Method of producing sheets or boards of polypropylene or its mixtures with polyethylene
Verfahren zur Herstellung von Folien oder Platten aus Polypropylen oder dessen Mischungen mit Polyäthylen durch Kalandrieren bei Temperaturen oberhalb des Kristallitschmelzpunktes, wobei von einem Polypropylen oder Polypropylen-Polyäthylengemisch mit einem Schmelzindex im Bereich von 0,4 bis 2,0 g/1...
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| creator | STAUTNER, HANS, GRAD HAGN, HERMANN, GRAD ALTENDORFER, FLORIAN |
| description | Verfahren zur Herstellung von Folien oder Platten aus Polypropylen oder dessen Mischungen mit Polyäthylen durch Kalandrieren bei Temperaturen oberhalb des Kristallitschmelzpunktes, wobei von einem Polypropylen oder Polypropylen-Polyäthylengemisch mit einem Schmelzindex im Bereich von 0,4 bis 2,0 g/10 min (230°C/21,6 N) ausgegangen wird und dieses Material so stabilisiert ist, daß der Schmelzindex während des Verfahrens nicht über 2,4 g/10 min (230°C/21,6 N) ansteigt. Bevorzugt wird das Material so stabilisiert, daß die Schmelzindexerhöhung während des Kalandrierens maximal 20 % des Ausgangsschmelzindex beträgt.
The process involves calendering at temperatures above the crystallite melting point of a polypropylene or polypropylene-polyethylene mixture having a melt flow index in the range from 0.4 to 2.0 g/10 min (230 DEG C/21.6 N), this material being stabilised in such a manner that the melt flow index does not increase to above 2.4 g/10 min (230 DEG C/21.6 N) during the process. The material is preferably stabilised in such a manner that the increase in melt flow index during calendering is a maximum of 20% of the initial melt flow index. |
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The process involves calendering at temperatures above the crystallite melting point of a polypropylene or polypropylene-polyethylene mixture having a melt flow index in the range from 0.4 to 2.0 g/10 min (230 DEG C/21.6 N), this material being stabilised in such a manner that the melt flow index does not increase to above 2.4 g/10 min (230 DEG C/21.6 N) during the process. The material is preferably stabilised in such a manner that the increase in melt flow index during calendering is a maximum of 20% of the initial melt flow index.</description><language>eng ; fre ; ger</language><subject>AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G ; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING ; CHEMISTRY ; COMPOSITIONS BASED THEREON ; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS ; GENERAL PROCESSES OF COMPOUNDING ; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS ; METALLURGY ; ORGANIC MACROMOLECULAR COMPOUNDS ; PERFORMING OPERATIONS ; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR ; SHAPING OR JOINING OF PLASTICS ; THEIR PREPARATION OR CHEMICAL WORKING-UP ; TRANSPORTING ; WORKING OF PLASTICS ; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL ; WORKING-UP</subject><creationdate>1981</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19811125&DB=EPODOC&CC=EP&NR=0040298A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19811125&DB=EPODOC&CC=EP&NR=0040298A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>STAUTNER, HANS, GRAD</creatorcontrib><creatorcontrib>HAGN, HERMANN, GRAD</creatorcontrib><creatorcontrib>ALTENDORFER, FLORIAN</creatorcontrib><title>Method of producing sheets or boards of polypropylene or its mixtures with polyethylene</title><description>Verfahren zur Herstellung von Folien oder Platten aus Polypropylen oder dessen Mischungen mit Polyäthylen durch Kalandrieren bei Temperaturen oberhalb des Kristallitschmelzpunktes, wobei von einem Polypropylen oder Polypropylen-Polyäthylengemisch mit einem Schmelzindex im Bereich von 0,4 bis 2,0 g/10 min (230°C/21,6 N) ausgegangen wird und dieses Material so stabilisiert ist, daß der Schmelzindex während des Verfahrens nicht über 2,4 g/10 min (230°C/21,6 N) ansteigt. Bevorzugt wird das Material so stabilisiert, daß die Schmelzindexerhöhung während des Kalandrierens maximal 20 % des Ausgangsschmelzindex beträgt.
The process involves calendering at temperatures above the crystallite melting point of a polypropylene or polypropylene-polyethylene mixture having a melt flow index in the range from 0.4 to 2.0 g/10 min (230 DEG C/21.6 N), this material being stabilised in such a manner that the melt flow index does not increase to above 2.4 g/10 min (230 DEG C/21.6 N) during the process. The material is preferably stabilised in such a manner that the increase in melt flow index during calendering is a maximum of 20% of the initial melt flow index.</description><subject>AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G</subject><subject>AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING</subject><subject>CHEMISTRY</subject><subject>COMPOSITIONS BASED THEREON</subject><subject>COMPOSITIONS OF MACROMOLECULAR COMPOUNDS</subject><subject>GENERAL PROCESSES OF COMPOUNDING</subject><subject>INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS</subject><subject>METALLURGY</subject><subject>ORGANIC MACROMOLECULAR COMPOUNDS</subject><subject>PERFORMING OPERATIONS</subject><subject>SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR</subject><subject>SHAPING OR JOINING OF PLASTICS</subject><subject>THEIR PREPARATION OR CHEMICAL WORKING-UP</subject><subject>TRANSPORTING</subject><subject>WORKING OF PLASTICS</subject><subject>WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL</subject><subject>WORKING-UP</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1981</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZAj3TS3JyE9RyE9TKCjKTylNzsxLVyjOSE0tKVbIL1JIyk8sSikGy-bnVAJVFFTmpOalgqQygSpyMytKSotSixXKM0sywEqApoFV8DCwpiXmFKfyQmluBgU31xBnD93Ugvz41OKCxGSgopJ41wADAxMDI0sLR0NjIpQAADhYOkQ</recordid><startdate>19811125</startdate><enddate>19811125</enddate><creator>STAUTNER, HANS, GRAD</creator><creator>HAGN, HERMANN, GRAD</creator><creator>ALTENDORFER, FLORIAN</creator><scope>EVB</scope></search><sort><creationdate>19811125</creationdate><title>Method of producing sheets or boards of polypropylene or its mixtures with polyethylene</title><author>STAUTNER, HANS, GRAD ; HAGN, HERMANN, GRAD ; ALTENDORFER, FLORIAN</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP0040298A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>1981</creationdate><topic>AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G</topic><topic>AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING</topic><topic>CHEMISTRY</topic><topic>COMPOSITIONS BASED THEREON</topic><topic>COMPOSITIONS OF MACROMOLECULAR COMPOUNDS</topic><topic>GENERAL PROCESSES OF COMPOUNDING</topic><topic>INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS</topic><topic>METALLURGY</topic><topic>ORGANIC MACROMOLECULAR COMPOUNDS</topic><topic>PERFORMING OPERATIONS</topic><topic>SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR</topic><topic>SHAPING OR JOINING OF PLASTICS</topic><topic>THEIR PREPARATION OR CHEMICAL WORKING-UP</topic><topic>TRANSPORTING</topic><topic>WORKING OF PLASTICS</topic><topic>WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL</topic><topic>WORKING-UP</topic><toplevel>online_resources</toplevel><creatorcontrib>STAUTNER, HANS, GRAD</creatorcontrib><creatorcontrib>HAGN, HERMANN, GRAD</creatorcontrib><creatorcontrib>ALTENDORFER, FLORIAN</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>STAUTNER, HANS, GRAD</au><au>HAGN, HERMANN, GRAD</au><au>ALTENDORFER, FLORIAN</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Method of producing sheets or boards of polypropylene or its mixtures with polyethylene</title><date>1981-11-25</date><risdate>1981</risdate><abstract>Verfahren zur Herstellung von Folien oder Platten aus Polypropylen oder dessen Mischungen mit Polyäthylen durch Kalandrieren bei Temperaturen oberhalb des Kristallitschmelzpunktes, wobei von einem Polypropylen oder Polypropylen-Polyäthylengemisch mit einem Schmelzindex im Bereich von 0,4 bis 2,0 g/10 min (230°C/21,6 N) ausgegangen wird und dieses Material so stabilisiert ist, daß der Schmelzindex während des Verfahrens nicht über 2,4 g/10 min (230°C/21,6 N) ansteigt. Bevorzugt wird das Material so stabilisiert, daß die Schmelzindexerhöhung während des Kalandrierens maximal 20 % des Ausgangsschmelzindex beträgt.
The process involves calendering at temperatures above the crystallite melting point of a polypropylene or polypropylene-polyethylene mixture having a melt flow index in the range from 0.4 to 2.0 g/10 min (230 DEG C/21.6 N), this material being stabilised in such a manner that the melt flow index does not increase to above 2.4 g/10 min (230 DEG C/21.6 N) during the process. The material is preferably stabilised in such a manner that the increase in melt flow index during calendering is a maximum of 20% of the initial melt flow index.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS GENERAL PROCESSES OF COMPOUNDING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP |
| title | Method of producing sheets or boards of polypropylene or its mixtures with polyethylene |
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