Method of making shaped articles by deep-drawing preformed PU parts based on polyisocyanate addition products
Beim Herstellen von Formkörpern durch Tiefziehen vorgefertigter PUR-Teile oder Verpressen von kleinteiligem PUR-Material, beides auf Basis von Polyisocyanat-Polyadditionsprodukten einer Dichte von mindestens 0,8 g/cm³, verkürzt man die Zykluszeiten dadurch, daß man den tiefgezogenen Formkörper in ei...
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| creator | RASSHOFER, WERNER JUERGENS, EBERHARD WAGNER, JOACHIM ELSNER, THOMAS FAEHNDRICH, JUERGEN |
| description | Beim Herstellen von Formkörpern durch Tiefziehen vorgefertigter PUR-Teile oder Verpressen von kleinteiligem PUR-Material, beides auf Basis von Polyisocyanat-Polyadditionsprodukten einer Dichte von mindestens 0,8 g/cm³, verkürzt man die Zykluszeiten dadurch, daß man den tiefgezogenen Formkörper in einer Tiefziehform bzw. kleinteiliges PUR-Material in einer Preßform einer Verweilzeit von mindestens 10 sec, vorzugsweise von 2 bis 10 min, bei einer Temperatur bis zu 230°C und einem Druck bis zu 300 bar unterwirft und anschließend heiß, also ohne Abkühlung, entformt.
The invention is directed to a process for the production of molded articles by deep-drawing a prefabricated polyurethane(urea) part produced from a polyisocyanate polyaddition product having a specific gravity of at least 0.8 g/cm3. The part is placed inside a deep-drawing mold and pressed at a temperature of up to 230 DEG C. and a pressure of up to 1,000 bar. After the deep-drawing process, the part is subjected to a dwell time of at least 10 seconds at a temperature of up to 230 DEG C. and a pressure of up to 1,000 and is immediately thereafter removed from the mold. |
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The invention is directed to a process for the production of molded articles by deep-drawing a prefabricated polyurethane(urea) part produced from a polyisocyanate polyaddition product having a specific gravity of at least 0.8 g/cm3. The part is placed inside a deep-drawing mold and pressed at a temperature of up to 230 DEG C. and a pressure of up to 1,000 bar. After the deep-drawing process, the part is subjected to a dwell time of at least 10 seconds at a temperature of up to 230 DEG C. and a pressure of up to 1,000 and is immediately thereafter removed from the mold.</description><language>eng ; fre ; ger</language><subject>AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING ; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS ; PERFORMING OPERATIONS ; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR ; SHAPING OR JOINING OF PLASTICS ; TRANSPORTING ; WORKING OF PLASTICS ; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL</subject><creationdate>1991</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=19910508&DB=EPODOC&CC=EP&NR=0425928A2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19910508&DB=EPODOC&CC=EP&NR=0425928A2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>RASSHOFER, WERNER</creatorcontrib><creatorcontrib>JUERGENS, EBERHARD</creatorcontrib><creatorcontrib>WAGNER, JOACHIM</creatorcontrib><creatorcontrib>ELSNER, THOMAS</creatorcontrib><creatorcontrib>FAEHNDRICH, JUERGEN</creatorcontrib><title>Method of making shaped articles by deep-drawing preformed PU parts based on polyisocyanate addition products</title><description>Beim Herstellen von Formkörpern durch Tiefziehen vorgefertigter PUR-Teile oder Verpressen von kleinteiligem PUR-Material, beides auf Basis von Polyisocyanat-Polyadditionsprodukten einer Dichte von mindestens 0,8 g/cm³, verkürzt man die Zykluszeiten dadurch, daß man den tiefgezogenen Formkörper in einer Tiefziehform bzw. kleinteiliges PUR-Material in einer Preßform einer Verweilzeit von mindestens 10 sec, vorzugsweise von 2 bis 10 min, bei einer Temperatur bis zu 230°C und einem Druck bis zu 300 bar unterwirft und anschließend heiß, also ohne Abkühlung, entformt.
The invention is directed to a process for the production of molded articles by deep-drawing a prefabricated polyurethane(urea) part produced from a polyisocyanate polyaddition product having a specific gravity of at least 0.8 g/cm3. The part is placed inside a deep-drawing mold and pressed at a temperature of up to 230 DEG C. and a pressure of up to 1,000 bar. After the deep-drawing process, the part is subjected to a dwell time of at least 10 seconds at a temperature of up to 230 DEG C. and a pressure of up to 1,000 and is immediately thereafter removed from the mold.</description><subject>AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING</subject><subject>INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS</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>TRANSPORTING</subject><subject>WORKING OF PLASTICS</subject><subject>WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1991</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNykEKwjAQBdBuXIh6h7lAQaqCLkUqboQudF3GzNQGm8yQRKS3NwUP4Orz_3_zwl059UIgHTh8Wf-E2KMyAYZkzcARHiMQs5YU8DP9GriT4DJp7qCZZYIxV_GgMow2ihnRY2JAIpvstAeht0lxWcw6HCKvfrko4FzfTpeSVVqOioY9p7Zu1ttqd6j2x2rzB_kC1_RB6A</recordid><startdate>19910508</startdate><enddate>19910508</enddate><creator>RASSHOFER, WERNER</creator><creator>JUERGENS, EBERHARD</creator><creator>WAGNER, JOACHIM</creator><creator>ELSNER, THOMAS</creator><creator>FAEHNDRICH, JUERGEN</creator><scope>EVB</scope></search><sort><creationdate>19910508</creationdate><title>Method of making shaped articles by deep-drawing preformed PU parts based on polyisocyanate addition products</title><author>RASSHOFER, WERNER ; JUERGENS, EBERHARD ; WAGNER, JOACHIM ; ELSNER, THOMAS ; FAEHNDRICH, JUERGEN</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP0425928A23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>1991</creationdate><topic>AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING</topic><topic>INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS</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>TRANSPORTING</topic><topic>WORKING OF PLASTICS</topic><topic>WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL</topic><toplevel>online_resources</toplevel><creatorcontrib>RASSHOFER, WERNER</creatorcontrib><creatorcontrib>JUERGENS, EBERHARD</creatorcontrib><creatorcontrib>WAGNER, JOACHIM</creatorcontrib><creatorcontrib>ELSNER, THOMAS</creatorcontrib><creatorcontrib>FAEHNDRICH, JUERGEN</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>RASSHOFER, WERNER</au><au>JUERGENS, EBERHARD</au><au>WAGNER, JOACHIM</au><au>ELSNER, THOMAS</au><au>FAEHNDRICH, JUERGEN</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Method of making shaped articles by deep-drawing preformed PU parts based on polyisocyanate addition products</title><date>1991-05-08</date><risdate>1991</risdate><abstract>Beim Herstellen von Formkörpern durch Tiefziehen vorgefertigter PUR-Teile oder Verpressen von kleinteiligem PUR-Material, beides auf Basis von Polyisocyanat-Polyadditionsprodukten einer Dichte von mindestens 0,8 g/cm³, verkürzt man die Zykluszeiten dadurch, daß man den tiefgezogenen Formkörper in einer Tiefziehform bzw. kleinteiliges PUR-Material in einer Preßform einer Verweilzeit von mindestens 10 sec, vorzugsweise von 2 bis 10 min, bei einer Temperatur bis zu 230°C und einem Druck bis zu 300 bar unterwirft und anschließend heiß, also ohne Abkühlung, entformt.
The invention is directed to a process for the production of molded articles by deep-drawing a prefabricated polyurethane(urea) part produced from a polyisocyanate polyaddition product having a specific gravity of at least 0.8 g/cm3. The part is placed inside a deep-drawing mold and pressed at a temperature of up to 230 DEG C. and a pressure of up to 1,000 bar. After the deep-drawing process, the part is subjected to a dwell time of at least 10 seconds at a temperature of up to 230 DEG C. and a pressure of up to 1,000 and is immediately thereafter removed from the mold.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre ; ger |
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| subjects | AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL |
| title | Method of making shaped articles by deep-drawing preformed PU parts based on polyisocyanate addition products |
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