Back to results
US 2014/0322394 A1Published application
Smokable thermoplastic casing
AssigneeViskase Companies, Inc.
InventorsAamir W. Siddiqui, Nancy Tamez de Caballero
Life of this patent
Estimating the term…
Abstract
A novel smokable thermoplastic film, smokable by both liquid smoke and gaseous smoke, that may be produced as a film or a tube, as in a food casing. This newly disclosed film is a blend of a polyamide base, an amorphous polyvinyl alcohol and, optionally, an antiblocking agent.
Claims18
A smokable, heat-shrinkable film useable for food packaging, the film comprising:
- (i) at least one hydrophilic, amorphous, copolyvinyl alcohol resin, in amounts of from about 20 wt. % to about 70 wt. %, based on the weight of the film;
- (ii) at least one polyamide, in amounts of from about 30 wt. % to about 80 wt. %, based on the weight of the film;
- and
- a) wherein the polyamide is aliphatic or a blend of aliphatic and amorphous polyamide;
- and
- (iii) optionally, at least one antiblock agent, in amounts of from about 3 wt. % to about 5 wt. %, based on the weight of the film;
- and that allows the transfer of both liquid and gaseous smoke through the film.
4 more elements
A smokable, heat-shrinkable film useable for food packaging, the film comprising:
- (i) a hydrophilic, amorphous, copolyvinyl alcohol resin having a melt flow index determined at 210° C. and 2.16 kg from 2 to 4 g/10 minutes, a melting point of 154° C., and less than 0.5% of volatile matter, in amounts of from about 20 wt. % to about 70 wt. %, based on the weight of the film;
- (ii) at least one polyamide selected from the group consisting of nylon 6, nylon 66, nylon 6,12, nylon 6/12 copolymer, nylon 6/66 copolymer, and nylon 6I/6T, in amounts of from about 30 wt. % to about 80 wt. %;
- and
- (iii) the copolyvinyl alcohol resin optionally comprises at least one further additive selected from the group consisting of a slip additive, antioxidant, pigment, dye, filler, and mixtures thereof;
- wherein both liquid and gaseous smoke is transferable through the film.
2 more elements
Dependencies are inferred from the claim text.