GB1498656A - Preparation of agglomerated granules - Google Patents

Preparation of agglomerated granules

Info

Publication number
GB1498656A
GB1498656A GB21914/75A GB2191475A GB1498656A GB 1498656 A GB1498656 A GB 1498656A GB 21914/75 A GB21914/75 A GB 21914/75A GB 2191475 A GB2191475 A GB 2191475A GB 1498656 A GB1498656 A GB 1498656A
Authority
GB
United Kingdom
Prior art keywords
functional group
water
tetrafluoroethylene polymer
fabricable
organosilane
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
GB21914/75A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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
Priority claimed from US531482A external-priority patent/US3929721A/en
Priority claimed from US531481A external-priority patent/US3915916A/en
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB1498656A publication Critical patent/GB1498656A/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
    • C08J3/20—Compounding polymers with additives, e.g. colouring
    • C08J3/205—Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/54—Silicon-containing compounds
    • C08K5/544—Silicon-containing compounds containing nitrogen
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00—Compositions 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; Compositions of derivatives of such polymers
    • C08L27/02—Compositions 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; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/12—Compositions 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; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C08L27/18—Homopolymers or copolymers or tetrafluoroethene
    • 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)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

1498656 Agglomerating tetrafluoroethylene polymer/filler blends E I DU PONT DE NEMOURS & CO 21 May 1975 [24 May 1974 (2) 11 Dec 1974 (2)] 21914/75 Heading C3P Non - melt - fabricable granular tetrafluoroethylene polymer particles of average size below 200 microns and particulate hydrophilic filler particles are agitated in a water/immiscible organic liquid medium in the presence of an organosilane and/or a soluble (i.e. non-crosslinked) silicone resin. The organosilane has at least one amino functional group attached to the Si atom through a Si-C bond and at least one hydroxyl or water-hydrolysable functional group attached directly to the Si atom. The amino functional group may be a C 1-14 aliphatic or aromatic group having a primary, secondary or tertiary amino substituent; the water-hydrolysable group may be OH, Cl, F or C 1-5 alkoxy; any remaining groups attached to Si may be alkyl, aryl, aralkyl and alkaryl. The silicone resin contains the recurring structure where R<SP>1</SP> and R<SP>11</SP> are both C 1-20 hydrocarbyl or one of R<SP>1</SP> and R<SP>11</SP> is H and the other is C 1-20 hydrocarbyl. In examples, the organic liquid was tetrachloroethylene and the organosilicon compound was (1) γ-aminopropyl triethoxysilane, (2) phenylmethyl siloxane and (4) a mixture of α-aminopropyl triethoxysilane and phenyl methyl siloxane. The tetrafluoroethylene polymer may be a homopolymer or a copolymer which is non-melt-fabricable and contains, e.g up to 2% of units derived from C 3-6 perfluoroalkenes. Exemplified fillers are glass fibres, bronze/molybdenum sulphide and bronze.
GB21914/75A 1974-05-24 1975-05-21 Preparation of agglomerated granules Expired GB1498656A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US47315874A 1974-05-24 1974-05-24
US47315974A 1974-05-24 1974-05-24
US531482A US3929721A (en) 1974-05-24 1974-12-11 Process for reducing filler loss in tetrafluoroethylene polymer particles
US531481A US3915916A (en) 1974-05-24 1974-12-11 Process for reducing filler loss

Publications (1)

Publication Number Publication Date
GB1498656A true GB1498656A (en) 1978-01-25

Family

ID=27504180

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21914/75A Expired GB1498656A (en) 1974-05-24 1975-05-21 Preparation of agglomerated granules

Country Status (2)

Country Link
FR (1) FR2272133B1 (en)
GB (1) GB1498656A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2906598C2 (en) * 1979-02-21 1983-11-10 Georg Spiess Gmbh, 8906 Gersthofen Device for accomplishing a flying winding roll change

Also Published As

Publication number Publication date
FR2272133B1 (en) 1979-04-06
FR2272133A1 (en) 1975-12-19

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19950520