JPS55123637A - Extruded sheet of polypropylene - Google Patents
Extruded sheet of polypropyleneInfo
- Publication number
- JPS55123637A JPS55123637A JP3089079A JP3089079A JPS55123637A JP S55123637 A JPS55123637 A JP S55123637A JP 3089079 A JP3089079 A JP 3089079A JP 3089079 A JP3089079 A JP 3089079A JP S55123637 A JPS55123637 A JP S55123637A
- Authority
- JP
- Japan
- Prior art keywords
- molecular weight
- component
- polypropylene
- intrinsic viscosity
- free
- 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.)
- Granted
Links
Abstract
PURPOSE: Title sheet that is made from polypropylene with high melt elasticity containing two components different in average molecualar weight, which is produced by two-step polymerization under different conditions in the same polymerization system, thus being free from surface roughening, and showing high-transparency and high thermal processability.
CONSTITUTION: For example, in the polymerization of propylene with Ziegler-Natta catalyst, the concentration of the molecular weight controller is changed in two steps to produce a propylene polymer consisting of 60W99.5wt% of low molecular wight component of less than 4.0dl/g intrinsic viscosity and 0.5W40wt% of high molecular weight component of twice or higher intrisic viscosity than the above component and having 2.0dl/g or higher intrinsic viscosity as a whole. The resulting polymer only or a copolymer thereof with other α-olefin is melt extruded. Since the dispersion of high molecular weight portions is good, the sheets resulting from extrusion are fish-eye free and shows good appearance.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3089079A JPS55123637A (en) | 1979-03-15 | 1979-03-15 | Extruded sheet of polypropylene |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3089079A JPS55123637A (en) | 1979-03-15 | 1979-03-15 | Extruded sheet of polypropylene |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55123637A true JPS55123637A (en) | 1980-09-24 |
JPH0112770B2 JPH0112770B2 (en) | 1989-03-02 |
Family
ID=12316311
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3089079A Granted JPS55123637A (en) | 1979-03-15 | 1979-03-15 | Extruded sheet of polypropylene |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55123637A (en) |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5638309A (en) * | 1979-09-07 | 1981-04-13 | Mitsui Toatsu Chem Inc | Propylene copolymer for forming film |
JPS57185336A (en) * | 1981-05-11 | 1982-11-15 | Mitsubishi Chem Ind Ltd | Polypropylene composition |
JPS57185304A (en) * | 1981-05-11 | 1982-11-15 | Mitsubishi Chem Ind Ltd | Preparation of propylene polymer |
JPS57187337A (en) * | 1981-05-13 | 1982-11-18 | Mitsubishi Chem Ind Ltd | Polypropylene composition |
JPS587439A (en) * | 1981-07-06 | 1983-01-17 | Mitsubishi Chem Ind Ltd | Polypropylene composition |
JPS5827731A (en) * | 1981-08-12 | 1983-02-18 | Mitsubishi Chem Ind Ltd | Polyolefin composition and its preparation |
US4950720A (en) * | 1988-04-29 | 1990-08-21 | Exxon Chemical Patents Inc. | Modified polypropylene, process for making and article made from the same |
US4970280A (en) * | 1987-04-01 | 1990-11-13 | Chisso Corporation | Continuous process for producing high molten viscoelastic polypropylene or ethylene-propylene copolymer |
US4981938A (en) * | 1987-02-04 | 1991-01-01 | Chisso Corporation | Highly crystalline polypropylene |
US5140062A (en) * | 1987-04-01 | 1992-08-18 | Chisso Corporation | Continuous process for producing high molten viscoelastic polypropylene of ethylene-propylene copolymer |
KR19980017267A (en) * | 1996-08-30 | 1998-06-05 | 백영배 | Method for producing polypropylene elastomer |
US6110986A (en) * | 1997-12-11 | 2000-08-29 | Sumitomo Chemical Company, Limited | Propylene-based polymer composition and foamed article thereof |
US6153710A (en) * | 1997-02-18 | 2000-11-28 | Chisso Corporation | Preactivated catalyst for olefin (CO)polymer, catalyst for olefin (CO)polymerization, olefin (CO)polymer composition, and process for producing the same |
US6231804B1 (en) | 1997-04-02 | 2001-05-15 | Chisso Corporation | Modified olefin (co)polymer composition, process for preparing the same, and modified olefin (co)polymer composition molding |
US6235845B1 (en) | 1997-08-07 | 2001-05-22 | Chisso Corporation | Olefin (co)polymer composition |
US6303696B1 (en) | 1997-04-11 | 2001-10-16 | Chisso Corporation | Propylene (co)polymer composition using metallocene catalyst |
US6313225B2 (en) | 1995-10-18 | 2001-11-06 | Chisso Corporation | Catalyst for olefin (co-)polymerization and method for producing the same |
US6437048B1 (en) | 1995-12-01 | 2002-08-20 | Chisso Corporation | Molded resin articles |
JP2008508372A (en) * | 2004-07-30 | 2008-03-21 | サウディ ベーシック インダストリーズ コーポレイション | High transparency propylene copolymer composition |
JP2008274031A (en) * | 2007-04-26 | 2008-11-13 | Sumitomo Chemical Co Ltd | Antistatic resin composition and thermoplastic resin multilayered sheet |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006057254A1 (en) * | 2004-11-25 | 2006-06-01 | Asahi Kasei Chemicals Corporation | Resin composition suitable for forming sheet |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5219788A (en) * | 1975-08-05 | 1977-02-15 | Stamicarbon | Method and apparatus for polymerizing alphaaalkene |
JPS5391954A (en) * | 1977-01-24 | 1978-08-12 | Tokuyama Soda Co Ltd | Method of extrusion molding of polypropylene |
JPS5439487A (en) * | 1977-09-05 | 1979-03-26 | Showa Denko Kk | Preparation of propylene copolymer |
-
1979
- 1979-03-15 JP JP3089079A patent/JPS55123637A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5219788A (en) * | 1975-08-05 | 1977-02-15 | Stamicarbon | Method and apparatus for polymerizing alphaaalkene |
JPS5391954A (en) * | 1977-01-24 | 1978-08-12 | Tokuyama Soda Co Ltd | Method of extrusion molding of polypropylene |
JPS5439487A (en) * | 1977-09-05 | 1979-03-26 | Showa Denko Kk | Preparation of propylene copolymer |
Cited By (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5638309A (en) * | 1979-09-07 | 1981-04-13 | Mitsui Toatsu Chem Inc | Propylene copolymer for forming film |
JPH0113487B2 (en) * | 1979-09-07 | 1989-03-07 | Mitsui Toatsu Chemicals | |
JPS57185336A (en) * | 1981-05-11 | 1982-11-15 | Mitsubishi Chem Ind Ltd | Polypropylene composition |
JPS57185304A (en) * | 1981-05-11 | 1982-11-15 | Mitsubishi Chem Ind Ltd | Preparation of propylene polymer |
JPH0348214B2 (en) * | 1981-05-11 | 1991-07-23 | Mitsubishi Chem Ind | |
JPS6354741B2 (en) * | 1981-05-13 | 1988-10-31 | Mitsubishi Chem Ind | |
JPS57187337A (en) * | 1981-05-13 | 1982-11-18 | Mitsubishi Chem Ind Ltd | Polypropylene composition |
JPS587439A (en) * | 1981-07-06 | 1983-01-17 | Mitsubishi Chem Ind Ltd | Polypropylene composition |
JPH0148939B2 (en) * | 1981-08-12 | 1989-10-23 | Mitsubishi Chem Ind | |
JPS5827731A (en) * | 1981-08-12 | 1983-02-18 | Mitsubishi Chem Ind Ltd | Polyolefin composition and its preparation |
US4981938A (en) * | 1987-02-04 | 1991-01-01 | Chisso Corporation | Highly crystalline polypropylene |
US4970280A (en) * | 1987-04-01 | 1990-11-13 | Chisso Corporation | Continuous process for producing high molten viscoelastic polypropylene or ethylene-propylene copolymer |
US5140062A (en) * | 1987-04-01 | 1992-08-18 | Chisso Corporation | Continuous process for producing high molten viscoelastic polypropylene of ethylene-propylene copolymer |
US4950720A (en) * | 1988-04-29 | 1990-08-21 | Exxon Chemical Patents Inc. | Modified polypropylene, process for making and article made from the same |
US6313225B2 (en) | 1995-10-18 | 2001-11-06 | Chisso Corporation | Catalyst for olefin (co-)polymerization and method for producing the same |
US6437048B1 (en) | 1995-12-01 | 2002-08-20 | Chisso Corporation | Molded resin articles |
KR19980017267A (en) * | 1996-08-30 | 1998-06-05 | 백영배 | Method for producing polypropylene elastomer |
US6153710A (en) * | 1997-02-18 | 2000-11-28 | Chisso Corporation | Preactivated catalyst for olefin (CO)polymer, catalyst for olefin (CO)polymerization, olefin (CO)polymer composition, and process for producing the same |
US6231804B1 (en) | 1997-04-02 | 2001-05-15 | Chisso Corporation | Modified olefin (co)polymer composition, process for preparing the same, and modified olefin (co)polymer composition molding |
US6303696B1 (en) | 1997-04-11 | 2001-10-16 | Chisso Corporation | Propylene (co)polymer composition using metallocene catalyst |
US6235845B1 (en) | 1997-08-07 | 2001-05-22 | Chisso Corporation | Olefin (co)polymer composition |
US6110986A (en) * | 1997-12-11 | 2000-08-29 | Sumitomo Chemical Company, Limited | Propylene-based polymer composition and foamed article thereof |
DE19856851B4 (en) * | 1997-12-11 | 2011-02-24 | Sumitomo Chemical Co. Ltd. | Polymer composition based on propylene and foam body thereof |
JP2008508372A (en) * | 2004-07-30 | 2008-03-21 | サウディ ベーシック インダストリーズ コーポレイション | High transparency propylene copolymer composition |
JP2008274031A (en) * | 2007-04-26 | 2008-11-13 | Sumitomo Chemical Co Ltd | Antistatic resin composition and thermoplastic resin multilayered sheet |
Also Published As
Publication number | Publication date |
---|---|
JPH0112770B2 (en) | 1989-03-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS55123637A (en) | Extruded sheet of polypropylene | |
US4563504A (en) | Propylene and ethylene/α-olefin copolymer combinations applicable to the manufacture of mono-oriented yarns | |
MY128257A (en) | Process for the manufacture of a composition comprising ethylene polymers | |
US3372049A (en) | Polyolefin film composition, film, and pressure-sensitive adhesive sheet material | |
HU913059D0 (en) | Films made of olefine polymers | |
EP0539604A4 (en) | Biodegradable resin composition and laminated structure made therefrom | |
EP0727446A4 (en) | Branched ethylene macromonomer and polymer produced therefrom | |
EP0667359A4 (en) | Olefin copolymers and process for producing the same. | |
CA2005537A1 (en) | Propylene polymer compositions having good transparency and improved impact resistance | |
WO1992014784A3 (en) | Heat sealable blend of very low density polyethylene or plastomer with polypropylene based polymers and heat sealable film and articles made thereof | |
EP0841371A3 (en) | Propylene polymer compositions | |
DE164493T1 (en) | MODIFIED POLYPROPYLENE FOR FILMS. | |
EP0942013A4 (en) | Polypropylene resin composition and use thereof | |
NO307709B1 (en) | Use of a polyethylene blend for making spunbonded textiles or weaving | |
EP0022376A3 (en) | Process for preparing a chemically blended composition of non-elastomeric ethylene resins, and shaped articles of such a composition | |
EP0321964A3 (en) | A process for extrusion | |
KR970027163A (en) | Film Extruded from Ethylene Copolymer Blend | |
AU567098B2 (en) | Compositions of ethylene polymers | |
KR910018420A (en) | Method for Molding Propylene Copolymer at Room Temperature | |
EP0171199A3 (en) | Crystalline polypropylene sheet | |
EP0490353A2 (en) | Impact polymer blend | |
CA2055356A1 (en) | Thermal stabilizers | |
CA2248654A1 (en) | Ethylene polymer composition for cable applications | |
EP0976785A4 (en) | Polypropylene composition and process for producing the same | |
KR960001000A (en) | Polyethylene Molding Composition |