DE69221186D1 - Formverfahren zur Herstellung poröser Polytetrafluoroethylen-Gegenstände - Google Patents
Formverfahren zur Herstellung poröser Polytetrafluoroethylen-GegenständeInfo
- Publication number
- DE69221186D1 DE69221186D1 DE69221186T DE69221186T DE69221186D1 DE 69221186 D1 DE69221186 D1 DE 69221186D1 DE 69221186 T DE69221186 T DE 69221186T DE 69221186 T DE69221186 T DE 69221186T DE 69221186 D1 DE69221186 D1 DE 69221186D1
- Authority
- DE
- Germany
- Prior art keywords
- molding process
- porous polytetrafluoroethylene
- making porous
- polytetrafluoroethylene articles
- articles
- 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 - Fee Related
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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/24—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by surface fusion and bonding of particles to form voids, e.g. sintering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/20—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored
- B29C67/205—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored comprising surface fusion, and bonding of particles to form voids, e.g. sintering
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
- B29K2027/12—Use of polyvinylhalogenides or derivatives thereof as moulding material containing fluorine
- B29K2027/18—PTFE, i.e. polytetrafluorethene, e.g. ePTFE, i.e. expanded polytetrafluorethene
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S521/00—Synthetic resins or natural rubbers -- part of the class 520 series
- Y10S521/919—Sintered product
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7161291 | 1991-04-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69221186D1 true DE69221186D1 (de) | 1997-09-04 |
DE69221186T2 DE69221186T2 (de) | 1997-11-20 |
Family
ID=13465647
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69221186T Expired - Fee Related DE69221186T2 (de) | 1991-04-04 | 1992-04-02 | Formverfahren zur Herstellung poröser Polytetrafluoroethylen-Gegenstände |
Country Status (3)
Country | Link |
---|---|
US (1) | US5154866A (de) |
EP (1) | EP0507286B1 (de) |
DE (1) | DE69221186T2 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6428571B1 (en) | 1996-01-22 | 2002-08-06 | Scimed Life Systems, Inc. | Self-sealing PTFE vascular graft and manufacturing methods |
US5800512A (en) * | 1996-01-22 | 1998-09-01 | Meadox Medicals, Inc. | PTFE vascular graft |
GB2319028B (en) * | 1996-03-30 | 2000-03-15 | Gore & Ass | Granular-type polytetrafluoroethylene dispersions and fused articles prepared therefrom |
ES2144331B1 (es) * | 1996-05-14 | 2000-12-16 | Sipem S A | Procedimiento de obtencion de moldes para la fabricacion de quesos y molde obtenido en dicho procedimiento. |
GB2337991A (en) * | 1998-06-04 | 1999-12-08 | Gore & Ass | Fine powder type PTFE material |
AU2003211193A1 (en) * | 2002-02-14 | 2003-09-04 | Hitachi Maxell, Ltd. | Liquid fuel cell |
JP6471545B2 (ja) * | 2015-03-10 | 2019-02-20 | 日立金属株式会社 | 架橋フッ素樹脂粉体の製造方法 |
CN113105659A (zh) * | 2021-04-14 | 2021-07-13 | 深圳市富程威科技有限公司 | 一种聚四氟乙烯微孔薄膜及其制备方法和应用 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2400091A (en) * | 1944-09-20 | 1946-05-14 | Du Pont | Molding process |
FR1220069A (fr) * | 1958-12-29 | 1960-05-23 | Electro Chimie Soc D | Procédé de préparation d'articles poreux à base de polytétrafluoréthylène |
FR1305344A (fr) * | 1960-09-22 | 1962-10-05 | Procédé pour la fabrication de corps poreux à base de polytétrafluoréthylène et produits en résultant, notamment dans le domaine de la filtration | |
US4576608A (en) * | 1980-11-06 | 1986-03-18 | Homsy Charles A | Porous body-implantable polytetrafluoroethylene |
JPS59109534A (ja) * | 1982-12-14 | 1984-06-25 | Nitto Electric Ind Co Ltd | ポリテトラフルオロエチレン多孔質体 |
US4650815A (en) * | 1984-10-11 | 1987-03-17 | Daikin Industries, Ltd | Foamed articles of fluorocarbon resins |
US5019311A (en) * | 1989-02-23 | 1991-05-28 | Koslow Technologies Corporation | Process for the production of materials characterized by a continuous web matrix or force point bonding |
US5098625A (en) * | 1989-03-14 | 1992-03-24 | Yeu Ming Tai Chemical Industrial Co., Ltd. | Process for forming an expanded porous tetrafluoroethylene polymer |
US5104400A (en) * | 1989-05-26 | 1992-04-14 | Impra, Inc. | Blood vessel patch |
-
1992
- 1992-04-02 DE DE69221186T patent/DE69221186T2/de not_active Expired - Fee Related
- 1992-04-02 US US07/862,180 patent/US5154866A/en not_active Expired - Lifetime
- 1992-04-02 EP EP92105642A patent/EP0507286B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69221186T2 (de) | 1997-11-20 |
EP0507286B1 (de) | 1997-07-30 |
US5154866A (en) | 1992-10-13 |
EP0507286A1 (de) | 1992-10-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |