US Patent No: 4,937,134

Number of patents in Portfolio can not be more than 2000

Elastomeric optical interference films

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ATTORNEY / AGENT: (SPONSORED)
 

Importance

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Abstract

The present invention provides improved elastomeric interference films which are readily coextruded, have improved transparency, and have greater mismatches of refractive indices than those of the prior art. An improved elastomeric optical interference film comprising at least 100 alternating layers of at least first and second divergent substantially transparent elastomeric polymeric materials is provided. Adjacent layers of the first and second polymeric materials differ from each other in refractive index by at least about 0.05, and the thickness of the layers is from about 0.05 to about 0.5 micrometers. Stretching the films results in different wavelengths of light being reflected.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
3M INNOVATIVE PROPERTIES COMPANYST PAUL, MN7902

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Schrenk, Walter J Midland, MI 32 3613
Shrum, William E St. Louis, MI 3 249
Wheatley, John A Lake Elmo, MN 129 3533

Cited Art

Patent Info (Count) # Cites Year
 
MEARL CORPORATION, A CORPORATION OF NEW JERSEY (1)
4,310,584 Multilayer light-reflecting film 147 1979

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
3M INNOVATIVE PROPERTIES COMPANY (77)
5,122,905 Relective polymeric body 187 1990
5,122,906 Thick/very thin multilayer reflective polymeric body 137 1990
5,095,210 Multilayer film indicator for determining the integrity or authenticity of an item and process for using same 127 1990
5,486,949 Birefringent interference polarizer 245 1990
5,126,880 Polymeric reflective bodies with multiple layer types 119 1990
5,149,578 Multilayer film for tamper indication by use of optical interference reflection 91 1991
5,262,894 Multicomponent, multilayer polymeric reflective bodies 80 1992
5,339,198 All-polymeric cold mirror 91 1992
5,882,774 Optical film 415 1995
5,828,488 Reflective polarizer display 174 1995
5,612,820 Birefringent interference polarizer 219 1995
6,101,032 Light fixture having a multilayer polymeric film 85 1995
6,088,067 Liquid crystal display projection system using multilayer optical film polarizers 37 1995
6,080,467 High efficiency optical devices 78 1995
5,699,188 Metal-coated multilayer mirror 219 1995
5,686,979 Optical panel capable of switching between reflective and transmissive states 319 1995
5,968,666 Multilayer polyester film 10 1996
5,808,798 Nonpolarizing beamsplitter 28 1996
6,565,982 Transparent multilayer device 16 1996
5,808,794 Reflective polarizers having extended red band edge for controlled off axis color 166 1996
6,025,897 Display with reflective polarizer and randomizing cavity 93 1996
5,872,653 Birefringent interference polarizer 19 1996
6,288,172 Light diffusing adhesive 36 1997
5,831,375 Electroluminescent lamp using multilayer optical film 50 1997
6,368,699 Multilayer polymer film with additional coatings or layers 94 1997
5,825,542 Diffusely reflecting multilayer polarizers and mirrors 182 1997
6,124,971 Transflective displays with reflective polarizing transflector 90 1997
6,088,163 Metal-coated multilayer mirror 39 1997
6,045,895 Multilayer films having pressure sensitive adhesive layers 29 1997
6,010,751 Method for forming a multicolor interference coating 70 1997
6,531,230 Color shifting film 109 1998
6,045,894 Clear to colored security film 59 1998
6,018,419 Diffuse reflectors 26 1998
6,749,427 Dental articles including post-formable multilayer optical films 3 1998
6,088,159 Reflective polarizers having extended red band edge for controlled off axis color 20 1998
6,203,921 Multilayer polyester film 0 1998
6,583,930 Birefringent interference polarization 18 1998
6,096,375 Optical polarizer 64 1999
6,185,039 Infrared selective reflective polarizing element 12 1999
6,264,747 Apparatus for forming multicolor interference coating 19 1999
6,459,514 Multilayer polymer film with additional coatings or layers 30 1999
6,451,414 Multilayer infrared reflecting optical body 23 1999
6,543,153 Reflective polarizer having improved properties and optical display with improved reflective polarizer 17 1999
6,210,785 High efficiency optical devices 14 1999
6,262,842 Transflective displays with reflective polarizing transflector 81 2000
6,449,092 Reflective polarizers having extended red band edge for reduced off axis color 9 2000
6,396,631 Light fixture having a multilayer polymeric film 13 2000
6,804,058 Electroluminescent light source and display incorporating same 12 2000
6,641,883 High efficiency optical devices 3 2001
6,888,675 Transflective displays with reflective polarizing transflector 3 2001
6,808,658 Method for making texture multilayer optical films 22 2001
6,830,713 Method for making coPEN/PMMA multilayer optical films 16 2001
6,827,886 Method for making multilayer optical films 26 2001
6,783,349 Apparatus for making multilayer optical films 20 2001
6,737,154 Multilayer polymer film with additional coatings or layers 12 2001
6,894,204 Tapered stretch removable adhesive articles and methods 22 2001
7,078,582 Stretch removable adhesive articles and methods 40 2001
6,613,421 Optical film 15 2001
6,905,220 Backlight system with multilayer optical film reflector 33 2002
6,788,463 Post-formable multilayer optical films and methods of forming 20 2002
7,052,762 Low Tg multilayer optical films 11 2002
6,685,341 Light fixture having a multilayer polymeric film 14 2002
6,797,366 Color shifting film articles 14 2002
7,038,745 Brightness enhancing reflective polarizer 13 2003
7,083,847 Optical film 3 2003
7,077,649 Dental articles including post-formable multilayer optical films 1 2004
7,321,464 Electroluminescent light source and display incorporating same 6 2004
7,138,173 Red-green-blue polymeric interference film 12 2004
7,385,763 Thick film multilayer reflector with tailored layer thickness profile 0 2005
7,147,903 High efficiency optical devices 3 2005
7,423,708 Display having a reflective polarizer 1 2005
7,655,296 Ink-receptive foam article 3 2006
7,297,393 Optical film 1 2006
7,833,593 High efficiency optical devices 0 2007
7,820,282 Foam security substrate 1 2007
7,852,560 Display incorporating reflective polarizer 0 2008
7,851,054 Multilayer optical films having one or more reflection bands 2 2009
 
EASTMAN CHEMICAL COMPANY (27)
7,968,164 Transparent polymer blends and articles prepared therefrom 2 2006
7,964,258 Transparent, oxygen-scavenging compositions and articles prepared therefrom 2 2006
7,955,533 Process for the preparation of transparent shaped articles 2 2006
8,067,525 Film(s) and/or sheet(s) comprising polyester compositions which comprise cyclobutanediol and have a certain combination of inherent viscosity and high glass transition temperature 0 2006
8,063,172 Film(s) and/or sheet(s) made using polyester compositions containing low amounts of cyclobutanediol 0 2006
8,063,173 Polyester compositions containing low amounts of cyclobutanediol and articles made therefrom 0 2006
7,985,827 Polyester compositions which comprise cyclobutanediol having certain cis/trans ratios 0 2006
7,959,836 Process for the preparation of transparent, shaped articles containing polyesters comprising a cyclobutanediol 2 2006
7,959,998 Transparent, oxygen-scavenging compositions containing polyesters comprising a cyclobutanediol and articles prepared therefrom 2 2006
7,955,674 Transparent polymer blends containing polyesters comprising a cyclobutanediol and articles prepared therefrom 2 2006
7,951,900 Dialysis filter housings comprising polyester compositions formed from 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol 0 2006
7,902,320 Graphic art films comprising polyester compositions formed from 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol 0 2006
7,602,108 Micro-coextruded film modified with piezoelectric layers 0 2006
8,299,204 Polyester compositions which comprise cyclobutanediol and certain thermal stabilizers, and/or reaction products thereof 0 2006
8,193,302 Polyester compositions which comprise cyclobutanediol and certain phosphate thermal stabilizers, and/or reaction products thereof 0 2006
8,287,970 Plastic baby bottles, other blow molded articles, and processes for their manufacture 0 2008
8,198,371 Blends of polyesters and ABS copolymers 0 2009
8,101,705 Polyester compositions containing cyclobutanediol having a certain combination of inherent viscosity and moderate glass transition temperature and articles made therefrom 0 2010
8,133,967 Restaurant smallware comprising polyester compositions formed from 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol 0 2010
8,119,762 Film(s) and/or sheet(s) comprising polyester compositions which comprise cyclobutanediol and have a certain combination of inherent viscosity and moderate glass transition temperature 0 2010
8,420,868 Process for the preparation of 2,2,4,4-tetraalkylcyclobutane-1,3-diols 0 2010
8,420,869 Process for the preparation of 2,2,4,4-tetraalkylcyclobutane-1,3-diols 0 2010
8,394,997 Process for the isomerization of 2,2,4,4-tetraalkylcyclobutane-1,3-diols 0 2010
8,354,491 Containers comprising polyester compositions which comprise cyclobutanediol 0 2011
8,304,499 Transparent polymer blends and articles prepared therefrom 0 2011
8,133,417 Process for the preparation of transparent shaped articles 0 2011
8,415,450 Polyester compositions containing cyclobutanediol having a certain combination of inherent viscosity and high glass transition temperature and articles made therefrom 0 2012
 
ENGELHARD CORPORATION (4)
5,089,318 Iridescent film with thermoplastic elastomeric components 84 1989
5,451,449 Colored iridescent film 74 1994
RE36899 Iridescent film with thermoplastic elastomeric components 1 1994
6,291,056 Flakes from multilayer iridescent films for use in paints and coatings 0 1998
 
MINNESOTA MINING AND MANUFACTURING COMPANY (4)
5,795,528 Method for making a multilayer polyester film having a low coefficient of friction 9 1996
5,783,283 Multilayer polyester film with a low coefficient of friction 15 1996
5,759,467 Method for making multilayer polyester film 28 1996
5,976,424 Method for making multilayer optical films having thin optical layers 49 1997
 
NIKE, INC. (3)
6,127,026 Flexible membranes 28 1998
6,082,025 Flexible membranes 42 1998
6,582,786 Flexible membranes 11 2001
 
CASE WESTERN RESERVE UNIVERSITY (2)
6,582,807 Polymer 1D photonic crystals 2 2001
6,696,142 Polymer 1D photonic crystals 10 2003
 
THE UNIVERSITY OF BRITISH COLUMBIA (2)
5,661,839 Light guide employing multilayer optical film 86 1996
RE37594 Light guide employing multilayer optical film 27 1999
 
TORAY INDUSTRIES, INC. (2)
8,110,282 Laminated film and molded body 1 2006
8,404,335 Laminated film and molded body 0 2012
 
ATW INDUSTRIES, INC. (1)
5,241,417 Multi-layered optical filter film and production method thereof 12 1991
 
BASF CORPORATION (1)
5,500,173 Method of making molded muticomponent articles using a thin plate flow distributor 7 1995
 
DOW GLOBAL TECHNOLOGIES INC. (1)
7,887,660 Composite pipes and method making same 0 2005
 
DOW GLOBAL TECHNOLOGIES LLC (1)
8,043,696 Microlayer structures and methods 2 2005
 
IP2H AG (1)
6,972,065 Process for production of a dielectric multi-layered reflecting coating 3 2000
 
NIKON CORPORATION (1)
7,544,392 Method for producing multilayer optical device 0 2006
 
NOLAX AG (1)
8,377,833 Laminated material, particularly for an airbag, method for the production thereof, airbag, passive restraint systems comprising an airbag, and gas-tight polyamide polymer film 0 2004
 
NOVOZYMES BIOTECH, INC. (1)
6,924,014 High efficiency optical devices 9 2003
 
PETER VOGEL;GE HEALTHCARE (1)
5,946,431 Multi-functional photometer with movable linkage for routing light-transmitting paths using reflective surfaces 2 1997
 
REFAC INTERNATIONAL, LTD. (1)
5,747,588 Thermoplastic urethane elastometric alloys 6 1996
 
RMS PACKAGING (1)
6,475,608 Multi-layer iridescent films 5 1998
 
THE BOARD OF GOVERNORS FOR HIGHER EDUCATION, STATE OF RHODE ISLAND AND PROVIDENCE PLANTATIONS (1)
6,850,315 Intensity-based optical waveguide sensor 1 2001
 
THE DOW CHEMICAL COMPANY (1)
5,552,927 All-polymeric cold mirror 82 1994