Abstract: Antireflective films are described having a surface layer comprising a the reaction product of a polymerizable low refractive index composition comprising at least one free-radically polymerizable fluoropolymer and surface modified inorganic nanoparticles. A high refractive index layer is coupled to the low refractive index layer. In one embodiment, the high refractive index layer comprises surface modified inorganic nanoparticles dispersed in a crosslinked organic material. The antireflective film is preferably durable, exhibiting a haze of less than 1.0% after 25 wipes with steel wool using a 3.2 cm mandrel and a mass of 1000 grams.
Type:
Grant
Filed:
February 3, 2012
Date of Patent:
January 1, 2013
Assignee:
3M Innovative Properties Company
Inventors:
Christopher B. Walker, Jr., Marc D. Radcliffe, Thomas P. Klun, Lan H. Liu, Richard J. Pokorny, William D. Coggio, Chuntao Cao, Mark J. Pellerite, Paul C. Kelley, Robert J. Fleming
Abstract: Antireflective films comprising a flexible high refractive index layer that comprises at least 60 wt-% of inorganic nanoparticles, the nanoparticles having a refractive index of at least 1.60, dispersed in a crosslinked organic material. Also described are surface treated nanoparticles.
Type:
Grant
Filed:
July 1, 2008
Date of Patent:
January 1, 2013
Assignee:
3M Innovative Properties Company
Inventors:
Lan H. Liu, Robert F. Kamrath, Encai Hao, Taun L. McKenzie, Marc D. Radcliffe, Richard J. Pokorny, Christopher B. Walker, Jr., Anthony M. Renstrom
Abstract: Microstructured films comprising surface modified inorganic oxide particles, surface modified inorganic nanoparticles having a high refractive index, and polymerizable resins are described.
Type:
Grant
Filed:
November 20, 2009
Date of Patent:
October 9, 2012
Assignee:
3M Innovative Properties Company
Inventors:
Clinton L. Jones, Brant U. Kolb, Taun L. McKenzie, David B. Olson, Nathan K. Naismith
Abstract: The present invention relates to multilayer optical films and birefringent copolyester films. The birefringent copolyester optical layer or birefringent copolyester film comprises a major amount of naphthalate units, ethylene units, and a minor amount of branched or cyclic C4 to C10 alkyl units. Also described are certain copolyester polymeric materials further comprising subunits of a phthalate ionomer such as dimethyl sulfosodium isophthalate ionomer.
Type:
Grant
Filed:
July 14, 2011
Date of Patent:
September 11, 2012
Assignee:
3M Innovative Properties Company
Inventors:
Yufeng R. Liu, David T. Yust, Stephen A. Johnson, Kristopher J. Derks
Abstract: Antireflective film articles and low refractive index coating compositions are described that comprises a fluorinated free-radically polymerizable polymeric (e.g. intermediate) material. The free-radically polymerizable fluorinated polymeric intermediate comprises the reaction product of i) at least one multi-functional free-radically polymerizable material having a fluorine content of at least 25 wt-%, and ii) optionally other multi-functional free-radically polymerizable material. The total amount of multi-functional materials is preferably at least about 25 wt-%.
Type:
Grant
Filed:
May 4, 2007
Date of Patent:
July 31, 2012
Assignee:
3M Innovative Properties Company
Inventors:
Marc D. Radcliffe, Thomas P. Klun, Lan H. Liu, Richard J. Pokorny, Suresh Iyer, Zai-Ming Qiu
Abstract: Presently described are self-assembling antireflective (“AR”) coating compositions comprising high refractive index surface modified nanoparticles. Also described are various articles such as protective films, optical displays, and windows, comprising such (e.g. dried and cured) AR coating.
Type:
Grant
Filed:
September 2, 2008
Date of Patent:
June 19, 2012
Assignee:
3M Innovative Properties Company
Inventors:
Richard J. Pokorny, Thomas P. Klun, Marc D. Radcliffe, Robert F. Kamrath, Christopher B. Walker, Jr.
Abstract: Microstructured optical films, assemblies of films including at least one microstructured optical film, and (e.g. illuminated) display devices including a single microstructured optical film or assembly.
Type:
Grant
Filed:
June 18, 2010
Date of Patent:
May 1, 2012
Assignee:
3M Innovative Properties Company
Inventors:
Clinton L. Jones, Brant U. Kolb, David B. Olson, Emily S. Goenner, Shandon D. Hart, John T. Cowher
Abstract: A multilayered polymer film includes a first set of optical layers and a second set of optical layers. The first set of optical layers is made from a polyester which is often birefringent. The polyesters of the first set of optical layers typically have a composition in which 70-100 mol % of the carboxylate subunits are first carboxylate subunits and 0-30 mol % are comonomer carboxylate subunits and 70 to 100 mol % of the glycol subunits are first glycol subunits and 0 to 30 mol % of the glycol subunits are comonomer glycol subunits, where at least 0.5 mol % of the combined carboxylate and glycol subunits are comonomer carboxylate or comonomer glycol subunits. The multilayered polymer film may be used to form, for example, a reflective polarizer or a mirror.
Type:
Grant
Filed:
November 10, 2008
Date of Patent:
May 1, 2012
Assignee:
3M Innovative Properties Company
Inventors:
Timothy J. Hebrink, William W. Merrill, Carl A. Stover
Abstract: Fluorocarbon- and urethane-(meth)acryl-containing additives and hardcoats. The hardcoats are particularly useful as a surface layer on an optical device.
Type:
Grant
Filed:
March 5, 2010
Date of Patent:
April 3, 2012
Assignee:
3M Innovative Properties Company
Inventors:
Thomas P. Klun, Naiyong Jing, Richard J. Pokorny, Zai-Ming Qiu, Mark J. Pellerite, William D. Coggio, Christopher B. Walker, Jr.
Abstract: Methods of manufacturing hardenable dental articles, packaged hardenable dental articles, and methods of packaging hardenable dental articles are disclosed. In various embodiments, the manufacturing may involve molding a hardenable dental material in a mold cavity that may be lined with a mold liner. The mold body may also form the package of the hardenable dental article formed within the mold cavity. In other embodiments, the hardenable dental articles may be provided in mold cavities located in sacrificial mold bodies that may be torn, stretched, softened, dissolved, etc. to release the hardenable dental articles in the mold cavities.
Type:
Grant
Filed:
September 8, 2010
Date of Patent:
March 20, 2012
Assignee:
3M Innovative Properties Company
Inventors:
Naimul Karim, Darin J. Meyertholen, Robert M. Biegler, Kevin M. Cummings, Lance C. Gore, James R. Kvitrud, Robert W. Peterson, Daniel T. Scott
Abstract: Antireflective films are described having a surface layer comprising a the reaction product of a polymerizable low refractive index composition comprising at least one fluorinated free-radically polymerizable material and surface modified inorganic nanoparticles. A high refractive index layer is coupled to the low refractive index layer. In one embodiment, the high refractive index layer comprises surface modified inorganic nanoparticles dispersed in a crosslinked organic material. The antireflective film is preferably durable, exhibiting a haze of less than 1.0% after 25 wipes with steel wool using a 3.2 cm mandrel and a mass of 1000 grams.
Type:
Grant
Filed:
June 6, 2007
Date of Patent:
March 20, 2012
Assignee:
3M Innovative Properties Company
Inventors:
Christopher B. Walker, Jr., Marc D. Radcliffe, Thomas P. Klun, Lan H. Liu, Richard J. Pokorny, William D. Coggio, Chuntao Cao, Mark J. Pellerite, Paul C. Kelley, Robert J. Fleming
Abstract: Light-collimating films as well as other microstructured film articles are described that comprise a (e.g. UV) cured light transmissive film comprising the reaction product of a polymerizable resin composition. Polymerizable resin compositions are also described that comprise aliphatic urethane (meth)acrylate oligomer(s), bisphenol-A ethoxylated diacrylate(s), and a crosslinker having at least three (meth)acrylate groups.
Type:
Grant
Filed:
July 7, 2011
Date of Patent:
March 13, 2012
Assignee:
3M Innovative Properties Company
Inventors:
Gary E. Gaides, Ignatius A. Kadoma, David B. Olson, Randy A. Larson, Anita R. Sykora
Abstract: Presently described are (e.g. microstructured) optical films and polymerizable resin compositions comprising at least one (meth)acrylate monomer comprising an unsubstituted or substituted phenyl ethylene group referred to as phenyl ethylene (meth)acrylate monomers.
Type:
Grant
Filed:
May 19, 2009
Date of Patent:
December 20, 2011
Assignee:
3M Innovative Properties Company
Inventors:
Bryan V. Hunt, Kyle J. Lindstrom, James P. DiZio
Abstract: The present invention relates to multilayer optical films and birefringent copolyester films. The birefringent copolyester optical layer or birefringent copolyester film comprises a major amount of naphthalate units, ethylene units, and a minor amount of branched or cyclic C4 to C10 alkyl units. Also described are certain copolyester polymeric materials further comprising subunits of a phthalate ionomer such as dimethyl sulfosodium isophthtalate ionomer.
Type:
Grant
Filed:
May 2, 2008
Date of Patent:
September 6, 2011
Assignee:
3M Innovative Properties Company
Inventors:
Yufeng Liu, David T. Yust, Stephen A. Johnson, Kristopher J. Derks
Abstract: Light-collimating films as well as other microstructured film articles are described that comprise a (e.g. UV) cured light transmissive film comprising the reaction product of a polymerizable resin composition. Polymerizable resin compositions are also described that comprise aliphatic urethane(meth)acrylate oligomer(s), bisphenol-A ethoxylated diacrylate(s), and a crosslinker having at least three (meth)acrylate groups.
Type:
Grant
Filed:
January 10, 2007
Date of Patent:
September 6, 2011
Assignee:
3M Innovative Properties Company
Inventors:
Gary E. Gaides, Ignatius A. Kadoma, David B. Olson, Randy A. Larson, Anita R. Sykora
Abstract: The present invention relates to touch screen articles comprising an antiglare layer. The antiglare layer comprises aggregate inorganic oxide particles in a cured inorganic polymer matrix.
Type:
Grant
Filed:
July 15, 2010
Date of Patent:
August 23, 2011
Assignee:
3M Innovative Properties Company
Inventors:
Paul J. Richter, Darran R. Cairns, Frank J. Bottari
Abstract: Microstructured optical films and polymerizable resin compositions comprising at one aromatic monomer or oligomer having at least two polymerizable (meth)acrylate groups and a fluorenol (meth)acrylate monomer.