Auriga Polymers, Inc.

Invista North America S.a.r.l.

Invista Technologies S.a.r.l.

Sanjay Mehta

Xiaoyan Huang

Eric Baer

David Schiraldi

Zhenguo Liu

Phyllis Anne Hiltner

The invention relates to blends of sulfo-modified copolyester and polyalkylene furanoate such as polyethylene-, polybutylene-, or polytrimethylene-furanoate, or a mixture thereof. The sulfo-modified copolyester comprises at least about 75 mole % of polyethylene terephthalate or polyethylene naphthalate or a mixture thereof; and

Polymer blends with furan based polyesters

The present invention relates to bio-copolyester of polyethylene terephthalate composition prepared from raw materials which are derived from biomass. The bio-composition comprises: 1) about 92 to about 99 mole % of bioPET, prepared from bioMEG and bioPTA, 2) about 1 to about 8 mole % bio-based acids, bio-based diols and/or bio-based branching agents. Bio-based acids include bio-aliphatic diacids or bio-aromatic diacids, or their corresponding bio-esters, or a mixture thereof. Bio-based diols include bio-aliphatic diol comprising 3 to 20 carbon atoms, bio-cycloaliphatic diol of 6 to 20 carbon atoms, or bio-aromatic diol comprising 6 to 14 carbon atoms, or a mixture thereof. Bio-based branching agents include bio-aliphatic compounds having more than two functionalities such as bio-trimellitic anhydride, bio-trimethylol propane, or bio-pentaerythritol, or a blend thereof.

Bio-based copolyester or copolyethylene terephthalate

The present invention comprises a blend of polyester and a partially aromatic polyamide with an ionic compatibilizer and a cobalt salt. This blend can be processed into a container that has both active and passive oxygen barrier and carbon dioxide barrier properties at an improved color and clarity than containers known in the art. The partially aromatic polyamide is preferably meta-xylylene adipamide. The ionic compatibilizer is preferably 5-sodiumsulfoisophthalic acid or 5-zincsulfoisophthalic acid, or their dialkyl esters such as the dimethyl ester (SIM) and glycol ester (SIPEG). The cobalt salt is selected form the class of cobalt acetate, cobalt carbonate, cobalt chloride, cobalt hydroxide, cobalt naphthenate, cobalt oleate, cobalt linoleate, cobalt octoate, cobalt stearate, cobalt nitrate, cobalt phosphate, cobalt sulfate, cobalt (ethylene glycolate), or mixtures of two or more of these. The partially aromatic polyamide is present in a range from about 1 to about 10 wt. % of said composition. The ionic compatibilizer is present in a range from about 0.1 to about 2.0 mol-% of said composition. The cobalt salt is present in a range from about 20 to about 500 ppm of said composition.

Method to make single-layer PET bottles with high barrier and improved clarity

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Spartanburg, SC, United States of America

Sanjay Mehta