Title:
FLEXIBLE DUCT INSULATION HAVING IMPROVED FLAME RESISTANCE
Document Type and Number:
WIPO Patent Application WO2001069115
Kind Code:
A3
Abstract:
A flame resistant insulation product comprises a fibrous mineral material that has been rotary fiberized, preferably a fibrous glass. The composition of the mineral material has a softening point of at least about 699 DEG C (1290 DEG F). An insulated duct includes a tubular wall that defines a hollow interior for conducting a fluid, and a layer of the insulation product wrapped about the wall. The mineral material reduces the number of samples of the insulated duct failing the flame penetration test of a UL 181 Standard compared to the same insulated duct with a mineral material having a softening point of less than 699 DEG C (1290 DEG F).
Inventors:
AUBOURG PATRICK F (US)
Application Number:
PCT/US2000/032505
Publication Date:
July 11, 2002
Filing Date:
November 29, 2000
Export Citation:
Assignee:
OWENS CORNING FIBERGLASS CORP (US)
AUBOURG PATRICK F (US)
AUBOURG PATRICK F (US)
International Classes:
C03C13/00; C09K21/02; D04H13/00; (IPC1-7): F16L59/14; C03C13/06
Domestic Patent References:
| WO1989012032A2 | 1989-12-14 |
Foreign References:
| US5616525A | 1997-04-01 | |||
| US4615988A | 1986-10-07 |
Other References:
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 02 30 January 1998 (1998-01-30)
DATABASE WPI Week 34, 1977 Derwent World Patents Index; AN 1977-60195Y, XP002186814
DATABASE WPI Week 34, 1977 Derwent World Patents Index; AN 1977-60195Y, XP002186814
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