JPS57167376A - Sealing material - Google Patents

Sealing material

Info

Publication number
JPS57167376A
JPS57167376A JP56053726A JP5372681A JPS57167376A JP S57167376 A JPS57167376 A JP S57167376A JP 56053726 A JP56053726 A JP 56053726A JP 5372681 A JP5372681 A JP 5372681A JP S57167376 A JPS57167376 A JP S57167376A
Authority
JP
Japan
Prior art keywords
shrinkage
sealing material
foam
closed cells
polyol
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
JP56053726A
Other languages
Japanese (ja)
Other versions
JPS5940863B2 (en
Inventor
Akio Ando
Teruyoshi Miyazawa
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.)
Nitto Boseki Co Ltd
Original Assignee
Nitto Boseki 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 Nitto Boseki Co Ltd filed Critical Nitto Boseki Co Ltd
Priority to JP56053726A priority Critical patent/JPS5940863B2/en
Publication of JPS57167376A publication Critical patent/JPS57167376A/en
Publication of JPS5940863B2 publication Critical patent/JPS5940863B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Sealing Material Composition (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

PURPOSE: A sealing material having closed cells with excellent airtightness and waterproofness, which is obtd. by expanding a compound consisting of a polyol, isocyanate compd., specified hydrophobic material, foaming agent and catalyst and destroying the cells just before the beginning of shrinkage.
CONSTITUTION: After a bituminous and/or similar hydrocarbon compd. is dissolved or dispersed in a polyol, the resulting soln. or dispersion is vigorously mixed with an added foaming agent such as water and catalyst such as dibutyltin dilaurate to obtain a polyurethane foam having closed cells. Then, just before the beginning of shrinkage of the foam, gas diffusion equilibrium between the inside and outside is promoted by removing an outer skin, or a minimum amt. of cellwalls among those forming the closed cells, sufficient to prevent shrinkage of the foam is destroyed by mechanical compression to the extent of 30W50%, to obtain a sealing material of permeability to air ≤20cc/cm2 at a thickness of 10cm.
COPYRIGHT: (C)1982,JPO&Japio
JP56053726A 1981-04-09 1981-04-09 Manufacturing method of sealing material Expired JPS5940863B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56053726A JPS5940863B2 (en) 1981-04-09 1981-04-09 Manufacturing method of sealing material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56053726A JPS5940863B2 (en) 1981-04-09 1981-04-09 Manufacturing method of sealing material

Publications (2)

Publication Number Publication Date
JPS57167376A true JPS57167376A (en) 1982-10-15
JPS5940863B2 JPS5940863B2 (en) 1984-10-03

Family

ID=12950828

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56053726A Expired JPS5940863B2 (en) 1981-04-09 1981-04-09 Manufacturing method of sealing material

Country Status (1)

Country Link
JP (1) JPS5940863B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61291673A (en) * 1985-06-17 1986-12-22 Bridgestone Corp Sealing material
EP0877214A3 (en) * 1997-05-06 2000-03-29 thermosolar TSI AG Solar collector
CN111286004A (en) * 2020-03-31 2020-06-16 中电保力（北京）科技有限公司 Hydrophobic polyurethane anti-condensation air-tight sealing material and preparation method thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5731976A (en) * 1980-08-05 1982-02-20 Nhk Spring Co Ltd Production of polyurethane form sealing material

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5731976A (en) * 1980-08-05 1982-02-20 Nhk Spring Co Ltd Production of polyurethane form sealing material

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61291673A (en) * 1985-06-17 1986-12-22 Bridgestone Corp Sealing material
JPH0548274B2 (en) * 1985-06-17 1993-07-21 Bridgestone Corp
EP0877214A3 (en) * 1997-05-06 2000-03-29 thermosolar TSI AG Solar collector
CN111286004A (en) * 2020-03-31 2020-06-16 中电保力（北京）科技有限公司 Hydrophobic polyurethane anti-condensation air-tight sealing material and preparation method thereof

Also Published As

Publication number Publication date
JPS5940863B2 (en) 1984-10-03

Similar Documents

Publication Publication Date Title
CA1263799C (en) Method for the preparation of semi-rigid polyurethane modified polyurea foam compositions
GB1527338A (en) Process for reinforcing and/or stabilising earth formations and a cartridge for use therein
GB1509066A (en) Smoke-flame retardant hydrophilic polyurethane composition and method of preparing the same
CA2278253A1 (en) Polyol blend, multi-component system for producing polyurethane foam, and foam produced thereby
TR199802707T2 (en) Micro cell elastomeric polyurethane foams.
KR920016515A (en) Rigid urethane foam and its manufacturing method
ATE264879T1 (en) OPEN CELL POLYURETHANE FOAM AND METHOD FOR THE PRODUCTION THEREOF AND COMPOSITIONS FOR PRODUCING SUCH FOAM
JPS57167376A (en) Sealing material
JPS5569626A (en) Porous high-molecular-weight composite with hydrophilic inner surface and its production
JPS57102978A (en) Preparation of polyurethane foam sealing material
MY105559A (en) Polyurethane resin and utilization thereof.
AR228098A1 (en) IMPROVED PROCEDURE TO PRODUCE FLEXIBLE FIREPROOF POLYURETHANE FOAMS, SO-FOUNDED FOAM AND CORRESPONDING COMPOSITION
JPS5731976A (en) Production of polyurethane form sealing material
JPS55158933A (en) Carbonic acid gas absorbing sheet and manufacture thereof
DE3943265C2 (en) Process for the production of plastic foam
BG50935A3 (en) Method for the production of organomineral foam material
ES2137983T3 (en) EXTRUDED FOAM FROM CLOSED CELL PROPYLENE POLYMER.
JPS5525433A (en) Sealing material
JPS5571777A (en) Sealing material
JPS5527315A (en) Production of polyurethane foam
JPS56130A (en) Preparation of continuous foam body of ethylene polymer or copolymer
JPS565815A (en) Preparation of urethane foam
JPS56128830A (en) Vibration-proof construction method
JPS5354299A (en) Foamed product
JPS5765717A (en) Shock absorbing foam