GB926566A - Extruding fluorocarbons - Google Patents
Extruding fluorocarbonsInfo
- Publication number
- GB926566A GB926566A GB29754/59A GB2975459A GB926566A GB 926566 A GB926566 A GB 926566A GB 29754/59 A GB29754/59 A GB 29754/59A GB 2975459 A GB2975459 A GB 2975459A GB 926566 A GB926566 A GB 926566A
- Authority
- GB
- United Kingdom
- Prior art keywords
- extruding
- fluorocarbons
- die
- sept
- polytetrafluoroethylene
- 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
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
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
-
- 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
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
- B29C55/10—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial
- B29C55/12—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial
- B29C55/14—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial successively
- B29C55/143—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial successively firstly parallel to the direction of feed and then transversely thereto
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
926,566. Extruding polytetrafluoroethylene. W. L. GORE & ASSOCIATES Inc. Sept. 1, 1959 [Sept. 9, 1958], No. 29754/59. Class 87(2). Polytetrafluoroethylene is extruded from a chamber 11 through a narrow section 12 and a tapered die 13. It is stated that the use of a die of this section produces a sheet which is stretched in two directions. A formula is given for designing the die.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US75991258A | 1958-09-09 | 1958-09-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB926566A true GB926566A (en) | 1963-05-22 |
Family
ID=25057435
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB29754/59A Expired GB926566A (en) | 1958-09-09 | 1959-09-01 | Extruding fluorocarbons |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE1404373A1 (en) |
GB (1) | GB926566A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2123316B2 (en) | 1970-05-21 | 1975-07-31 | W.L. Gore And Associates Inc., Newark, Del. (V.St.A.) | Porous material made from a tetrafluoroethylene polymer and method for its preparation |
DE2951423A1 (en) * | 1978-12-21 | 1980-07-10 | Du Pont | MOLDED PART FROM COALESIZED AROMATIC POLYIMIDE AND POLYAMIDE RESINS, AND METHOD AND DEVICE FOR THE PRODUCTION THEREOF |
GB2236504A (en) * | 1989-10-07 | 1991-04-10 | Liberato Mascia | Convergent-divergent dies to produce biaxial orientation in plastics products by extrusion or pultrusion |
EP0424674A2 (en) * | 1989-09-22 | 1991-05-02 | Daikin Industries, Limited | Extrusion molding die |
EP0878286A1 (en) * | 1997-05-16 | 1998-11-18 | Tetra Laval Holdings & Finance SA | Die for film extrusion |
CN115582989A (en) * | 2022-10-18 | 2023-01-10 | 南京肯特复合材料股份有限公司 | Method for improving surface smoothness of polytetrafluoroethylene extruded tube |
-
1959
- 1959-09-01 GB GB29754/59A patent/GB926566A/en not_active Expired
- 1959-09-02 DE DE19591404373 patent/DE1404373A1/en active Pending
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2123316B2 (en) | 1970-05-21 | 1975-07-31 | W.L. Gore And Associates Inc., Newark, Del. (V.St.A.) | Porous material made from a tetrafluoroethylene polymer and method for its preparation |
DE2951423A1 (en) * | 1978-12-21 | 1980-07-10 | Du Pont | MOLDED PART FROM COALESIZED AROMATIC POLYIMIDE AND POLYAMIDE RESINS, AND METHOD AND DEVICE FOR THE PRODUCTION THEREOF |
EP0424674A2 (en) * | 1989-09-22 | 1991-05-02 | Daikin Industries, Limited | Extrusion molding die |
EP0424674A3 (en) * | 1989-09-22 | 1991-06-12 | Daikin Industries, Limited | Extrusion molding die |
GB2236504A (en) * | 1989-10-07 | 1991-04-10 | Liberato Mascia | Convergent-divergent dies to produce biaxial orientation in plastics products by extrusion or pultrusion |
EP0878286A1 (en) * | 1997-05-16 | 1998-11-18 | Tetra Laval Holdings & Finance SA | Die for film extrusion |
CN115582989A (en) * | 2022-10-18 | 2023-01-10 | 南京肯特复合材料股份有限公司 | Method for improving surface smoothness of polytetrafluoroethylene extruded tube |
Also Published As
Publication number | Publication date |
---|---|
DE1404373A1 (en) | 1969-01-16 |
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