WO2008155758A3 - Oxygen protection for extruder raw material feed - Google Patents
Oxygen protection for extruder raw material feed Download PDFInfo
- Publication number
- WO2008155758A3 WO2008155758A3 PCT/IL2008/000800 IL2008000800W WO2008155758A3 WO 2008155758 A3 WO2008155758 A3 WO 2008155758A3 IL 2008000800 W IL2008000800 W IL 2008000800W WO 2008155758 A3 WO2008155758 A3 WO 2008155758A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- raw material
- material feed
- extruder
- oxygen protection
- extruder raw
- Prior art date
Links
Classifications
-
- 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
- B29C48/285—Feeding the extrusion material to the extruder
-
- 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
- B29C48/14—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration
- B29C48/143—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration at a location before or in the feed unit, e.g. influencing the material in the hopper
-
- 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
- B29C2791/00—Shaping characteristics in general
- B29C2791/004—Shaping under special conditions
- B29C2791/006—Using vacuum
-
- 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
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
-
- 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
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0019—Combinations of extrusion moulding with other shaping operations combined with shaping by flattening, folding or bending
-
- 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
- B29C48/03—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
- B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
-
- 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
- B29C48/285—Feeding the extrusion material to the extruder
- B29C48/286—Raw material dosing
-
- 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
- B29C48/285—Feeding the extrusion material to the extruder
- B29C48/295—Feeding the extrusion material to the extruder in gaseous form
-
- 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
- B29K2029/00—Use of polyvinylalcohols, polyvinylethers, polyvinylaldehydes, polyvinylketones or polyvinylketals or derivatives thereof as moulding material
- B29K2029/04—PVOH, i.e. polyvinyl alcohol
-
- 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
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0037—Other properties
- B29K2995/0059—Degradable
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
A system for extruding PVOH including an extruder and a PVOH raw material feed to the extruder, the PVOH raw material feed to the extruder being maintained generally oxygen free, such that oxygen is generally prevented from entering into the extruder.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US93671107P | 2007-06-20 | 2007-06-20 | |
US60/936,711 | 2007-06-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2008155758A2 WO2008155758A2 (en) | 2008-12-24 |
WO2008155758A3 true WO2008155758A3 (en) | 2010-02-25 |
Family
ID=40156767
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IL2008/000800 WO2008155758A2 (en) | 2007-06-20 | 2008-06-12 | Biodegradable barrier material |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2008155758A2 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4392804A (en) * | 1981-09-04 | 1983-07-12 | The Continental Group, Inc. | Solid stating |
US4402900A (en) * | 1982-11-01 | 1983-09-06 | E. I. Du Pont De Nemours & Co. | Dry spinning process with a gas flow amplifier |
US6248273B1 (en) * | 1997-02-13 | 2001-06-19 | E. I. Du Pont De Nemours And Company | Spinning cell and method for dry spinning spandex |
US20040242772A1 (en) * | 2001-08-18 | 2004-12-02 | Hans-Ullrich Huth | Partially cross-linked polyvinyl alcohol |
US6838496B1 (en) * | 1998-11-26 | 2005-01-04 | Buehler Ag | Method and device for processing a thermoplastic condensation polymer |
-
2008
- 2008-06-12 WO PCT/IL2008/000800 patent/WO2008155758A2/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4392804A (en) * | 1981-09-04 | 1983-07-12 | The Continental Group, Inc. | Solid stating |
US4402900A (en) * | 1982-11-01 | 1983-09-06 | E. I. Du Pont De Nemours & Co. | Dry spinning process with a gas flow amplifier |
US6248273B1 (en) * | 1997-02-13 | 2001-06-19 | E. I. Du Pont De Nemours And Company | Spinning cell and method for dry spinning spandex |
US6838496B1 (en) * | 1998-11-26 | 2005-01-04 | Buehler Ag | Method and device for processing a thermoplastic condensation polymer |
US20040242772A1 (en) * | 2001-08-18 | 2004-12-02 | Hans-Ullrich Huth | Partially cross-linked polyvinyl alcohol |
Also Published As
Publication number | Publication date |
---|---|
WO2008155758A2 (en) | 2008-12-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2011005492A8 (en) | Consumable materials having customized characteristics | |
WO2010003078A3 (en) | Melt granulation process | |
WO2010056940A3 (en) | Processing biomass | |
TWI347960B (en) | Process for the production of mouldings from a mixture of particulate natural materials and thermoplastic binder | |
EP2123701A4 (en) | Round fiber-reinforced plastic wire, process for producing the same, and fiber-reinforced sheet | |
EP2218683A4 (en) | Carbon microparticle produced from raw material lignin, and process for production thereof | |
GB2463210B (en) | Shredder auto feed system | |
EP2133200A4 (en) | Conductive-substance-adsorbing resin film, process for producing conductive-substance-adsorbing resin film, metal-layer-coated resin film made from the same, and process for producing metal-layer-coated resin film | |
EP2033705A4 (en) | Polymer separation membrane and process for producing the same | |
EP1995268A4 (en) | Resin dispersion, coating materials, laminates, and processes for production of the same | |
PL2307182T3 (en) | Screw elements for extruding plastic materials, use of said screw elements, and extrusion method | |
WO2009085453A3 (en) | Co-plasticizer systems | |
EP2211760A4 (en) | Polymeric drug delivery systems and thermoplastic extrusion processes for producing such systems | |
WO2009098280A3 (en) | System comprising at least one extruded or injection moulded part, method for the production thereof and use of the same | |
EP2476766A4 (en) | Antimicrobial raw material and method for manufacturig the same, and antimicrobial material | |
ZA200805531B (en) | Animal feed additives based on fermentation broth and production process thereof by granulation | |
HK1151200A1 (en) | Button made from biomass raw material and method for producing the same | |
EP2047898A4 (en) | Fluororesin polymer separation membrane and process for producing the same | |
EP1849573A4 (en) | Method and device for feeding molten resin, and method of manufacturing molded part by using the fed molten resin | |
EP2138531A4 (en) | Method for production of crosslinked polyvinyl acetal resin, and crosslinked polyvinyl acetal resin | |
WO2010001722A3 (en) | Chill roll assembly and process for producing a microporous membrane | |
WO2010069686A3 (en) | Shaping and dimensioning of plant material containing cellulose | |
IN2012DN00332A (en) | ||
WO2009051278A3 (en) | Extruder and process for preparing a mixture of polymer and diluent | |
WO2012035125A3 (en) | Process and apparatus for treating an extrudate surface |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 08763558 Country of ref document: EP Kind code of ref document: A2 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 08763558 Country of ref document: EP Kind code of ref document: A2 |