CH484957A - Verfahren zur Herstellung von Polytetrafluoräthylen-Granulat - Google Patents
Verfahren zur Herstellung von Polytetrafluoräthylen-GranulatInfo
- Publication number
- CH484957A CH484957A CH1859466A CH1859466A CH484957A CH 484957 A CH484957 A CH 484957A CH 1859466 A CH1859466 A CH 1859466A CH 1859466 A CH1859466 A CH 1859466A CH 484957 A CH484957 A CH 484957A
- Authority
- CH
- Switzerland
- Prior art keywords
- production
- polytetrafluoroethylene granules
- polytetrafluoroethylene
- granules
- Prior art date
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
-
- 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 (1)
| Publication Number | Publication Date |
|---|---|
| CH484957A true CH484957A (de) | 1970-01-31 |
Family
ID=7102006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1859466A CH484957A (de) | 1965-12-30 | 1966-12-27 | Verfahren zur Herstellung von Polytetrafluoräthylen-Granulat |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3532782A (h) |
| AT (1) | AT274355B (h) |
| BE (1) | BE692028A (h) |
| CH (1) | CH484957A (h) |
| DE (1) | DE1679830C3 (h) |
| ES (1) | ES334996A1 (h) |
| FR (1) | FR1509246A (h) |
| GB (1) | GB1173000A (h) |
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 |
| US3953412A (en) * | 1972-08-09 | 1976-04-27 | Takumi Saito | Sintered micro-powder of tetrafluoroethylene polymers |
| JPS5032098B2 (h) * | 1972-08-09 | 1975-10-17 | ||
| 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 |
| RU2182912C2 (ru) * | 1995-09-18 | 2002-05-27 | Дайкин Индастриз, Лтд. | Гранулированный порошок из политетрафторэтилена, содержащего наполнитель (варианты), и способ его получения |
| WO1997015611A1 (fr) * | 1995-10-27 | 1997-05-01 | Daikin Industries, Ltd. | Poudre granulaire comportant du polytetrafluoroethylene et procede de fabrication |
| 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 ES ES334996A patent/ES334996A1/es not_active Expired
- 1966-12-27 CH CH1859466A patent/CH484957A/de not_active IP Right Cessation
- 1966-12-30 GB GB58328/66A patent/GB1173000A/en not_active Expired
- 1966-12-30 FR FR89568A patent/FR1509246A/fr not_active Expired
- 1966-12-30 BE BE692028D patent/BE692028A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1679830C3 (de) | 1974-01-10 |
| US3532782A (en) | 1970-10-06 |
| DE1679830A1 (de) | 1971-03-25 |
| FR1509246A (fr) | 1968-01-12 |
| AT274355B (de) | 1969-09-10 |
| GB1173000A (en) | 1969-12-03 |
| DE1679830B2 (de) | 1973-04-26 |
| ES334996A1 (es) | 1968-03-16 |
| BE692028A (h) | 1967-06-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |