Search International and National Patent Collections

1. (WO2017038240) GLASS CLOTH

Pub. No.:    WO/2017/038240    International Application No.:    PCT/JP2016/069882
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Wed Jul 06 01:59:59 CEST 2016
IPC: D03D 15/12
C08J 5/24
D03D 1/00
H05K 1/03
Applicants: UNITIKA LTD.
ユニチカ株式会社
UNITIKA GLASS FIBER CO., LTD.
ユニチカグラスファイバー株式会社
Inventors: MIYAZAKI, Takaharu
宮崎 崇治
SAKITANI, Kazutaka
崎谷 一貴
NISHINAKA, Daisuke
西中 大介
HATTORI, Kohji
服部 剛士
FUJII, Minoru
藤井 実
Title: GLASS CLOTH
Abstract:
Provided is a glass cloth that can be made thin with a thickness of 14 µm or less and with which occurrences of pinholes can be suppressed when forming a thin prepreg with, for example, a thickness of 20 µm or less. The glass cloth satisfies the following (i) - (iv). (i) Degree of opening is 70 - 90% for the warp and 95 - 120% for the weft. (ii) Either the gap spacing between adjacent warps or the gap spacing between adjacent wefts is 100 µm or less. (iii) Thickness as measured according to JIS R 3420: 2013, 7.10.1 is 14 µm or less. (iv) Cloth mass measured according to JIS R 3420: 2103, 7.2 is 11 g/m2 or less.