DE1679830C3 - Verfahren zur Herstellung eines Granulats aus pulvrigem Polytetrafluoräthylen - Google Patents
Verfahren zur Herstellung eines Granulats aus pulvrigem PolytetrafluoräthylenInfo
- Publication number
- DE1679830C3 DE1679830C3 DE1679830A DE1679830A DE1679830C3 DE 1679830 C3 DE1679830 C3 DE 1679830C3 DE 1679830 A DE1679830 A DE 1679830A DE 1679830 A DE1679830 A DE 1679830A DE 1679830 C3 DE1679830 C3 DE 1679830C3
- Authority
- DE
- Germany
- Prior art keywords
- granules
- granulate
- ptfe
- powder
- suspending agent
- 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
Links
- 239000008187 granular material Substances 0.000 title claims description 59
- 229920001343 polytetrafluoroethylene Polymers 0.000 title claims description 43
- 239000004810 polytetrafluoroethylene Substances 0.000 title claims description 43
- 238000000034 method Methods 0.000 title claims description 22
- -1 polytetrafluoroethylene Polymers 0.000 title claims description 15
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 239000000843 powder Substances 0.000 claims description 31
- 238000003756 stirring Methods 0.000 claims description 25
- 239000000375 suspending agent Substances 0.000 claims description 17
- 239000000203 mixture Substances 0.000 claims description 10
- 238000005245 sintering Methods 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 4
- 150000001335 aliphatic alkanes Chemical class 0.000 claims description 3
- 125000003277 amino group Chemical group 0.000 claims description 3
- 125000001820 oxy group Chemical group [*:1]O[*:2] 0.000 claims description 3
- 125000001424 substituent group Chemical group 0.000 claims description 3
- 239000012442 inert solvent Substances 0.000 claims 1
- 239000002245 particle Substances 0.000 description 28
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 26
- 239000000725 suspension Substances 0.000 description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 239000000463 material Substances 0.000 description 13
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 12
- 239000000047 product Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 238000001035 drying Methods 0.000 description 8
- 238000005469 granulation Methods 0.000 description 7
- 230000003179 granulation Effects 0.000 description 7
- 239000007858 starting material Substances 0.000 description 7
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 6
- 238000009826 distribution Methods 0.000 description 6
- 229920000642 polymer Polymers 0.000 description 6
- 238000005054 agglomeration Methods 0.000 description 5
- 230000002776 aggregation Effects 0.000 description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 239000012798 spherical particle Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 239000004815 dispersion polymer Substances 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229920000151 polyglycol Polymers 0.000 description 2
- 239000010695 polyglycol Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000005029 sieve analysis Methods 0.000 description 2
- 239000000080 wetting agent Substances 0.000 description 2
- QQGRFMIMXPWKPM-UHFFFAOYSA-N 2,3,4-tributylphenol Chemical compound CCCCC1=CC=C(O)C(CCCC)=C1CCCC QQGRFMIMXPWKPM-UHFFFAOYSA-N 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 description 1
- UHZZMRAGKVHANO-UHFFFAOYSA-M chlormequat chloride Chemical compound [Cl-].C[N+](C)(C)CCCl UHZZMRAGKVHANO-UHFFFAOYSA-M 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- HCDGVLDPFQMKDK-UHFFFAOYSA-N hexafluoropropylene Chemical compound FC(F)=C(F)C(F)(F)F HCDGVLDPFQMKDK-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- UWJJYHHHVWZFEP-UHFFFAOYSA-N pentane-1,1-diol Chemical class CCCCC(O)O UWJJYHHHVWZFEP-UHFFFAOYSA-N 0.000 description 1
- SNGREZUHAYWORS-UHFFFAOYSA-N perfluorooctanoic acid Chemical compound OC(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F SNGREZUHAYWORS-UHFFFAOYSA-N 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- AOHJOMMDDJHIJH-UHFFFAOYSA-N propylenediamine Chemical compound CC(N)CN AOHJOMMDDJHIJH-UHFFFAOYSA-N 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000001256 steam distillation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- 150000004072 triols Chemical class 0.000 description 1
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
-
- 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
- C08J3/122—Pulverisation by spraying
-
- 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
- C08J9/0014—Use of organic additives
- C08J9/0023—Use of organic additives containing oxygen
-
- 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)
- Emergency Medicine (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF0048053 | 1965-12-30 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE1679830A1 DE1679830A1 (de) | 1971-03-25 |
| DE1679830B2 DE1679830B2 (de) | 1973-04-26 |
| DE1679830C3 true DE1679830C3 (de) | 1974-01-10 |
Family
ID=7102006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1679830A Expired DE1679830C3 (de) | 1965-12-30 | 1965-12-30 | Verfahren zur Herstellung eines Granulats aus pulvrigem Polytetrafluoräthylen |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3532782A (enExample) |
| AT (1) | AT274355B (enExample) |
| BE (1) | BE692028A (enExample) |
| CH (1) | CH484957A (enExample) |
| DE (1) | DE1679830C3 (enExample) |
| ES (1) | ES334996A1 (enExample) |
| FR (1) | FR1509246A (enExample) |
| GB (1) | GB1173000A (enExample) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3882217A (en) * | 1970-12-11 | 1975-05-06 | Ici Ltd | Method for the production of free-flowing polytetrafluoroethylene molding powders |
| JPS5032098B2 (enExample) * | 1972-08-09 | 1975-10-17 | ||
| US3953412A (en) * | 1972-08-09 | 1976-04-27 | Takumi Saito | Sintered micro-powder of tetrafluoroethylene polymers |
| US4087517A (en) * | 1974-10-21 | 1978-05-02 | Charles L. Wragg, Jr. | Method of dry lubricating the skin |
| DE2744244C3 (de) * | 1977-10-01 | 1981-01-08 | Hoechst Ag, 6000 Frankfurt | Thermisch vorbehandeltes, aus der Schmelze nicht verarbeitbares, mit einem perfluorierten Monomeren modifiziertes Tetrafluoräthylen-Polymerisatpulver und Verfahren zur Herstellung von Pulvern von aus der Schmelze nicht verarbeitbaren Tetrafluoräthylen-Polymerisaten mit hohem Schüttgewicht und guter Rieselfähigkeit |
| DE3207744A1 (de) * | 1982-03-04 | 1983-09-08 | Ruhrchemie Ag, 4200 Oberhausen | Verfahren zur herstellung rieselfaehiger homo- oder copolymerwachse des ethylens |
| EP0172750A3 (en) * | 1984-08-22 | 1987-03-18 | E.I. Du Pont De Nemours And Company | Porous structures |
| US5502161A (en) * | 1994-12-21 | 1996-03-26 | Ici Americas Inc. | Method for the production of free-flowing tetrafluoroethylene polymer molding powders |
| WO1997011111A1 (en) * | 1995-09-18 | 1997-03-27 | Daikin Industries, Ltd. | Filled polytetrafluoroethylene granular powder and process for the production thereof |
| WO1997015611A1 (en) * | 1995-10-27 | 1997-05-01 | Daikin Industries, Ltd. | Granular powder of filled polytetrafluoroethylene and process for the production thereof |
| DE102011078766B4 (de) * | 2011-07-06 | 2017-02-02 | Leibniz-Institut Für Polymerforschung Dresden E.V. | Verfahren zur verarbeitung von ptfe |
| CN119928144B (zh) * | 2025-01-25 | 2025-09-02 | 宁波氟懿高分子材料有限公司 | 一种含氟树脂导管表面处理方法 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3265679A (en) * | 1963-09-19 | 1966-08-09 | Pennsalt Chemicals Corp | Chemical product and method for its manufacture |
| GB1100388A (en) * | 1964-05-18 | 1968-01-24 | Daikin Ind Ltd | Polytetrafluoroethylene powder and method of preparation thereof |
-
1965
- 1965-12-30 DE DE1679830A patent/DE1679830C3/de not_active Expired
-
1966
- 1966-12-16 AT AT1162066A patent/AT274355B/de active
- 1966-12-20 US US603170A patent/US3532782A/en not_active Expired - Lifetime
- 1966-12-27 CH CH1859466A patent/CH484957A/de not_active IP Right Cessation
- 1966-12-27 ES ES334996A patent/ES334996A1/es not_active Expired
- 1966-12-30 FR FR89568A patent/FR1509246A/fr not_active Expired
- 1966-12-30 GB GB58328/66A patent/GB1173000A/en not_active Expired
- 1966-12-30 BE BE692028D patent/BE692028A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US3532782A (en) | 1970-10-06 |
| AT274355B (de) | 1969-09-10 |
| ES334996A1 (es) | 1968-03-16 |
| BE692028A (enExample) | 1967-06-30 |
| CH484957A (de) | 1970-01-31 |
| FR1509246A (fr) | 1968-01-12 |
| GB1173000A (en) | 1969-12-03 |
| DE1679830A1 (de) | 1971-03-25 |
| DE1679830B2 (de) | 1973-04-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C3 | Grant after two publication steps (3rd publication) |