JPS55125129A - Production of foamable thermoplastic polymer particle - Google Patents

Production of foamable thermoplastic polymer particle

Info

Publication number
JPS55125129A
JPS55125129A JP3267979A JP3267979A JPS55125129A JP S55125129 A JPS55125129 A JP S55125129A JP 3267979 A JP3267979 A JP 3267979A JP 3267979 A JP3267979 A JP 3267979A JP S55125129 A JPS55125129 A JP S55125129A
Authority
JP
Japan
Prior art keywords
thermoplastic polymer
polymer particles
particles
agent
foams
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
JP3267979A
Other languages
Japanese (ja)
Other versions
JPS5921341B2 (en
Inventor
Mitsuru Echigoya
Kiyoshi Mori
Masao Nakagawa
Tatsuhiko Nishida
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.)
Kanegafuchi Chemical Industry Co Ltd
Original Assignee
Kanegafuchi Chemical Industry 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 Kanegafuchi Chemical Industry Co Ltd filed Critical Kanegafuchi Chemical Industry Co Ltd
Priority to JP3267979A priority Critical patent/JPS5921341B2/en
Publication of JPS55125129A publication Critical patent/JPS55125129A/en
Publication of JPS5921341B2 publication Critical patent/JPS5921341B2/en
Expired legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To shorten the cooling time of foams produced from thermoplastic polymer particles thereby improve the production efficiency of the foams, by impregnating the thermoplastic polymer particles containing a blowing agent with a uncleating agent at a temperature higher than the softening point of the particles.
CONSTITUTION: A nucleating agent which is a nonionic surfactant, such as an ester of pentaerythritol, is added to thermoplastic polymer particles containing a blowing agent at a temperature higher than the softening point of the particles. The thermoplastic polymer particles are those of a polymer, such as polystyrene or a copolymer of styrene and other monomers, and are impregnated with a blowing agent, such as propane, butane or CH2Cl2, during or after polymerization of the polymer. For example, polystyrene particles are impregnated with 0.05W1.0wt%, based on the resin, of a nucleating agent at a temperature of 90W100°C. The foamable polymer particles thus produced have a cooling time shortened to half or below, as compared with polymer particles which do not contain the nucleating agent. Moreover, foams which do not expand or distort when released from molds can be obtained.
COPYRIGHT: (C)1980,JPO&Japio
JP3267979A 1979-03-19 1979-03-19 Method for producing expandable thermoplastic polymer particles Expired JPS5921341B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3267979A JPS5921341B2 (en) 1979-03-19 1979-03-19 Method for producing expandable thermoplastic polymer particles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3267979A JPS5921341B2 (en) 1979-03-19 1979-03-19 Method for producing expandable thermoplastic polymer particles

Publications (2)

Publication Number Publication Date
JPS55125129A true JPS55125129A (en) 1980-09-26
JPS5921341B2 JPS5921341B2 (en) 1984-05-19

Family

ID=12365551

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3267979A Expired JPS5921341B2 (en) 1979-03-19 1979-03-19 Method for producing expandable thermoplastic polymer particles

Country Status (1)

Country Link
JP (1) JPS5921341B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992012848A1 (en) * 1991-01-25 1992-08-06 Bouchons A Champagne Sabate Composition for use in the manufacture of corks and process for the manufacture of said composition
JP2001220458A (en) * 2000-02-08 2001-08-14 Mitsubishi Kagaku Form Plastic Kk Foamable styrenic resin particle

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61137964A (en) * 1984-12-10 1986-06-25 株式会社ブリヂストン Floor panel material
JPS62146355A (en) * 1985-12-20 1987-06-30 三菱油化バーデイツシエ株式会社 Floor structure of concrete building
JPS62253867A (en) * 1986-04-23 1987-11-05 日本ゼオン株式会社 Soundproof floor material
JPS62253843A (en) * 1986-04-25 1987-11-05 サダシゲ特殊合板株式会社 Wooden panel material
JPS6311762A (en) * 1986-06-30 1988-01-19 サダシゲ特殊合板株式会社 Wooden panel material

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992012848A1 (en) * 1991-01-25 1992-08-06 Bouchons A Champagne Sabate Composition for use in the manufacture of corks and process for the manufacture of said composition
JP2001220458A (en) * 2000-02-08 2001-08-14 Mitsubishi Kagaku Form Plastic Kk Foamable styrenic resin particle
JP4653278B2 (en) * 2000-02-08 2011-03-16 株式会社ジェイエスピー Expandable styrene resin particles

Also Published As

Publication number Publication date
JPS5921341B2 (en) 1984-05-19

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