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. 09, 2024
Filed:
Jan. 19, 2018
Toray Industries, Inc., Tokyo, JP;
Toray Industries, Inc., Tokyo, JP;
Abstract
Provided are methods for producing a fiber-reinforced plastic having high mechanical properties and high productivity during molding of a complicated shape. In one aspect, the method produces a fiber-reinforced plastic using a tape substrate A and a sheet substrate B, the tape substrate A being a tape-shaped substrate including one or more sheets of incised prepreg a; the incised prepreg a being a prepreg including unidirectionally oriented reinforcing fibers and a resin and having a plurality of incisions dividing the reinforcing fibers formed in the prepreg, and satisfying the following condition 1; the sheet substrate B being a substrate including randomly oriented reinforcing fibers and a resin. In another aspect, the method for producing a fiber-reinforced plastic includes: a placement step \ (A) of placing a plurality of tape substrates A on a mold such that each of the sheet substrates A forms an overlapping portion in which the sheet substrate A overlaps one or more other sheet substrates A and a non-overlapping portion in which the sheet substrate A does not overlap any other sheet substrates A, a placement step (B) of placing a sheet substrate B, and a molding step of heating and pressing the tape substrates A and the sheet substrate B placed. Condition 1 is: the average length xa of the incisions and the average length ya of the reinforcing fibers divided by the incisions satisfy ya>6.0xa+10.