Method and additives for imparting antistatic properties to poly

Details Method and additives for imparting antistatic properties to poly Method and additives for imparting antistatic properties to poly

1973-04-11

1976-08-31

Garvin, Patrick P.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260 78A, 260468J, 260471R, 260482R, 260514R, 260519, 260534M, 57157AS, 252 875, 252 88, 260509, 260513N, 260503, C07C10104

Patent

active

039780988

ABSTRACT:
An antistatic additive for polyamide compositions and articles is disclos which can be concisely defined as a "polyoxyalkylated aminoacid." This class of compounds is preferably prepared by placing the selected aminoacid in the presence of the selected oxyalkylene, in suspension in a liquid medium. The latter is preferably an organic solvent for the polyoxyalkylene, but is a nonsolvent for the aminoacid as such. The polyoxyalkylation is encouraged by the presence of an alkali metal salt of the aminoacid: the sodium salt is preferred. The compounds so prepared have an unpredictably high degree of emulgability towards the polyamides so that a completely satisfactory dispersion of the novel additives in the polyamides can be achieved. Examples of amino-acids are omega-aminododecanoic, omega-aminoundecanoic, epsilon-aminocapronic, (also known as epsilon-aminocaproic) sulphanilic, para-aminobenzoic, 2-aminoethanesulphonic and aminoacetic acids.
Examples of oxyalkylenes are oxyethylene and oxypropylene.

REFERENCES:
patent: 2602087 (1952-07-01), DeGroore
patent: 2677700 (1954-05-01), Jackson et al.
patent: 2881204 (1959-04-01), Kirkpatrick
patent: 2943099 (1960-06-01), Dohr et al.
patent: 2965658 (1960-12-01), Kirkpatrick
patent: 3040076 (1962-06-01), Seidel et al.
patent: 3398163 (1968-08-01), Meyers et al.
patent: 3414550 (1968-12-01), D'Alelio
patent: 3692819 (1972-09-01), Carney et al.

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