ADHESIVE AND BINDER FOR ELECTRO-OPTIC DISPLAY

• Main Authors: MILLER DAVID D, WEBBER RICHARD M, SHAFIQ N FAZEL, LAN CAO
• Format: Patent
• Language: English
• Published: 24.04.2014
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; DYES; FREQUENCY-CHANGING; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-LINEAR OPTICS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PHYSICS; POLISHES; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS AS ADHESIVES

PROBLEM TO BE SOLVED: To provide a polyurethane.SOLUTION: The polyurethane is formed from an isocyanate, a polyether diol and a polyester diol. The polyester diol has a molecular weight of less than about 2000, or comprises two polyester diol segments connected by a steric hindrance group, in which each polyester diol segment has a molecular weight of less than about 2000 and a molar ratio of one polyester diol to the other polyester diol is in the range of from about 1:9 to about 9:1. The polyurethane is useful as a lamination adhesive in electro-optic displays and in components used to form the displays.