Abstract:
The present invention is directed to a PEF copolymers, methods for processing the same to provide PEF preforms and articles (e.g., containers), as well as the preforms and articles formed by such methods. Advantageously, the PEF copolymers, preforms and articles of the present invention have one or more improved properties relative to unmodified (i.e., neat) PEF and articles formed therefrom.
Abstract:
A multilayer container having enhanced gas barrier properties comprises at least two outer layers comprising a polymer matrix, and at least one barrier layer disposed between the at least two outer layers. The at least one barrier layer comprises a first polymer composition comprising a polymer matrix and a low molecular weight additive. In a particular embodiment, the low molecular weight additive comprises a purine derivative, such as caffeine, and is present in the multilayer container in an amount in the range of about 0.2 to about 10 weight percent of the container.
Abstract:
The present invention relates to an apparatus (10) and process for injection molding polymer articles that reduces deposition of additives on the apparatus. Specifically, pressurizing of the mold cavity (16) with a pressurized gas reduces the deposition of low molecular weight additives on the apparatus. Embodiments of the invention also include an apparatus for injection molding polymer articles comprising at least one pressurized gas inlet (26) for introducing a pressurized gas into the mold cavity.
Abstract:
Preforms and methods of processing 2,5-furandicarboxylic acid (FDCA) polymers, such as poly(ethylene-2,5-furandicaboxylate (PEF), to produce preforms and articles, such as containers. The present invention also includes preforms with superior processing characteristics and containers, such as PEF beverage bottles, with superior performance properties.
Abstract:
The present invention is directed to methods, devices and systems for making polymer preforms having a controlled amount of stress and molecular orientation, as well as to the polymer preforms formed thereby. The present invention also extends to methods for making polymer containers from such polymer preforms, as well as to the polymer containers formed thereby and packaged beverages comprising such containers. Advantageously, the polymer containers of the present invention offer improved performance, including but not limited to extended shelf-life.
Abstract:
This invention relates to a method of making a bio-based PET packaging and particularly to a method of producing a bio-based PET from at least one bio-based material comprising: a) forming at least one PET component from at least one bio-based material, wherein the at least one PET component is selected from a monoethylene glycol ("MEG"), a terephthalic acid ("TA"), and combinations thereof; (b) processing said bio-based PET component into a bio-based PET.
Abstract:
A container comprising a polyester composition with enhanced carbon dioxide and oxygen barrier properties is provided. The polyester composition comprises a polyester and a gas barrier enhancing additive. In a particular embodiment, the gas barrier enhancing additive comprises a compound having the chemical formula: X-(X 1 ) s -COO-(X 2 ) t - X 3 -(X 4 ) u -OOC-(X 5 ) v -X 6 or X-(X 1 ) s -OOC-(X 2 ) t -X 3 -(X 4 ) u -COO-(X 5 ) v -X 6
Abstract:
A multilayer container having enhanced gas barrier properties comprises at least two outer layers comprising a polymer matrix, and at least one barrier layer disposed between the at least two outer layers. The at least one barrier layer comprises a first polymer composition comprising a polymer matrix and a low molecular weight additive. In a particular embodiment, the low molecular weight additive comprises a purine derivative, such as caffeine, and is present in the multilayer container in an amount in the range of about 0.2 to about 10 weight percent of the container.
Abstract:
The present invention relates to improved methods for measuring the renewable bio-source carbon content and renewable bio-content in renewable bioplastic resins produced in manufacturing plants. In particular, the present invention relates to measuring the renewable bio-source carbon content in renewable bioplastic resins produced during a production run by correlating measured δ 13 C values are measured by i TOC-CRDS and CM-CRDS with actual renewable bio-source carbon content measurements (AMS or LSC 14 C) via a linear regression.
Abstract:
This invention relates to a method of making a bio-based PET packaging and particularly to a method of producing a bio-based PET from at least one bio-based material comprising: a) forming at least one PET component from at least one bio-based material, wherein the at least one PET component is selected from a monoethylene glycol ("MEG"), a terephthalic acid ("TA"), and combinations thereof; (b) processing said bio-based PET component into a bio-based PET.