JPS54161672A - Expandable styrene polymer particles - Google Patents

Expandable styrene polymer particles

Info

Publication number
JPS54161672A
JPS54161672A JP7039378A JP7039378A JPS54161672A JP S54161672 A JPS54161672 A JP S54161672A JP 7039378 A JP7039378 A JP 7039378A JP 7039378 A JP7039378 A JP 7039378A JP S54161672 A JPS54161672 A JP S54161672A
Authority
JP
Japan
Prior art keywords
polymer particles
styrene polymer
hydrocarbon
thiourea compound
expandable styrene
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
JP7039378A
Other languages
Japanese (ja)
Other versions
JPS5734296B2 (en
Inventor
Yutaka Tagashira
Sadanobu Kato
Masao Atsumi
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.)
Denka Co Ltd
Original Assignee
Denki Kagaku Kogyo KK
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 Denki Kagaku Kogyo KK filed Critical Denki Kagaku Kogyo KK
Priority to JP7039378A priority Critical patent/JPS54161672A/en
Publication of JPS54161672A publication Critical patent/JPS54161672A/en
Publication of JPS5734296B2 publication Critical patent/JPS5734296B2/ja
Granted legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: Polymer particles capable of forming fine foams in pre-expanded particles without causing nonuniformity by a temperature change of the outside, obtained by adding a blowing agent consisting of a thiourea compound and a hydrocarbon to styrene polymer particles.
CONSTITUTION: 100 parts by wt. of styrene polymer particles is blended with 1-20 parts by wt. of a blowing agent consisting of 0.0001-0.05 part by wt., preferably 0.0005-0.01 part by wt. of a thiourea compound shown by the formula I, II, or III and a hydrocarbon having a boiling point not higher than a softening point of styrene polymer particles. Propane, cyclobutane, methyl chloride, etc. may be cited as the hydrocarbon; N,N'-dimethylthiourea, pentamethyleneurea, o-tolylenethiourea, etc., as the thiourea compound.
COPYRIGHT: (C)1979,JPO&Japio
JP7039378A 1978-06-13 1978-06-13 Expandable styrene polymer particles Granted JPS54161672A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7039378A JPS54161672A (en) 1978-06-13 1978-06-13 Expandable styrene polymer particles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7039378A JPS54161672A (en) 1978-06-13 1978-06-13 Expandable styrene polymer particles

Publications (2)

Publication Number Publication Date
JPS54161672A true JPS54161672A (en) 1979-12-21
JPS5734296B2 JPS5734296B2 (en) 1982-07-22

Family

ID=13430148

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7039378A Granted JPS54161672A (en) 1978-06-13 1978-06-13 Expandable styrene polymer particles

Country Status (1)

Country Link
JP (1) JPS54161672A (en)

Also Published As

Publication number Publication date
JPS5734296B2 (en) 1982-07-22

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