1
Walter J Schrenk, John A Wheatley, Victor S Chang: Birefringent interference polarizer. The Dow Chemical Company, January 23, 1996: US05486949 (236 worldwide citation)

A birefringent interference polarizer which may be fabricated from readily available materials using established coextrusion techniques is provided. The polarizer has a level of light absorption near zero and can be fabricated to polarize and reflect light of specific wavelengths while transmitting ...


2
Walter J Schrenk, Charles B Arends, Conrad F Balazs, Ray A Lewis, John A Wheatley: Formable reflective multilayer body. The Dow Chemical Company, October 22, 1996: US05568316 (225 worldwide citation)

A formable multilayer reflective polymeric body which has a substantially uniform broad bandwidth reflectance over substantially the entire range of the visible spectrum to provide a substantially uniform reflective appearance is provided. The body includes at least first and second diverse polymeri ...


3
Michael F Weber, Timothy J Nevitt, William W Merrill, Kelly M Roscoe, Andrew J Ouderkirk, John A Wheatley, Gary B Hanson, James M Jonza, Jeffrey A Boettcher, Yaoqi J Liu, Terence D Neavin: Color shifting film. 3M Innovative Properties Company, Robert J Pechman, March 11, 2003: US06531230 (215 worldwide citation)

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.


4
Ravi Ramanathan, Walter J Schrenk, John A Wheatley: Coextrusion of multilayer articles using protective boundary layers and apparatus therefor. The Dow Chemical Company, December 14, 1993: US05269995 (201 worldwide citation)

A process and apparatus for the coextrusion of a multilayer polymeric body is provided which incorporates protective boundary layers into the body, protecting the layers from instability and breakup during layer formation and multiplication. The process includes the steps of providing at least first ...


5
John A Wheatley, Walter J Schrenk: Relective polymeric body. The Dow Chemical Company, June 16, 1992: US05122905 (178 worldwide citation)

A multilayered reflective body which is thermoformable and capable of being fabricated into relatively thick parts while maintaining a uniform reflective appearance is provided. The reflective polymeric body includes at least first and second diverse polymeric materials of a sufficient number of alt ...


6
Walter J Schrenk, John A Wheatley: Infrared reflective optical interference film. The Dow Chemical Company, April 7, 1992: US05103337 (171 worldwide citation)

The present invention provides an optical interference film, made of multiple layers of polymers, which reflects wavelengths of light in the infrared region of the spectrum while being substantially transparent to wavelengths of light in the visible spectrum. The optical interference film includes m ...


7
Walter J Schrenk, Victor S Chang, John A Wheatley: Birefringent interference polarizer. The Dow Chemical Company, March 18, 1997: US05612820 (170 worldwide citation)

A birefringent interference polarizer which may be fabricated from readily available materials using established coextrusion techniques is provided. The polarizer has a level of light absorption near zero and can be fabricated to polarize and reflect light of specific wavelengths while transmitting ...


8
Walter J Schrenk, Charles B Arends, Conrad F Balazs, Ray A Lewis, John A Wheatley: Formable reflective multilayer body. The Dow Chemical Company, September 5, 1995: US05448404 (156 worldwide citation)

A formable multilayer reflective polymeric body which has a substantially uniform broad bandwidth reflectance over substantially the entire range of the visible spectrum to provide a substantially uniform reflective appearance is provided. The body includes at least first and second diverse polymeri ...


9
Michael F Weber, Andrew J Ouderkirk, John A Wheatley, Jonathan Brodd: Head-up display with polarized light source and wide-angle p-polarization reflective polarizer. 3M Innovative Properties Company, Milena G Higgins, Stephen C Jensen, October 4, 2005: US06952312 (140 worldwide citation)

A head-up display includes a projection system and a window having a target area where a reflective polarizer is positioned to reflect light from the projection system to a viewing area. Light from the projection system is p-polarized and strikes exposed window surface(s) at an acute angle to reduce ...


10
John A Wheatley, Andrew J Ouderkirk: Multilayer infrared reflecting optical body. 3M Innovative Properties Co, John A Burtis, April 11, 2000: US06049419 (136 worldwide citation)

An optical body comprising (a) a dielectric multilayer film having a reflecting band positioned to reflect infrared radiation of at least one polarization at an incident angle normal to the film, said reflecting band having a short wavelength bandedge .lambda..sub.a0 and long wavelength bandedge .la ...