Patents by Inventor John J. Cael
John J. Cael has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20080187749Abstract: Provided is an optical element having at least (a) a support polymeric film layer of film material having opposing first and second sides, (b) a second polymeric film layer having opposing first and second sides, the second layer including a film material exhibiting a light influencing property, and (c) optionally, an adhesive layer interposed between and connected to at least a portion of the first side of support layer (a) and the second side of second layer (b). The film material of support layer (a) and the film material of second layer (b) are the same or different.Type: ApplicationFiled: December 13, 2007Publication date: August 7, 2008Applicant: PPG INDUSTRIES OHIO, INC.Inventors: John J. Cael, Carol L. Knox, Jonathan M. Mack, Feng Wang, Robert S. Wenzinger
-
Patent number: 7057682Abstract: A polarizer is used with a liquid crystal display (LCD) cell whose liquid crystal molecules are switched in the plane of the cell. The LCD has birefringent properties that are different from other types of LCD cell and, unlike other types of LCD, the image contrast is maintained and there is little color shift in the dark state when a low birefringence polarizer is used with the SIP LCD cell. In one embodiment, the x-z retardation of the layers between the polarization-sensitive absorbing layer and the LCD is less than 20 nm. In another embodiment, the x-z birefringence is less than 0.0005. The low levels of retardation and birefringence may be achieved by omitting the commonly used cellulose triacetate layer between the polarization-sensitive absorbing layer and the LCD.Type: GrantFiled: December 24, 2003Date of Patent: June 6, 2006Assignee: 3M Innovative Properties Co.Inventors: Philip E. Watson, Philip J. Ralli, John J. Cael
-
Patent number: 6998179Abstract: A process for preparing a polarizer is described whereby an article comprising an oriented, vinylalcohol polymer film layer, and an acid donor layer comprising a photoacid generator, is exposed to radiant energy at a temperature sufficient to effect a partial dehydration of the vinylalcohol polymer to a vinylalcohol/poly(acetylene) copolymer.Type: GrantFiled: June 21, 2004Date of Patent: February 14, 2006Assignee: 3M Innovative Properties CompanyInventors: Duane D. Fansler, Todd D. Jones, Babu N. Gaddam, Robert T. Fitzsimons, Steven M. Heilmann, John J. Cael
-
Publication number: 20040241480Abstract: A process for preparing a polarizer is described whereby an article comprising an oriented, vinylalcohol polymer film layer, and an acid donor layer comprising a photoacid generator, is exposed to radiant energy at a temperature sufficient to effect a partial dehydration of the vinylalcohol polymer to a vinylalcohol/poly(acetylene) copolymer.Type: ApplicationFiled: June 21, 2004Publication date: December 2, 2004Applicant: 3M Innovative Properties CompanyInventors: Duane D. Fansler, Todd D. Jones, Babu N. Gaddam, Robert T. Fitzsimons, Steven M. Heilmann, John J. Cael
-
Patent number: 6814899Abstract: An enhanced K-type polarizer includes a molecularly oriented sheet of polyvinylalcohol/polyvinylene block copolymer material having polyvinylene blocks formed by molecular dehydration of a sheet of polyvinylalcohol wherein the molecularly oriented sheet comprises light-polarizing molecules of polyvinylalcohol/polyvinylene block copolymer material varying in length, n, of conjugated repeating vinylene unit of the polyvinylene block, wherein an absorption concentration of each of the polyvinylene blocks in the range of n=19 to 25 is not less than approximately 65% of the absorption concentration of any of the polyvinylene blocks in the range of n=14 or 15, wherein the absorption concentration is determined by absorption of wavelengths from about 200 nm to about 700 nm by the polyvinylene blocks, and wherein the molecularly oriented sheet exhibits a photopic dichroic ratio, RD, of at least approximately 75.Type: GrantFiled: April 6, 2002Date of Patent: November 9, 2004Assignee: 3M Innovative Properties CompanyInventors: John J. Cael, Jason W. Balich, Pradnya V. Nagarkar, Kim M. Vogel, Hassan Sahouani
-
Patent number: 6808657Abstract: A process for preparing a polarizer is described whereby an article comprising an oriented, vinylalcohol polymer film layer, and an acid donor layer comprising a photoacid generator, is exposed to radiant energy at a temperature sufficient to effect a partial dehydration of the vinylalcohol polymer to a vinylalcohol/poly(acetylene) copolymer.Type: GrantFiled: February 12, 2002Date of Patent: October 26, 2004Assignee: 3M Innovative Properties CompanyInventors: Duane D. Fansler, Todd D. Jones, Babu N. Gaddam, Robert T. Fitzsimons, Steven M. Heilmann, John J. Cael
-
Publication number: 20030189275Abstract: A method for making an enhanced intrinsic polarizer from a polymeric sheet having an original length and comprising a hydroxylated linear high polymer includes stretching the polymeric sheet to a stretched length of from greater than 5.0 times to about 7.0 times the original length, introducing a suitable dehydration catalyst to the polymeric sheet, and heating the polymeric sheet and the catalyst to effect partial dehydration of the polymeric sheet wherein light absorbing, vinylene block segments are formed.Type: ApplicationFiled: October 20, 2002Publication date: October 9, 2003Inventors: John J. Cael, Jason W. Balich, Pradnya V. Nagarkar, Kim M. Vogel, Hassan Sahouani
-
Publication number: 20030170478Abstract: An enhanced K-type polarizer includes a molecularly oriented sheet of polyvinylalcohol/polyvinylene block copolymer material having polyvinylene blocks formed by molecular dehydradation of a sheet of polyvinylalcohol wherein the molecularly oriented sheet comprises light-polarizing molecules of polyvinylalcohol/polyvinylene block copolymer material varying in length, n, conjugated repeating vinylene unit of the polyvinylene block, wherein in absorption concentration of each of the polyvinylene blocks in the range of n=19 to 25 is not less than approximately 65% of the absorption concentration of any of the polyvinylene blocks in the range of n=14 or 15, wherein the absorption concentration is determined by absorption of wavelengths from about 200 nm to about 700 nm by the polyvinylene blocks, and wherein the molecularly oriented sheet exhibits a photopic dichroic, RD, of at approximately 75.Type: ApplicationFiled: April 6, 2002Publication date: September 11, 2003Inventors: John J. Cael, Jason W. Balich, Pradnya V. Nagarkar, Kim M. Vogel, Hassan Sahouani
-
Publication number: 20030157353Abstract: A process for preparing a polarizer is described whereby an article comprising an oriented, vinylalcohol polymer film layer, and an acid donor layer comprising a photoacid generator, is exposed to radiant energy at a temperature sufficient to effect a partial dehydration of the vinylalcohol polymer to a vinylalcohol/poly(acetylene) copolymer.Type: ApplicationFiled: February 12, 2002Publication date: August 21, 2003Applicant: 3M Innovative Properties CompanyInventors: Duane D. Fansler, Todd D. Jones, Babu N. Gaddam, Robert T. Fitzsimons, Steven M. Heilmann, John J. Cael
-
Patent number: 5925289Abstract: A visible range synthetic light polarizing element is provided, the optical and polarizing properties thereof having been selectively effected by regulated exposure of said polarizing element to ultraviolet irradiation. The ultraviolet irradiation can be either polarized or non-polarized, but in either case, is at intensities greater than that produced incidentally or by ambient ultraviolet irradiation sources. The resultant light-polarizing element is characterized by its heightened luminous transmittance, an improvement accomplished without departure from good polarization efficiency (i.e., greater than 99.9%).Type: GrantFiled: June 20, 1997Date of Patent: July 20, 1999Assignee: Polaroid CorporationInventors: John J. Cael, Robert L. Jones, Rong-Chang Liang, Giorgio B. Trapani, Tung-Feng Yeh
-
Patent number: 5666223Abstract: This invention relates to a new and improved light-polarizing sheet comprising molecularly oriented polyvinyl alcohol containing an oriented block segments of polyvinylene and said polyvinyl alcohol. In particular, the polarizing sheet comprises a polyvinylalcohol/polyvinylene block copolymer material wherein the polyvinylene blocks thereof are formed by molecular dehydration of a sheet of polyvinylalcohol; said sheet of polyvinylalcohol/polyvinylene block copolymer material comprising a uniform distribution of light-polarizing molecules of polyvinylalcohol/polyvinylene block copolymer material varying in the length, n, of the conjugated repeating vinylene unit of the polyvinylene block of the copolymer throughout the range of from 2 to 24; the concentration of each of said polyvinylene blocks, as determined by the absorption of wavelengths ranging from 200 to 700 nm remaining relatively constant, the degree of orientation of said light-polarizing molecules, as measured by the spectral dichroic ratio, R.sub.Type: GrantFiled: December 1, 1995Date of Patent: September 9, 1997Assignee: Polaroid CorporationInventors: Stewart Bennett, John J. Cael, Narendra S. Kadaba, Giorgio B. Trapani
-
Patent number: 4696876Abstract: Novel photopolymerizable compositions are provided which comprise a dye sensitizer, a linear polyethylenimine as a polymerization initiator and a free radical polymerizable ethylenic unsaturated monomer.In the preferred embodiments, the linear polyethylenimine is used in combination with lithium acrylate.Type: GrantFiled: May 12, 1986Date of Patent: September 29, 1987Assignee: Polaroid CorporationInventor: John J. Cael
-
Patent number: 4475984Abstract: Treatment of lignocellulosic materials with monoperoxysulfate to permit more ready separation of non-cellulosic materials therefrom to produce papermaking pulps is disclosed.Type: GrantFiled: June 20, 1983Date of Patent: October 9, 1984Assignee: International Paper Co.Inventor: John J. Cael
-
Patent number: 4404061Abstract: Treatment of lignocellulosic materials and bleaching of wood pulp with monoperoxysulfate to permit more ready separation of non-cellulosic materials therefrom to produce papermaking and bleached pulps.Type: GrantFiled: August 17, 1981Date of Patent: September 13, 1983Assignee: International Paper CompanyInventor: John J. Cael