JPS5698147A - Foamed polyolefin molding by water-impermeable bead method and preparation - Google Patents

Foamed polyolefin molding by water-impermeable bead method and preparation

Info

Publication number
JPS5698147A
JPS5698147A JP17160479A JP17160479A JPS5698147A JP S5698147 A JPS5698147 A JP S5698147A JP 17160479 A JP17160479 A JP 17160479A JP 17160479 A JP17160479 A JP 17160479A JP S5698147 A JPS5698147 A JP S5698147A
Authority
JP
Japan
Prior art keywords
dies
molding
foamed
water
fused
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.)
Pending
Application number
JP17160479A
Other languages
Japanese (ja)
Inventor
Masahiro Atokawa
Takeshi Iwahama
Kenichi Senda
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 JP17160479A priority Critical patent/JPS5698147A/en
Priority to DE19803049201 priority patent/DE3049201A1/en
Priority to BE0/203339A priority patent/BE886886A/en
Priority to FR8027700A priority patent/FR2477467B1/en
Publication of JPS5698147A publication Critical patent/JPS5698147A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/22—After-treatment of expandable particles; Forming foamed products
    • C08J9/228—Forming foamed products
    • C08J9/232—Forming foamed products by sintering expandable particles
    • 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
    • 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
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0068—Permeability to liquids; Adsorption
    • B29K2995/0069—Permeability to liquids; Adsorption non-permeable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/706—Buoys
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Molding Of Porous Articles (AREA)

Abstract

PURPOSE: To prepare water-impermeable foamed polyolefin molding by the bead method by a method wherein a heated, fused foamed-bead molding is left between dies for some time when the resin keeps fluid.
CONSTITUTION: Foamed beads are filled in the dies, heated and fused. Then, when the temperature is high and the resin keeps fluid, the molding is let alone between the dies (in this case, preferably, the exhaust value of the dies is opened, the vapor chamber in the dies and the open air are circulated). Further, the dies to use should be able to change the cavity volume. The foamed bead is heated and fused on condition that the cavity volume is larger than the purposed dimension and when the volume of the cavity is returned to the intended value while the said molding is let alone, the water-impermeability of the molding can be improved remarkably.
COPYRIGHT: (C)1981,JPO&Japio
JP17160479A 1979-12-30 1979-12-30 Foamed polyolefin molding by water-impermeable bead method and preparation Pending JPS5698147A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP17160479A JPS5698147A (en) 1979-12-30 1979-12-30 Foamed polyolefin molding by water-impermeable bead method and preparation
DE19803049201 DE3049201A1 (en) 1979-12-30 1980-12-27 WATERPROOF POLYOLEFINE FOAM AND METHOD FOR THE PRODUCTION THEREOF
BE0/203339A BE886886A (en) 1979-12-30 1980-12-29 PRACTICALLY WATERPROOF POLYOLEFIN FOAM MADE OF EXPANDABLE PEARLS AND PROCESS FOR PREPARING THE SAME
FR8027700A FR2477467B1 (en) 1979-12-30 1980-12-29 PRACTICALLY WATERPROOF POLYOLEFIN FOAM MADE OF EXPANDABLE PEARLS AND PROCESS FOR PREPARING THE SAME

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17160479A JPS5698147A (en) 1979-12-30 1979-12-30 Foamed polyolefin molding by water-impermeable bead method and preparation

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP60281665A Division JPS61148028A (en) 1985-12-14 1985-12-14 Water-non-permeable bead method foamed polyolefin series molded shape

Publications (1)

Publication Number Publication Date
JPS5698147A true JPS5698147A (en) 1981-08-07

Family

ID=15926237

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17160479A Pending JPS5698147A (en) 1979-12-30 1979-12-30 Foamed polyolefin molding by water-impermeable bead method and preparation

Country Status (4)

Country Link
JP (1) JPS5698147A (en)
BE (1) BE886886A (en)
DE (1) DE3049201A1 (en)
FR (1) FR2477467B1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56151736A (en) * 1980-04-26 1981-11-24 Asahi Chem Ind Co Ltd Molded foamed article of crosslinked polyethylene resin
JPS5770621A (en) * 1980-10-20 1982-05-01 Asahi Chem Ind Co Ltd Foamed polyethylene molded object and manufacture tereof
JPS6215928U (en) * 1985-07-16 1987-01-30
JPH0214225A (en) * 1989-05-22 1990-01-18 Asahi Chem Ind Co Ltd Production of expansion-molded article of propylene resin

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60166442A (en) * 1984-02-10 1985-08-29 Kanegafuchi Chem Ind Co Ltd Curing method of polyolefin expansion molded shape

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5037868A (en) * 1973-06-20 1975-04-08
JPS51132278A (en) * 1975-05-14 1976-11-17 Badische Yuka Co Ltd Method of producing styrene resin foaming formed article

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1629281B1 (en) * 1966-04-28 1972-03-23 Basf Ag Process for the production of foam-shaped moldings from olefin polymers
SE359557B (en) * 1968-02-21 1973-09-03 Basf Ag
DE1778516A1 (en) * 1968-05-08 1971-08-05 Basf Ag Process for the production of molded articles from foam-shaped olefin polymers
DE1923906A1 (en) * 1968-05-20 1969-11-27 Dart Ind Inc Plastic cups and process for their manufacture
DE1769862A1 (en) * 1968-07-27 1971-09-16 Basf Ag Process for the production of molded articles from foamable ethylene polymers

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5037868A (en) * 1973-06-20 1975-04-08
JPS51132278A (en) * 1975-05-14 1976-11-17 Badische Yuka Co Ltd Method of producing styrene resin foaming formed article

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56151736A (en) * 1980-04-26 1981-11-24 Asahi Chem Ind Co Ltd Molded foamed article of crosslinked polyethylene resin
JPS6311974B2 (en) * 1980-04-26 1988-03-16 Asahi Chemical Ind
JPS5770621A (en) * 1980-10-20 1982-05-01 Asahi Chem Ind Co Ltd Foamed polyethylene molded object and manufacture tereof
JPS6311975B2 (en) * 1980-10-20 1988-03-16 Asahi Chemical Ind
JPS6215928U (en) * 1985-07-16 1987-01-30
JPH0214225A (en) * 1989-05-22 1990-01-18 Asahi Chem Ind Co Ltd Production of expansion-molded article of propylene resin
JPH0428739B2 (en) * 1989-05-22 1992-05-15 Asahi Chemical Ind

Also Published As

Publication number Publication date
FR2477467A1 (en) 1981-09-11
DE3049201C2 (en) 1992-09-03
DE3049201A1 (en) 1981-09-17
FR2477467B1 (en) 1985-10-25
BE886886A (en) 1981-06-29

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