Material for FRTP molded objects and FRTP tubular molded object

Details Material for FRTP molded objects and FRTP tubular molded object Material for FRTP molded objects and FRTP tubular molded object

1998-07-02

2000-09-05

Cole, Elizabeth M.

Stock material or miscellaneous articles

Sheets or webs edge spliced or joined

428172, 428192, 428194, 4282977, 4282981, 4283007, B32B 2712

Patent

active

061140007

ABSTRACT:
A ribbon-shaped material for FRTP molded objects 1 having a laminate 4 in which a ribbon-shaped reinforcing fiber tow 2 is placed between thermoplastic resin films for supplying matrix resin which are wider than the ribbon-shaped reinforcing fiber tow 2, and in which the thermoplastic resin films 3,3 are fused in side portions 5,5 of the laminate 4, which are along the longitudinal direction of the laminate 4; and a wide material for FRTP molded objects 30,40 obtained by arranging a plurality of the ribbon-shaped materials for FRTP molded objects 1 whereby adjacent ribbon-shaped materials for FRTP molded objects 1,1 overlap each other in a manner such that the side portion 5 of one of the adjacent ribbon-shaped materials for FRTP molded objects 1 is placed on the side portion 5 or the middle portion 6 of the other along the longitudinal direction, and fusing together each overlapping portion 31,41 of the ribbon-shaped materials for FRTP molded objects 1, whereby the reinforcing fiber tows 2 are arranged in parallel; are advantageous in providing excellent impregnation of the reinforcing fiber with the thermoplastic resin, giving a great freedom of design, providing easy handling, creating no fuzz of the reinforcing fiber, and being flexible. Using such a material for FRTP molded objects 1,30,40, an inexpensive FRTP tubular molded object having a superior strength can be produced.

REFERENCES:
patent: 4997693 (1991-03-01), Sonoh et al.
patent: 5496602 (1996-03-01), Wai

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