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:
Feb. 01, 2005
Filed:
Apr. 09, 2002
Mario A. Perez, Burnsville, MN (US);
Diane R. Wolk, Woodbury, MN (US);
Betty Z. Mei, Woodbury, MN (US);
Seyed Abolhassan Angadjivand, Woodbury, MN (US);
Michael D. Swan, St Germain en Laye, FR;
Mario A. Perez, Burnsville, MN (US);
Diane R. Wolk, Woodbury, MN (US);
Betty Z. Mei, Woodbury, MN (US);
Seyed Abolhassan Angadjivand, Woodbury, MN (US);
Michael D. Swan, St Germain en Laye, FR;
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
Charged, high-strength, high-modulus, melt-processed microfibers, films having a charged, microfibrillated surface, and methods of making the same are described. Charged microfibrillated articles of the invention can be prepared by imparting fluid energy, typically in the form of high-pressure water jets, to a highly oriented, highly crystalline, melt processed film to liberate microfibers or microfibrous flakes therefrom. Microfibrillated articles of the invention find use as tape backings, in the preparation of woven or nonwoven articles, filters for particulate contaminants, such as face masks and water or air filters, fibrous mats, such as those used for removal of oil from water, wipes for dust or debris removal, and thermal and acoustical insulation.