Abstract: The present invention discloses a method for preventing retraction of aqueous drops on a hydrophobic surface. The present invention also discloses a medical device coated with a hydrophilic coating comprising a substrate and a coating composition.
Type:
Grant
Filed:
July 11, 2017
Date of Patent:
March 12, 2024
Assignee:
COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
Abstract: A multilayer interlayer structure having a first and second polyvinyl acetal (poly(vinyl acetal)) layer and a cellulose ester layer having a thickness of at least 10 mils disposed between the first and second poly(vinyl acetal) layers. The cellulose ester layer can have a higher storage modulus and/or higher Tg than at least one of the poly(vinyl acetal) layers. The interlayer structure is useful to make glass panels having high stiffness and which possess good optical clarity for a variety of applications, including outdoor structural applications.
Type:
Grant
Filed:
December 3, 2015
Date of Patent:
May 21, 2019
Assignee:
Solutia Inc.
Inventors:
Aristotelis Karagiannis, Bruce Edward Wade, Michael Eugene Donelson
Abstract: An interlayer structure having a cellulose ester layer for use in structural laminates is described herein. The cellulose ester layer provides rigidity and support to multilayer interlayers comprising an array of different layers. Due to the diverse properties of the cellulose ester layers, the present interlayers can be useful in producing structural laminates having high stiffness and which possess good optical clarity for a variety of applications, including outdoor structural applications.
Type:
Grant
Filed:
March 8, 2017
Date of Patent:
May 21, 2019
Assignee:
Solutia Inc.
Inventors:
Aristotelis Karagiannis, Bruce Edward Wade, Michael Eugene Donelson, Khanh Duc Tran
Abstract: The present invention relates to a cellulose acetate film for optical compensation and a retardation enhancer used therein, and relates to a cellulose acetate film which has a high retardation value in the thickness direction (Rth).
Type:
Application
Filed:
June 20, 2012
Publication date:
May 1, 2014
Applicant:
SK INNOVATION CO., LTD.
Inventors:
Won Yeob Kim, Min Joung Im, Seung Eon Lee, Hyo Shin Kwak, Myoung Lae Kim, Yong Gyun Cho
Abstract: The present disclosure relates to methods of preparation of compounds resulting from the reaction of levulinic esters and epoxidized unsaturated fatty acid esters. The compounds are useful as renewable biomass-based plasticizers for a variety of polymers. Mono-, di- and tri-ketal adducts formed in a reaction between alkyl esters of levulinate and epoxidized unsaturated fatty acid esters derived from vegetable oils are also disclosed.
Abstract: A process for producing a cellulose ester film that is produced by a melt casting method using no solvent at film formation, and that attains reduction of bright spot foreign matter, excelling in planarity, and that attains reduction of staining, excelling in dimensional stability. It is also intended to provide such a cellulose ester film, a polarizing plate and a liquid crystal display unit. There is provided a process for producing a cellulose ester film, characterized by forming into a film a material containing a cellulose ester and an ester compound of 1 to 7.5 distribution coefficient obtained by condensation of a polyhydric alcohol and an organic acid of the general formula: (1) according to a melt casting method.
Abstract: The present inventions relate to cellulose esters having low hydroxyl content for use in optical applications, such as liquid crystal display (LCD) films. Films with low hydroxyl levels and a given ratio of non-acetyl ester to hydroxyl level have low intrinsic birefringence. These films can be cast, molded, or otherwise oriented without an appreciable birefringence or optical distortion (i.e. retardation). These films are useful in polarizer, protective, and compensator films and in molded optical parts, such as lenses. The resins of the present inventions can also be made to have “+C plate” behavior either by melt or solvent based processing, which is uncharacteristic of cellulose esters. Such +C behavior allows films having unique compensatory behavior. Other embodiments of the invention relate to methods of melt casting films while minimizing birefringence. Another embodiment of the invention is directed to films made from the cellulose esters described herein further comprising a plasticizer.
Type:
Application
Filed:
December 10, 2009
Publication date:
April 15, 2010
Applicant:
EASTMAN CHEMICAL COMPANY
Inventors:
Marcus David Shelby, Michael Eugene Donelson, Bradley Howard Dayvolt, Alan Kent Wilson, Bryan Kirkman
Abstract: The present invention relates to the use of an aqueous sodium hydroxide/thiourea solution, specifically to the use of an aqueous sodium hydroxide/thiourea solution for pilot-scale production of cellulose products, wherein sodium hydroxide constitutes 8.1%-12.0% of the total weight of the aqueous solution, thiourea constitutes 3.0%-6.0% of the total weight of the aqueous solution, and said cellulose products include regenerated cellulose filaments, films, nonwovens, as well as composite fibers and/or functional materials of protein/cellulose, chitin/cellulose, Konjac Glucomannan/cellulose, nano-crystal particle/cellulose, etc.
Type:
Application
Filed:
April 21, 2006
Publication date:
November 20, 2008
Applicants:
JIANGSU LONG-MA GREEN FIBERS CO., LTD., WUHAN UNIVERSITY
Inventors:
Lina Zhang, Dong Ruan, Jinping Zhou, Ang Lv, Chuntao LI
Abstract: Polymer film, coating, and molded article elements for use in a display device are described which comprise a polymer phase having molecularly dispersed therein an acid scavenger compound, a hindered amine light stabilizer compound and a hindered phenol antioxidant compound, wherein the hindered amine light stabilizer compound and the hindered phenol antioxidant compound are present at a weight ratio of from 20:1 to 1:20, and the weight ratio of the acid scavenger compound to the total concentration of hindered amine light stabilizer compound and hindered phenol antioxidant compound is from 10:1 to 1:10. Use of a combination of an acid scavenger and a combination of two radical scavenger antioxidants dispersed in a polymer phase in accordance with the invention enables enhanced stabilization of the polymer when exposed to high heat and/or humidity condition, which has been found to be especially desirable when applied to polymer layers laminated into displays (e.g., polarizers in liquid crystal displays).
Type:
Application
Filed:
May 17, 2002
Publication date:
May 29, 2003
Applicant:
Eastman Kodak Company
Inventors:
Timothy C. Schunk, Kurt M. Schroeder, Charles H. Appell, Daniel T. Linehan