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:
Jun. 17, 2003
Filed:
Jan. 25, 1999
Applicant:
Inventors:
Timothy J. Lindquist, St. Paul, MN (US);
Gregg A. Patnode, Woodbury, MN (US);
Denise R. Rutherford, Oakdale, MN (US);
Dietmar Schlei, Hudson Township, WI (US);
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D04H 1/00 ; D04H 1/300 ; D04H 3/00 ;
U.S. Cl.
CPC ...
D04H 1/00 ; D04H 1/300 ; D04H 3/00 ;
Abstract
An alkali dispersible article comprises a sheath-core microfiber. The sheath layer comprises a hydrolytically degradable polymer, and the core layer comprises another polymer that is different than the sheath polymer. The core polymer may be a hydrolytically degradable polymer or more preferably a water soluble polymer.