Title:
PRODUCTION OF THERMOPLASTIC COMPOSITE MATERIAL
Document Type and Number:
Japanese Patent JP3391408
Kind Code:
B2
Abstract:
PURPOSE: To inexpensively and efficiently obtain a thermoplastic composite material excellent in impregnation properties at a high speed by impregnating a reinforcing fiber with a thermoplastic resin in an impregnation die and pressing and compressing a molten thermoplastic composite material outside the impregnation die.
CONSTITUTION: A bundle of reinforcing fibers 4 are passed through an impregnation die 5 to receive the supply of a molten resin 3 to become a molten thermoplastic composite material 6. Next, the impregnated bundle passes through the gaps between two or more sets of compression rollers consisting of cooling drive rollers 8 cooled by cooling water or cooling air 10 and pressure cooling rollers 9 to receive strong compression force and the molten thermoplastic resin flows in the gaps between the monofilaments of the reinforcing fibers to accelerate the impregnation of the bundle. At the same time, the molten thermoplastic composite material is gradually cooled and solidified while it is deformed to the cross-sectional shape along the shapes of the rollers to become a thermoplastic composite material 7 which is, in turn, taken up by a taking-up roller 11.
Inventors:
Akinori Nakajima
Yoshinori Takahashi
Yoshinori Takahashi
Application Number:
JP5720893A
Publication Date:
March 31, 2003
Filing Date:
March 17, 1993
Export Citation:
Assignee:
TOYO BOSEKI KABUSHIKI KAISHA
International Classes:
B29B11/16; B29B15/10; B29C70/06; B29K105/08; (IPC1-7): B29C70/06; B29B11/16; B29B15/10
Domestic Patent References:
| JP462111A | ||||
| JP63132036A |