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US Patent 7648645 Pre-polymer formulations for liquid crystal displays

Patent 7648645 was granted and assigned to 3M on January, 2010 by the United States Patent and Trademark Office.

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Current Assignee

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Patent Jurisdiction

United States Patent and Trademark Office

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Patent Number

Patent Inventor Names

Amy J. Hite0

Jane K. Wardhana0

Kevin M. Lewandowski0

Ralph R. Roberts0

Date of Patent

January 19, 2010

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Patent Application Number

115575400

Date Filed

November 8, 2006

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Patent Citations Received

US Patent 11772229 Method and apparatus for forming porous advanced polishing pads using an additive manufacturing process

US Patent 11685014 Formulations for advanced polishing pads

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US Patent 11745302 Methods and precursor formulations for forming advanced polishing pads by use of an additive manufacturing process

US Patent 11980992 Integrated abrasive polishing pads and manufacturing methods

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US Patent 11986922 Techniques for combining CMP process tracking data with 3D printed CMP consumables

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US Patent 11878389 Structures formed using an additive manufacturing process for regenerating surface texture in situ

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US Patent 11958162 CMP pad construction with composite material properties using additive manufacturing processes

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US Patent 11964359 Apparatus and method of forming a polishing article that has a desired zeta potential

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Patent Primary Examiner

Geraldina Visconti

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Patent abstract

A pre-polymer/liquid crystal composition is disclosed and includes, a liquid crystal component, a photo polymerization initiator, and a polymer precursor component. The polymer precursor component includes at least, a silane monomer, reactive (meth)acryloxy monomer or oligomer, and an ester, urethane, or (meth)acrylate based polymer or oligomer, bearing one or more reactive (meth)acrylate groups. Methods of forming a bistable electro-optical device are also disclosed.

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