Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1985-10-31
1987-07-07
Kight, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
524437, 524438, 524514, 427177, 428288, 162151, 162152, 162156, 1621571, 1621573, 1621574, 1621576, 162159, 162161, C04B 4300, C04B 4312, C09K 328, A01N 2534
Patent
active
046788220
ABSTRACT:
A bonded fibre insulation batt is produced by ragging, teasing and otherwise doffering fibres of wool and/or synthetic or other natural fibres such as monoacrylic, acrylic, polyamide, polyester or cotton fibres, so as to form a sliver with said fibres randomly dispersed. The sliver is passed through a lapper which causes the sliver to lap on itself to form a mat of desired thickness. The sliver is sprayed with a resin emulsion prior to lapping so that the mat produced is throughly impregnated. The resin emulsion can include a fireproofing resin, and preferably a pesticide and a smoke retardant. The impregnated mat passes to a dryer to remove a substantial part of the water content thereof with minimal heating of the fibres. Following the water removal the mat passes to an oven to cure the resin thus forming the insulating batt which can be cut to desired size.
REFERENCES:
patent: 2054131 (1936-09-01), Kolleck
patent: 2527628 (1950-10-01), Francis, Jr.
patent: 4340579 (1982-07-01), Greber et al.
Kaddis George
Kight John
Lane Maxwell Victor
Nutter Nathan M.
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