GB1369980A - Polytetrafluoroethylene moulding powders - Google Patents

Polytetrafluoroethylene moulding powders

Info

Publication number
GB1369980A
GB1369980A GB3495071A GB3495071A GB1369980A GB 1369980 A GB1369980 A GB 1369980A GB 3495071 A GB3495071 A GB 3495071A GB 3495071 A GB3495071 A GB 3495071A GB 1369980 A GB1369980 A GB 1369980A
Authority
GB
United Kingdom
Prior art keywords
moulding powders
polytetrafluoroethylene
polytetrafluoroethylene moulding
powders
moulding
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
GB3495071A
Other languages
English (en)
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries 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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB3495071A priority Critical patent/GB1369980A/en
Priority to NL7116978A priority patent/NL170425C/xx
Priority to IT3228671A priority patent/IT946139B/it
Priority to JP10060071A priority patent/JPS5417783B1/ja
Priority to DE19712161858 priority patent/DE2161858C3/de
Priority to FR7144612A priority patent/FR2117685A5/fr
Priority to US05/473,913 priority patent/US3983200A/en
Publication of GB1369980A publication Critical patent/GB1369980A/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
    • 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)
  • Compositions Of Macromolecular Compounds (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
GB3495071A 1970-12-11 1971-07-26 Polytetrafluoroethylene moulding powders Expired GB1369980A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB3495071A GB1369980A (en) 1970-12-11 1971-07-26 Polytetrafluoroethylene moulding powders
NL7116978A NL170425C (nl) 1970-12-11 1971-12-10 Werkwijze voor het agglomereren van fijn ptfe-poeder, alsmede geperste voorwerpen, verkregen uit perspoeders, bereid volgens deze werkwijze.
IT3228671A IT946139B (it) 1970-12-11 1971-12-11 Polveri per stampaggio di polite trafluoroetilene
JP10060071A JPS5417783B1 (enrdf_load_stackoverflow) 1970-12-11 1971-12-11
DE19712161858 DE2161858C3 (de) 1970-12-11 1971-12-13 Verfahren zur Herstellung von ggf. mit Füllstoffen versehenen rieselfähigen Polytetrafluoräthylen-Formpulvern
FR7144612A FR2117685A5 (enrdf_load_stackoverflow) 1970-12-11 1971-12-13
US05/473,913 US3983200A (en) 1970-12-11 1974-05-28 Method for the production of polytetrafluoroethylene moulding powders

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 (1)

Publication Number Publication Date
GB1369980A true GB1369980A (en) 1974-10-09

Family

ID=26262511

Family Applications (1)

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

Country Status (6)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0980887A4 (en) * 1997-04-24 2000-09-20 Daikin Ind Ltd GRANULAR POLYTETRAFLUOROETHYLENE POWDER AND METHOD FOR THE PRODUCTION THEREOF
EP1000961A4 (en) * 1997-08-01 2000-09-20 Daikin Ind Ltd METHOD FOR PRODUCING A GRANULAR POLYTETRAFLUOROETHYLENE POWDER

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3980612A (en) * 1975-04-11 1976-09-14 E. I. Du Pont De Nemours And Company Process for reducing filler loss during polytetrafluoroethylene agglomeration
US3980596A (en) * 1975-04-11 1976-09-14 E. I. Du Pont De Nemours And Co. Process for reducing filler loss
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

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0980887A4 (en) * 1997-04-24 2000-09-20 Daikin Ind Ltd GRANULAR POLYTETRAFLUOROETHYLENE POWDER AND METHOD FOR THE PRODUCTION THEREOF
US6440559B1 (en) 1997-04-24 2002-08-27 Daikin Industries, Ltd. Granular polytetrafluoroethylene powders and process for producing the same
CN1094950C (zh) * 1997-04-24 2002-11-27 大金工业株式会社 聚四氟乙烯粒状粉末及其制造方法
EP1000961A4 (en) * 1997-08-01 2000-09-20 Daikin Ind Ltd METHOD FOR PRODUCING A GRANULAR POLYTETRAFLUOROETHYLENE POWDER

Also Published As

Publication number Publication date
NL7116978A (enrdf_load_stackoverflow) 1972-06-13
DE2161858A1 (de) 1972-06-29
DE2161858C3 (de) 1981-02-12
IT946139B (it) 1973-05-21
DE2161858B2 (de) 1980-06-04
NL170425B (nl) 1982-06-01
JPS5417783B1 (enrdf_load_stackoverflow) 1979-07-03
NL170425C (nl) 1982-11-01
FR2117685A5 (enrdf_load_stackoverflow) 1972-07-21

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee