The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 02, 2011
Filed:
Apr. 07, 2006
Jayant Chakravarty, Woodbury, MN (US);
Vasily Topolkaraev, Appleton, WI (US);
John Herbert Conrad, Alpharetta, GA (US);
Stephen Avedis Baratian, Roswell, GA (US);
Jared L. Martin, Cumming, GA (US);
Jayant Chakravarty, Woodbury, MN (US);
Vasily Topolkaraev, Appleton, WI (US);
John Herbert Conrad, Alpharetta, GA (US);
Stephen Avedis Baratian, Roswell, GA (US);
Jared L. Martin, Cumming, GA (US);
Kimberly-Clark Worldwide, Inc., Neenah, WI (US);
Abstract
A biodegradable nonwoven web comprising substantially continuous multicomponent filaments is provided. The filaments comprise a first component and a second component. The first component contains at least one high-melting point aliphatic polyester having a melting point of from about 160° C. to about 250° C. and the second component contains at least one low-melting point aliphatic polyester. The melting point of the low-melting point aliphatic polyester is at least about 30° C. less than the melting point of the high-melting point aliphatic polyester. The low-melting point aliphatic polyester has a number average molecular weight of from about 30,000 to about 120,000 Daltons, a glass transition temperature of less than about 25° C., and an apparent viscosity of from about 50 to about 215 Pascal-seconds, as determined at a temperature of 160° C. and a shear rate of 1000 sec.