Patrick D Fischer

US Patent:

6777080, Aug 17, 2004

Filed:

Apr 4, 2002

Appl. No.:

10/117752

Inventors:

Ashish Kumar Khandpur - Lake Elmo MN
Mark David Gehlsen - Eagan MN
Kenneth Jason Hanley - Eagan MN
John James Stradinger - Roseville MN
Patrick Jay Fischer - Saint Paul MN

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

B32B 712

US Classification:

428355AC, 4283175, 4283177, 428355 RA, 526931, 525309, 525224, 525241

Abstract:

Pressure sensitive adhesive compositions and pressure sensitive adhesive articles containing the adhesive compositions are disclosed. The adhesive compositions of the invention generally demonstrate favorable cohesive strength at elevated temperatures. The adhesive compositions contain an acrylic acid ester copolymer having pendant styrenic polymeric moieties mixed with a polyarylene oxide polymer. The adhesive composition may be a foam.

US Patent:

20040265565, Dec 30, 2004

Filed:

Jun 30, 2003

Appl. No.:

10/609808

Inventors:

Patrick Fischer - Saint Paul MN, US
Robert Floyd - Maplewood MN, US

International Classification:

B32B003/26

US Classification:

428/317900, 428/316600, 428/319300

Abstract:

Microporous articles are formed by solid-liquid phase separation from a diluent in combination with a thermoplastic polymer, flame retardant and a hindered amine synergist providing novel flame retardant articles. Such articles are useful in clothing, barriers, optical films in electronic devices (such as light reflective and dispersive films), printing substrates and electrical insulation.

US Patent:

20060008912, Jan 12, 2006

Filed:

Jul 8, 2005

Appl. No.:

11/177538

Inventors:

Patrick Simon - Lakeville MN, US
William Toreki - Gainesville FL, US
Patrick Fischer - Falcon Heights MN, US

International Classification:

G01N 31/00

US Classification:

436005000, 436166000

Abstract:

The present invention concerns novel methods and compositions useful for providing a temporary visual indication of the location, concentration, and/or time period of treatment of an applied material. The subject invention provides compositions and methods that use a temporary visual indicator. In certain embodiments, the temporary visual indicator is a pH sensitive visual agent (i.e., dye) that can be added either alone or in combination with other visual agents and/or pH modifying agents. In related embodiments, compositions of the invention comprise a combination of at least one pH modifying agent and at least one pH-sensitive visual agent.