INCREASING THE MELT VISCOSITIES OF A POLYESTER RESIN
摘要
The invention relates to a process for increasing the melt viscosities of polyester resins. This process comprises a step of heating the polyester resin in the temperature range comprised between the melting temperature of the polyester resin and the degradation temperature of the polyester resin with the addition of at least one modifier compound which has at least three glycidyl side chains. The improved polyester resins, having such improved properties, are used for the production of polyester foamed materials.
申请公布号
WO0029470(A1)
申请公布日期
2000.05.25
申请号
WO1999CH00536
申请日期
1999.11.12
申请人
ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE;MANSON, JAN-ANDERS, E.;LETERRIER, YVES;JAPON, SONIA