Gasket material formed of felt containing polyethylene terephtha

Details Gasket material formed of felt containing polyethylene terephtha Gasket material formed of felt containing polyethylene terephtha

1976-09-20

1978-07-04

Bell, James J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428296, 428480, D04H 108

Patent

active

040989429

ABSTRACT:
Felt gasket material comprising polyethylene terephthalate fibers and suitable for use in luminaires is provided with improved compression recovery properties at elevated operating temperatures of the luminaire by heating the gasket material preferably in the range of 160.degree. C to 200.degree. C for a sufficient time to heat-set the fibers.

REFERENCES:
patent: 2908064 (1959-10-01), Lauterbach et al.
patent: 2910763 (1959-11-01), Lauterbach
patent: 2958113 (1960-11-01), Lauterbach
patent: 4029955 (1977-06-01), Tart

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