MELAMINE-BASED RESIN FOAM, ITS PRODUCTION AND MELAMINE FORMALDEHYDE CONDENSATE
PURPOSE:To obtain the subject foam useful as a heat insulating material, etc., having improved brittleness without damaging flame-retardancy and a heat transfer coefficient, free from cracks by expanding a resin composition containing a melamine formaldehyde condensate, a blowing agent and an isocya...
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| creator | IMASHIRO YASUO HASEGAWA TAKASHI OKUYA TATSUYA |
| description | PURPOSE:To obtain the subject foam useful as a heat insulating material, etc., having improved brittleness without damaging flame-retardancy and a heat transfer coefficient, free from cracks by expanding a resin composition containing a melamine formaldehyde condensate, a blowing agent and an isocyanate. CONSTITUTION:This melamine-based resin foam having solved a problem of brittleness is safely obtained by mixing (A) a melamine formaldehyde condensate obtained by reacting melamine with formaldehyde in the presence of 0.5-15 pts.wt. of a silane coupling agent (e.g. gamma-glycidoxypropyltrimethoxysilane) based on 100 pts.wt. of the melamine formaldehyde condensate with (B) a blowing agent (e.g. pentane) and (C) an isocyanate (e.g. polymeric-4,4'-diphenylmethane diisocyanate) to give a resin composition, packing the resin composition into a mold, expanding in an oven at 100 deg.C without damaging flame retardancy and a heat transfer coefficient. |
| format | Patent |
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CONSTITUTION:This melamine-based resin foam having solved a problem of brittleness is safely obtained by mixing (A) a melamine formaldehyde condensate obtained by reacting melamine with formaldehyde in the presence of 0.5-15 pts.wt. of a silane coupling agent (e.g. gamma-glycidoxypropyltrimethoxysilane) based on 100 pts.wt. of the melamine formaldehyde condensate with (B) a blowing agent (e.g. pentane) and (C) an isocyanate (e.g. polymeric-4,4'-diphenylmethane diisocyanate) to give a resin composition, packing the resin composition into a mold, expanding in an oven at 100 deg.C without damaging flame retardancy and a heat transfer coefficient.</description><edition>6</edition><language>eng</language><subject>AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G ; CHEMISTRY ; COMPOSITIONS BASED THEREON ; GENERAL PROCESSES OF COMPOUNDING ; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS ; METALLURGY ; ORGANIC MACROMOLECULAR COMPOUNDS ; THEIR PREPARATION OR CHEMICAL WORKING-UP ; WORKING-UP</subject><creationdate>1995</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=19950620&DB=EPODOC&CC=JP&NR=H07157590A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25544,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19950620&DB=EPODOC&CC=JP&NR=H07157590A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>IMASHIRO YASUO</creatorcontrib><creatorcontrib>HASEGAWA TAKASHI</creatorcontrib><creatorcontrib>OKUYA TATSUYA</creatorcontrib><title>MELAMINE-BASED RESIN FOAM, ITS PRODUCTION AND MELAMINE FORMALDEHYDE CONDENSATE</title><description>PURPOSE:To obtain the subject foam useful as a heat insulating material, etc., having improved brittleness without damaging flame-retardancy and a heat transfer coefficient, free from cracks by expanding a resin composition containing a melamine formaldehyde condensate, a blowing agent and an isocyanate. 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CONSTITUTION:This melamine-based resin foam having solved a problem of brittleness is safely obtained by mixing (A) a melamine formaldehyde condensate obtained by reacting melamine with formaldehyde in the presence of 0.5-15 pts.wt. of a silane coupling agent (e.g. gamma-glycidoxypropyltrimethoxysilane) based on 100 pts.wt. of the melamine formaldehyde condensate with (B) a blowing agent (e.g. pentane) and (C) an isocyanate (e.g. polymeric-4,4'-diphenylmethane diisocyanate) to give a resin composition, packing the resin composition into a mold, expanding in an oven at 100 deg.C without damaging flame retardancy and a heat transfer coefficient.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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| subjects | AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP |
| title | MELAMINE-BASED RESIN FOAM, ITS PRODUCTION AND MELAMINE FORMALDEHYDE CONDENSATE |
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