Process for the welding of two polyamide parts
The invention relates to a process for the welding of two polyamide parts, both made of a polyamide composition comprising a polyamide and optionally additives, the polyamide of one part (part L) having a lower softening temperature than the polyamide of the other part (part H) and wherein the polya...
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| creator | CREVECOUER JEROEN MAGALHAES ARMINDA M L |
| description | The invention relates to a process for the welding of two polyamide parts, both made of a polyamide composition comprising a polyamide and optionally additives, the polyamide of one part (part L) having a lower softening temperature than the polyamide of the other part (part H) and wherein the polyamide composition of part L comprises one or more viscosity increasing additives increasing the melt shear viscosity of the polyamide composition at least by 30% compared to melt shear viscosity of the polyamide (measured according to ISO 11443 (A1) standard at a shear rate of 100 sin a capillary rheometer with I/d=30 mm/1 mm). The advantage is that a good weld strength is obtained and that parts with different properties can be combined. The invention further relates to polyamide welded objects obtainable by the process, like corrugated tubes, bellows, containers, fuel inlet systems, air inlet manifolds and airducts. |
| format | Patent |
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The advantage is that a good weld strength is obtained and that parts with different properties can be combined. The invention further relates to polyamide welded objects obtainable by the process, like corrugated tubes, bellows, containers, fuel inlet systems, air inlet manifolds and airducts.</description><edition>7</edition><language>eng</language><subject>AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G ; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING ; CHEMISTRY ; COMPOSITIONS BASED THEREON ; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS ; GENERAL PROCESSES OF COMPOUNDING ; METALLURGY ; ORGANIC MACROMOLECULAR COMPOUNDS ; PERFORMING OPERATIONS ; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR ; SHAPING OR JOINING OF PLASTICS ; THEIR PREPARATION OR CHEMICAL WORKING-UP ; TRANSPORTING ; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS ; WORKING OF PLASTICS ; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL ; WORKING-UP</subject><creationdate>2004</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=20040812&DB=EPODOC&CC=US&NR=2004157023A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20040812&DB=EPODOC&CC=US&NR=2004157023A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>CREVECOUER JEROEN</creatorcontrib><creatorcontrib>MAGALHAES ARMINDA M L</creatorcontrib><title>Process for the welding of two polyamide parts</title><description>The invention relates to a process for the welding of two polyamide parts, both made of a polyamide composition comprising a polyamide and optionally additives, the polyamide of one part (part L) having a lower softening temperature than the polyamide of the other part (part H) and wherein the polyamide composition of part L comprises one or more viscosity increasing additives increasing the melt shear viscosity of the polyamide composition at least by 30% compared to melt shear viscosity of the polyamide (measured according to ISO 11443 (A1) standard at a shear rate of 100 s<-1 >in a capillary rheometer with I/d=30 mm/1 mm). The advantage is that a good weld strength is obtained and that parts with different properties can be combined. The invention further relates to polyamide welded objects obtainable by the process, like corrugated tubes, bellows, containers, fuel inlet systems, air inlet manifolds and airducts.</description><subject>AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G</subject><subject>AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING</subject><subject>CHEMISTRY</subject><subject>COMPOSITIONS BASED THEREON</subject><subject>COMPOSITIONS OF MACROMOLECULAR COMPOUNDS</subject><subject>GENERAL PROCESSES OF COMPOUNDING</subject><subject>METALLURGY</subject><subject>ORGANIC MACROMOLECULAR COMPOUNDS</subject><subject>PERFORMING OPERATIONS</subject><subject>SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR</subject><subject>SHAPING OR JOINING OF PLASTICS</subject><subject>THEIR PREPARATION OR CHEMICAL WORKING-UP</subject><subject>TRANSPORTING</subject><subject>USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS</subject><subject>WORKING OF PLASTICS</subject><subject>WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL</subject><subject>WORKING-UP</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2004</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZNALKMpPTi0uVkjLL1IoyUhVKE_NScnMS1fIT1MoKc9XKMjPqUzMzUxJVShILCop5mFgTUvMKU7lhdLcDMpuriHOHrqpBfnxqcUFicmpeakl8aHBRgYGJoam5gZGxo6GxsSpAgCPhytH</recordid><startdate>20040812</startdate><enddate>20040812</enddate><creator>CREVECOUER JEROEN</creator><creator>MAGALHAES ARMINDA M L</creator><scope>EVB</scope></search><sort><creationdate>20040812</creationdate><title>Process for the welding of two polyamide parts</title><author>CREVECOUER JEROEN ; MAGALHAES ARMINDA M L</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US2004157023A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2004</creationdate><topic>AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G</topic><topic>AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING</topic><topic>CHEMISTRY</topic><topic>COMPOSITIONS BASED THEREON</topic><topic>COMPOSITIONS OF MACROMOLECULAR COMPOUNDS</topic><topic>GENERAL PROCESSES OF COMPOUNDING</topic><topic>METALLURGY</topic><topic>ORGANIC MACROMOLECULAR COMPOUNDS</topic><topic>PERFORMING OPERATIONS</topic><topic>SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR</topic><topic>SHAPING OR JOINING OF PLASTICS</topic><topic>THEIR PREPARATION OR CHEMICAL WORKING-UP</topic><topic>TRANSPORTING</topic><topic>USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS</topic><topic>WORKING OF PLASTICS</topic><topic>WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL</topic><topic>WORKING-UP</topic><toplevel>online_resources</toplevel><creatorcontrib>CREVECOUER JEROEN</creatorcontrib><creatorcontrib>MAGALHAES ARMINDA M L</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>CREVECOUER JEROEN</au><au>MAGALHAES ARMINDA M L</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Process for the welding of two polyamide parts</title><date>2004-08-12</date><risdate>2004</risdate><abstract>The invention relates to a process for the welding of two polyamide parts, both made of a polyamide composition comprising a polyamide and optionally additives, the polyamide of one part (part L) having a lower softening temperature than the polyamide of the other part (part H) and wherein the polyamide composition of part L comprises one or more viscosity increasing additives increasing the melt shear viscosity of the polyamide composition at least by 30% compared to melt shear viscosity of the polyamide (measured according to ISO 11443 (A1) standard at a shear rate of 100 s<-1 >in a capillary rheometer with I/d=30 mm/1 mm). The advantage is that a good weld strength is obtained and that parts with different properties can be combined. The invention further relates to polyamide welded objects obtainable by the process, like corrugated tubes, bellows, containers, fuel inlet systems, air inlet manifolds and airducts.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| subjects | AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS GENERAL PROCESSES OF COMPOUNDING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP |
| title | Process for the welding of two polyamide parts |
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