Patent · US Active

Method for producing a breathable film

US9732199B2 · kind B2 · utility

0Cited by

7References

19Claims

0Family size

Assignee

Konrad Hornschuch AG · DE

Inventors

Thorsten Neumann · Kupferzell, DE
Birgit Kammerer · Kupferzell, DE

Key dates

Filing date	Mar 10, 2015
Grant date	Aug 15, 2017
Priority date	—
Expiry date	Mar 10, 2035

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08J2327/06
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

A method for producing a breathable film based on polyvinyl chloride (PVC), including the following steps. Preparing a paste-like compound including a first fraction composed of PVC, a second fraction composed of a foreign material, and a third fraction composed of adjuvants and/or additives that that are mixed together to form the paste-like compound, applying the paste-like compound to a base, and drying and gelling the paste-like compound, which has been applied to the base, through the addition of heat, thus forming the film in which pores extending from the one surface of the film to the other are formed, which give the film breathability.

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