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. 17, 2009
Filed:
Jun. 15, 2004
Ashish K. Khandpur, Lake Elmo, MN (US);
Jingjing MA, Woodbury, MN (US);
Mark D. Gehlsen, Eagan, MN (US);
Bradley S. Momchilovich, Stillwater, MN (US);
John J. Stradinger, Roseville, MN (US);
Ashish K. Khandpur, Lake Elmo, MN (US);
JingJing Ma, Woodbury, MN (US);
Mark D. Gehlsen, Eagan, MN (US);
Bradley S. Momchilovich, Stillwater, MN (US);
John J. Stradinger, Roseville, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A novel polymodal asymmetric elastomeric block copolymer and a pressure sensitive adhesive, tape and adhesive backed article made therefrom, such as a polymer foam article having a substantially smooth surface prepared by melt-mixing a polymer composition and a plurality of microspheres, at least one of which is an expandable polymeric microsphere, under process conditions, including temperature and shear rate, selected to form an expandable extrudable composition; and extruding the composition through a die.