Invention Grant
- Patent Title: Farnesene-based polymers and liquid optically clear adhesive compositions incorporating the same
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Application No.: US16036994Application Date: 2018-07-17
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Publication No.: US10336839B2Publication Date: 2019-07-02
- Inventor: Taejun Yoo , Herbert Chao , Steven K Henning
- Applicant: Fina Technology, Inc.
- Applicant Address: US TX Houston
- Assignee: FINA TECHNOLOGY, INC.
- Current Assignee: FINA TECHNOLOGY, INC.
- Current Assignee Address: US TX Houston
- Agent Albert Shung
- Main IPC: C09J147/00
- IPC: C09J147/00 ; C09J175/16 ; C08F136/22 ; C08F36/22 ; C08C19/02 ; C08C19/04 ; C08C19/38 ; C08C19/28 ; B32B7/12 ; G06F3/041 ; G09G3/36 ; C08G18/62 ; C08G18/75 ; C08G18/24

Abstract:
A low viscosity polymer having a linear or branched backbone derived from farnesene monomers and at least one terminal-end functionalized with a hydroxyl group. This polymer may be further hydrogenated to reduce unsaturation and acrylated, such that it may be incorporated into a LOCA composition. The LOCA composition may be used in a laminated screen assembly, such as a touch screen, for electronic devices by adhering the LOCA composition between an optically transparent layer, such as a cover glass, and a display. The cured LOCA composition has a refractive index similar to the optically transparent layer. A method of making the low viscosity polymer for the LOCA composition includes anionically polymerizing farnesene monomers, quenching a living end of the polymer to provide the hydroxyl-terminated polymer; hydrogenating the hydroxyl-terminated polymer; and reacting the at least partially saturated hydroxyl-terminated polymer with at least one reagent to provide an acrylate terminated hydrogenated polymer.
Public/Granted literature
- US20180319914A1 Farnesene-Based Polymers and Liquid Optically Clear Adhesive Compositions Incorporating the Same Public/Granted day:2018-11-08
Information query
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