Pitney Hardin LLP
Heat resistant resin composition, a heat resistant film or sheet thereof and a laminate comprising the film or the sheet as a susbstrate
A heat resistant resin composition comprising 70 to 30 wt % of a crystalline polyarylketone resin having a peak crystalline melting temperature of 260&deg; C. or higher and 30 to 70 wt % of a noncrystalline polyetherimide resin, wherein said composition has at least 2 peaks of loss tangent (tan &dgr;) between 140&deg; C. and 250&deg; C., determined by dynamic mechanical measurement.
Mitsubishi Plastics, Inc.
H Y H C C
H05K Y10T H05K C08L C08L
additional additional additional inventional inventional
Kouichirou Shingetsu
Taniguchi Yamada