LACTATE POLYESTER COMPOSITION AND MOLDED PRODUCT THEREOF
PROBLEM TO BE SOLVED: To obtain a lactate polyester composition which is excellent in moldability, heat stability and storage stability, can be biodegraded after use, generates a small quantity of heat and no noxious gases when burnt, and is useful for packaging materials by mixing a specified lacta...
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| creator | KAKIZAWA YASUTOSHI FURUTA HIDEYUKI |
| description | PROBLEM TO BE SOLVED: To obtain a lactate polyester composition which is excellent in moldability, heat stability and storage stability, can be biodegraded after use, generates a small quantity of heat and no noxious gases when burnt, and is useful for packaging materials by mixing a specified lactate polyester with a plasticizer. SOLUTION: This composition is prepared by mixing a lactate polyester (A) subjected to treatment of deactivating the polymerization catalyst with a plasticizer (B) in a weight ratio of 99/1 to 40/60. A preferable example of the composition is one obtained by using a chelating agent and/or an acid phosphoric ester to deactivate the polymerization catalyst for this polyester. Component B is desirably a polyester plasticizer comprising repeating units each of which is derived from a dibasic acid and a dihydric alcohol and having a number-average molecular weight of 500-20,000, more desirable a plasticizer terminated with a monobasic acid and/or a monohydric alcohol. |
| format | Patent |
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SOLUTION: This composition is prepared by mixing a lactate polyester (A) subjected to treatment of deactivating the polymerization catalyst with a plasticizer (B) in a weight ratio of 99/1 to 40/60. A preferable example of the composition is one obtained by using a chelating agent and/or an acid phosphoric ester to deactivate the polymerization catalyst for this polyester. Component B is desirably a polyester plasticizer comprising repeating units each of which is derived from a dibasic acid and a dihydric alcohol and having a number-average molecular weight of 500-20,000, more desirable a plasticizer terminated with a monobasic acid and/or a monohydric alcohol.</description><edition>6</edition><language>eng</language><subject>AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G ; CHEMISTRY ; COMPOSITIONS BASED THEREON ; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS ; GENERAL PROCESSES OF COMPOUNDING ; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS ; METALLURGY ; ORGANIC MACROMOLECULAR COMPOUNDS ; THEIR PREPARATION OR CHEMICAL WORKING-UP ; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS ; WORKING-UP</subject><creationdate>1998</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=19980210&DB=EPODOC&CC=JP&NR=H1036651A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19980210&DB=EPODOC&CC=JP&NR=H1036651A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KAKIZAWA YASUTOSHI</creatorcontrib><creatorcontrib>FURUTA HIDEYUKI</creatorcontrib><title>LACTATE POLYESTER COMPOSITION AND MOLDED PRODUCT THEREOF</title><description>PROBLEM TO BE SOLVED: To obtain a lactate polyester composition which is excellent in moldability, heat stability and storage stability, can be biodegraded after use, generates a small quantity of heat and no noxious gases when burnt, and is useful for packaging materials by mixing a specified lactate polyester with a plasticizer. SOLUTION: This composition is prepared by mixing a lactate polyester (A) subjected to treatment of deactivating the polymerization catalyst with a plasticizer (B) in a weight ratio of 99/1 to 40/60. A preferable example of the composition is one obtained by using a chelating agent and/or an acid phosphoric ester to deactivate the polymerization catalyst for this polyester. 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SOLUTION: This composition is prepared by mixing a lactate polyester (A) subjected to treatment of deactivating the polymerization catalyst with a plasticizer (B) in a weight ratio of 99/1 to 40/60. A preferable example of the composition is one obtained by using a chelating agent and/or an acid phosphoric ester to deactivate the polymerization catalyst for this polyester. Component B is desirably a polyester plasticizer comprising repeating units each of which is derived from a dibasic acid and a dihydric alcohol and having a number-average molecular weight of 500-20,000, more desirable a plasticizer terminated with a monobasic acid and/or a monohydric alcohol.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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| subjects | AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS GENERAL PROCESSES OF COMPOUNDING MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WORKING-UP |
| title | LACTATE POLYESTER COMPOSITION AND MOLDED PRODUCT THEREOF |
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