JPS6438432A - Sealant for electronic component - Google Patents

Sealant for electronic component

Info

Publication number
JPS6438432A
JPS6438432A JP19407387A JP19407387A JPS6438432A JP S6438432 A JPS6438432 A JP S6438432A JP 19407387 A JP19407387 A JP 19407387A JP 19407387 A JP19407387 A JP 19407387A JP S6438432 A JPS6438432 A JP S6438432A
Authority
JP
Japan
Prior art keywords
structural units
iii
polyester
structural unit
sealant
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.)
Granted
Application number
JP19407387A
Other languages
Japanese (ja)
Other versions
JP2600184B2 (en
Inventor
Toru Yamanaka
Shunei Inoue
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.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
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 Toray Industries Inc filed Critical Toray Industries Inc
Priority to JP19407387A priority Critical patent/JP2600184B2/en
Publication of JPS6438432A publication Critical patent/JPS6438432A/en
Application granted granted Critical
Publication of JP2600184B2 publication Critical patent/JP2600184B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Polyesters Or Polycarbonates (AREA)
  • Structures Or Materials For Encapsulating Or Coating Semiconductor Devices Or Solid State Devices (AREA)

Abstract

PURPOSE:To obtain a sealant having low viscosity, high toughness, high heat resistance and good adhesion to electronic components, by using a liquid polyester comprising three specified kinds of structural units and being specified in their proportions and the position of the carbonyl groups as a component. CONSTITUTION:A sealant comprising a liquid crystal polyester comprising structural units (I)-(III) of formulas I-III, wherein structural units (I) amount to 30-90mol.% based on the total, structural units (I)/structural units [(II)(III)] is 50-90mol.%, the carbonyl groups of structural units (II) and (III) are para or meta to each other, and 60-80mol.% of them are in the para position. Structural units (I) represents a polyester structural unit derived from p- hydroxybenzoic acid. Structural unit (II) represents a polyester structural unit derived from 4,4'-dihydroxybiphenyl and terephthalic acid, isophthalic acid and isophthalic acid. Structural unit (III) represents a polyester structural unit derived from hydroquinone, terephthalic acid and isophthalic acid.
JP19407387A 1987-08-03 1987-08-03 Electronic component sealant Expired - Fee Related JP2600184B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19407387A JP2600184B2 (en) 1987-08-03 1987-08-03 Electronic component sealant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19407387A JP2600184B2 (en) 1987-08-03 1987-08-03 Electronic component sealant

Publications (2)

Publication Number Publication Date
JPS6438432A true JPS6438432A (en) 1989-02-08
JP2600184B2 JP2600184B2 (en) 1997-04-16

Family

ID=16318506

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19407387A Expired - Fee Related JP2600184B2 (en) 1987-08-03 1987-08-03 Electronic component sealant

Country Status (1)

Country Link
JP (1) JP2600184B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0401935A1 (en) * 1989-06-08 1990-12-12 Stamicarbon B.V. Package made from liquid-crystalline polymer composition

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0401935A1 (en) * 1989-06-08 1990-12-12 Stamicarbon B.V. Package made from liquid-crystalline polymer composition

Also Published As

Publication number Publication date
JP2600184B2 (en) 1997-04-16

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees