JPS6490214A - Purification of epoxy resin - Google Patents

Purification of epoxy resin

Info

Publication number
JPS6490214A
JPS6490214A JP24588387A JP24588387A JPS6490214A JP S6490214 A JPS6490214 A JP S6490214A JP 24588387 A JP24588387 A JP 24588387A JP 24588387 A JP24588387 A JP 24588387A JP S6490214 A JPS6490214 A JP S6490214A
Authority
JP
Japan
Prior art keywords
org
epoxy resin
chlorine
solvent
amt
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP24588387A
Other languages
Japanese (ja)
Inventor
Taira Harada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsui Petrochemical Industries Ltd
Original Assignee
Mitsui Petrochemical Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsui Petrochemical Industries Ltd filed Critical Mitsui Petrochemical Industries Ltd
Priority to JP24588387A priority Critical patent/JPS6490214A/en
Publication of JPS6490214A publication Critical patent/JPS6490214A/en
Pending legal-status Critical Current

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  • Epoxy Resins (AREA)

Abstract

PURPOSE:To effectively remove org. chlorine contained in an epoxy resin and efficiently recover the solvent, by the reaction of an alkali metal hydroxide with an epoxy resin contg. organic chlorine, neutralizing the product, and removing the solvent from the org. layer. CONSTITUTION:An alkali metal hydroxide is reacted with an epoxy resin contg. org. chlorine in a hydrophilic solvent. After the removal of the hydrophilic solvent, the remaining product is dissolved again by adding a hydrophobic solvent and neutralized by adding an aq. soln. of phosphoric acid or monobasic phosphate, and the product is washed with water. The org. layer is freed of the hydrophobic solvent to give a purified epoxy resin. The alkali metal hydroxide should be used in an amt. of 0.1-10, pref. 1-5 equivalent per equivalent of the org. chlorine in the epoxy resin. When it is added in an amt. below said range, it will be impossible to capture the org. chlorine satisfactorily; even when it is added in an amt. above said range, no greater effect than anticipated will be obtd., and yet a troublesome procedure will be required for removing the excess portion.
JP24588387A 1987-10-01 1987-10-01 Purification of epoxy resin Pending JPS6490214A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24588387A JPS6490214A (en) 1987-10-01 1987-10-01 Purification of epoxy resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24588387A JPS6490214A (en) 1987-10-01 1987-10-01 Purification of epoxy resin

Publications (1)

Publication Number Publication Date
JPS6490214A true JPS6490214A (en) 1989-04-06

Family

ID=17140223

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24588387A Pending JPS6490214A (en) 1987-10-01 1987-10-01 Purification of epoxy resin

Country Status (1)

Country Link
JP (1) JPS6490214A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007277498A (en) * 2006-04-12 2007-10-25 Toto Kasei Co Ltd Process for purification of epoxy resin
CN103166129A (en) * 2013-04-02 2013-06-19 朴仁洙 Package for stably operating negative-ion generator and method of package
JP2014040508A (en) * 2012-08-21 2014-03-06 Asahi Kasei E-Materials Corp Method for producing epoxy resin
CN115093542A (en) * 2022-07-20 2022-09-23 杜彪 Method for reducing total chlorine content of epoxy resin, ultra-pure epoxy resin and application thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007277498A (en) * 2006-04-12 2007-10-25 Toto Kasei Co Ltd Process for purification of epoxy resin
JP2014040508A (en) * 2012-08-21 2014-03-06 Asahi Kasei E-Materials Corp Method for producing epoxy resin
CN103166129A (en) * 2013-04-02 2013-06-19 朴仁洙 Package for stably operating negative-ion generator and method of package
CN115093542A (en) * 2022-07-20 2022-09-23 杜彪 Method for reducing total chlorine content of epoxy resin, ultra-pure epoxy resin and application thereof
CN115093542B (en) * 2022-07-20 2023-12-05 智仑超纯环氧树脂(西安)有限公司 Method for reducing total chlorine content of epoxy resin, ultra-high purity epoxy resin and application thereof

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