JPH0139335B2 - - Google Patents

Info

Publication number
JPH0139335B2
JPH0139335B2 JP56175991A JP17599181A JPH0139335B2 JP H0139335 B2 JPH0139335 B2 JP H0139335B2 JP 56175991 A JP56175991 A JP 56175991A JP 17599181 A JP17599181 A JP 17599181A JP H0139335 B2 JPH0139335 B2 JP H0139335B2
Authority
JP
Japan
Prior art keywords
particles
molded product
random copolymer
materials
propylene random
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.)
Expired
Application number
JP56175991A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5876228A (ja
Inventor
Kuninori Hirozawa
Hideki Kuwabara
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.)
JSP Corp
Original Assignee
JSP 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 JSP Corp filed Critical JSP Corp
Priority to JP56175991A priority Critical patent/JPS5876228A/ja
Publication of JPS5876228A publication Critical patent/JPS5876228A/ja
Publication of JPH0139335B2 publication Critical patent/JPH0139335B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/44—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form
    • B29C44/445—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form in the form of expandable granules, particles or beads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/3415—Heating or cooling
    • B29C44/3426—Heating by introducing steam in the mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/10—Polymers of propylene
    • B29K2023/12—PP, i.e. polypropylene

Landscapes

  • Molding Of Porous Articles (AREA)
JP56175991A 1981-11-02 1981-11-02 ポリプロピレン系合成樹脂発泡成型体 Granted JPS5876228A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56175991A JPS5876228A (ja) 1981-11-02 1981-11-02 ポリプロピレン系合成樹脂発泡成型体

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56175991A JPS5876228A (ja) 1981-11-02 1981-11-02 ポリプロピレン系合成樹脂発泡成型体

Publications (2)

Publication Number Publication Date
JPS5876228A JPS5876228A (ja) 1983-05-09
JPH0139335B2 true JPH0139335B2 (en, 2012) 1989-08-21

Family

ID=16005785

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56175991A Granted JPS5876228A (ja) 1981-11-02 1981-11-02 ポリプロピレン系合成樹脂発泡成型体

Country Status (1)

Country Link
JP (1) JPS5876228A (en, 2012)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69903593T2 (de) * 1998-06-11 2003-06-18 Jsp Corp., Tokio/Tokyo Geformter Gegenstand aus geschäumten und expandierten Propylenperlen

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5646735A (en) * 1979-09-25 1981-04-28 Japan Styrene Paper Co Ltd Freparation of polyolefin series resin foamed molding body

Also Published As

Publication number Publication date
JPS5876228A (ja) 1983-05-09

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