초록 ▼

A process to form a fiber-reinforced prepreg and shaped objects having a continuous thermoplastic matrix of poly(arylene sulfide ketone) resins is provided. The prepreg is useful to form composites with high temperature resistance. The prepreg is prepared by pultrusion of resin-impregnated fiber rei

A process to form a fiber-reinforced prepreg and shaped objects having a continuous thermoplastic matrix of poly(arylene sulfide ketone) resins is provided. The prepreg is useful to form composites with high temperature resistance. The prepreg is prepared by pultrusion of resin-impregnated fiber reinforcement through a shaped die. The reinforcement can be impregnated from a liquid slurry or resin particles and a wetting agent.

대표청구항 ▼

A process comprising: a. providing a supply of high molecular weight poly(arylene sulfide ketone) resin, as characterized below by inherent viscosity, Tg and Tm, in form of particles, said resin having an inherent viscosity greater than 0.55 dl/g, a glass transition temperature, Tg, in the range of

A process comprising: a. providing a supply of high molecular weight poly(arylene sulfide ketone) resin, as characterized below by inherent viscosity, Tg and Tm, in form of particles, said resin having an inherent viscosity greater than 0.55 dl/g, a glass transition temperature, Tg, in the range of from 125°to 165°C., and a melting temperature, Tm, in the range of from 300°to 500°C., a measureable melt flow rate of less than about 1000 g/10 minutes, and a calcium content from about 50 to about 10,000 ppm by weight based on elemental calcium, said particles being suspended in a slurry liquid to form a slurry, b. providing a supply of a reinforcement in continuous form selected from the group consisting of a strand, a roving and a yarn, the fiber of which is stable at the melting temperature of said resin, c. impregnating the reinforcement with said particles by passing said reinforcement through the slurry to form a resin-impregnated reinforcement, d. heating the resin-impregnated reinforcement to a temperature sufficient to evaporate the slurry liquid and to soften the resin, e. subjecting the heated resin-impregnated reinforcement to a compressive force to consolidate the resin and the fiber reinforcement to form a fiber-reinforced continuous thermoplastic matrix, and f. cooling said matrix to a temperature below the softening temperature of the resin.