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Resin modifier and optical film using sugar ester

A technology of resin modifier and sugar ester, applied in the field of resin modifier and optical film, can solve the problems of deterioration of liquid crystal display device, insufficient moisture resistance and compatibility, and achieve high moisture resistance and less variation in optical properties , the effect of excellent characteristics

Inactive Publication Date: 2013-05-08
DAI ICHI KOGYO SEIYAKU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In use in such places including outdoors, moisture absorption and degradation of optical films such as polarizing films and retardation films included in liquid crystal display devices have become a problem, and optical films with higher moisture resistance are desired.
[0009] In Patent Document 3, there is disclosed a retardation film comprising an esterified compound and a cellulose derivative which esterify all or part of hydroxyl groups in monosaccharides, disaccharides, or oligosaccharides, but the film has disadvantages in its moisture resistance, Insufficient compatibility with resin

Method used

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  • Resin modifier and optical film using sugar ester
  • Resin modifier and optical film using sugar ester
  • Resin modifier and optical film using sugar ester

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0120]

[0121] Put 30.0 parts of maltitol and 70.0 parts of water into a five-necked flask equipped with a stirring rod, a thermometer, a condenser, a dropping funnel, and a pH electrode connected to a pH meter. After dissolving, cool to below 10°C in a water bath, and simultaneously 100 parts of cyclohexanone containing 79.0 parts of benzoyl chloride were gradually added and dissolved uniformly. While maintaining the temperature below 20°C, 50.1 parts of 48% sodium hydroxide aqueous solution was added from the dropping funnel at such a rate that the pH was maintained at 10-11. The dropwise addition was completed within 1 hour. Thereafter, the water bath was removed, and stirring was continued for 1 hour at a room temperature of 20 to 30° C. for aging to complete the reaction. Thereafter, add a certain amount of sodium carbonate and heat to convert the trace remaining benzoyl chloride into sodium benzoate. Then, the solvent was removed using a rotary evaporator, thereby o...

Embodiment 2

[0123]

[0124] Except having used 30.0 parts of maltitol and 39.0 parts of benzoyl chlorides, it processed similarly to Example 1, and obtained maltitol benzoate. pass 1 The average degree of substitution obtained by H-NMR was 3.2.

Embodiment 3

[0126]

[0127] It processed similarly to Example 1 except having used 30.0 parts of sucrose instead of maltitol, and used 85.3 parts of toluoyl chloride instead of benzoyl chloride, and obtained sucrose methylbenzoate. pass 1 The average substitution degree obtained by H-NMR was 6.3.

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Abstract

The present invention provides a resin modifier which has excellent compatibility with noncrystalline resin and crystalline resin, so that the forming machining properties, physical properties, softnesses, impact resistances, etc. of the noncrystalline resin and the crystalline resin are improved. Particularly the resin modifier can restrain coloring caused by heating and has excellent thermal stability. The resin modifier comprises disaccharide and an ester of aromatic monocarboxylic acid which is represented by a general formula (I). In the general formula (I), R1-R5 independently represent a group selected from hydrogen atom, alkyl and alkoxy, wherein, when the disaccharide is sucrose, at least one in R1-R5 is alkyl or alkoxy.

Description

technical field [0001] The present invention relates to resin modifiers and optical films using sugar esters. [0002] More specifically, the present invention relates to a resin modifier using sugar esters which is excellent in compatibility with amorphous resins and crystalline resins and improves their molding processability, physical properties, flexibility, impact resistance, and the like , In particular, this resin modifier can suppress coloration by heating and is excellent in thermal stability. [0003] Moreover, this invention relates to the optical film using the sugar ester which is excellent in moisture resistance. Background technique [0004] As a resin modifier, sucrose benzoate is known, and it is known to improve the molding processability and physical properties of amorphous resins such as ABS resins, polyvinyl chloride resins, epoxy resins, and unsaturated polyester resins. Alternatively, the flexibility and impact resistance of the crystalline polyester...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K5/103C08L1/12G02B1/04G02B1/10G02B1/14G02B1/18
CPCC07H3/04C08K5/101C08L55/02C08L63/00C08L67/00G02B1/04G02B5/30
Inventor 畑俊一郎前多一大藤濑圭一
Owner DAI ICHI KOGYO SEIYAKU CO LTD
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