MX168272B - Articulos de polipropiletano resistentes a las radiaciones, y metodo para prepararlos - Google Patents
Articulos de polipropiletano resistentes a las radiaciones, y metodo para prepararlosInfo
- Publication number
- MX168272B MX168272B MX006417A MX641787A MX168272B MX 168272 B MX168272 B MX 168272B MX 006417 A MX006417 A MX 006417A MX 641787 A MX641787 A MX 641787A MX 168272 B MX168272 B MX 168272B
- Authority
- MX
- Mexico
- Prior art keywords
- polypropylene
- articles
- preparing
- polypropylethane
- radiation resistant
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 2
- 230000005855 radiation Effects 0.000 title abstract 2
- 239000004743 Polypropylene Substances 0.000 abstract 5
- -1 polypropylene Polymers 0.000 abstract 5
- 229920001155 polypropylene Polymers 0.000 abstract 5
- 238000001816 cooling Methods 0.000 abstract 1
- 238000000605 extraction Methods 0.000 abstract 1
- 229920006379 extruded polypropylene Polymers 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
- A61L2/08—Radiation
-
- 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
- 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
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
-
- 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
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
- B29C48/914—Cooling of flat articles, e.g. using specially adapted supporting means cooling drums
-
- 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
- B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
- B29C71/04—After-treatment of articles without altering their shape; Apparatus therefor by wave energy or particle radiation, e.g. for curing or vulcanising preformed articles
-
- 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
-
- 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
- B29C48/05—Filamentary, e.g. strands
-
- 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
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/10—Polymers of propylene
- B29K2023/12—PP, i.e. polypropylene
-
- 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
- B29K2995/0039—Amorphous
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Epidemiology (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Veterinary Medicine (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
La presente invención se refiere a un método para preparar artículos de polipropileno irradiados, caracterizado porque comprende: a) extruir el polipropileno, b)enfriar el polipropileno extruído inmdiatamente después de la extrasión para proporcionar polipropileno mesomórfico no cristalino; y c)irridar el polipropileno mesomórfico no cristalino con una dosificación de radiación inoizante que pdria degradar al polipropileno cristalino.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US86106886A | 1986-05-08 | 1986-05-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
MX168272B true MX168272B (es) | 1993-05-14 |
Family
ID=25334790
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX006417A MX168272B (es) | 1986-05-08 | 1987-05-08 | Articulos de polipropiletano resistentes a las radiaciones, y metodo para prepararlos |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0248545B1 (es) |
JP (1) | JPH07121991B2 (es) |
KR (1) | KR940008073B1 (es) |
AR (1) | AR243795A1 (es) |
AU (1) | AU597975B2 (es) |
BR (1) | BR8702336A (es) |
CA (1) | CA1311719C (es) |
DE (1) | DE3783514T2 (es) |
ES (1) | ES2036573T3 (es) |
MX (1) | MX168272B (es) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5258419A (en) * | 1989-06-26 | 1993-11-02 | Minnesota Mining And Manufacturing Company | Methods of preparing radiation resistant heat sealable polymer blends |
US5140073A (en) * | 1989-06-26 | 1992-08-18 | Minnesota Mining And Manufacturing Company | Radiation resistant heat sealable polymer blends of compatible polymers and methods of preparing same |
US5209984A (en) * | 1989-06-26 | 1993-05-11 | Minnesota Mining And Manufacturing Company | Films of radiation resistant heat sealable polymer blends having a surface adhesion layer grafted thereto |
JP2894823B2 (ja) * | 1989-12-06 | 1999-05-24 | 三井化学株式会社 | 耐放射線ポリプロピレン樹脂組成物及び耐放射線成形物の製造方法 |
WO1993011938A1 (en) * | 1991-12-18 | 1993-06-24 | Minnesota Mining And Manufacturing Company | Multilayered barrier structures |
US5496295A (en) * | 1991-12-18 | 1996-03-05 | Minnesota Mining And Manufacturing Company | Multilayered barrier structures |
FI95153C (fi) * | 1994-02-11 | 1995-12-27 | Suominen Oy J W | Menetelmä gamma-säteillytystä kestävän polypropeenikuidun valmistamiseksi säteilysteriloitavaa kuitukangasta varten sekä tähän liittyvänä mainitun mekaanisesti tai hydraulisesti sidottavan kuitukankaan valmistusmenetelmä |
DE19621465A1 (de) * | 1996-05-29 | 1997-12-04 | Danubia Petrochem Deutschland | Verwendung von Polypropylenen zur Verbesserung der Stabilität gegenüber ionisierender Strahlung |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54160475A (en) * | 1978-06-09 | 1979-12-19 | Sumitomo Bakelite Co Ltd | Production of polypropylene sheet |
NZ208423A (en) * | 1983-10-26 | 1987-05-29 | Becton Dickinson Co | Sterilised, radiation-stabilised semi-crystalline polymer articles |
-
1987
- 1987-05-07 CA CA000536576A patent/CA1311719C/en not_active Expired - Fee Related
- 1987-05-07 KR KR1019870004447A patent/KR940008073B1/ko not_active IP Right Cessation
- 1987-05-07 JP JP62111661A patent/JPH07121991B2/ja not_active Expired - Lifetime
- 1987-05-07 ES ES198787304084T patent/ES2036573T3/es not_active Expired - Lifetime
- 1987-05-07 BR BR8702336A patent/BR8702336A/pt not_active IP Right Cessation
- 1987-05-07 EP EP87304084A patent/EP0248545B1/en not_active Expired - Lifetime
- 1987-05-07 DE DE8787304084T patent/DE3783514T2/de not_active Expired - Fee Related
- 1987-05-08 MX MX006417A patent/MX168272B/es unknown
- 1987-05-08 AU AU72627/87A patent/AU597975B2/en not_active Ceased
- 1987-05-08 AR AR87307514A patent/AR243795A1/es active
Also Published As
Publication number | Publication date |
---|---|
EP0248545A3 (en) | 1988-08-10 |
BR8702336A (pt) | 1988-02-17 |
DE3783514T2 (de) | 1993-08-05 |
KR940008073B1 (ko) | 1994-09-01 |
DE3783514D1 (de) | 1993-02-25 |
CA1311719C (en) | 1992-12-22 |
EP0248545A2 (en) | 1987-12-09 |
EP0248545B1 (en) | 1993-01-13 |
AR243795A1 (es) | 1993-09-30 |
JPH07121991B2 (ja) | 1995-12-25 |
AU7262787A (en) | 1987-11-12 |
ES2036573T3 (es) | 1993-06-01 |
AU597975B2 (en) | 1990-06-14 |
JPS62273232A (ja) | 1987-11-27 |
KR870011283A (ko) | 1987-12-22 |
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