Title:
PRODUCTION OF WATER RESISTANT HIGH BORATE GLASS FIBER AND WATER RESISTANT HIGH BORATE GLASS FIBER
Document Type and Number:
Japanese Patent JP3965533
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To efficiently produce a high borate glass fiber having a low dielectric const and excellent water resistance by heat treating a high borate glass fiber containing a specified amt. of B2O3 at a specified temp. and surface treating the fiber with a silane coupling agent.
SOLUTION: A high borate glass fiber containing SiO2 and B2O3 as the component which forms the structure of the glass and having 15 to 40 wt.% B2O3 content is heat treated at 300 to 650°C for 30 sec to 73 hours. By the heat treatment, strain in the glass fiber due to rapid cooling during spinning is eliminated and the water resistance of the fiber is improved. The surface of the glass fiber after the heat treatment is treated with a silane coupling agent to deposit 0.02 to 0.5 wt.% of the agent. As for the form of the glass fiber, glass roving, chopped strand, yarn, glass mat, milled fiber, and glass cloth can be used, and among these, chopped strand and glass cloth are preferably used.
Inventors:
Morisama Matsumoto
Koichi Matsumoto
Yoshiharu Suzuki
Koichi Matsumoto
Yoshiharu Suzuki
Application Number:
JP23213697A
Publication Date:
August 29, 2007
Filing Date:
August 28, 1997
Export Citation:
Assignee:
Nitto Boseki Co., Ltd.
International Classes:
C03B37/12; C08J5/04; C03B37/10; C03B37/16; C03C25/10; C03C25/40; C08J9/06; H05K1/03; (IPC1-7): C03B37/12; C03C25/02; C08J9/06; //C08J5/04; H05K1/03
Domestic Patent References:
| JP9074255A | ||||
| JP1301539A |
Attorney, Agent or Firm:
Shizuo Nakamura