摘要:
A polymer is provided that preferably includes at least one unsaturated cycloaliphatic group. In one embodiment, the polymer is combined with an optional crosslinker and an optional carrier to form a coating composition suitable for use in coating articles such as packaging articles. In one embodiment, the polymer has at least one unsaturated cycloaliphatic group that is at least bicyclic.
摘要:
A polymer and coating compositions containing the polymer are provided that are useful in coating applications such as, for example, food or beverage packaging coatings. The polymer preferably includes a polyester backbone and at least one deblockable isocyanate group attached to the backbone. In one embodiment, the polymer includes a polyester-carbamate backbone, one or more pendant deblockable isocyanate groups, and one or more terminal or pendant isocyanate-reactive groups. The deblockable isocyanate groups may be provided, for example, through use of a partially blocked polyisocyanate.
摘要:
A polymer with a backbone having at least one structural unit represented by formula (I): Wherein R1, R2, R3, R4, and R5 independently denote one of a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, or a substituted or unsubstituted alkenyl group, and n preferably denotes an integer from 1 to 10.
摘要翻译:具有骨架的聚合物具有至少一个由式(I)表示的结构单元:其中R 1,R 2,R 3,R R 5和R 5独立地表示氢原子,取代或未取代的烷基,取代或未取代的环烷基或取代或未取代的烯基中的一个,以及 n优选表示1〜10的整数。
摘要:
An oxygen-scavenging component and methods for producing the oxygen-scavenging component are provided. The oxygen-scavenging component, which in preferred embodiments is suitable for use in packaging articles, includes an oxygen-scavenging group preferably having at least one double bond. The oxygen-scavenging component may be combined with a polymer and/or an oxidation catalyst to form an oxygen-scavenging composition.
摘要:
An oxygen-scavenging component and methods for producing the oxygen-scavenging component are provided. The oxygen-scavenging component, which in preferred embodiments is suitable for use in packaging articles, includes an oxygen-scavenging group preferably having at least one double bond. The oxygen-scavenging component may be combined with a polymer and/or an oxidation catalyst to form an oxygen-scavenging composition.
摘要:
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 .
摘要:
The present invention provides an oxygen-scavenging composition and articles formed therefrom. The oxygen-scavenging composition preferably includes an oxygen-scavenging polymer having an unsaturated bicyclic group, a based polymer, and an optional oxidation catalyst. The base polymer preferably includes a substituted or unsubstituted addition backbone, which may include heteratoms.
摘要:
An oxygen-scavenging composition is provided that includes an oxygen-scavenging component and a catalyst. The oxygen-scavenging component, which in preferred embodiments is suitable for use in packaging articles, includes two or more oxygen-scavenging groups having different scavenging properties. In one embodiment, one of the oxygen-scavenging groups is an unsaturated bicyclic group.
摘要:
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.
摘要:
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 method. 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 injection-molding 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.