United States Patent: 7066995
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چکیده
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 .gtoreq.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. Inventors: Barone; Justin R. (Rockville, MD), Schmidt; Walter F. (Beltsville, MD) Assignee: The United States of America as represented by the Secretary of Agriculture (Washington, DC) N/A ( Appl. No.: 10/805,558 Filed: March 19, 2004 Current U.S. Class: 106/156.51 ; 106/156.1; 106/156.5; 47/9; 47/902; 71/18; 71/64.13 Current International Class: C08L 89/04 (20060101); C09D 189/04 (20060101) Field of Search: 106/156.1,156.5,156.51 71/18,64.13 47/9,902 http://patft.uspto.gov/netacgi/nph-Parser?Sect...=50&s1=7066995.PN.&OS=PN/7066995&RS=PN/7066995 (1 of 18) [1/23/2007 2:58:02 PM] United States Patent: 7066995 References Cited [Referenced By] U.S. Patent Documents 3642498 February 1972 Anker 4135942 January 1979 Kikkawa 5523293 June 1996 Jane et al. 6029395 February 2000 Morgan 2002/0079074 June 2002 Griffith 2002/0148572 October 2002 Griffith
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