Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber
Reexamination Certificate
2005-08-23
2005-08-23
Dye, Rena (Department: 1774)
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Rod, strand, filament or fiber
C428S375000, C501S035000, C501S095100
Reexamination Certificate
active
06933045
ABSTRACT:
Provided are a heat-resistant glass fiber which has excellent heat resistance, which is also easy to spin and less expensive and which is suitable as an acoustic material for use in an automobile muffler, and a process for the production thereof. The heat-resistant glass fiber has a composition comprising, substantially by weight %, 56 to 58.5% of SiO2, 12 to 17% of Al2O3, 16 to 27% of CaO, 1 to 9% of MgO, 0 to 1% of Na2O and 0 to 1% of K2O as the entirety of the fiber and containing neither B2O3nor F2, and has a surface layer portion made of a silicic glass having an SiO2content of at least 90% by weight. The process comprises treating the surface of the above fiber having the above composition with a mineral acid, to produce the heat-resistant glass fiber.
REFERENCES:
patent: 2334961 (1943-11-01), Schoenlaub
patent: 3402055 (1968-09-01), Harris et al.
patent: 3847626 (1974-11-01), Erickson et al.
patent: 3847627 (1974-11-01), Erickson et al.
patent: 4542106 (1985-09-01), Sproull
patent: 5789329 (1998-08-01), Eastes et al.
patent: 5-147975 (1993-06-01), None
Dye Rena
Ferguson Lawrence
Nitto Boseki Co. Ltd.
Nixon & Vanderhye P.C.
LandOfFree
Heat-resistant glass fiber and process for the production... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Heat-resistant glass fiber and process for the production..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heat-resistant glass fiber and process for the production... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3523239