Title:
LONG-GLASS-FIBER-REINFORCED THERMOPLASTIC RESIN MOLDING MATERIAL AND METHOD FOR PRODUCING THE SAME
Document Type and Number:
Japanese Patent JP3899263
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a long-glass-fiber-reinforced thermoplastic resin molding material which is freed from the problems in a conventional technique, does not suffer the troubles due to the fluff formed during the production, pneumatic conveying, and molding, and can give a molding freed from appearance defects because the glass filaments can be sufficiently dispersed when molded and to provide a method for producing the same.
SOLUTION: The resin molding material is a palletized or suitably shaped one composed of a matrix and a plurality of glass filaments having substantially the same lengths and a unidirectionally arranged therein in parallel, wherein the coefficient of variation of the diameters of the glass filaments is at most 13%. The method is one comprising coating or impregnating a glass fiber prepared by binding a plurality of continuous glass filaments with a molten thermoplastic resin and, after cooling, cutting the glass fiber to a specified length to form a palletized or suitably shaped material, wherein the glass fiber used is one in which the coefficient of variation of the diameters of the constituent glass filaments is at most 13%.
Inventors:
Takeshita Jun
Application Number:
JP2001396957A
Publication Date:
March 28, 2007
Filing Date:
December 27, 2001
Export Citation:
Assignee:
Owens Corning Manufacturing Co., Ltd.
International Classes:
B29B11/16; B29B9/02; B29B15/10; C08K7/14; C08L101/00; B29K309/08; (IPC1-7): C08L101/00; B29B11/16; C08K7/14; //B29K309:08
Domestic Patent References:
| JP6047740A | ||||
| JP6114830A | ||||
| JP11138534A | ||||
| JP9235419A | ||||
| JP2001192468A |
Attorney, Agent or Firm:
Masato Kobayashi