Journal of The Adhesion Society of Japan
Online ISSN : 2187-4816
Print ISSN : 0916-4812
ISSN-L : 0916-4812
Volume 39, Issue 6
Displaying 1-5 of 5 articles from this issue
Review
Review
Review
Review
Original Paper
  • Shizuo KUBOTA, Takuya MAEDA, Hajime MORI
    2003 Volume 39 Issue 6 Pages 240-247
    Published: June 01, 2003
    Released on J-STAGE: October 31, 2014
    JOURNAL FREE ACCESS
    Thechemicalrecyclingofunsaturatedpolyesterresinwastedischargedinthebuttonmanufacturing,FRPwastedischargedintheseptictankmanufacturingandpolyesterresinwasteofthePETbottlewastewasexamined.Apolyesterresinwastewascrushed,anditdecomposedinthehydroxycarboxylicacid,andthedehydrationwascondensedasitiswithoutrefiningthedegradationproduct,itwassynthesizedintheunsaturatedpolyester,p-Hydroxycinnamicacidwasmadetoreactwiththedegradationproductinthedecompositioninthesaturatedhydroxycarboxylicacid,andtheunsaturatedpolyesterwasgot.Decompositionandsynthesisweredoneinthereactionofsamevesselinunsaturatedhydroxycarboxylicacidssuchasthepropyleneglycol-maleicanhydrideadduct,andtheunsaturatedpolyesterwasgot.APETbottlewastewasresolvedinpropyleneglycol-maleicanhydrideadduct(Mn=418,Mw=511)at240℃,for1hr,anddegradationproduct(Mn=928,Mw=1,622)wasgot.then,bycondensingfor2hour.at210℃,unsaturatedpolyester(Mn=3,148,Mw=8,797)wasgot.
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