FR2441471A1 - Procede de preparation de granules de polyimides extrudables et produits ainsi obtenus - Google Patents
Procede de preparation de granules de polyimides extrudables et produits ainsi obtenusInfo
- Publication number
- FR2441471A1 FR2441471A1 FR7927747A FR7927747A FR2441471A1 FR 2441471 A1 FR2441471 A1 FR 2441471A1 FR 7927747 A FR7927747 A FR 7927747A FR 7927747 A FR7927747 A FR 7927747A FR 2441471 A1 FR2441471 A1 FR 2441471A1
- Authority
- FR
- France
- Prior art keywords
- granules
- extrudable
- products
- preparation
- polyimide
- 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.)
- Pending
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/02—Conditioning or physical treatment of the material to be shaped by heating
- B29B13/021—Heat treatment of powders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
-
- 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
- C08J3/16—Powdering or granulating by coagulating dispersions
-
- 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
- C08J2379/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups C08J2361/00 - C08J2377/00
- C08J2379/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C08J2379/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
Landscapes
- Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
L'INVENTION CONCERNE UN PROCEDE DE PREPARATION DE GRANULES DE POLYIMIDES EXTRUDABLES. CE PROCEDE COMPREND LES ETAPES CONSISTANT A CHAUFFER ET AGGLOMERER UNE POUDRE CONTENANT DES PARTICULES DE POLYIMIDES POUR FORMER UNE MASSE POREUSE PARTIELLEMENT DENSIFIEE QUI EST ENSUITE FRAGMENTEE POUR FORMER DES GRANULES DE CES POLYMERES. L'INVENTION EST UTILISEE POUR FORMER DES GRANULES POUVANT ETRE EXTRUDES AU MOYEN D'UN PISTON AFIN DE FORMER DES ARTICLES UNIFORMES D'UNE HAUTE RESISTANCE.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/961,095 US4302413A (en) | 1978-11-16 | 1978-11-16 | Process for preparing extrudable polyimide granules |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2441471A1 true FR2441471A1 (fr) | 1980-06-13 |
Family
ID=25504049
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7927747A Pending FR2441471A1 (fr) | 1978-11-16 | 1979-11-09 | Procede de preparation de granules de polyimides extrudables et produits ainsi obtenus |
Country Status (6)
Country | Link |
---|---|
US (1) | US4302413A (fr) |
JP (1) | JPS5567407A (fr) |
BE (1) | BE880013A (fr) |
DE (1) | DE2946374A1 (fr) |
FR (1) | FR2441471A1 (fr) |
GB (1) | GB2036046A (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0137111A1 (fr) * | 1983-06-16 | 1985-04-17 | Sumitomo Chemical Company, Limited | Procédé de préparation d'objets moulés en résine polyamide-imide aromatique |
EP0391633A2 (fr) * | 1989-04-05 | 1990-10-10 | MITSUI TOATSU CHEMICALS, Inc. | Procédé d'extension de polyimide et granulés de polyimide utilisés à cet effet |
EP0456246A2 (fr) * | 1990-05-10 | 1991-11-13 | Boehringer Ingelheim Kg | Procédé de fabrication pour polymères exemptés de solvants ou monomères résiduelles, pour son utilisation dans des procédés d'injection, extrusion ou filage |
US5206339A (en) * | 1989-04-05 | 1993-04-27 | Mitsui Toatsu Chemicals, Inc. | Extrusion process of polyimide and polyimide pellet used for the process |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4621015A (en) * | 1983-11-07 | 1986-11-04 | Long John V | Low density, modified polyimide foams and methods of making same |
US4581264A (en) * | 1984-03-30 | 1986-04-08 | Standard Oil Company (Indiana) | Process for extruding an article from an amide-imide copolymer and the resultant article |
DE3421978A1 (de) * | 1984-06-14 | 1985-12-19 | Basf Ag, 6700 Ludwigshafen | Verfahren zur herstellung von presskoerpern aus kleinteiligen thermoplastischen polymerisaten |
FR2571046B1 (fr) * | 1984-10-03 | 1987-10-16 | Roquette Freres | Procede de preparation de mannitol granulaire directement compressible |
JPS6225030A (ja) * | 1985-07-25 | 1987-02-03 | Ube Ind Ltd | ポリイミド粉末の連続成形法 |
US4861537A (en) * | 1987-09-03 | 1989-08-29 | Hoechst Celanese Corporation | Process of making a sintered polybenzimidazole article |
US5432001A (en) * | 1990-01-30 | 1995-07-11 | Trw Inc. | Concentrated prepolymer composition useful for forming polyimide articles |
US5338827A (en) * | 1990-01-30 | 1994-08-16 | Trw Inc. | Polyimide resins useful at high temperatures |
US5162492A (en) * | 1990-10-11 | 1992-11-10 | E. I. Du Pont De Nemours And Company | Hydrolytically and oxidatively stable polyimides |
US5290497A (en) * | 1991-11-08 | 1994-03-01 | Chisso Corporation | Process for producing molded articles of polyimide precursor |
US5316711A (en) * | 1993-04-20 | 1994-05-31 | Throne James L | Process for producing articles from polymers containing aromatic imide linkages |
JPH08132534A (ja) * | 1994-11-09 | 1996-05-28 | Kanegafuchi Chem Ind Co Ltd | 芳香族ポリイミド樹脂の成形方法 |
US6759004B1 (en) * | 1999-07-20 | 2004-07-06 | Southco, Inc. | Process for forming microporous metal parts |
ATE320656T1 (de) * | 2000-06-30 | 2006-04-15 | 3M Innovative Properties Co | Für hohe frequenzen ausgelegtes elektronisches teil, das ein isoliermaterial umfasst, und verfahren zu dessen herstellung |
US6887525B2 (en) | 2000-06-30 | 2005-05-03 | 3M Innovative Properties Company | Insulation material for use in high-frequency electronic parts |
KR100901730B1 (ko) * | 2001-05-24 | 2009-06-09 | 도레이 카부시키가이샤 | 정제, 그 제조방법 및 그것으로부터 얻어지는 성형품 |
JP2007262160A (ja) * | 2006-03-27 | 2007-10-11 | Osaka Prefecture | ポリイミダゾール又はその前駆体の微粒子及びその製造方法 |
ITPS20090011A1 (it) * | 2009-05-19 | 2010-11-19 | Max Canti | Processo per conglomerare con matrici resinose materiali coibenti in risparmio di energia. elementi con esso ottenuti. |
CN105835251B (zh) * | 2016-03-30 | 2018-12-07 | 济南赛诺富隆新材料有限公司 | 一种聚四氟乙烯颗粒的制备方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR964182A (fr) * | 1950-08-08 | |||
GB683169A (en) * | 1949-09-30 | 1952-11-26 | British Industrial Plastics | The manufacture of thermosetting aminoplastic molding compositions in granular form |
CH414150A (de) * | 1962-01-26 | 1966-05-31 | Du Pont | Verfahren zur Herstellung geformter Polyimidgegenstände |
FR2140223A1 (fr) * | 1971-06-03 | 1973-01-12 | Union Carbide Corp | |
FR2200304A1 (fr) * | 1972-09-20 | 1974-04-19 | Sir Soc Italiana Resine Spa |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3259676A (en) * | 1963-01-08 | 1966-07-05 | Fmc Corp | Method of making formed products of cellulose crystallite aggregates |
US3422061A (en) * | 1963-10-18 | 1969-01-14 | Du Pont | Coalesceable polyimide powders from a polycarbocylic aromatic dianhydride and phenylene diamine |
US3413394A (en) * | 1965-02-16 | 1968-11-26 | Du Pont | Process of preparing shaped polymeric articles |
FR1548309A (fr) * | 1967-06-05 | 1968-12-06 | ||
FR1548308A (fr) * | 1967-06-05 | 1968-12-06 | ||
FR1537135A (fr) * | 1967-07-12 | 1968-08-23 | Rhone Poulenc Sa | Nouveaux polyimides réticulés |
US3573132A (en) * | 1967-10-30 | 1971-03-30 | Rhone Poulenc Sa | Process for the preparation of polyimides |
GB1220182A (en) * | 1968-02-27 | 1971-01-20 | Ici Ltd | Reinforced thermoplastic composite materials |
US3573260A (en) * | 1968-08-26 | 1971-03-30 | Standard Oil Co | Process of preparing solid molding powder from polytrimellitate amideimides |
US3714320A (en) * | 1968-09-30 | 1973-01-30 | Shell Oil Co | Cold extrusion process |
US3663674A (en) * | 1969-07-01 | 1972-05-16 | Gulf Research Development Co | Densification of poly-alpha-olefins |
GB1296383A (fr) * | 1969-07-31 | 1972-11-15 | ||
US3708459A (en) * | 1970-06-24 | 1973-01-02 | Trw Inc | Molding power prepolymers |
US3846522A (en) * | 1970-09-10 | 1974-11-05 | Elpex Inc | Forming of thermoplastic polymers |
US3822177A (en) * | 1971-06-01 | 1974-07-02 | Union Carbide Corp | Thermoplastic pellets and method of producing shaped articles therefrom |
US3772418A (en) * | 1971-10-29 | 1973-11-13 | Nasa | Molding process for imidazopyrrolone polymers |
US4016140A (en) * | 1972-03-30 | 1977-04-05 | Standard Oil Company | Amide-imide copolymer moldings and method of preparation |
JPS4926520A (fr) * | 1972-07-11 | 1974-03-09 | ||
US4122135A (en) * | 1972-09-20 | 1978-10-24 | Societa' Italiana Resine S.I.R. S.P.A. | Sintered granulate produced from acrylonitrile-butadiene-styrene copolymer powders |
US4014965A (en) * | 1972-11-24 | 1977-03-29 | The Dow Chemical Company | Process for scrapless forming of plastic articles |
US3988401A (en) * | 1973-08-27 | 1976-10-26 | Union Carbide Corporation | Compression molding of thermoplastic material |
US4161502A (en) * | 1975-01-30 | 1979-07-17 | The Dow Chemical Company | Process for forming plastic articles |
GB1562569A (en) * | 1975-12-04 | 1980-03-12 | United Glass Ltd | Materials for handling hot glassware and other hot articles |
US4056594A (en) * | 1975-12-15 | 1977-11-01 | Phillips Petroleum Company | Method of producing a flexible extrudate of a mixture of poly(phenylene sulfide) and filler |
-
1978
- 1978-11-16 US US05/961,095 patent/US4302413A/en not_active Expired - Lifetime
-
1979
- 1979-10-26 JP JP13920279A patent/JPS5567407A/ja active Granted
- 1979-11-09 FR FR7927747A patent/FR2441471A1/fr active Pending
- 1979-11-09 GB GB7938912A patent/GB2036046A/en not_active Withdrawn
- 1979-11-13 BE BE6/47002A patent/BE880013A/fr unknown
- 1979-11-16 DE DE19792946374 patent/DE2946374A1/de not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR964182A (fr) * | 1950-08-08 | |||
GB683169A (en) * | 1949-09-30 | 1952-11-26 | British Industrial Plastics | The manufacture of thermosetting aminoplastic molding compositions in granular form |
CH414150A (de) * | 1962-01-26 | 1966-05-31 | Du Pont | Verfahren zur Herstellung geformter Polyimidgegenstände |
FR2140223A1 (fr) * | 1971-06-03 | 1973-01-12 | Union Carbide Corp | |
FR2200304A1 (fr) * | 1972-09-20 | 1974-04-19 | Sir Soc Italiana Resine Spa |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0137111A1 (fr) * | 1983-06-16 | 1985-04-17 | Sumitomo Chemical Company, Limited | Procédé de préparation d'objets moulés en résine polyamide-imide aromatique |
EP0391633A2 (fr) * | 1989-04-05 | 1990-10-10 | MITSUI TOATSU CHEMICALS, Inc. | Procédé d'extension de polyimide et granulés de polyimide utilisés à cet effet |
EP0391633A3 (fr) * | 1989-04-05 | 1991-07-24 | MITSUI TOATSU CHEMICALS, Inc. | Procédé d'extension de polyimide et granulés de polyimide utilisés à cet effet |
US5206339A (en) * | 1989-04-05 | 1993-04-27 | Mitsui Toatsu Chemicals, Inc. | Extrusion process of polyimide and polyimide pellet used for the process |
EP0456246A2 (fr) * | 1990-05-10 | 1991-11-13 | Boehringer Ingelheim Kg | Procédé de fabrication pour polymères exemptés de solvants ou monomères résiduelles, pour son utilisation dans des procédés d'injection, extrusion ou filage |
EP0456246A3 (en) * | 1990-05-10 | 1992-07-08 | Boehringer Ingelheim Kg | Process for manufacturing solventless/residual monomerless polymers, to be used in processes such as injection, extrusion or meltspinning |
Also Published As
Publication number | Publication date |
---|---|
BE880013A (fr) | 1980-03-03 |
GB2036046A (en) | 1980-06-25 |
JPS6223642B2 (fr) | 1987-05-25 |
DE2946374A1 (de) | 1980-05-29 |
JPS5567407A (en) | 1980-05-21 |
US4302413A (en) | 1981-11-24 |
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