Abstract: A process tear production of high molecular weight polyamide polymers, such as 6/66 copolymers, using a reactant stream that includes at least one lactam and cyclic oligomers. The stream is reacted with at least one diamine at an elevated temperature ring-open the cyclic oligomers to produce amide pre-polymers that are end-capped with amine groups. The pre-polymers are then reacted with at least one diacid at an elevated temperature to form polyamide 6/66 copolymers. The cyclic oligomers may be formed as by-products during standard polymerization of polyamide polymers from monomers such as caprolactam, hexamethylene diamine and adipic acid.

Abstract: A process for production of high molecular weight polyamide polymers, such as 6/66 copolymers, using a reactant stream that includes at least one lactam and cyclic oligomers. The stream is reacted with at least one diamine at an elevated temperature to ring-open the cyclic oligomers to produce amide pre-polymers that are end-capped with amine groups. The pre-polymers are then reacted with at least one diacid at an elevated temperature to form polyamide 6/66 copolymers. The cyclic oligomers may be formed as by-products during standard polymerization of polyamide polymers from monomers such as caprolactam, hexamethylene diamine and adipic acid.

Abstract: Methods for mixing nylon compounds and compositions useful in mixing nylon compounds are provided. The methods and compositions disclosed are useful in producing nylon for wire and cable jacketing. The disclosed methods provide nylon having a reduced heat history compared to traditional methods. The disclosed methods and composition provide additional mixing capacity by reducing the amount of nylon that must be incorporated with additives per unit of final nylon composition. The disclosed methods and compositions provide the ability to select from a plurality of additive concentration levels in the final product by varying the ratio of a masterbatch compound containing a high concentration of the additive to a resin containing a low concentration or no additive.

Abstract: Methods for mixing nylon compounds and compositions useful in mixing nylon compounds are provided. The methods and compositions disclosed are useful in producing nylon for wire and cable jacketing. The disclosed methods provide nylon having a reduced heat history compared to traditional methods. The disclosed methods and composition provide additional mixing capacity by reducing the amount of nylon that must be incorporated with additives per unit of final nylon composition. The disclosed methods and compositions provide the ability to select from a plurality of additive concentration levels in the final product by varying the ratio of a masterbatch compound containing a high concentration of the additive to a resin containing a low concentration or no additive.

Abstract: Methods for mixing nylon compounds and compositions useful in mixing nylon compounds are provided. The methods and compositions disclosed are useful in producing nylon for wire and cable jacketing. The disclosed methods provide nylon having a reduced heat history compared to traditional methods. The disclosed methods and composition provide additional mixing capacity by reducing the amount of nylon that must be incorporated with additives per unit of final nylon composition. The disclosed methods and compositions provide the ability to select from a plurality of additive concentration levels in the final product by varying the ratio of a masterbatch compound containing a high concentration of the additive to a resin containing a low concentration or no additive.

Abstract: Methods for mixing nylon compounds and compositions useful in mixing nylon compounds are provided. The methods and compositions disclosed are useful in producing nylon for wire and cable jacketing. The disclosed methods provide nylon having a reduced heat history compared to traditional methods. The disclosed methods and composition provide additional mixing capacity by reducing the amount of nylon that must be incorporated with additives per unit of final nylon composition. The disclosed methods and compositions provide the ability to select from a plurality of additive concentration levels in the final product by varying the ratio of a masterbatch compound containing a high concentration of the additive to a resin containing a low concentration or no additive.