POLYMERIZATION PROCESS
The present invention relates to a process comprising the step of melt-mixing a semi-aromatic polyamide (A) having a melting point on second heating of 295 °C or less comprising terephthalamide repeat units and a polyamide oligomer (B) comprising terephthalamide repeat units and having an amine end...
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| creator | MUTEL Ahmet Turgut DOSHI Shailesh Ratilal |
| description | The present invention relates to a process comprising the step of melt-mixing a semi-aromatic polyamide (A) having a melting point on second heating of 295 °C or less comprising terephthalamide repeat units and a polyamide oligomer (B) comprising terephthalamide repeat units and having an amine end group concentration of less than 2000 me q/Kg and an inherent viscosity of at least 0.10, at a temperature which is greater than the melting point on first heating of both semi-aromatic polyamide (A) and polyamide oligomer (B) for a time period sufficient to produce semi-aromatic polyamide (C) having a melting point on second heating which is greater than or equal to 300 °C.
La presente invención se refiere a un proceso que comprende la etapa de mezclar en estado fundido una poliamida semiaromática (A) que tiene un punto de fusión en el segundo calentamiento de 295 °C o menos que comprende unidades de repetición de tereftalamida y un oligómero de poliamida (B) que comprende unidades de repetición de tereftalamida y que tiene una concentración de grupos de extremo de amina de menos de 2000 me q/Kg y una viscosidad inherente de al menos 0.10, a una temperatura que es mayor que el punto de fusión en el primer calentamiento de tanto la poliamida semiaromática (A) como el oligómero de poliamida (B) durante un periodo de tiempo suficiente para producir una poliamida semiaromática (C) que tiene un punto de fusión en el segundo calentamiento que es mayor que o igual a 300 °C. |
| format | Patent |
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La presente invención se refiere a un proceso que comprende la etapa de mezclar en estado fundido una poliamida semiaromática (A) que tiene un punto de fusión en el segundo calentamiento de 295 °C o menos que comprende unidades de repetición de tereftalamida y un oligómero de poliamida (B) que comprende unidades de repetición de tereftalamida y que tiene una concentración de grupos de extremo de amina de menos de 2000 me q/Kg y una viscosidad inherente de al menos 0.10, a una temperatura que es mayor que el punto de fusión en el primer calentamiento de tanto la poliamida semiaromática (A) como el oligómero de poliamida (B) durante un periodo de tiempo suficiente para producir una poliamida semiaromática (C) que tiene un punto de fusión en el segundo calentamiento que es mayor que o igual a 300 °C.</description><language>eng ; spa</language><subject>CHEMISTRY ; COMPOSITIONS BASED THEREON ; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS ; 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>2020</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=20201012&DB=EPODOC&CC=MX&NR=2020002840A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25562,76317</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20201012&DB=EPODOC&CC=MX&NR=2020002840A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>MUTEL Ahmet Turgut</creatorcontrib><creatorcontrib>DOSHI Shailesh Ratilal</creatorcontrib><title>POLYMERIZATION PROCESS</title><description>The present invention relates to a process comprising the step of melt-mixing a semi-aromatic polyamide (A) having a melting point on second heating of 295 °C or less comprising terephthalamide repeat units and a polyamide oligomer (B) comprising terephthalamide repeat units and having an amine end group concentration of less than 2000 me q/Kg and an inherent viscosity of at least 0.10, at a temperature which is greater than the melting point on first heating of both semi-aromatic polyamide (A) and polyamide oligomer (B) for a time period sufficient to produce semi-aromatic polyamide (C) having a melting point on second heating which is greater than or equal to 300 °C.
La presente invención se refiere a un proceso que comprende la etapa de mezclar en estado fundido una poliamida semiaromática (A) que tiene un punto de fusión en el segundo calentamiento de 295 °C o menos que comprende unidades de repetición de tereftalamida y un oligómero de poliamida (B) que comprende unidades de repetición de tereftalamida y que tiene una concentración de grupos de extremo de amina de menos de 2000 me q/Kg y una viscosidad inherente de al menos 0.10, a una temperatura que es mayor que el punto de fusión en el primer calentamiento de tanto la poliamida semiaromática (A) como el oligómero de poliamida (B) durante un periodo de tiempo suficiente para producir una poliamida semiaromática (C) que tiene un punto de fusión en el segundo calentamiento que es mayor que o igual a 300 °C.</description><subject>CHEMISTRY</subject><subject>COMPOSITIONS BASED THEREON</subject><subject>COMPOSITIONS OF MACROMOLECULAR COMPOUNDS</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>2020</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZBAL8PeJ9HUN8oxyDPH091MICPJ3dg0O5mFgTUvMKU7lhdLcDEpuriHOHrqpBfnxqcUFicmpeakl8b4RRgZGBgYGRhYmBo7GRCkCABkRH_A</recordid><startdate>20201012</startdate><enddate>20201012</enddate><creator>MUTEL Ahmet Turgut</creator><creator>DOSHI Shailesh Ratilal</creator><scope>EVB</scope></search><sort><creationdate>20201012</creationdate><title>POLYMERIZATION PROCESS</title><author>MUTEL Ahmet Turgut ; DOSHI Shailesh Ratilal</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_MX2020002840A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; spa</language><creationdate>2020</creationdate><topic>CHEMISTRY</topic><topic>COMPOSITIONS BASED THEREON</topic><topic>COMPOSITIONS OF MACROMOLECULAR COMPOUNDS</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>MUTEL Ahmet Turgut</creatorcontrib><creatorcontrib>DOSHI Shailesh Ratilal</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>MUTEL Ahmet Turgut</au><au>DOSHI Shailesh Ratilal</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>POLYMERIZATION PROCESS</title><date>2020-10-12</date><risdate>2020</risdate><abstract>The present invention relates to a process comprising the step of melt-mixing a semi-aromatic polyamide (A) having a melting point on second heating of 295 °C or less comprising terephthalamide repeat units and a polyamide oligomer (B) comprising terephthalamide repeat units and having an amine end group concentration of less than 2000 me q/Kg and an inherent viscosity of at least 0.10, at a temperature which is greater than the melting point on first heating of both semi-aromatic polyamide (A) and polyamide oligomer (B) for a time period sufficient to produce semi-aromatic polyamide (C) having a melting point on second heating which is greater than or equal to 300 °C.
La presente invención se refiere a un proceso que comprende la etapa de mezclar en estado fundido una poliamida semiaromática (A) que tiene un punto de fusión en el segundo calentamiento de 295 °C o menos que comprende unidades de repetición de tereftalamida y un oligómero de poliamida (B) que comprende unidades de repetición de tereftalamida y que tiene una concentración de grupos de extremo de amina de menos de 2000 me q/Kg y una viscosidad inherente de al menos 0.10, a una temperatura que es mayor que el punto de fusión en el primer calentamiento de tanto la poliamida semiaromática (A) como el oligómero de poliamida (B) durante un periodo de tiempo suficiente para producir una poliamida semiaromática (C) que tiene un punto de fusión en el segundo calentamiento que es mayor que o igual a 300 °C.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP |
| title | POLYMERIZATION PROCESS |
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