JPS57153071A - Gasket - Google Patents

Gasket

Info

Publication number
JPS57153071A
JPS57153071A JP4015381A JP4015381A JPS57153071A JP S57153071 A JPS57153071 A JP S57153071A JP 4015381 A JP4015381 A JP 4015381A JP 4015381 A JP4015381 A JP 4015381A JP S57153071 A JPS57153071 A JP S57153071A
Authority
JP
Japan
Prior art keywords
water
gasket
raw material
fiber material
fiber
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
JP4015381A
Other languages
Japanese (ja)
Other versions
JPS5920705B2 (en
Inventor
Yasushi Tsuchimoto
Shiro Takahata
Kiyotaka Shimada
Koji Tanaka
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.)
Japan Exlan Co Ltd
Nichias Corp
Original Assignee
Japan Exlan Co Ltd
Nichias Corp
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 Japan Exlan Co Ltd, Nichias Corp filed Critical Japan Exlan Co Ltd
Priority to JP4015381A priority Critical patent/JPS5920705B2/en
Priority to GB8207793A priority patent/GB2101621B/en
Priority to DE19823210176 priority patent/DE3210176A1/en
Publication of JPS57153071A publication Critical patent/JPS57153071A/en
Priority to US06/573,804 priority patent/US4546033A/en
Publication of JPS5920705B2 publication Critical patent/JPS5920705B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Sealing Material Composition (AREA)
  • Gasket Seals (AREA)

Abstract

PURPOSE: To provide a gasket that takes full advantage of the characteristics of a fiber material and a rubber material and has an excellent function of preventing water leakage from a contact surface even under a small clamping pressure, by kneading a raw material comprising the fiber material and rubber material with a water-swellable material and then vulcanizing and forming the compound into a sheet form.
CONSTITUTION: A raw material for gasket comprising 50W90wt.% fiber material and 10W50wt.% rubber material is blended with 1W30wt.% water-insoluble, water-swellable material, based on the weight of the above-mentioned raw material. The resulting mixture is kneaded and then vulcanized and formed into a sheet. When the amount of the fiber material in the raw material is less than 50%, the tensile strength and heat resistance of the gasket are lowered. When it exceeds 90%, the sealing properties of the gasket are lowered. Therefore it is preferable to select the mixing ratio of the fiber material and rubber material within the above-mentioned range. The water-swellable material to be used is a hydrophilic and water-insoluble polymeric substance containing a nonionic hydrophilic group, e.g., a copolymer of acrylic acid or its salt with divinylbenzene.
COPYRIGHT: (C)1982,JPO&Japio
JP4015381A 1981-03-19 1981-03-19 gasket Expired JPS5920705B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP4015381A JPS5920705B2 (en) 1981-03-19 1981-03-19 gasket
GB8207793A GB2101621B (en) 1981-03-19 1982-03-17 Gasket sheets
DE19823210176 DE3210176A1 (en) 1981-03-19 1982-03-19 SEALING PLATE
US06/573,804 US4546033A (en) 1981-03-19 1984-01-25 Gasket sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4015381A JPS5920705B2 (en) 1981-03-19 1981-03-19 gasket

Publications (2)

Publication Number Publication Date
JPS57153071A true JPS57153071A (en) 1982-09-21
JPS5920705B2 JPS5920705B2 (en) 1984-05-15

Family

ID=12572816

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4015381A Expired JPS5920705B2 (en) 1981-03-19 1981-03-19 gasket

Country Status (1)

Country Link
JP (1) JPS5920705B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59215379A (en) * 1983-05-23 1984-12-05 Nippon Pillar Packing Co Ltd Gasket
JPH08319473A (en) * 1995-05-26 1996-12-03 Nippon Valqua Ind Ltd Joint sheet

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59215379A (en) * 1983-05-23 1984-12-05 Nippon Pillar Packing Co Ltd Gasket
JPH0261994B2 (en) * 1983-05-23 1990-12-21 Nippon Pillar Packing
JPH08319473A (en) * 1995-05-26 1996-12-03 Nippon Valqua Ind Ltd Joint sheet

Also Published As

Publication number Publication date
JPS5920705B2 (en) 1984-05-15

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