JPS56159116A - Method of coarse granulation of crystalline polyolefin powder and coarse granules - Google Patents

Method of coarse granulation of crystalline polyolefin powder and coarse granules

Info

Publication number
JPS56159116A
JPS56159116A JP6226280A JP6226280A JPS56159116A JP S56159116 A JPS56159116 A JP S56159116A JP 6226280 A JP6226280 A JP 6226280A JP 6226280 A JP6226280 A JP 6226280A JP S56159116 A JPS56159116 A JP S56159116A
Authority
JP
Japan
Prior art keywords
powder
coarse
particles
fused
crystalline polyolefin
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
JP6226280A
Other languages
Japanese (ja)
Inventor
Koichi Matsumoto
Hiroshi Yatani
Hisaya Sakurai
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.)
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi 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 Asahi Chemical Industry Co Ltd filed Critical Asahi Chemical Industry Co Ltd
Priority to JP6226280A priority Critical patent/JPS56159116A/en
Priority to CA000375629A priority patent/CA1176810A/en
Priority to GB8112731A priority patent/GB2077272B/en
Priority to DE19813118499 priority patent/DE3118499C2/en
Publication of JPS56159116A publication Critical patent/JPS56159116A/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
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/12—Powdering or granulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/16—Auxiliary treatment of granules
    • 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

Abstract

PURPOSE: To effect coarse granulation of crystalline polyolefin fine powder at lower energy, by giving the powder a flow rate enough to evade formation of conglomerates thereof at a temperature wherein particles of the powder are fused to adhere to each other to obtain the adhered particles.
CONSTITUTION: Crystalline polyolefin powder produced by suspension polymerization or gas phase polymerization and having an average particle size of smaller than 30 meshes and an average molecular weight of larger than 50,000 is introduced into a high-speed mixer such as Henschel mixer, is given a flow rate sufficient to evade formation of conglomerates thereof at a temperature wherein particles of the powder are fused to adhere to each other so that fused particles are obtained, and then, if required, is ground to obtain coarse polyolefin granules having an average particle size thereof larger than 25 meshes.
EFFECT: The coarse granules obtained as such may be molded by extrusion molding or injection molding in the same manner as in the case for pellets, and in addition may be subjected to powder molding such as sinter forming or compression molding.
COPYRIGHT: (C)1981,JPO&Japio
JP6226280A 1980-05-13 1980-05-13 Method of coarse granulation of crystalline polyolefin powder and coarse granules Pending JPS56159116A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP6226280A JPS56159116A (en) 1980-05-13 1980-05-13 Method of coarse granulation of crystalline polyolefin powder and coarse granules
CA000375629A CA1176810A (en) 1980-05-13 1981-04-16 Enlarged powder particles of crystalline polyolefin and method of producing the same
GB8112731A GB2077272B (en) 1980-05-13 1981-04-24 Enlarged powder particles of crystalline polyolefin and method of producing the same
DE19813118499 DE3118499C2 (en) 1980-05-13 1981-05-09 Process for making enlarged polyolefin powder particles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6226280A JPS56159116A (en) 1980-05-13 1980-05-13 Method of coarse granulation of crystalline polyolefin powder and coarse granules

Publications (1)

Publication Number Publication Date
JPS56159116A true JPS56159116A (en) 1981-12-08

Family

ID=13195051

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6226280A Pending JPS56159116A (en) 1980-05-13 1980-05-13 Method of coarse granulation of crystalline polyolefin powder and coarse granules

Country Status (4)

Country Link
JP (1) JPS56159116A (en)
CA (1) CA1176810A (en)
DE (1) DE3118499C2 (en)
GB (1) GB2077272B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6262710A (en) * 1985-09-13 1987-03-19 Achilles Corp Manufacture of synthetic resin granule
JP2020531632A (en) * 2017-08-17 2020-11-05 セラニーズ・セールス・ジャーマニー・ゲーエムベーハー Polymer compositions for producing gel extruded articles and polymer articles produced from them

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9386803B2 (en) 2010-01-06 2016-07-12 Celanese Acetate Llc Tobacco smoke filter for smoking device with porous mass of active particulate
BR112012028077A2 (en) * 2010-05-03 2016-08-02 Ticona Llc polyethylene powders and porous articles thereof
JP5728584B2 (en) 2010-10-15 2015-06-03 セラニーズ アセテート，エルエルシー Apparatus, system, and related method for forming a porous body for a smoke filter

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1426438A (en) * 1964-01-18 1966-01-28 Hoechst Ag Process for conditioning olefin polymers in powder form for the preparation of shaped articles
US3527845A (en) * 1967-06-28 1970-09-08 Avisun Corp Method of reducing fines in alphaolefin polymer powder

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6262710A (en) * 1985-09-13 1987-03-19 Achilles Corp Manufacture of synthetic resin granule
JPH0553605B2 (en) * 1985-09-13 1993-08-10 Achilles Corp
JP2020531632A (en) * 2017-08-17 2020-11-05 セラニーズ・セールス・ジャーマニー・ゲーエムベーハー Polymer compositions for producing gel extruded articles and polymer articles produced from them

Also Published As

Publication number Publication date
GB2077272A (en) 1981-12-16
DE3118499A1 (en) 1982-03-25
GB2077272B (en) 1983-11-23
CA1176810A (en) 1984-10-30
DE3118499C2 (en) 1984-07-26

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