CA1250088A - Method of recovering volatile foaming agent from prefoamed beads of polyolefin resins - Google Patents

Method of recovering volatile foaming agent from prefoamed beads of polyolefin resins

Info

Publication number
CA1250088A
CA1250088A CA000493326A CA493326A CA1250088A CA 1250088 A CA1250088 A CA 1250088A CA 000493326 A CA000493326 A CA 000493326A CA 493326 A CA493326 A CA 493326A CA 1250088 A CA1250088 A CA 1250088A
Authority
CA
Canada
Prior art keywords
foaming agent
beads
prefoamed
prefoamed beads
volatile foaming
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
CA000493326A
Other languages
English (en)
French (fr)
Inventor
Hirofumi Maeda
Naruhiko Akamatsu
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
Application granted granted Critical
Publication of CA1250088A publication Critical patent/CA1250088A/en
Expired 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
    • C08J11/00—Recovery or working-up of waste materials
    • C08J11/02—Recovery or working-up of waste materials of solvents, plasticisers or unreacted monomers
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/09—Pre-expansion of foamed polystyrene

Landscapes

  • Chemical & Material Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Sustainable Development (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Treating Waste Gases (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
CA000493326A 1984-10-23 1985-10-18 Method of recovering volatile foaming agent from prefoamed beads of polyolefin resins Expired CA1250088A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP59222524A JPS61101539A (ja) 1984-10-23 1984-10-23 ポリオレフイン系樹脂予備発泡粒子中の揮発性発泡剤の回収方法
JP222524/84 1984-10-23

Publications (1)

Publication Number Publication Date
CA1250088A true CA1250088A (en) 1989-02-14

Family

ID=16783777

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000493326A Expired CA1250088A (en) 1984-10-23 1985-10-18 Method of recovering volatile foaming agent from prefoamed beads of polyolefin resins

Country Status (5)

Country Link
US (1) US4682989A (https=)
EP (1) EP0182130A3 (https=)
JP (1) JPS61101539A (https=)
KR (1) KR930003895B1 (https=)
CA (1) CA1250088A (https=)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2547788B2 (ja) * 1987-08-28 1996-10-23 株式会社東芝 発泡体の処理法
JPH0730201B2 (ja) * 1988-05-19 1995-04-05 鐘淵化学工業株式会社 ポリオレフィン系樹脂予備発泡粒子の後処理法
DE3822851A1 (de) * 1988-07-06 1990-01-11 Landahl Claus Dieter Verfahren zur rueckgewinnung von fluorchlorkohlenwasserstoffen aus polyurethanhartschaum
JPH04325534A (ja) * 1991-04-25 1992-11-13 Sekisui Plastics Co Ltd 発泡性ポリスチレン系樹脂粒子およびその製造方法
US5160354A (en) * 1991-05-14 1992-11-03 Du Pont Canada Inc. Process and apparatus for extraction and recovery of blowing agents from polymeric foams
US5385698A (en) * 1992-04-23 1995-01-31 Saturn Corporation Dimensionally accurate expanded foam casting pattern
DE4224749A1 (de) * 1992-07-27 1994-02-03 Adelmann Ag Verfahren zur Beseitigung von in Kunststoff gebundenen Treibmittelgasen sowie Anlage zur Durchführung des Verfahrens
US5858288A (en) * 1996-07-18 1999-01-12 Bullard; Calvin P. Method for molding expandable polystyrene foam articles
CN109134917A (zh) * 2018-09-26 2019-01-04 福建远东技术服务有限公司 一种去除eva/pe发泡材料中甲酰胺的装置及方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2838801A (en) * 1957-03-29 1958-06-17 Dow Chemical Co Process for making fire-resistant cellular vinyl aromatic polymer articles
DE1629296C3 (de) * 1966-08-30 1974-07-25 Basf Ag, 6700 Ludwigshafen Verfahren zum Herstellen geschlossenzelliger Schaumstoffteilchen
DE1908616C3 (de) * 1969-02-21 1978-04-20 Friedrich 6702 Bad Duerkheim Heck Verfahren zum Herstellen von Formkörpern aus Schaumpolystyrol unter Verwendung von vorgeschäumten Polystyrolteilchen
US3607999A (en) * 1969-06-19 1971-09-21 Dow Chemical Co Foam scrap recovery and apparatus
US3883624A (en) * 1971-11-18 1975-05-13 Grandview Ind Limited Recovery and utilization of scrap in production of foamed thermoplastic polymeric products
US3859404A (en) * 1972-10-19 1975-01-07 Arco Polymers Inc Densifying plastic foam scrap
US4065532A (en) * 1974-04-11 1977-12-27 Basf Aktiengesellschaft Process for the admixture of additives into plastics with simultaneous removal of volatile constituents
JPS5850572B2 (ja) * 1980-05-09 1983-11-11 大同酸素株式会社 ブロ−ガス回収を伴う中空成形品の製造方法
JPS5923731B2 (ja) * 1980-11-22 1984-06-04 日本スチレンペ−パ−株式会社 ポリプロピレン系樹脂予備発泡粒子
US4415680A (en) * 1980-12-18 1983-11-15 Kanegafuchi Kagaku Kogyo Kabushiki Kaisha Water-impermeable polyolefin foam and process for preparing the same
JPS57118077A (en) * 1981-01-06 1982-07-22 Central Glass Co Ltd Manufacture of glazed ceramic substrate
JPS5936927A (ja) * 1982-08-25 1984-02-29 Hitachi Ltd 半導体気相成長装置
JPS59227426A (ja) * 1983-06-10 1984-12-20 Idemitsu Petrochem Co Ltd 熱可塑性樹脂発泡体の製造法
US4531951A (en) * 1983-12-19 1985-07-30 Cellu Products Company Method and apparatus for recovering blowing agent in foam production

Also Published As

Publication number Publication date
JPH0513173B2 (https=) 1993-02-19
KR860003291A (ko) 1986-05-23
JPS61101539A (ja) 1986-05-20
US4682989A (en) 1987-07-28
EP0182130A2 (en) 1986-05-28
KR930003895B1 (ko) 1993-05-15
EP0182130A3 (en) 1987-09-02

Similar Documents

Publication Publication Date Title
US4258729A (en) Novel tobacco product and improved process for the expansion of tobacco
CA1250088A (en) Method of recovering volatile foaming agent from prefoamed beads of polyolefin resins
US4235250A (en) Process for the expansion of tobacco
US4531950A (en) Method and apparatus for recovering blowing agent from scrap foam
US4531529A (en) Process for increasing filling capacity of tobacco
US4336814A (en) Process for expanding tobacco
US4531951A (en) Method and apparatus for recovering blowing agent in foam production
BG61635B1 (bg) Метод за раздуване на тютюн
GB2080813A (en) Process for producing foamed olefin resin articles
US4460000A (en) Vacuum and gas expansion of tobacco
CA1115163A (en) Tobacco product and improved process for the expansion of tobacco
NZ241484A (en) Method for expanding cellular material such as tobacco by treating with liquid co2
US4250898A (en) Carbon dioxide impregnation of tobacco by super cooling
US4333483A (en) Tobacco product
JPH0458309B2 (https=)
CA2198146A1 (en) Method of preparing expanded polyolefin particles
JPH0755144B2 (ja) タバコの膨張方法
EP0344538B1 (en) Process for post-treating pre-expanded polyolefin resin particles
US5821272A (en) Method for post-treatment of polyolefin resin pre-expanded particles
JPS6113972B2 (https=)
AU2003246646B2 (en) Method for improving the loading capacity of tobacco
JPH0747659B2 (ja) 熱可塑性樹脂粒子の予備発泡方法
US1501791A (en) Gas-expanded vulcanized-rubber substance and process for making the same
EP0050956A1 (en) Process for the vulcanization of elastomer products
CA1115164A (en) Tobacco product and improved process for the expansion of tobacco

Legal Events

Date Code Title Description
MKEX Expiry