Title:
CONTINUOUS GLASS FIBER WITH IMPROVED THERMAL RESISTANCE
Document Type and Number:
WIPO Patent Application WO2003050049
Kind Code:
A3
Abstract:
The invention relates to a glass fiber, especially a continuous glass fiber, exhibiting improved thermal behavior. According to the invention, the glass fiber consists of SiO2 56.0 62.0 %, A12O3 11.0 -15,0 %, CaO 20.0 - 24,5 %, TiO2 2.0 3.2 %, MgO 0.2 0.4 %, Na2O 0.05 0.2 %, K2O 0 0.25 %, Fe2O3 0.11 0.3 %, SO3 0.01 0.05 %. The retraction value of the fiber is less than 20 % at 800 °C and/or less than 80 % at 850°. The inventive fiber is produced according to a method wherien the difference between the glass melt liquidus temperature and the fiber formation temperature is the same as or greater than 95 °C. The fiber can be used as filling material in sound absorbers for waste gases, in the production of shaped bodies and in the production of nets, fabrics or knitted fabrics.
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Inventors:
KRAVCHENKO IRYNA (DE)
ERICKSON TOM (US)
ERICKSON TOM (US)
Application Number:
PCT/DE2002/004485
Publication Date:
September 04, 2003
Filing Date:
December 04, 2002
Export Citation:
Assignee:
DBW FIBER NEUHAUS GMBH (DE)
KRAVCHENKO IRYNA (DE)
ERICKSON TOM (US)
KRAVCHENKO IRYNA (DE)
ERICKSON TOM (US)
International Classes:
C03B37/07; C03B37/02; C03C13/00; C03C13/02; (IPC1-7): C03C13/00
Domestic Patent References:
| WO2002020419A1 | 2002-03-14 |
Foreign References:
| US4026715A | 1977-05-31 | |||
| GB1391384A | 1975-04-23 | |||
| US4542106A | 1985-09-17 | |||
| US3876481A | 1975-04-08 | |||
| US3847626A | 1974-11-12 | |||
| US3847627A | 1974-11-12 |
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