PROCESS FOR THERMOFORMING ACRYLIC POLYMER EMPLOYING FOAM AS A MOLD AND ARTICLE FORMED THEREFROM
摘要
<p>The present invention is directed to a process of thermoforming an acrylic polymer containing sheet by heating the sheet in a mold which comprises (a) a foam which would degrade if in contact with the heated sheet and (b) a thermal barrier which is intermediate the sheet and foam to prevent the foam from degrading. In many applications, the resulting article can be used without removal of the foam. Also, the foam can serve to protect the acrylic sheet such as during long distance shipping.</p>
申请公布号
EP2358515(A1)
申请公布日期
2011.08.24
申请号
EP20090771456
申请日期
2009.12.10
申请人
E. I. DU PONT DE NEMOURS AND COMPANY
发明人
PAPLHAM, WILLIAM, PATRICK;SAGRATI, JR., JOHN VICTOR;KING, TREVOR, R.;DOAK, PAUL, D.