The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 13, 1993
Filed:
Jun. 13, 1991
The Japan Steel Works, Ltd., Tokyo, JP;
Abstract
A method of producing fiber reinforced plastic moldings. The method includes the steps of: supplying a thermosetting resin component and a thermoplastic resin component into a twin screw extruder; kneading the thermosetting resin component and the thermoplastic resin component into each other in the extruder to produce a fused material in which fine particles of the thermoplastic resin component are micro-dispersed in a matrix of the thermosetting resin component; suppling a liquid monomer into the extruder so that the liquid monomer is mixed with the fused material so as to adjust the viscosity of the fused material to be low; suppling a reaction initiator into the extruder so that the reactive initiator is mixed with the fused material at a temperature not higher than a reaction initiation temperature so as to produce a reactive kneaded material; continuously discharging the reactive kneaded material from a die of the extruder so as to apply the reactive kneaded material onto a long fiber mat; simultaneously pressing and cooling the mat coated with the reactive kneaded material to shape the mat into a sheet; cutting the sheet into pieces having a predetermined length; shaping and curing the thus cut pieces into moldings of a desired form by means of a press molding machine.