摘要:
Laminates are essentially composed of(A) a thermoplastic which is stable at high temperatures and is based on polyarylethersulfones, polyaryletherketones, polyetherimides or thermotropic polymers and(B) a metallic foil which is applied directly to the said polymers and whose surface area has been increased by chemical or mechanical treatment,the side having an increased surface area facing the thermoplastic which is stable at high temperatures, and the adhesion between the metallic foil (B) and the thermoplastic (A) which is stable at high temperatures being not less than 1.9 N/mm, measured at a peeling speed of 20 mm/min and a peeling angle of 180.degree..
摘要翻译:层压体基本上由(A)在高温下稳定并基于聚芳醚砜,聚芳醚酮,聚醚酰亚胺或热致聚合物的热塑性塑料组成,和(B)直接施加到所述聚合物上并且其表面积增加的金属箔 通过化学或机械处理,具有面向热塑性的表面积增加的一侧在高温下是稳定的,金属箔(B)和在高温下稳定的热塑性塑料(A)之间的粘合力不小于1.9 N / mm,剥离速度为20mm / min,剥离角为180°。
摘要:
Highly heat-resistant polyaryl ether ketones are composed of(A) from 50 to 100 mol % of repeat units of the general formula I ##STR1## or a ring-substituted C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -alkoxy, aryl, chlorine or fluorine derivative thereof and(B) from 0 to 50 mol % of repeat units, different from I, of the general formulae II and/or III ##STR2## or a ring-substituted C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -alkoxy, aryl, chlorine or fluorine derivative thereof, where Q, Q', Y, Y', T, T', Z and Z' are each --O--, --CO-- or a chemical bond, one or more of these substituents is a --CO-- group, and s, t and u are each 0 or 1.
摘要:
A circuit board substrate of good thermal conductivity comprises a composite formed from(A) an electrically and thermally insulating plastic and(B) a plastic incorporating a thermally highly conductive filler.
摘要:
The long-term stability of the electrical conductivity of pyrrole polymers is improved by a process in which the polymers are treated with an aqueous acid. Pyrrole polymers treated in this manner are used as conductor elements in the electrical industry.
摘要:
A film of an electrically conductive polymer consists of(A) a layer I which is treated on one side with an aqueous acid and contains incorporated counterions and whose thickness is 1-60% of the total thickness of the film, and(B) an electrochemically reversible oxidizable layer II whose thickness is 40-99% of the total thickness of the film.
摘要:
Thermoplastic molding materials based on impact resistant styrene polymers and polyphenylene ethers containing a hydrocarbon wax having a melt viscosity of less than 500 centistokes at 120.degree. C.
摘要:
Apparatus for determining the stress-strain characteristics of materials in the viscoelastic state, especially polymer melts, in which a bar-shaped test specimen arranged vertically in a thermostable bath is stretched by means of a tape attached to a motor-driven reel and the tensile forces are continuously measured by a load cell arranged below the specimen and within the bath.
摘要:
A process for the surface treatment of moldings based on liquid crystalline polymers with acidic or alkaline reagents includes using the reagents in a solvent which is an organic solvent to an extent of not less than 60% by weight.
摘要:
In a solid-state capacitor comprising a positive and a negative electrode, a dielectric medium and a solid electrolyte, the solid electrolyte contains an electroconductive polymer as essential constituent.
摘要:
In a composite electrode whose active electrode material contains an electrochemically chargeable and dischargeable polymer which is bonded to a conductor, the adhesive contains a finely divided electrically conductive substance.