2,2-BIS(3-ALLYL-4-HYDROXYPHENYL)PROPANE

Title:

2,2-BIS(3-ALLYL-4-HYDROXYPHENYL)PROPANE

Document Type and Number:

WIPO Patent Application WO/2007/026754

Kind Code:

A1

Abstract:

A high-purity 2,2-diallylbisphenol A which is easy to handle and is solid. It is for use as raw materials for electronic materials, such as a hardener for semiconductor encapsulation materials and an additive for polyimide resins. It is a 2,2-bis(3-allyl-4-hydroxyphenyl)propane which is solid at 30°C and represented by the formula (1). [Chemical formula 1] (1) The solid 2,2-diallylbisphenol A is obtained by subjecting liquid 2,2-diallylbisphenol A obtained through Claisen rearrangement to purification by an alkali treatment to obtain liquid 2,2-diallylbisphenol A having a purity of about 95 wt.% or higher and adding seed crystals to the purified compound to crystallize it.

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Inventors:

MINAKAMI RYUUZOH (JP)

Application Number:

PCT/JP2006/317087

Publication Date:

March 08, 2007

Filing Date:

August 30, 2006

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Assignee:

API CORP (JP)
MINAKAMI RYUUZOH (JP)

International Classes:

C07C39/21

Domestic Patent References:

WO2006059774A1

2006-06-08

Foreign References:

JPH11140007A	1999-05-25
JP2000191575A	2000-07-11
JP2000080054A	2000-03-21
US2910455A	1959-10-27
JPH05155798A	1993-06-22

Attorney, Agent or Firm:

OKADA, Kazuhiko (6F Kudan Kangyou Bldg., 10-1, Kudan-kita 1-chom, Chiyoda-ku Tokyo 73, JP)

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