Jeffrey A Boettcher

US Patent:

6531230, Mar 11, 2003

Filed:

Jan 13, 1998

Appl. No.:

09/006591

Inventors:

Michael F. Weber - Shoreview MN
Timothy J. Nevitt - Red Wing MN
William W. Merrill - White Bear Lake MN
Kelly M. Roscoe - Orono MN
Andrew J. Ouderkirk - Woodbury MN
John A. Wheatley - Lake Elmo MN
Gary B. Hanson - Hudosn WI
James M. Jonza - Woodbury MN
Jeffrey A. Boettcher - Falcon Heights MN
Yaoqi J. Liu - Maplewood MN
Terence D. Neavin - St. Paul MN

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

B32B 2706

US Classification:

428480, 357577, 357580, 357584, 357589

Abstract:

Multilayer polymeric films and other optical bodies are provided which is useful in making colored mirrors and polarizers. The films are characterized by a highly uniform change in color as a function of viewing angle.

US Patent:

6797396, Sep 28, 2004

Filed:

Jun 9, 2000

Appl. No.:

09/590924

Inventors:

Yaoqi J. Liu - Maplewood MN
Jeffrey A. Boettcher - Falcon Heights MN
Heather K. Kranz - Blaine MN
Andrew T. Ruff - Mendota Heights MN
Brian L. Koster - Mendota Heights MN
David K. Mortenson - White Bear Lake MN

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

B32B 2708

US Classification:

428483, 428426, 428430, 428441, 428480, 428910, 359359, 359487, 359494, 359577, 359580, 359584, 359586, 359589, 359601

Abstract:

A birefringent dielectric multilayer film that reflects in a wavelength region of interest, and preferably reflects at least 50% of light in a band at least 100 nm wide, preferably positioned between wavelengths from about 700 nm to about 2000 nm. The film is heat set to render the film capable of shrinking to conform without substantial wrinkling to a substrate having a compound curvature. The film may be laminated to form a wide variety of non-planar articles.

US Patent:

7952805, May 31, 2011

Filed:

Aug 22, 2006

Appl. No.:

11/466232

Inventors:

Daniel J. McGurran - Woodbury MN, US
Edward J. Kivel - Stillwater MN, US
Jeffrey A. Boettcher - Woodbury MN, US
Laurence R. Gilbert - Marine on St. Croix MN, US
Mitsuhiro M. Kominami - Kanagawa, JP
Raghunath Padiyath - Woodbury MN, US
Stephen J. Strauss - Hastings MN, US

Assignee:

3m Innovative Properties Company - St. Paul MN

International Classification:

G02B 5/28

US Classification:

359589, 359350, 359359, 359360

Abstract:

A transparent solar control film may have a single or multiple layer core that includes at least one layer of an orientated thermoplastic polymer material. Infrared radiation absorbing nanoparticles that preferentially absorb at least about 100 times more infrared radiation than visible radiation may be dispersed within the at least one layer of an oriented thermoplastic polymer layer. The transparent solar control film may have a haze value of less than about 5 percent.

US Patent:

20070053088, Mar 8, 2007

Filed:

Feb 23, 2004

Appl. No.:

10/564677

Inventors:

Heather Kranz - North Oaks MN, US
Jeffrey Boettcher - Woodbury MN, US
Janet Kirkman - Minneapolis MN, US
Peter Dietz - Eagan MN, US

International Classification:

G02B 5/08

US Classification:

359883000

Abstract:

An optical sheet suitable for use in a laminate comprising at least one glazing component. The optical sheet comprises a non-metallic multi-layer optical film that has multiple optical layers, and can be, for example, a solar energy reflective film (e.g., an infrared radiation reflective film). The multiple layers are thermally and/or otherwise fused together along all, substantially all or at least a substantial portion of the peripheral edge of at least the optical film, so as to prevent or at least substantially reduce the occurrence or degree of delamination of the multiple layers along all, substantially all, or the substantial portion of the peripheral edge of the optical film. At least the optical film can be dimensioned such that, when bonded to a glazing component, all, substantially all or at least the substantial portion of the peripheral edge of at least the optical film is positionable so as to be co-extensive with or substantially co-extensive with a corresponding portion of the peripheral edge of the glazing component to which the optical sheet is to be bonded.

US Patent:

20090323180, Dec 31, 2009

Filed:

Apr 30, 2009

Appl. No.:

12/433364

Inventors:

Michael F. Weber - Shoreview MN, US
Timothy J. Nevitt - Red Wing MN, US
Andrew J. Ouderkirk - Singapore, SG
John A. Wheatley - Lake Elmo MN, US
James M. Jonza - Woodbury MN, US
Yao Qi Liu - Shoreview MN, US
Andrew T. Ruff - , US
Jeffrey A. Boettcher - Woodbury MN, US

International Classification:

G02B 5/26

US Classification:

359359, 359839

Abstract:

Multilayer optical films having one or more reflection bands are provided. The films include alternating polymeric layers configured to selectively reflect and transmit visible light at a design angle of incidence, where the selective reflection includes first and second visible reflection bands. At least one of the first and second visible reflection bands is a first-order reflection.

US Patent:

54536251, Sep 26, 1995

Filed:

Feb 8, 1994

Appl. No.:

8/193599

Inventors:

Del R. Lawson - Inver Grove Heights MN
Jeffrey A. Boettcher - Falcon Heights MN
Lanny L. Harklau - Stillwater MN

Assignee:

Minnesota Mining and Manufacturing Company - St. Paul MN

International Classification:

G01N 2164

US Classification:

2504591

Abstract:

A method and system is disclosed for measuring a functional characteristic of one or more thin film coatings applied to a thin film using a photoisomer. A photoisomer is mixed into each functional coating in known amounts. Photodetection of the photoisomer as a part of the functional coatings is used to control a functional characteristic of the thin film during the manufacturing process. The photoisomer is activated with light of a selected wavelength range, and light fluorescence is measured in another selected wavelength range.

US Patent:

54649862, Nov 7, 1995

Filed:

Feb 8, 1994

Appl. No.:

8/193428

Inventors:

Jeffrey A. Boettcher - Falcon Heights MN
Lanny L. Harklau - Stillwater MN

Assignee:

Minnesota Mining and Manufacturing Company - St. Paul MN

International Classification:

G01N 2164

US Classification:

2504591

Abstract:

A fluorescent spectrophotometer measures the fluorescent characteristics of fluorescent probes within functional compositions of a specimen. The fluorescent spectrophotometer emits light appropriate for exciting the fluorescer or fluorescers contained within the specimen. The excited fluorescer emits within an emission wavelength spectrum. Fluorescers having a narrower wavelength region over which an abrupt change in emission intensity occurs are chosen for use as a fluorescent probe. The fluorescent spectrophotometer detects the change in intensity through this narrower area and performs a derivative calculation on the intensity curve. The fluorescent spectrophotometer is able to distinguish the fluorescer from other fluorescers or interfering fluorescent backgrounds.