ATE35239T1 - SOLID THERMOPLASTIC FOAM AND ITS MANUFACTURING PROCESS. - Google Patents

SOLID THERMOPLASTIC FOAM AND ITS MANUFACTURING PROCESS.

Info

Publication number
ATE35239T1
ATE35239T1 AT83902287T AT83902287T ATE35239T1 AT E35239 T1 ATE35239 T1 AT E35239T1 AT 83902287 T AT83902287 T AT 83902287T AT 83902287 T AT83902287 T AT 83902287T AT E35239 T1 ATE35239 T1 AT E35239T1
Authority
AT
Austria
Prior art keywords
less
foamed body
expanded
cell
thermoplastic resin
Prior art date
Application number
AT83902287T
Other languages
German (de)
Inventor
Takao Kadota
Masayuki Hashimoto
Itsuo Hamada
Original Assignee
Dow Chemical Co
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 Dow Chemical Co filed Critical Dow Chemical Co
Priority claimed from PCT/JP1983/000232 external-priority patent/WO1985000553A1/en
Application granted granted Critical
Publication of ATE35239T1 publication Critical patent/ATE35239T1/en

Links

Landscapes

  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

Foamed body which is made by foaming rigid thermoplastic resin, which has a density of 3-17 kg/m3 and a dynamic spring constant of 40 times 10 power (6) or less, and in which the minimum value of 60% compression set measured on three mutually normal axes is 25% or less, the average cell dia. is 2.0 mm or less, the independent cell ratio is 50% or more and the cell structure contains a large number of ripples the start from the boundary of three or more cells and extend towards the centre of the cell membrane. In the foamed body mfr. a rigid thermoplastic resin foamed body is expanded by heating or 1 min or more in a steam atmosphere or water at 85 deg. C or more. It is shrunk to 70% or less of the final body vol., and then is matured and expanded for 24 hrs or more in a dry chamber at a temp. of 40 deg. C or more which is less than the resin's softening pt.
AT83902287T 1983-07-20 1983-07-20 SOLID THERMOPLASTIC FOAM AND ITS MANUFACTURING PROCESS. ATE35239T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/JP1983/000232 WO1985000553A1 (en) 1982-01-25 1983-07-20 Rigid thermoplastic resin foam and process for its production
EP83902287A EP0151183B1 (en) 1982-01-25 1983-07-20 Rigid thermoplastic resin foam and process for its production

Publications (1)

Publication Number Publication Date
ATE35239T1 true ATE35239T1 (en) 1988-07-15

Family

ID=13790023

Family Applications (1)

Application Number Title Priority Date Filing Date
AT83902287T ATE35239T1 (en) 1983-07-20 1983-07-20 SOLID THERMOPLASTIC FOAM AND ITS MANUFACTURING PROCESS.

Country Status (3)

Country Link
AT (1) ATE35239T1 (en)
DE (1) DE3377118D1 (en)
NO (1) NO168834C (en)

Also Published As

Publication number Publication date
NO168834C (en) 1992-04-08
DE3377118D1 (en) 1988-07-28
NO168834B (en) 1991-12-30
NO851087L (en) 1985-03-19

Similar Documents

Publication Publication Date Title
US3940811A (en) Lightweight construction materials and articles made thereof
US4459247A (en) Method for producing earplugs of foamed plastic
CA2052846A1 (en) Foaming thermoplastic elastomers
JPS572343A (en) Foam of crosslinked vinyl chloride resin and its preparation
DK1115777T3 (en) Perforated foam
ES2183792T3 (en) SEMIRRIGID FOAMS OF OPEN CELL WITH EXFOLIATING GRAPHITE.
SE7605245L (en) IMITATION OF NATURAL MUSHROOMS BASED ON DENSIFIED HYDROPHILT FOAM AND PROCEDURE FOR MAKING IT
CA2179369A1 (en) Method of producing microporous thermoplastic resin membrane
CA2132448A1 (en) Polystyrene foam and process for making the same
JPS5731935A (en) Manufacture of cation exchange membrane and membrane obtained thereby
ES8203400A1 (en) Siloxane copolymer mixtures useful as foam stabilizers in high resilience polyurethane foam.
DK615089D0 (en) POLYOLIC MATERIAL, POLYISOCYANATE-BASED FOAM PREPARED WITH USE THEREOF, AND METHOD FOR PRODUCING THE FOAM
DE3267473D1 (en) Vibration-damping arrangement
CA2099271A1 (en) Energy Absorbing, Water Blown, Rigid Polyurethane Foam
HUT59891A (en) Porous foamed plaster and process for producing it
ATE35239T1 (en) SOLID THERMOPLASTIC FOAM AND ITS MANUFACTURING PROCESS.
ES2047201T3 (en) PROCESS TO PRODUCE RIGID POLYURETHANE FOAM.
ES8306769A1 (en) Open-cell shaped articles made of polyvinyl acetals.
JPS57164115A (en) Semiflexible foam polymer packaging
NO952401D0 (en) Extruded closed cell propylene polymer foam, as well as a process for preparing it
MX9704620A (en) Preparation of flexible, flame-bondable polyurethane-polyether foams having improved adhesion.
JPS53134876A (en) Production of hydrophilic composite construction
JPS5773594A (en) Production of diaphragm for speaicer
JPS5354299A (en) Foamed product
JP2002275301A (en) Manufacturing method of crosslinked polyethylene-open cell foam

Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee