Verwendung von Formmassen aus Polyethylenterephthalat und einem organischen Imid zur Herstellung von kristallinen Formkörpern durch Spritzguss bei niedriger Formtemperatur
申请人:BAYER AG
公开号:EP0029930A1
公开(公告)日:1981-06-10
Polyethylenterephthalate mit einem Gehalt bestimmter Imide lassen sich bei Formtemperaturen von 80 bis 120° zu kristallinen Formkörpern verspritzen.
含有某些酰亚胺的聚对苯二甲酸乙二醇酯可在 80 至 120° 的成型温度下注入,形成结晶模塑件。
Flammwidrige Formmassen auf Basis von Polyethylenterephthalat, Verfahren zu ihrer Herstellung und ihre Verwendung zur Herstellung von Formkörpern
申请人:BAYER AG
公开号:EP0030618A1
公开(公告)日:1981-06-24
Formmassen auf Basis von Polyethylenterephthalat, Flammschutzmittel und eines bestimmten Pfropfpolymerisats zeigen eine verminderte Tropfneigung im Brandfall.
以聚对苯二甲酸乙二醇酯、阻燃剂和某种接枝聚合物为基础的模塑化合物在起火时的滴落趋势有所减弱。
Polyester thermoplastic molding compositions with good mold release
申请人:MOBAY CORPORATION
公开号:EP0146104A2
公开(公告)日:1985-06-26
The present disclosure is concerned with reinforced flame retarded polyethylene terephthalate molding compositions which have good mold release properties upon being injection molded because they contain low molecular weight copolymer acids which may have been neutralized with selected metal cations. If these copolymer acids are used in sufficient amount they may also act as drip suppressant agents thus allowing the compositions to reproducibly obtain a UL-94 rating at 1/32" of V-0. When used in lower amounts in combination with other drip suppressants these low molecular weight copolymer acids provide both enhanced mold release and enhanced drip suppression. These compositions contain a flame retardant package sufficient to give the base polyethylene terephthalate resin a UL-94 rating at ⅛" of V-0 when tested with just the flame retardant package. These compositions are preferably reinforced with glass or other fibers. The addition to these compositions of a compound bearing at least 3 terminal epoxy groups can improve the composition's physical properties and does improve their resistance to degradation due to thermal or hydrolysis exposure. These compositions are suitable for the injection molding of a wide variety of articles of commerce.