Abstract A process is disclosed for the manufacture of nylon packaging film having improved slip characteristics. In the process a homogeneous mixture is formed from a film-forming nylon resin and between 0.05 and 1.0 percent by weight thereof of a material selected from the group consisting of (1) secondary amides of the formula ##STR1## and (2) N, N' ethylene bis amides of the formula ##STR2## where R 1 and R 2 are aliphatic hydrocarbon chains of C 14 -C 22 . The homogeneous mixture is then extruded into film subsequently, the film is heated to a temperature between 40° C. and 150° C. for a period of 2 to 30 minutes in order to accelerate the development of improved film slip characteristics. The nylon film having improved slip characteristics is useful for the packaging of bacon and other processed meats.
A process for the manufacture of nylon film having improved slip characteristics which comprises the steps of (a) forming a homogeneous mixture of a film-forming nylon resin and between 0.05 and 1.0 percent by weight of the nylon resin of a material selected from the group consisting of (1) secondary amides of the formula ##STR9## and (2) N, N' ethylene bis amides of the formula ##STR10## where R 1 and R 2 aliphatic hydrocarbon chains of C 14 -C 22 ; and (b) melt extruding the mixture into film, (c) and thereafter heating the film to a temperature between 40° C. and 150° C. for a period of from 2 to 30 minutes.
Claim 2
Dependent Claim
113 words
A process for the manufacture of nylon film having improved slip characteristics which comprises the steps of (a) forming a homogeneous mixture of a film-forming nylon resin and between 0.05 and 1.0 percent by weight of the nylon resin of a material selected from the group consisting of (1) secondary amides of the formula ##STR9## and (2) N, N' ethylene bis amides of the formula ##STR10## where R 1 and R 2 aliphatic hydrocarbon chains of C 14 -C 22 ; and (b) melt extruding the mixture into film, (c) and thereafter heating the film to a temperature between 40° C. and 150° C. for a period of from 2 to 30 minutes.
Claim 3
Dependent Claim
59 words
The process of claim 1 wherein the nylon resin is selected from the group consisting of nylon 66, nylon 6, blends of nylon 66 and nylon 6 and copolymers of hexamethylene diamine adipate and ε-caprolactam and wherein the material is an N, N' ethylene bis amide selected from N, N' ethylene bis stearamide and N, N' ethylene bis oleamide.