Glass fibre for the reinforcement of organic and/or...

Details Glass fibre for the reinforcement of organic and/or... Glass fibre for the reinforcement of organic and/or...

2004-03-10

2009-11-03

Group, Karl E (Department: 1793)

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

C501S035000, C501S067000

Reexamination Certificate

active

07612002

ABSTRACT:
Glass reinforcement strand, the composition of which comprises the following constituents, within the limits defined below, expressed as percentages by weight:SiO250 to 60%, preferably SiO2≧ 52% and/or SiO2≦ 57%;Al2O310 to 19%, preferably Al2O3≧ 13% and/or Al2O3≦ 17%;B2O316 to 25%;ZrO20.5 to 1.5%;Na2O≦1.5%, preferably Na2O ≦ 0.8%;K2O≦1.5%, preferably K2O ≦ 0.8%;R2O≦2%, preferably R2O ≦ 1%;CaO≦10%;MgO≦10%;F0 to 2%;TiO20 to 3%;RO4 to 15%, preferably RO ≧ 6% and/or RO ≦ 10%; andVarious≦3%,where R2O = Na2O + K2O + Li2O, and RO = CaO + MgO.The dielectric properties of such glass compositions are particularly advantageous in the MHz and GHz ranges.

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patent: 2004/0175557 (2004-09-01), Creux et al.
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Derwent Abstract 1999-620333, Abstract of EP 1086930A1 and US 6846761. Mar. 28 2001.
U.S. Appl. No. 10/592,732, filed Sep. 14, 2006, Creux et al.
U.S. Appl. No. 10/592,945, filed Sep. 15, 2006, Creux et al.
U.S. Appl. No. 10/129,265, filed Sep. 30, 2002, Creux et al.

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