Bonding fibrillated polypropylene smoke filter with ethylene-vin

Details Bonding fibrillated polypropylene smoke filter with ethylene-vin Bonding fibrillated polypropylene smoke filter with ethylene-vin

1979-07-26

1981-06-16

Ball, Michael W.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156296, 493 50, A24C 550

Patent

active

042736005

ABSTRACT:
The invention relates to the treatment of fibre, particularly for making rods of bonded, fibrillated polyolefin fibre which can be used for example as or in tobacco smoke filters. The fibres may be crimped or straight and are bonded with a polymeric or copolymeric bonding agent which is applied to the fibres without the application of heat, the bonding agent being in the form of a cold setting emulsion, applied for example by means of a shear cone rotating at high speed or by brush means, the treated fibres then being formed to shape and allowed to cure in normal conditions and in the absence of heating.

REFERENCES:
patent: 3173427 (1965-03-01), Tamblyn et al.
patent: 3359148 (1967-12-01), Fukui
patent: 3390039 (1968-06-01), Caughman et al.
patent: 3463688 (1969-08-01), Harrington, Jr. et al.

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