DE2844363C2 - Polyolefin-Formmasse - Google Patents
Polyolefin-FormmasseInfo
- Publication number
- DE2844363C2 DE2844363C2 DE2844363A DE2844363A DE2844363C2 DE 2844363 C2 DE2844363 C2 DE 2844363C2 DE 2844363 A DE2844363 A DE 2844363A DE 2844363 A DE2844363 A DE 2844363A DE 2844363 C2 DE2844363 C2 DE 2844363C2
- Authority
- DE
- Germany
- Prior art keywords
- film
- temperature
- shrinkage
- packaging
- properties
- 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
-
- 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
- B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
- B29C61/003—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor characterised by the choice of material
-
- 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
-
- 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
-
- 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
- B29C48/03—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
-
- 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
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C08L23/0853—Vinylacetate
-
- 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
-
- 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
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Description
(A) und (B) und (C);
hochdichtes Polyäthylen und/oder
kristallines Polybuten-1 sind, wobei
0,90 S B/(A + B) ä 0,05 und
0,05 S C/(A + B) S 2,0,
(A) und (B) und (C);
hochdichtes Polyäthylen und/oder
kristallines Polybuten-1 sind, wobei
(A)+ (B) + (C).
für die Kombination (A) + (B) + (C):
für die Kombination: (A + B + C):
für die Kombination: (A + B + C):
Die Größe des Tieftemperaturschrumpfes entspricht im Rahmen dieser Erfindung dem Temperaturwert des 20%igen Schrumpfes. Es wird angestrebt, daß der Temperaturwert für diesen Tieftemperaturschrumpf nicht mehr als 85° C, vorzugsweise nicht mehr als 75° C und besonders bevorzugt nicht mehr als 70° C beträgt. Obwohl dieser Wert in 2. Linie durch die Verstrecktemperatur und die Zusammensetzung des Materials bestimmt wird, stellt die Tatsache, daß dieser Wert in einem niedrigen Bereich liegt, ein charakteristisches Merkmal der erfindungsgemäß vorgesehenen KaItorientierung dar. Sofern dieser Wert groß ist, kann der geforderte Wärmeschrumpf nicht erreicht werden, solange die Folie nicht reichlich hohen Temperaturen für eine lange Zeitspanne beim tatsächlichen Gebrauch
30 Gew.-Teile Äthylen-a-Olefin-Copolymerisat (b|) mit den oben angegebenen Eigenschaften;
15 Gew.-Teile kristallines PP (ei)
Vergl. Beispiels 1: 1
(Gew.-Teile)
70
Claims (1)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12091777A JPS5455071A (en) | 1977-10-11 | 1977-10-11 | High cold-oriented film and its production |
JP13943177A JPS5472279A (en) | 1977-11-22 | 1977-11-22 | Highly cold drawn film and its production |
JP6387278A JPS54155271A (en) | 1978-05-30 | 1978-05-30 | Highly oriented film by cold drawing and its production |
JP6387078A JPS54155269A (en) | 1978-05-30 | 1978-05-30 | Highly oriented film by cold drawing and its production |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2844363A1 DE2844363A1 (de) | 1979-04-12 |
DE2844363C2 true DE2844363C2 (de) | 1983-07-07 |
Family
ID=27464370
Family Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2857642A Expired DE2857642C2 (de) | 1977-10-11 | 1978-10-11 | Kaltgereckte Folie und Verfahren zur Herstellung der Folie |
DE19782857641 Expired - Lifetime DE2857641C3 (de) | 1977-10-11 | 1978-10-11 | Material für eine reckbare Folie |
DE2844363A Expired DE2844363C2 (de) | 1977-10-11 | 1978-10-11 | Polyolefin-Formmasse |
DE2858781A Expired - Lifetime DE2858781C2 (de) | 1977-10-11 | 1978-10-11 |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2857642A Expired DE2857642C2 (de) | 1977-10-11 | 1978-10-11 | Kaltgereckte Folie und Verfahren zur Herstellung der Folie |
DE19782857641 Expired - Lifetime DE2857641C3 (de) | 1977-10-11 | 1978-10-11 | Material für eine reckbare Folie |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2858781A Expired - Lifetime DE2858781C2 (de) | 1977-10-11 | 1978-10-11 |
Country Status (4)
Country | Link |
---|---|
US (11) | US4277578A (de) |
DE (4) | DE2857642C2 (de) |
FR (1) | FR2525956B1 (de) |
GB (1) | GB2007685B (de) |
Families Citing this family (155)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2007685B (en) * | 1977-10-11 | 1982-05-12 | Asahi Dow Ltd | Composition for drawn film cold drawn film made of said composition and process for manufacture of said film |
JPS6040988B2 (ja) * | 1980-06-16 | 1985-09-13 | 旭化成株式会社 | 低温熱収縮性多層バリヤ−フイルム |
FR2493856B1 (fr) * | 1980-11-13 | 1986-03-21 | Naphtachimie Sa | Compositions de polypropylene a haute resistance au choc |
US4339507A (en) * | 1980-11-26 | 1982-07-13 | Union Carbide Corporation | Linear low density ethylene hydrocarbon copolymer containing composition for extrusion coating |
US4352849A (en) * | 1981-03-26 | 1982-10-05 | W. R. Grace & Co. | Coextruded, heat-shrinkable, multi-layer, polyolefin packaging film |
BR8207774A (pt) * | 1981-06-29 | 1983-05-31 | Abbott Lab | Formulacao termoplastica autoclavavel transparente para recipiente de liquido de medicamento |
US4440815A (en) * | 1981-06-29 | 1984-04-03 | Abbott Laboratories | Clear, autoclavable plastic formulation for medical liquid containers |
US4532189A (en) * | 1982-02-19 | 1985-07-30 | W. R. Grace & Co., Cryovac Div. | Linear polyethylene shrink films |
US4774277A (en) * | 1982-03-26 | 1988-09-27 | Exxon Research & Engineering Co. | Blends of polyolefin plastics with elastomeric plasticizers |
ZA832777B (en) | 1982-04-27 | 1984-11-28 | Bp Chem Int Ltd | Polyethylene blend and film |
US4430457A (en) * | 1982-05-10 | 1984-02-07 | Cities Service Company | Cling/stretch wrap compositions |
FR2529563B1 (fr) * | 1982-06-30 | 1986-01-24 | Charbonnages Ste Chimique | Compositions de polypropylene et de copolymeres ethylene/a-olefine et leur application a la fabrication de fils mono-orientes |
US4627993A (en) * | 1982-07-01 | 1986-12-09 | E. I. Du Pont De Nemours And Company | Thermoplastic elastomeric compositions based on compatible blends of an ethylene copolymer and vinyl or vinylidene halide polymer |
US4613533A (en) * | 1982-07-01 | 1986-09-23 | E. I. Du Pont De Nemours And Company | Thermoplastic elastomeric compositions based on compatible blends of an ethylene copolymer and vinyl or vinylidene halide polymer |
US4547413A (en) * | 1982-12-01 | 1985-10-15 | Union Carbide Corporation | Shrinkable film for poultry bags |
US4447480A (en) * | 1982-12-01 | 1984-05-08 | Union Carbide Corporation | Shrinkable film for poultry bags |
US4500681A (en) * | 1982-12-27 | 1985-02-19 | Exxon Research & Engineering Co. | Thermoplastic blend of polyolefin, isobutylene-backbone elastomer and ethylene copolymer |
IT1163372B (it) * | 1983-05-13 | 1987-04-08 | Grace W R & Co | Pellicole laminate ad elevate caratteristiche di silenziosita' e morbidezza, in particolare per contenitori o sacchetti di drenaggio ad uso medicale |
JPS6063240A (ja) * | 1983-09-19 | 1985-04-11 | Mitsui Petrochem Ind Ltd | 積層物 |
JPS60139428A (ja) * | 1983-12-27 | 1985-07-24 | Sumitomo Chem Co Ltd | ポリプロピレン延伸フイルム |
US4565847A (en) * | 1984-01-04 | 1986-01-21 | Mobil Oil Corporation | Blends of LLDPE, PP and EPDM or EPR for films of improved stiffness, tear and impact strength |
US4617241A (en) * | 1984-01-23 | 1986-10-14 | W. R. Grace & Co., Cryovac Div. | Linear polyethylene stretch/shrink films |
US4551380A (en) * | 1984-05-10 | 1985-11-05 | W. R. Grace & Co., Cryovac Div. | Oriented heat-sealable multilayer packaging film |
US4514465A (en) * | 1984-05-30 | 1985-04-30 | W. R. Grace & Co., Cryovac Div. | Storm window film comprising at least five layers |
US4639487A (en) * | 1984-07-11 | 1987-01-27 | Exxon Research & Engineering Co. | Heat shrinkable thermoplastic olefin composition |
US4665130A (en) * | 1984-08-31 | 1987-05-12 | Shell Oil Company | Packaging film and sheet capable of forming peelable seals with good optics |
US4666778A (en) * | 1984-08-31 | 1987-05-19 | Shell Oil Company | Packaging film and sheet capable of forming peelable seals with good optics |
EP0221908A4 (de) * | 1985-02-21 | 1987-08-03 | Res Polymers Internat | Thermoplastische gegenstände mit affinität für fahrzeuganstriche. |
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- 1978-10-06 US US05/949,253 patent/US4277578A/en not_active Expired - Lifetime
- 1978-10-11 DE DE2857642A patent/DE2857642C2/de not_active Expired
- 1978-10-11 DE DE19782857641 patent/DE2857641C3/de not_active Expired - Lifetime
- 1978-10-11 DE DE2844363A patent/DE2844363C2/de not_active Expired
- 1978-10-11 DE DE2858781A patent/DE2858781C2/de not_active Expired - Lifetime
-
1979
- 1979-07-25 US US06/060,617 patent/US4302557A/en not_active Expired - Lifetime
- 1979-07-25 US US06/060,638 patent/US4336350A/en not_active Expired - Lifetime
-
1980
- 1980-12-05 US US06/213,461 patent/US4499241A/en not_active Expired - Lifetime
- 1980-12-05 US US06/213,459 patent/US4379888A/en not_active Expired - Lifetime
- 1980-12-05 US US06/213,319 patent/US4542886A/en not_active Expired - Lifetime
-
1983
- 1983-01-12 US US06/457,365 patent/US4454303A/en not_active Expired - Lifetime
- 1983-04-12 FR FR8305926A patent/FR2525956B1/fr not_active Expired
-
1984
- 1984-10-29 US US06/665,492 patent/US4537935A/en not_active Expired - Lifetime
-
1986
- 1986-02-03 US US06/825,774 patent/US4701496A/en not_active Expired - Lifetime
-
1987
- 1987-10-19 US US07/109,659 patent/US4835218A/en not_active Ceased
-
1990
- 1990-07-25 US US07/557,113 patent/USRE33832E/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE2858781C2 (de) | 1991-10-17 |
US4277578A (en) | 1981-07-07 |
FR2525956B1 (fr) | 1987-07-24 |
USRE33832E (en) | 1992-02-25 |
DE2857642C2 (de) | 1983-07-07 |
US4537935A (en) | 1985-08-27 |
DE2844363A1 (de) | 1979-04-12 |
DE2857641C2 (de) | 1983-07-07 |
FR2525956A1 (fr) | 1983-11-04 |
GB2007685A (en) | 1979-05-23 |
US4454303A (en) | 1984-06-12 |
DE2857641C3 (de) | 1990-12-06 |
DE2857641A1 (de) | 1979-04-12 |
US4302557A (en) | 1981-11-24 |
US4379888A (en) | 1983-04-12 |
US4835218A (en) | 1989-05-30 |
US4499241A (en) | 1985-02-12 |
GB2007685B (en) | 1982-05-12 |
US4701496A (en) | 1987-10-20 |
US4336350A (en) | 1982-06-22 |
US4542886A (en) | 1985-09-24 |
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