JPS56106950A - Curable epoxy resin - Google Patents

Curable epoxy resin

Info

Publication number
JPS56106950A
JPS56106950A JP917980A JP917980A JPS56106950A JP S56106950 A JPS56106950 A JP S56106950A JP 917980 A JP917980 A JP 917980A JP 917980 A JP917980 A JP 917980A JP S56106950 A JPS56106950 A JP S56106950A
Authority
JP
Japan
Prior art keywords
amine hardener
epoxy resin
resin
clay pigment
100pts
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
JP917980A
Other languages
Japanese (ja)
Inventor
Eiichi Okabe
Akira Tsutsumi
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.)
Pentel Co Ltd
Original Assignee
Pentel Co 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 Pentel Co Ltd filed Critical Pentel Co Ltd
Priority to JP917980A priority Critical patent/JPS56106950A/en
Publication of JPS56106950A publication Critical patent/JPS56106950A/en
Pending legal-status Critical Current

Links

Landscapes

  • Compositions Of Macromolecular Compounds (AREA)
  • Epoxy Resins (AREA)

Abstract

PURPOSE: To enable sure visual determination of the mixing state of an epoxy resin and an amine hardener, by compounding the epoxy resin with a clay pigment which changes its color with the amine hardener, thereby ensuring the discoloration of the resin by mixing with the amine hardener even after the storage of the resin under the exposure with light and heat.
CONSTITUTION: A composition composed of 100pts.wt. of an epoxy resin and 0.01W5wt% of a clay pigment compounded therein, is mixed with 10W150wt%, based on 100pts.of the resin, of an amine hardener such as an aliphatic polyamine. The clay pigment can be prepared by reacting zeolite and/or montmorillonite with a basic dye which changes the color with an amine hardener, e.g. methylene blue, crystal violet, etc., in a specific buffer solution at ≤90°C.
EFFECT: The troubles caused by insufficient kneading can be prevented.
COPYRIGHT: (C)1981,JPO&Japio
JP917980A 1980-01-28 1980-01-28 Curable epoxy resin Pending JPS56106950A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP917980A JPS56106950A (en) 1980-01-28 1980-01-28 Curable epoxy resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP917980A JPS56106950A (en) 1980-01-28 1980-01-28 Curable epoxy resin

Publications (1)

Publication Number Publication Date
JPS56106950A true JPS56106950A (en) 1981-08-25

Family

ID=11713326

Family Applications (1)

Application Number Title Priority Date Filing Date
JP917980A Pending JPS56106950A (en) 1980-01-28 1980-01-28 Curable epoxy resin

Country Status (1)

Country Link
JP (1) JPS56106950A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100540909B1 (en) * 1999-02-04 2006-01-10 제일모직주식회사 Epoxy molding compound for encapsulating semiconductors elements with good markability

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100540909B1 (en) * 1999-02-04 2006-01-10 제일모직주식회사 Epoxy molding compound for encapsulating semiconductors elements with good markability

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