POLYPROPYLENE LAMINATE FILM
A polypropylene laminate film comprises a crystalline polypropylene layer having laminated on at least one surface thereof a copolymer which is a random copolymer of propylene, ethylene, and an alpha -olefin having at least 4 carbon atoms. The copolymer is obtained by vapor-phase polymerization usin...
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| creator | KIMURA, JUNICHI SATOH, MAKOTO WAKAMATSU, KAZUKI USUI, MASAHITO |
| description | A polypropylene laminate film comprises a crystalline polypropylene layer having laminated on at least one surface thereof a copolymer which is a random copolymer of propylene, ethylene, and an alpha -olefin having at least 4 carbon atoms. The copolymer is obtained by vapor-phase polymerization using a catalyst system comprising (A) a solid catalyst component containing magnesium, titanium and a halogen, (B) an organoaluminum compound, and (C) an electron donative compound in substantially the absence of a liquid medium. The copolymer satisfies the following requirements: (1) ethylene content of 3.0 - 7.0 wt%, (2) alpha -olefin content of 2.0 - 6.0 wt%, (3) ethylene alpha -olefin ratio of at least 1.0, (4) melt flow rate of 10 g/10 minutes or less, (5) ratio of weight average molecular weight: number average molecular weight ratio of 4.5 or less, (6) mp of 135 DEG C or less, and (7) n-hexane-soluble components less than 5.5 wt% The film has excellent low-temperature heat-sealing and hot tack properties, good transparency, and good blocking and solvent resistance. |
| format | Patent |
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The copolymer is obtained by vapor-phase polymerization using a catalyst system comprising (A) a solid catalyst component containing magnesium, titanium and a halogen, (B) an organoaluminum compound, and (C) an electron donative compound in substantially the absence of a liquid medium. The copolymer satisfies the following requirements: (1) ethylene content of 3.0 - 7.0 wt%, (2) alpha -olefin content of 2.0 - 6.0 wt%, (3) ethylene alpha -olefin ratio of at least 1.0, (4) melt flow rate of 10 g/10 minutes or less, (5) ratio of weight average molecular weight: number average molecular weight ratio of 4.5 or less, (6) mp of 135 DEG C or less, and (7) n-hexane-soluble components less than 5.5 wt% The film has excellent low-temperature heat-sealing and hot tack properties, good transparency, and good blocking and solvent resistance.</description><edition>6</edition><language>eng</language><subject>CHEMISTRY ; COMPOSITIONS BASED THEREON ; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS ; LAYERED PRODUCTS ; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM ; METALLURGY ; ORGANIC MACROMOLECULAR COMPOUNDS ; PERFORMING OPERATIONS ; THEIR PREPARATION OR CHEMICAL WORKING-UP ; TRANSPORTING</subject><creationdate>1995</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=19950125&DB=EPODOC&CC=EP&NR=0633133A3$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19950125&DB=EPODOC&CC=EP&NR=0633133A3$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KIMURA, JUNICHI</creatorcontrib><creatorcontrib>SATOH, MAKOTO</creatorcontrib><creatorcontrib>WAKAMATSU, KAZUKI</creatorcontrib><creatorcontrib>USUI, MASAHITO</creatorcontrib><title>POLYPROPYLENE LAMINATE FILM</title><description>A polypropylene laminate film comprises a crystalline polypropylene layer having laminated on at least one surface thereof a copolymer which is a random copolymer of propylene, ethylene, and an alpha -olefin having at least 4 carbon atoms. 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The copolymer satisfies the following requirements: (1) ethylene content of 3.0 - 7.0 wt%, (2) alpha -olefin content of 2.0 - 6.0 wt%, (3) ethylene alpha -olefin ratio of at least 1.0, (4) melt flow rate of 10 g/10 minutes or less, (5) ratio of weight average molecular weight: number average molecular weight ratio of 4.5 or less, (6) mp of 135 DEG C or less, and (7) n-hexane-soluble components less than 5.5 wt% The film has excellent low-temperature heat-sealing and hot tack properties, good transparency, and good blocking and solvent resistance.</description><subject>CHEMISTRY</subject><subject>COMPOSITIONS BASED THEREON</subject><subject>COMPOSITIONS OF MACROMOLECULAR COMPOUNDS</subject><subject>LAYERED PRODUCTS</subject><subject>LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM</subject><subject>METALLURGY</subject><subject>ORGANIC MACROMOLECULAR COMPOUNDS</subject><subject>PERFORMING OPERATIONS</subject><subject>THEIR PREPARATION OR CHEMICAL WORKING-UP</subject><subject>TRANSPORTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1995</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJAO8PeJDAjyD4j0cfVzVfBx9PX0cwxxVXDz9PHlYWBNS8wpTuWF0twMCm6uIc4euqkF-fGpxQWJyal5qSXxrgEGZsbGhsbGjsbGRCgBACtjIEk</recordid><startdate>19950125</startdate><enddate>19950125</enddate><creator>KIMURA, JUNICHI</creator><creator>SATOH, MAKOTO</creator><creator>WAKAMATSU, KAZUKI</creator><creator>USUI, MASAHITO</creator><scope>EVB</scope></search><sort><creationdate>19950125</creationdate><title>POLYPROPYLENE LAMINATE FILM</title><author>KIMURA, JUNICHI ; SATOH, MAKOTO ; WAKAMATSU, KAZUKI ; USUI, MASAHITO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP0633133A33</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1995</creationdate><topic>CHEMISTRY</topic><topic>COMPOSITIONS BASED THEREON</topic><topic>COMPOSITIONS OF MACROMOLECULAR COMPOUNDS</topic><topic>LAYERED PRODUCTS</topic><topic>LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM</topic><topic>METALLURGY</topic><topic>ORGANIC MACROMOLECULAR COMPOUNDS</topic><topic>PERFORMING OPERATIONS</topic><topic>THEIR PREPARATION OR CHEMICAL WORKING-UP</topic><topic>TRANSPORTING</topic><toplevel>online_resources</toplevel><creatorcontrib>KIMURA, JUNICHI</creatorcontrib><creatorcontrib>SATOH, MAKOTO</creatorcontrib><creatorcontrib>WAKAMATSU, KAZUKI</creatorcontrib><creatorcontrib>USUI, MASAHITO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KIMURA, JUNICHI</au><au>SATOH, MAKOTO</au><au>WAKAMATSU, KAZUKI</au><au>USUI, MASAHITO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>POLYPROPYLENE LAMINATE FILM</title><date>1995-01-25</date><risdate>1995</risdate><abstract>A polypropylene laminate film comprises a crystalline polypropylene layer having laminated on at least one surface thereof a copolymer which is a random copolymer of propylene, ethylene, and an alpha -olefin having at least 4 carbon atoms. The copolymer is obtained by vapor-phase polymerization using a catalyst system comprising (A) a solid catalyst component containing magnesium, titanium and a halogen, (B) an organoaluminum compound, and (C) an electron donative compound in substantially the absence of a liquid medium. The copolymer satisfies the following requirements: (1) ethylene content of 3.0 - 7.0 wt%, (2) alpha -olefin content of 2.0 - 6.0 wt%, (3) ethylene alpha -olefin ratio of at least 1.0, (4) melt flow rate of 10 g/10 minutes or less, (5) ratio of weight average molecular weight: number average molecular weight ratio of 4.5 or less, (6) mp of 135 DEG C or less, and (7) n-hexane-soluble components less than 5.5 wt% The film has excellent low-temperature heat-sealing and hot tack properties, good transparency, and good blocking and solvent resistance.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING |
| title | POLYPROPYLENE LAMINATE FILM |
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