Title:
FIBER-REINFORCED PLASTIC
Document Type and Number:
Japanese Patent JP3670414
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent the epoxy groups of an epoxy sizing agent for reinforced fibers from reacting with and deactivating the catalyst in an RIM nylon when the nylon is reaction-injection-molded by adhering a specified metal compound to the surface of the sizing agent.
SOLUTION: Reinforcing fibers 2 surface-treated with an epoxy sizing agent 4 are immersed in an alcoholic metal alkoxide solution 6 to adhere the metal alkoxide 5 to the surface of the agent 4. The reinforced fibers 2 are inserted into the cavity of a mold for reaction injection molding and heated to react the epoxy groups with the metal alkoxide to open the epoxy rings and to form a metal compound which does not interfere with the polymerization of the nylon. RIM nylon is then poured into the cavity 7a and polymerized into a solid product.
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Inventors:
Takaaki Ishida
Kunio Niwa
Kunio Niwa
Application Number:
JP26629896A
Publication Date:
July 13, 2005
Filing Date:
October 07, 1996
Export Citation:
Assignee:
Sumitomo Rubber Industries, Ltd.
International Classes:
C08J5/06; B29C45/00; D06M13/144; B29K77/00; (IPC1-7): C08J5/06; B29C45/00
Domestic Patent References:
| JP3006237A | ||||
| JP4185765A | ||||
| JP4241917A | ||||
| JP7299875A | ||||
| JP9227694A |
Attorney, Agent or Firm:
Kazumi Owada