NL170425B - METHOD FOR AGGLOMERATING FINE PTFE POWDER AND PRESSED OBJECTS OBTAINED FROM PRESSED POWDERS, PREPARED BY THIS PROCESS - Google Patents

METHOD FOR AGGLOMERATING FINE PTFE POWDER AND PRESSED OBJECTS OBTAINED FROM PRESSED POWDERS, PREPARED BY THIS PROCESS

Info

Publication number
NL170425B
NL170425B NL7116978A NL7116978A NL170425B NL 170425 B NL170425 B NL 170425B NL 7116978 A NL7116978 A NL 7116978A NL 7116978 A NL7116978 A NL 7116978A NL 170425 B NL170425 B NL 170425B
Authority
NL
Netherlands
Prior art keywords
pressed
prepared
ptfe powder
objects obtained
powders
Prior art date
Application number
NL7116978A
Other languages
Dutch (nl)
Other versions
NL170425C (en
NL7116978A (en
Original Assignee
Ici 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 Ici Ltd filed Critical Ici Ltd
Publication of NL7116978A publication Critical patent/NL7116978A/xx
Publication of NL170425B publication Critical patent/NL170425B/en
Application granted granted Critical
Publication of NL170425C publication Critical patent/NL170425C/en

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
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • 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
    • B29B9/08—Making granules by agglomerating smaller particles
    • 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
    • C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C08J2327/18—Homopolymers or copolymers of tetrafluoroethylene

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
NL7116978A 1970-12-11 1971-12-10 METHOD FOR AGGLOMERATING FINE PTFE POWDER AND PRESSED OBJECTS OBTAINED FROM PRESSED POWDERS, PREPARED BY THIS PROCESS NL170425C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB5901670 1970-12-11
GB3495071A GB1369980A (en) 1970-12-11 1971-07-26 Polytetrafluoroethylene moulding powders

Publications (3)

Publication Number Publication Date
NL7116978A NL7116978A (en) 1972-06-13
NL170425B true NL170425B (en) 1982-06-01
NL170425C NL170425C (en) 1982-11-01

Family

ID=26262511

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7116978A NL170425C (en) 1970-12-11 1971-12-10 METHOD FOR AGGLOMERATING FINE PTFE POWDER AND PRESSED OBJECTS OBTAINED FROM PRESSED POWDERS, PREPARED BY THIS PROCESS

Country Status (6)

Country Link
JP (1) JPS5417783B1 (en)
DE (1) DE2161858C3 (en)
FR (1) FR2117685A5 (en)
GB (1) GB1369980A (en)
IT (1) IT946139B (en)
NL (1) NL170425C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3980596A (en) * 1975-04-11 1976-09-14 E. I. Du Pont De Nemours And Co. Process for reducing filler loss
US3980612A (en) * 1975-04-11 1976-09-14 E. I. Du Pont De Nemours And Company Process for reducing filler loss during polytetrafluoroethylene agglomeration
JP3774985B2 (en) * 1997-04-24 2006-05-17 ダイキン工業株式会社 Polytetrafluoroethylene granular powder and process for producing the same
WO1999006475A1 (en) * 1997-08-01 1999-02-11 Daikin Industries, Ltd. Process for producing granular polytetrafluoroethylene powder
US6911489B2 (en) * 2002-06-10 2005-06-28 Asahi Glass Fluoropolymers Usa, Inc. Methods for preparing agglomerated pellets of polytetrafluoroethylene and molded articles and the agglomerated pellets of polytetrafluoroethylene and molded articles prepared thereby

Also Published As

Publication number Publication date
NL170425C (en) 1982-11-01
FR2117685A5 (en) 1972-07-21
IT946139B (en) 1973-05-21
JPS5417783B1 (en) 1979-07-03
DE2161858C3 (en) 1981-02-12
DE2161858B2 (en) 1980-06-04
NL7116978A (en) 1972-06-13
DE2161858A1 (en) 1972-06-29
GB1369980A (en) 1974-10-09

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Legal Events

Date Code Title Description
BB A search report has been drawn up
BC A request for examination has been filed
V1 Lapsed because of non-payment of the annual fee