-drop impact resistance of more than 100 mm per gram polymer per square meter. The film has a water vapor permeability of at least 1000 g/m2 in 24 hours. The elongation at break of the film in the machine direction is less than 200%.

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