COMPOSITION AND PROCESS FOR PREPARING "BIOBASED" POLYAMIDE WITH IMPROVED FIRE RESISTANCE
The invention relates to a matter composition, consisting of biobased polyamide (polyamide obtained entirely from renewable sources) (bio-PA), an antioxidant and a fire-proofing agent without halogenated derivatives and to a process for preparing it. The composition, as claimed by the invention, exh...
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creator | AFILIPOAEI ANDREEA TEODORESCU GEORGE MIHAIL PAVEL DUMITRU OCTAVIAN VULUGA ZINA ZĂVOIANU RODICA COROBEA MIHAI COSMIN STAMATE ALEXANDRA ELISABETA CRUCEANU ANCA |
description | The invention relates to a matter composition, consisting of biobased polyamide (polyamide obtained entirely from renewable sources) (bio-PA), an antioxidant and a fire-proofing agent without halogenated derivatives and to a process for preparing it. The composition, as claimed by the invention, exhibits an improved resistance to fire (compared to bio-PA) and it is constituted, in mass percentage, of 84...96% bio-PA, 3.92...15.9% fire-proofing agent compound, such as lamellar double magnesium and aluminium hydroxide with molybdate anions bound in the interlayer region (LDHMo) and 0.08...0.25% an antioxidant agent, such as Irganox 1076. The process, as claimed by the invention, consists in mixing bio-PA with the antioxidant agent in a rotary mixer, at room temperature, for 10...15 min, adding the fire-proofing agent LDHMo, and continuing mixing for another 10...15 min, homogenizing the resulting mixture in a molten state in a double-screw extruder, at a speed of 150...160 rpm and a temperature of the extruder head of 210...220°C, granulating the extruded threads and the processing the granules by injection, resulting in a material characterized by a flame retardant rating V-0, a value of the limiting oxygen index (LOI) of more than 31%, a shock resistance improved by more than 16%, which maintains at least 60% of the initial elasticity of the bio-PA.
Invenţia se referă la o compoziţie de material şi la un procedeu de obţinere a acesteia constituită din poliamidă de tip biobased (poliamidă obţinută integral din surse regenerabile) (bio-PA), antioxidant şi un ignifugant fără derivaţi halogenaţi. Compoziţia, conform invenţiei, prezintă rezistenţă la foc îmbunătăţită (faţă de bio-PA) şi este constituită în procente masice din 84...96% bio-PA, 3,92...15,9% un compus ignifugant de tip hidroxid dublu lamelar de magneziu şi aluminiu cu anioni molibdat legaţi în regiunea interstrat (LDHMo) şi 0,08...0,25% un agent antioxidant de tip Irganox 1076. Procedeul, conform invenţiei, constă în amestecarea într-un amestecător rotativ, la temperatura camerei, a bio-PA cu agentul antioxidant, timp de 10...15 min, adăugarea agentului de ignifugare LDHMo, şi continuarea amestecării încă 10...15 min, omogenizarea în topitură a amestecului rezultat într-un extruder dublu-şnec, la o turaţie de 150...160 rpm şi o temperatură pe capul de extrudere de 210...220°C, granularea firelor extruse şi prelucrarea prin injecţie a granulelor, rezultând un material caracterizat prin clasa V-o de |
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Invenţia se referă la o compoziţie de material şi la un procedeu de obţinere a acesteia constituită din poliamidă de tip biobased (poliamidă obţinută integral din surse regenerabile) (bio-PA), antioxidant şi un ignifugant fără derivaţi halogenaţi. Compoziţia, conform invenţiei, prezintă rezistenţă la foc îmbunătăţită (faţă de bio-PA) şi este constituită în procente masice din 84...96% bio-PA, 3,92...15,9% un compus ignifugant de tip hidroxid dublu lamelar de magneziu şi aluminiu cu anioni molibdat legaţi în regiunea interstrat (LDHMo) şi 0,08...0,25% un agent antioxidant de tip Irganox 1076. Procedeul, conform invenţiei, constă în amestecarea într-un amestecător rotativ, la temperatura camerei, a bio-PA cu agentul antioxidant, timp de 10...15 min, adăugarea agentului de ignifugare LDHMo, şi continuarea amestecării încă 10...15 min, omogenizarea în topitură a amestecului rezultat într-un extruder dublu-şnec, la o turaţie de 150...160 rpm şi o temperatură pe capul de extrudere de 210...220°C, granularea firelor extruse şi prelucrarea prin injecţie a granulelor, rezultând un material caracterizat prin clasa V-o de ignifugare, o valoare a indicelui limită de oxigen (LOI) de peste 31%, o rezistenţă la şoc îmbunătăţită cu peste 16% şi o menţinere a cel puţin 60% din elasticitatea iniţială a bio-PA.</description><language>eng ; rum</language><subject>CHEMISTRY ; COMPOSITIONS BASED THEREON ; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS ; METALLURGY ; ORGANIC MACROMOLECULAR COMPOUNDS ; THEIR PREPARATION OR CHEMICAL WORKING-UP ; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS</subject><creationdate>2022</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=20220830&DB=EPODOC&CC=RO&NR=135932A2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20220830&DB=EPODOC&CC=RO&NR=135932A2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>AFILIPOAEI ANDREEA</creatorcontrib><creatorcontrib>TEODORESCU GEORGE MIHAIL</creatorcontrib><creatorcontrib>PAVEL DUMITRU OCTAVIAN</creatorcontrib><creatorcontrib>VULUGA ZINA</creatorcontrib><creatorcontrib>ZĂVOIANU RODICA</creatorcontrib><creatorcontrib>COROBEA MIHAI COSMIN</creatorcontrib><creatorcontrib>STAMATE ALEXANDRA ELISABETA</creatorcontrib><creatorcontrib>CRUCEANU ANCA</creatorcontrib><title>COMPOSITION AND PROCESS FOR PREPARING "BIOBASED" POLYAMIDE WITH IMPROVED FIRE RESISTANCE</title><description>The invention relates to a matter composition, consisting of biobased polyamide (polyamide obtained entirely from renewable sources) (bio-PA), an antioxidant and a fire-proofing agent without halogenated derivatives and to a process for preparing it. The composition, as claimed by the invention, exhibits an improved resistance to fire (compared to bio-PA) and it is constituted, in mass percentage, of 84...96% bio-PA, 3.92...15.9% fire-proofing agent compound, such as lamellar double magnesium and aluminium hydroxide with molybdate anions bound in the interlayer region (LDHMo) and 0.08...0.25% an antioxidant agent, such as Irganox 1076. The process, as claimed by the invention, consists in mixing bio-PA with the antioxidant agent in a rotary mixer, at room temperature, for 10...15 min, adding the fire-proofing agent LDHMo, and continuing mixing for another 10...15 min, homogenizing the resulting mixture in a molten state in a double-screw extruder, at a speed of 150...160 rpm and a temperature of the extruder head of 210...220°C, granulating the extruded threads and the processing the granules by injection, resulting in a material characterized by a flame retardant rating V-0, a value of the limiting oxygen index (LOI) of more than 31%, a shock resistance improved by more than 16%, which maintains at least 60% of the initial elasticity of the bio-PA.
Invenţia se referă la o compoziţie de material şi la un procedeu de obţinere a acesteia constituită din poliamidă de tip biobased (poliamidă obţinută integral din surse regenerabile) (bio-PA), antioxidant şi un ignifugant fără derivaţi halogenaţi. Compoziţia, conform invenţiei, prezintă rezistenţă la foc îmbunătăţită (faţă de bio-PA) şi este constituită în procente masice din 84...96% bio-PA, 3,92...15,9% un compus ignifugant de tip hidroxid dublu lamelar de magneziu şi aluminiu cu anioni molibdat legaţi în regiunea interstrat (LDHMo) şi 0,08...0,25% un agent antioxidant de tip Irganox 1076. Procedeul, conform invenţiei, constă în amestecarea într-un amestecător rotativ, la temperatura camerei, a bio-PA cu agentul antioxidant, timp de 10...15 min, adăugarea agentului de ignifugare LDHMo, şi continuarea amestecării încă 10...15 min, omogenizarea în topitură a amestecului rezultat într-un extruder dublu-şnec, la o turaţie de 150...160 rpm şi o temperatură pe capul de extrudere de 210...220°C, granularea firelor extruse şi prelucrarea prin injecţie a granulelor, rezultând un material caracterizat prin clasa V-o de ignifugare, o valoare a indicelui limită de oxigen (LOI) de peste 31%, o rezistenţă la şoc îmbunătăţită cu peste 16% şi o menţinere a cel puţin 60% din elasticitatea iniţială a bio-PA.</description><subject>CHEMISTRY</subject><subject>COMPOSITIONS BASED THEREON</subject><subject>COMPOSITIONS OF MACROMOLECULAR COMPOUNDS</subject><subject>METALLURGY</subject><subject>ORGANIC MACROMOLECULAR COMPOUNDS</subject><subject>THEIR PREPARATION OR CHEMICAL WORKING-UP</subject><subject>USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2022</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqFi7EKwjAUALM4iPoNPro72ODgmCYv9oHJC0moOpUicRIt1P_HDu5Od8PdUlw1u8CJMrEH5Q2EyBpTAstxdgwqkj9B1RA3KqGpIPD5phwZhAvlFsjNR4cGLEWEiIlSVl7jWiwew3Mqmx9XYmsx63ZXxndfpnG4l1f59JH38nCUtarl_-ILMvMwfA</recordid><startdate>20220830</startdate><enddate>20220830</enddate><creator>AFILIPOAEI ANDREEA</creator><creator>TEODORESCU GEORGE MIHAIL</creator><creator>PAVEL DUMITRU OCTAVIAN</creator><creator>VULUGA ZINA</creator><creator>ZĂVOIANU RODICA</creator><creator>COROBEA MIHAI COSMIN</creator><creator>STAMATE ALEXANDRA ELISABETA</creator><creator>CRUCEANU ANCA</creator><scope>EVB</scope></search><sort><creationdate>20220830</creationdate><title>COMPOSITION AND PROCESS FOR PREPARING "BIOBASED" POLYAMIDE WITH IMPROVED FIRE RESISTANCE</title><author>AFILIPOAEI ANDREEA ; TEODORESCU GEORGE MIHAIL ; PAVEL DUMITRU OCTAVIAN ; VULUGA ZINA ; ZĂVOIANU RODICA ; COROBEA MIHAI COSMIN ; STAMATE ALEXANDRA ELISABETA ; CRUCEANU ANCA</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_RO135932A23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; rum</language><creationdate>2022</creationdate><topic>CHEMISTRY</topic><topic>COMPOSITIONS BASED THEREON</topic><topic>COMPOSITIONS OF MACROMOLECULAR COMPOUNDS</topic><topic>METALLURGY</topic><topic>ORGANIC MACROMOLECULAR COMPOUNDS</topic><topic>THEIR PREPARATION OR CHEMICAL WORKING-UP</topic><topic>USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS</topic><toplevel>online_resources</toplevel><creatorcontrib>AFILIPOAEI ANDREEA</creatorcontrib><creatorcontrib>TEODORESCU GEORGE MIHAIL</creatorcontrib><creatorcontrib>PAVEL DUMITRU OCTAVIAN</creatorcontrib><creatorcontrib>VULUGA ZINA</creatorcontrib><creatorcontrib>ZĂVOIANU RODICA</creatorcontrib><creatorcontrib>COROBEA MIHAI COSMIN</creatorcontrib><creatorcontrib>STAMATE ALEXANDRA ELISABETA</creatorcontrib><creatorcontrib>CRUCEANU ANCA</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>AFILIPOAEI ANDREEA</au><au>TEODORESCU GEORGE MIHAIL</au><au>PAVEL DUMITRU OCTAVIAN</au><au>VULUGA ZINA</au><au>ZĂVOIANU RODICA</au><au>COROBEA MIHAI COSMIN</au><au>STAMATE ALEXANDRA ELISABETA</au><au>CRUCEANU ANCA</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>COMPOSITION AND PROCESS FOR PREPARING "BIOBASED" POLYAMIDE WITH IMPROVED FIRE RESISTANCE</title><date>2022-08-30</date><risdate>2022</risdate><abstract>The invention relates to a matter composition, consisting of biobased polyamide (polyamide obtained entirely from renewable sources) (bio-PA), an antioxidant and a fire-proofing agent without halogenated derivatives and to a process for preparing it. The composition, as claimed by the invention, exhibits an improved resistance to fire (compared to bio-PA) and it is constituted, in mass percentage, of 84...96% bio-PA, 3.92...15.9% fire-proofing agent compound, such as lamellar double magnesium and aluminium hydroxide with molybdate anions bound in the interlayer region (LDHMo) and 0.08...0.25% an antioxidant agent, such as Irganox 1076. The process, as claimed by the invention, consists in mixing bio-PA with the antioxidant agent in a rotary mixer, at room temperature, for 10...15 min, adding the fire-proofing agent LDHMo, and continuing mixing for another 10...15 min, homogenizing the resulting mixture in a molten state in a double-screw extruder, at a speed of 150...160 rpm and a temperature of the extruder head of 210...220°C, granulating the extruded threads and the processing the granules by injection, resulting in a material characterized by a flame retardant rating V-0, a value of the limiting oxygen index (LOI) of more than 31%, a shock resistance improved by more than 16%, which maintains at least 60% of the initial elasticity of the bio-PA.
Invenţia se referă la o compoziţie de material şi la un procedeu de obţinere a acesteia constituită din poliamidă de tip biobased (poliamidă obţinută integral din surse regenerabile) (bio-PA), antioxidant şi un ignifugant fără derivaţi halogenaţi. Compoziţia, conform invenţiei, prezintă rezistenţă la foc îmbunătăţită (faţă de bio-PA) şi este constituită în procente masice din 84...96% bio-PA, 3,92...15,9% un compus ignifugant de tip hidroxid dublu lamelar de magneziu şi aluminiu cu anioni molibdat legaţi în regiunea interstrat (LDHMo) şi 0,08...0,25% un agent antioxidant de tip Irganox 1076. Procedeul, conform invenţiei, constă în amestecarea într-un amestecător rotativ, la temperatura camerei, a bio-PA cu agentul antioxidant, timp de 10...15 min, adăugarea agentului de ignifugare LDHMo, şi continuarea amestecării încă 10...15 min, omogenizarea în topitură a amestecului rezultat într-un extruder dublu-şnec, la o turaţie de 150...160 rpm şi o temperatură pe capul de extrudere de 210...220°C, granularea firelor extruse şi prelucrarea prin injecţie a granulelor, rezultând un material caracterizat prin clasa V-o de ignifugare, o valoare a indicelui limită de oxigen (LOI) de peste 31%, o rezistenţă la şoc îmbunătăţită cu peste 16% şi o menţinere a cel puţin 60% din elasticitatea iniţială a bio-PA.</abstract><oa>free_for_read</oa></addata></record> |
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subjects | CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS |
title | COMPOSITION AND PROCESS FOR PREPARING "BIOBASED" POLYAMIDE WITH IMPROVED FIRE RESISTANCE |
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