Title:
チョップドストランドの製造方法
Document Type and Number:
Japanese Patent JP4974675
Kind Code:
B2
Abstract:
It is to provide a process for producing chopped strands capable of giving a molded product of which the mechanical strength and the water resistance are not impaired and of which the color tone is not deteriorated, capable of providing favorable dispersibility of glass fibers in molding material pellets, and being excellent in the releasability at the time of molding, and a fiber-reinforced polyamide resin molding material using the chopped strands. Glass fiber strands consisting of glass filaments spun from a bushing are subjected to a surface treatment with a sizing agent comprising, in terms of solid content, 100 parts by mass of an unsaturated copolymer of maleic anhydride with an unsaturated monomer, from 10 to 90 parts by mass of a polyurethane resin and from 5 to 100 parts by mass of a silane coupling agent, and then the obtained strands are chopped.
Inventors:
Yoshino Shinno
Kenichiro Masushima
Kenichiro Masushima
Application Number:
JP2006511510A
Publication Date:
July 11, 2012
Filing Date:
March 24, 2005
Export Citation:
Assignee:
Owens Corning Manufacturing Co., Ltd.
International Classes:
C03B37/16; C03C25/10; C03C17/30; C03C17/32; C08J5/04; C08K9/08; D06H7/00; D06M13/513; D06M15/568
Domestic Patent References:
| JP2003519077A | ||||
| JP2003201671A | ||||
| JP2000281391A | ||||
| JP6128479A |
Attorney, Agent or Firm:
Kenji Izumina
Toshiharu Ogawa
Ryozo Yamamoto
Toshiharu Ogawa
Ryozo Yamamoto