Manufacture of aqueous suspensions of polyolefin fibrids

Details Manufacture of aqueous suspensions of polyolefin fibrids Manufacture of aqueous suspensions of polyolefin fibrids

1974-09-03

1976-06-01

Tillman, Murray

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

162146, 162157R, 162167, 260 294UA, 260 676R, 428502, D21D 300, C08L 2306, C08L 6132

Patent

active

039607941

ABSTRACT:
A process for the manufacture of nonfoaming aqueous suspensions of polyolefin fibrids using suitable dispersing agents. These are obtained by polycondensation of 1 mole of melamine, from 1.8 to 3 moles of formaldehyde and from 0.1 to 0.5 molar portions of amino carboxylic acids or alkali metal salts thereof. Very small quantities of said dispersing agents are sufficient to finely disperse the hydrophobic polyolefin fibrids in water and to prevent the formation of foam in the manufacture of web structures of a paper-like and textile-like nature. The aqueous suspensions of polyolefin fibrids may also contain cellulose fibers.

REFERENCES:
patent: 2680682 (1954-06-01), Dearing
patent: 3479247 (1969-11-01), Bonzagni
patent: 3501429 (1970-03-01), Bonzagni
patent: 3630831 (1971-12-01), Jongetjes
patent: 3721651 (1973-03-01), Yates
patent: 3753934 (1973-08-01), Diethelm et al.
patent: 3755220 (1973-08-01), Freimark et al.

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