Abstract: An object of the present invention is to provide a fiber-reinforced thermoplastic resin sheet which can be manufactured into a molded body exhibiting excellent appearance quality as well as exhibits both high moldability and strength and a manufacturing method of such a fiber-reinforced thermoplastic resin sheet. The present invention relates to a fiber-reinforced thermoplastic resin sheet which is a random laminated body of a tape-shaped unidirectional prepreg and contains spread reinforcement fibers and a polymer (a) and in which the polymer (a) is a polymer of at least a bisphenol A type epoxy compound represented by Formula (1): where n is an integer of 1 to 4 and a bisphenol compound selected from the group consisting of bisphenol A, bisphenol F, bisphenol S, bisphenol B, bisphenol E, and bisphenol P.
Type:
Grant
Filed:
June 28, 2019
Date of Patent:
March 14, 2023
Assignees:
SUNCORONA ODA CO., LTD., KANAZAWA INSTITUTE OF TECHNOLOGY
Abstract: The present invention provides a fiber-reinforced thermoplastic resin sheet having both high strength and moldability, to provide a unidirectional prepreg from which such a fiber-reinforced thermoplastic resin sheet can be acquired, and to provide a manufacturing method of a unidirectional prepreg. The present invention relates to a unidirectional prepreg having a tape shape comprising: spread reinforcement fibers; and a polymer of a bisphenol A type epoxy compound represented by Formula (1): [where n is an integer of 1 to 4] and a bisphenol compound selected from the group consisting of bisphenol A, bisphenol F, bisphenol S, bisphenol B, bisphenol E, and bisphenol P, wherein the polymer has a weight-average molecular weight of 5,000 to 25,000, and wherein the average content number of the reinforcement fibers in a thickness direction of the unidirectional prepreg is ten or less.