EP 1390313 A1 20040225 - REINFORCING GLASS YARNS WITH LOW DIELECTRIC CONSTANTS
Title (en)
REINFORCING GLASS YARNS WITH LOW DIELECTRIC CONSTANTS
Title (de)
VERSTÄRKUNGSGLASFASERN MIT NIEDRIGER DIELEKTRIZITÄTKONSTANTE
Title (fr)
FILS DE VERRE DE RENFORCEMENT A FAIBLES CONSTANTES DIELECTRIQUES
Publication
Application
Priority
- FR 0201509 W 20020502
- FR 0106859 A 20010523
Abstract (en)
[origin: WO02094728A1] The invention concerns a glass yarn whereof the composition comprises the following constituents in the limits defined, expressed in weight percentages: SiO2 50 to 60 %, preferably SiO2 >/= 52 % and/or SiO2 </= 57 %; Al2O3 10 to 19 %, preferably Al2O3 >/= 13 % and/or Al2O3 </= 17 %; B2O3 16 to 25 %; P2O50.5 to 4 %; Na2O </= 1.5 %, preferably Na2O </= 0.8 %; K2O </= 1.5 %, preferably K2O </= 0.8 %; R2O </= 2 %, preferably R2O </= 1 %; CaO </= 10 %; MgO </= 10 %; F </= 0 to 2 %; RO 4 to 15 %, preferably RO >/= 6 % and/or RO </= 10 % ; miscellaneous </= 3 % ; wherein R2O = Na2O + K2O + Li2O and RO = CaO + MgO. The dielectric properties of said glass compositions are particularly advantageous.
IPC 1-7
IPC 8 full level
C03C 3/118 (2006.01); C03C 13/00 (2006.01); H05K 1/03 (2006.01)
CPC (source: EP US)
C03C 3/118 (2013.01 - EP US); C03C 13/00 (2013.01 - EP US); H05K 1/0366 (2013.01 - EP US); Y10T 428/249947 (2015.04 - EP US); Y10T 428/2933 (2015.01 - EP US)
Citation (search report)
See references of WO 02094728A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 02094728 A1 20021128; CN 1511120 A 20040707; EP 1390313 A1 20040225; FR 2825084 A1 20021129; FR 2825084 B1 20030718; JP 2004525066 A 20040819; MX PA03010595 A 20040309; RU 2003136776 A 20050527; US 2004175557 A1 20040909
DOCDB simple family (application)
FR 0201509 W 20020502; CN 02810477 A 20020502; EP 02730379 A 20020502; FR 0106859 A 20010523; JP 2002591405 A 20020502; MX PA03010595 A 20020502; RU 2003136776 A 20020502; US 47861604 A 20040416