POLYROTAXANE, PRODUCTION METHOD THEREFOR, AND OPTICAL COMPOSITION CONTAINING SAID POLYROTAXANE

WIPO Patent Application WO/2017/038865

A1

The present invention provides an optical composition that can produce an optical article in which defects in the external appearance, such as opacity and optical distortion, during lens base material production are reduced, and in addition, in the case where a photochromic compound is added, that can form a photochromic cured body having excellent photochromism and mechanical strength. This invention also provides a polyrotaxane that is used for the composition. The polyrotaxane is a polyrotaxane having a combined molecule structure composed of an axle molecule and a plurality of cyclic molecules clathrating the axle molecule and satisfies at least one of (X) and (Y). (X) A side chain having secondary or tertiary hydroxyl groups is introduced to at least a part of the cyclic molecules of the polyrotaxane. (Y) The polyrotaxane is a polyrotaxane in which a side chain having a group represented by -A (where A is an organic group having at least one hydroxyl group) is introduced to at least a part of the cyclic molecules of the polyrotaxane, and the pKa of the hydroxyl groups of the compound represented by H-A is at least 6 and less than 14.

SHIMIZU YASUTOMO (JP)
MORI KATSUHIRO (JP)
MOMODA JYUNJI (JP)
YAMAMOTO HIROMASA (JP)

PCT/JP2016/075463

March 09, 2017

August 31, 2016

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TOKUYAMA CORP (JP)

C08G65/04; C08G18/75; C08L71/02; C09K9/02; G02B1/04; G02C7/10

WO2013099842A1	2013-07-04
WO2009145073A1	2009-12-03
WO2015068798A1	2015-05-14
WO2005080469A1	2005-09-01

JP2011178931A	2011-09-15
JP2011144338A	2011-07-28

See also references of EP 3345954A4

SSINPAT PATENT FIRM (JP)

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