Catalysts for polyester production, process for producing polyester, and polyester
By the present invention, there are provided a catalyst for polyester preparation, which comprises a solid titanium compound containing titanium, oxygen, carbon and hydrogen and having a Ti-O bond and which has a maximum solubility in ethylene glycol, as measured when the catalyst is dissolved in et...
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| creator | SHIMIZU AKIYOSHI HIRAOKA SHOJI HORI HIDESHI EHARA FUJITO MUKAI NOBUMASA |
| description | By the present invention, there are provided a catalyst for polyester preparation, which comprises a solid titanium compound containing titanium, oxygen, carbon and hydrogen and having a Ti-O bond and which has a maximum solubility in ethylene glycol, as measured when the catalyst is dissolved in ethylene glycol under heating at 150° C., of not less than 3,000 ppm in terms of a titanium atom, a catalyst for polyester preparation, which comprises a titanium-containing solution wherein a contact product of a hydrolyzate of a titanium halide or a hydrolyzate of a titanium alkoxide with a polyhydric alcohol is dissolved in ethylene glycol in an amount of 3,000 to 100,000 ppm in terms of a titanium atom, a process for preparing a polyester using the catalyst, and a polyester prepared by the process. According to the present invention, a polyester can be prepared with a higher catalytic activity as compared with a case of using a conventional catalyst, and a polyester having better transparency, better hue and lower acetaldehyde content can be obtained as compared with a process using an antimony compound as a polycondensation catalyst. |
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According to the present invention, a polyester can be prepared with a higher catalytic activity as compared with a case of using a conventional catalyst, and a polyester having better transparency, better hue and lower acetaldehyde content can be obtained as compared with a process using an antimony compound as a polycondensation catalyst.</description><edition>7</edition><language>eng</language><subject>CHEMISTRY ; COMPOSITIONS BASED THEREON ; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS ; METALLURGY ; ORGANIC MACROMOLECULAR COMPOUNDS ; THEIR PREPARATION OR CHEMICAL WORKING-UP</subject><creationdate>2002</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=20021219&DB=EPODOC&CC=US&NR=2002193555A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20021219&DB=EPODOC&CC=US&NR=2002193555A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SHIMIZU AKIYOSHI</creatorcontrib><creatorcontrib>HIRAOKA SHOJI</creatorcontrib><creatorcontrib>HORI HIDESHI</creatorcontrib><creatorcontrib>EHARA FUJITO</creatorcontrib><creatorcontrib>MUKAI NOBUMASA</creatorcontrib><title>Catalysts for polyester production, process for producing polyester, and polyester</title><description>By the present invention, there are provided a catalyst for polyester preparation, which comprises a solid titanium compound containing titanium, oxygen, carbon and hydrogen and having a Ti-O bond and which has a maximum solubility in ethylene glycol, as measured when the catalyst is dissolved in ethylene glycol under heating at 150° C., of not less than 3,000 ppm in terms of a titanium atom, a catalyst for polyester preparation, which comprises a titanium-containing solution wherein a contact product of a hydrolyzate of a titanium halide or a hydrolyzate of a titanium alkoxide with a polyhydric alcohol is dissolved in ethylene glycol in an amount of 3,000 to 100,000 ppm in terms of a titanium atom, a process for preparing a polyester using the catalyst, and a polyester prepared by the process. According to the present invention, a polyester can be prepared with a higher catalytic activity as compared with a case of using a conventional catalyst, and a polyester having better transparency, better hue and lower acetaldehyde content can be obtained as compared with a process using an antimony compound as a polycondensation catalyst.</description><subject>CHEMISTRY</subject><subject>COMPOSITIONS BASED THEREON</subject><subject>MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS</subject><subject>METALLURGY</subject><subject>ORGANIC MACROMOLECULAR COMPOUNDS</subject><subject>THEIR PREPARATION OR CHEMICAL WORKING-UP</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2002</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZAhyTixJzKksLilWSMsvUijIz6lMLS5JBbKK8lNKk0sy8_N0QOzk1GKoCrB4Zl46Qq2OQmJeCoLLw8CalphTnMoLpbkZlN1cQ5w9dFML8uNTiwsSk1PzUkviQ4ONDAyMDC2NTU1NHQ2NiVMFAHMvOeQ</recordid><startdate>20021219</startdate><enddate>20021219</enddate><creator>SHIMIZU AKIYOSHI</creator><creator>HIRAOKA SHOJI</creator><creator>HORI HIDESHI</creator><creator>EHARA FUJITO</creator><creator>MUKAI NOBUMASA</creator><scope>EVB</scope></search><sort><creationdate>20021219</creationdate><title>Catalysts for polyester production, process for producing polyester, and polyester</title><author>SHIMIZU AKIYOSHI ; HIRAOKA SHOJI ; HORI HIDESHI ; EHARA FUJITO ; MUKAI NOBUMASA</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US2002193555A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2002</creationdate><topic>CHEMISTRY</topic><topic>COMPOSITIONS BASED THEREON</topic><topic>MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS</topic><topic>METALLURGY</topic><topic>ORGANIC MACROMOLECULAR COMPOUNDS</topic><topic>THEIR PREPARATION OR CHEMICAL WORKING-UP</topic><toplevel>online_resources</toplevel><creatorcontrib>SHIMIZU AKIYOSHI</creatorcontrib><creatorcontrib>HIRAOKA SHOJI</creatorcontrib><creatorcontrib>HORI HIDESHI</creatorcontrib><creatorcontrib>EHARA FUJITO</creatorcontrib><creatorcontrib>MUKAI NOBUMASA</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SHIMIZU AKIYOSHI</au><au>HIRAOKA SHOJI</au><au>HORI HIDESHI</au><au>EHARA FUJITO</au><au>MUKAI NOBUMASA</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Catalysts for polyester production, process for producing polyester, and polyester</title><date>2002-12-19</date><risdate>2002</risdate><abstract>By the present invention, there are provided a catalyst for polyester preparation, which comprises a solid titanium compound containing titanium, oxygen, carbon and hydrogen and having a Ti-O bond and which has a maximum solubility in ethylene glycol, as measured when the catalyst is dissolved in ethylene glycol under heating at 150° C., of not less than 3,000 ppm in terms of a titanium atom, a catalyst for polyester preparation, which comprises a titanium-containing solution wherein a contact product of a hydrolyzate of a titanium halide or a hydrolyzate of a titanium alkoxide with a polyhydric alcohol is dissolved in ethylene glycol in an amount of 3,000 to 100,000 ppm in terms of a titanium atom, a process for preparing a polyester using the catalyst, and a polyester prepared by the process. According to the present invention, a polyester can be prepared with a higher catalytic activity as compared with a case of using a conventional catalyst, and a polyester having better transparency, better hue and lower acetaldehyde content can be obtained as compared with a process using an antimony compound as a polycondensation catalyst.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP |
| title | Catalysts for polyester production, process for producing polyester, and polyester |
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