Salt resistant polyamide composition

Details Salt resistant polyamide composition Salt resistant polyamide composition

C - Chemistry, Metallurgy

08

L

400/3077, 400/42

C08L 77/00 (2006.01) C08K 5/16 (2006.01) C08K 5/3412 (2006.01) C08K 5/43 (2006.01) C08L 33/00 (2006.01)

Patent

CA 1266738

SALT RESISTANT POLYAMIDE COMPOSITION ABSTRACT A salt resistant composition comprising a polyamide selected from the group consisting of: polyepsiloncaprolactam, polyhexamethylene adipamide: copolymers of caprolactam, hexamethylene diamine, and adipic acid: and mixtures thereof. The composition contains from 2 to 30 percent, and preferably 4 to 30 percent based on the weight of the polyamide of a water insoluble plasticizer, and a copolymer of an alpha-olefin and an unsaturated carboxylic acid and derivatives thereof. The plasticizer has been found to enable the polyamide composition to maintain its flexibility upon exposure to a variety of salts. Preferred plasticizers include lauryl lactam and sulfonamides. Preferred are sulfonamide type plasticizers such as n-ethyl o,p-toluenesulfonamide: o,p-toluene sulfonamide, and toluene sulfonamide formaldehyde resin. The invention includes articles made from the composition.

513377

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