Abstract:
PROBLEM TO BE SOLVED: To provide a multilayer or monolayer plastic container having a barrier layer prepared by blending (i) a polyester resin, preferably an aromatic polyester resin such as a polyethylene terephthalate, (ii) a polyamide material, preferably an aromatic polyamide material, and (iii) an oxygen scavenging material, preferably a transition metal, and to provide a method of manufacturing the same.SOLUTION: In the preparation of the barrier layer, a preform first is prepared by an injection molding process, wherein a preblend containing a diluent polyester, polyamide material and the oxygen scavenging material is added to a base polyester during the injection molding process. The preform is expanded to form a container.
Abstract:
A method of manufacturing a multilayer or a monolayer plastic container is disclosed. The container has a barrier layer manufactured from (i) a polyester resin, preferably an aromatic polyester resin such as a polyethylene terephthalate, (ii) a polyamide material, preferably an aromatic polyamide material, and (iii) an oxygen scavenging material, preferably a transition metal. The present invention also provides containers having a multilayer or a monolayer body. In the preparation of the barrier layer. a preform first is prepared by an injectionmolding process wherein a preblend containing a diluent polyester, polyamide material, and an oxygen scavenging material is added to a base polyester during the injection molding process. The preform then is expanded to form a container.
Abstract:
Un envase de múltiples capas, que comprende una capa interna y una capa externa de un polímero conformable y una capa central, comprendiendo la capa central una mezcla de: entre el 20 y el 60% en peso de un material de poli(tereftalato de etileno); y entre el 40 y el 55% en peso de un material poliamídico; y de 50 a 10.000 ppm (partes por millón) en peso de un material captor del oxígeno; en el que la capa central comprende entre el 3 por ciento, aproximadamente, y el 6 por ciento, aproximadamente, del espesor total de la pared del envase.
Abstract:
Una composición que comprende una mezcla de: (i) un material de poliéster; (ii) un material de alcohol vinílico; y (iii) un material de poliolefina funcionalizada.
Abstract:
Se proporciona un polímero que incluye, preferentemente, al menos un grupo cicloalifático insaturado. En una modalidad, el polímero se combina con un agente de reticulación opcional y un portador opcional para formar una composición de recubrimiento adecuada para uso en artículos recubiertos, tales como artículos para envasar. En una modalidad, el polímero tiene al menos un grupo cicloalifático insaturado que es al menos bicíclico.
Abstract:
The present application relates to a barrier layer consisting of a composition comprising a blend of (i) a polyester resin, (ii) a polyamide material and optionally (iii) an oxygen scavenging material.
Abstract:
The present application relates to a barrier layer consisting of a composition comprising a blend of (i) a polyester resin, (ii) a polyamide material and optionally (iii) an oxygen scavenging material.
Abstract:
The present application relates to a barrier layer consisting of a composition comprising a blend of (i) a polyester resin, (ii) a polyamide material and optionally (iii) an oxygen scavenging material.
Abstract:
The present invention provides compositions useful as a barrier layer in, for example, packaging products. The compositions generally comprise a blend of (i) a polyester resin, preferably an aromatic polyester resin such as polyethylene terephthalate (PET) and (ii) a polyamide material (e.g., MXD6). The blend optionally may further comprise (iii) an oxygen scavenging material. The present invention also provides containers (e.g., containers formed by expansion of preforms) having a multilayered body-forming portion including: a core layer comprising the aforementioned blend; and inner and outer layers of a formable polymer composition. The present invention also provides methods of making such containers.