Patent · US Active

Polyvinyl alcohol fibers and films with mineral fillers and small cellulose particles

US9777143B2 · kind B2 · utility

5Cited by

38References

17Claims

0Family size

Assignee

Georgia-Pacific Consumer Products LP · US

Inventors

Daniel W. Sumnicht · Oneida, US
Thomas Schulze · Rudolstadt, DE
Frank-Gunther Niemz · Rudolstadt, DE

Key dates

Filing date	Apr 2, 2015
Grant date	Oct 3, 2017
Priority date	—
Expiry date	Apr 2, 2035

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08K2201/003
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention is directed to an article of manufacture, which can be a fiber and or a film. In one aspect, the fiber or the film comprises a polyvinyl alcohol (PVOH) and an inorganic filler comprising particles having an average diameter of less than about 20 micrometers. The PVOH has a degree of hydrolysis of greater than about 95% and is present in a range between about 20 wt. % and about 99 wt. % based on the total fiber weight. Methods of making the fibers and films are also disclosed.

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