Patent · US Expired

Compositions and films comprised of avian feather keratin

US7066995B1 · kind B1 · utility

8Cited by

4References

12Claims

0Family size

Assignee

The United States of America, as represented by the Secretary of Agriculture · US

Inventors

Justin Barone · Rockville, US
Walter Schmidt · Leverkusen, DE

Key dates

Filing date	Mar 19, 2004
Grant date	Jun 27, 2006
Priority date	—
Expiry date	Jun 2, 2024

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S47/902
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A composition suitable for making films, wherein the composition contains keratin obtained from avian feathers and at least one OH containing plasticizer. Protein-based films containing at least one protein and at least one OH containing plasticizer, wherein the protein is a protein whose PE value is ≧2.5 where PE=(S+T+Y)/C where PE is plasticizer efficiency and where S, T, Y, and C are the amino acids serine, threonine, tyrosine, and cysteine, respectively, in the protein. Preferably the protein is keratin obtained from avian feathers.

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