Patent ID: 11938655
Assignee: TORAY INDUSTRIES, INC.
Field: Other special machines (Mechanical engineering)
Classification: CPC B  C  Y | IPC B  C

Claim 6:
7. A method for producing the tape-shaped prepreg according to claim 1 which comprises:
putting a thermoplastic resin composition in a molten state into a tank having an inlet portion and an outlet portion,
introducing a plurality of continuous reinforcing fibers from the inlet portion of the tank so that they are impregnated with the resin composition, and
causing the thermoplastic resin composition and the plurality of continuous reinforcing fibers to exit through the outlet portion of the tank and then pass through a cooling mechanism to produce a tape-shaped prepreg,
wherein the following relation (A) holds between Pc and Qp, wherein Pc [W] is the heat absorbing capacity of the cooling mechanism and Qp [m3/s] is the volume of the tape-shaped prepreg passing through the cooling mechanism in one second:

2.8×108≤Pc/Qp≤23.2×108   (A).