EXPANSION MOLDING PROCESS OF POLYPROPYLENE RESIN IN MOLD
PURPOSE:To minimize the diviation of dimension-shrinkage factor of a product by a method in which after a mold has been filled with the prefoamed particle of polypropylene resin in the state of compression, the prefoamed particle is heated and adhesively melted under the steam pressure equal to the...
Gespeichert in:
| Hauptverfasser: | , , |
|---|---|
| Format: | Patent |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext bestellen |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | |
|---|---|
| container_issue | |
| container_start_page | |
| container_title | |
| container_volume | |
| creator | TAMURA KO MAEDA HIROFUMI YAMAGUCHI KENJI |
| description | PURPOSE:To minimize the diviation of dimension-shrinkage factor of a product by a method in which after a mold has been filled with the prefoamed particle of polypropylene resin in the state of compression, the prefoamed particle is heated and adhesively melted under the steam pressure equal to the filling pressure in compression process or less. CONSTITUTION:After a mold has been filled with the prefoamed particle of polypropylene resin in the state of compression, said particle is heated and adhesively melted under the lower steam pressure than the filling pressure for compressing said particle, whereby the object foamed and molded in the mold is obtained. The steam pressure for adhesively melting the prefoamed particle is preferably 1.8kg/cm or higher. The filling pressure for compressing the prefoamed particle is preferably in the range of 2.0-5.0kg/cm . The prefoamed particle to be used has two melting points in the measurement of differential scanning calorimeter process, and the melting peak calory QH due to the melting point of high temperature side in two molting points is preferably 1.0-3.1cal/g. |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_JPH01136726A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>JPH01136726A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_JPH01136726A3</originalsourceid><addsrcrecordid>eNrjZLBwjQhw9Av29PdT8PX3cfH0c1cICPJ3dg0OVvB3Uwjw94kEcgMifVz9XBWCXIM9_RQ8ISp5GFjTEnOKU3mhNDeDoptriLOHbmpBfnxqcUFicmpeakm8V4CHgaGhsZm5kZmjMTFqAI0kKO4</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>EXPANSION MOLDING PROCESS OF POLYPROPYLENE RESIN IN MOLD</title><source>esp@cenet</source><creator>TAMURA KO ; MAEDA HIROFUMI ; YAMAGUCHI KENJI</creator><creatorcontrib>TAMURA KO ; MAEDA HIROFUMI ; YAMAGUCHI KENJI</creatorcontrib><description>PURPOSE:To minimize the diviation of dimension-shrinkage factor of a product by a method in which after a mold has been filled with the prefoamed particle of polypropylene resin in the state of compression, the prefoamed particle is heated and adhesively melted under the steam pressure equal to the filling pressure in compression process or less. CONSTITUTION:After a mold has been filled with the prefoamed particle of polypropylene resin in the state of compression, said particle is heated and adhesively melted under the lower steam pressure than the filling pressure for compressing said particle, whereby the object foamed and molded in the mold is obtained. The steam pressure for adhesively melting the prefoamed particle is preferably 1.8kg/cm or higher. The filling pressure for compressing the prefoamed particle is preferably in the range of 2.0-5.0kg/cm . The prefoamed particle to be used has two melting points in the measurement of differential scanning calorimeter process, and the melting peak calory QH due to the melting point of high temperature side in two molting points is preferably 1.0-3.1cal/g.</description><language>eng</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>1989</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=19890530&DB=EPODOC&CC=JP&NR=H01136726A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,309,781,886,25569,76552</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19890530&DB=EPODOC&CC=JP&NR=H01136726A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>TAMURA KO</creatorcontrib><creatorcontrib>MAEDA HIROFUMI</creatorcontrib><creatorcontrib>YAMAGUCHI KENJI</creatorcontrib><title>EXPANSION MOLDING PROCESS OF POLYPROPYLENE RESIN IN MOLD</title><description>PURPOSE:To minimize the diviation of dimension-shrinkage factor of a product by a method in which after a mold has been filled with the prefoamed particle of polypropylene resin in the state of compression, the prefoamed particle is heated and adhesively melted under the steam pressure equal to the filling pressure in compression process or less. CONSTITUTION:After a mold has been filled with the prefoamed particle of polypropylene resin in the state of compression, said particle is heated and adhesively melted under the lower steam pressure than the filling pressure for compressing said particle, whereby the object foamed and molded in the mold is obtained. The steam pressure for adhesively melting the prefoamed particle is preferably 1.8kg/cm or higher. The filling pressure for compressing the prefoamed particle is preferably in the range of 2.0-5.0kg/cm . The prefoamed particle to be used has two melting points in the measurement of differential scanning calorimeter process, and the melting peak calory QH due to the melting point of high temperature side in two molting points is preferably 1.0-3.1cal/g.</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>1989</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLBwjQhw9Av29PdT8PX3cfH0c1cICPJ3dg0OVvB3Uwjw94kEcgMifVz9XBWCXIM9_RQ8ISp5GFjTEnOKU3mhNDeDoptriLOHbmpBfnxqcUFicmpeakm8V4CHgaGhsZm5kZmjMTFqAI0kKO4</recordid><startdate>19890530</startdate><enddate>19890530</enddate><creator>TAMURA KO</creator><creator>MAEDA HIROFUMI</creator><creator>YAMAGUCHI KENJI</creator><scope>EVB</scope></search><sort><creationdate>19890530</creationdate><title>EXPANSION MOLDING PROCESS OF POLYPROPYLENE RESIN IN MOLD</title><author>TAMURA KO ; MAEDA HIROFUMI ; YAMAGUCHI KENJI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH01136726A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1989</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>TAMURA KO</creatorcontrib><creatorcontrib>MAEDA HIROFUMI</creatorcontrib><creatorcontrib>YAMAGUCHI KENJI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>TAMURA KO</au><au>MAEDA HIROFUMI</au><au>YAMAGUCHI KENJI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>EXPANSION MOLDING PROCESS OF POLYPROPYLENE RESIN IN MOLD</title><date>1989-05-30</date><risdate>1989</risdate><abstract>PURPOSE:To minimize the diviation of dimension-shrinkage factor of a product by a method in which after a mold has been filled with the prefoamed particle of polypropylene resin in the state of compression, the prefoamed particle is heated and adhesively melted under the steam pressure equal to the filling pressure in compression process or less. CONSTITUTION:After a mold has been filled with the prefoamed particle of polypropylene resin in the state of compression, said particle is heated and adhesively melted under the lower steam pressure than the filling pressure for compressing said particle, whereby the object foamed and molded in the mold is obtained. The steam pressure for adhesively melting the prefoamed particle is preferably 1.8kg/cm or higher. The filling pressure for compressing the prefoamed particle is preferably in the range of 2.0-5.0kg/cm . The prefoamed particle to be used has two melting points in the measurement of differential scanning calorimeter process, and the melting peak calory QH due to the melting point of high temperature side in two molting points is preferably 1.0-3.1cal/g.</abstract><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext_linktorsrc |
| identifier | |
| ispartof | |
| issn | |
| language | eng |
| recordid | cdi_epo_espacenet_JPH01136726A |
| source | esp@cenet |
| 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 | EXPANSION MOLDING PROCESS OF POLYPROPYLENE RESIN IN MOLD |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-15T20%3A58%3A42IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=TAMURA%20KO&rft.date=1989-05-30&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3EJPH01136726A%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true |