1
Kenneth L Smith, Tzu Li J Huang, James C Coderre: Flexible cube-corner retroreflective sheeting. Minnesota Mining and Manufacturing Company, Gary L Griswold, Walter N Kirn, Karl G Hanson, September 12, 1995: US05450235 (153 worldwide citation)

A retroreflective article 10 has a body portion 14 and a multitude of cube-comer elements 12 that project from a rear side 20 of the body portion 14. The body portion 14 includes a body layer 18 that contains a light-transmissible polymeric material having an elastic modulus less than 7.times.10.sup ...


2
Tzu Li J Huang, Walton J Hammar, James C Coderre, Mirian D Nave: Retroreflective article. Minnesota Mining and Manufacturing Company, Gary L Griswold, Walter N Kirn, David B Kagan, May 26, 1992: US05117304 (130 worldwide citation)

The present invention provides improved, flexible retroreflective articles based upon an optically clear, aliphatic polyurethane polymer. The aliphatic polymer has a plurality of hard chain segments of the formula


3
James C Coderre: Cube-corner retroreflective articles. Minnesota Mining and Manufacturing Company, Gary L Griswold, Walter N Kirn, Karl G Hanson, December 21, 1993: US05272562 (75 worldwide citation)

A retroreflective article (30, 50) has opaque pigment particles (38, 58) dispersed in a retroreflective region (33, 53) of a front portion (35, 55) of a sheeting (32, 52) that includes a body portion (34, 54) and a multitude of cube-corner elements (36, 56). The opaque pigment particles (38, 58) sca ...


4
Chi F Tung, James C Coderre: Retroflective sheeting. Minnesota Mining and Manufacturing Company, C Alexander, D M Sell, R R Tamte, January 11, 1983: US04367920 (64 worldwide citation)

New methods for making "embedded-lens" retroreflective sheeting, and new forms of such sheeting, are provided. The new sheetings are retroreflective through an increased angular range, and also provide brighter overall retroreflectivity and other advantageous properties.


5
Chi F Tung, James C Coderre: Retroreflective sheeting. Minnesota Mining and Manufacturing Company, D M Sell, J A Smith, R R Tamte, April 16, 1985: US04511210 (55 worldwide citation)

New methods for making "embedded-lens" retroreflective sheeting, and new forms of such sheeting, are provided. The new methods involve embedding microspheres into a web by continuously presenting a mass of the microspheres against the moving web and heating the web so as to soften at least an exteri ...


6
Tzu Li J Huang, Kenneth L Smith, James C Coderre: Flexible cube-corner retroreflective sheeting. 3M Innovative Properties Company, Karl G Hanson, Stephen C Jensen, November 23, 1999: US05988820 (36 worldwide citation)

A retroreflective article 10 has a body portion 14 and a multitude of cube-corner elements 12 that project from a rear side 20 of the body portion 14. The body portion 14 includes a body layer 18 that contains a light-transmissible polymeric material having an elastic modulus less than 7.times.10.su ...


7
Kenneth L Smith, Gerald M Benson, James C Coderre, Cheryl M Frey, Bruce B Wilson, Michele A Craton, Michael P Daniels, Roger E Luehrs: Cube corner cavity based retroeflectors with transparent fill material. 3M Innovative Properties Company, Rudolph P Hofman Jr, August 28, 2001: US06280822 (35 worldwide citation)

Retroreflective sheeting includes a body layer having a structured surface with recessed faces forming cube corner cavities. A reflective film is disposed at least on the recessed faces, and a fill material fills the cube corner cavities. The fill material comprises radiation-curable materials, adhe ...


8
James C Coderre, David M Burns: Infrared reflecting cube-cornered sheeting. Minnesota Mining and Manufacturing Company, Gary L Griswold, Walter N Kirn, Robert H Jordan, April 6, 1993: US05200851 (34 worldwide citation)

Cube-corner type retroreflective articles which retroreflect infrared light but do not substantially retroreflect visible light. The cube-corner elements comprise a polymeric matrix selected to be highly transmissive to infrared light but substantially opaque to visible light.


9
Chi F Tung, James C Coderre: Retroreflective sheeting. Minnesota Mining and Manufacturing Company, Donald M Sell, James A Smith, Roger R Tamte, February 11, 1986: US04569857 (33 worldwide citation)

New methods for making "embedded-lens" retroreflective sheeting, and new forms of such sheeting, are provided. The new methods involve embedding microspheres into a web by continuously presenting a mass of the microspheres against the moving web and heating the web so as to soften at least an exteri ...


10
Gerald M Benson, Kenneth L Smith, James C Coderre: Cube corner cavity based retroreflectors and methods for making same. 3M Innovative Properties Company, Rudolph P Hofmann Jr, September 11, 2001: US06287670 (32 worldwide citation)

Retroreflective sheeting includes a body layer having a structured surface with recessed faces and top surfaces, the recessed faces forming cube corner cavities. The recessed faces have a high specular reflectivity, while the top surfaces have a low specular reflectivity. In some embodiments a subst ...