The present invention provides a sterilized oxygen-absorbing resin composition obtained by performing at least: a sterilizing step of irradiating with radiation an oxygen-absorbing resin composition containing a transition metal catalyst and a thermoplastic resin (a) having a tetralin ring as a constituent unit; and a step of heating the oxygen-absorbing resin composition at a temperature equal to or higher than the glass transition temperature of the thermoplastic resin (a) and equal to or lower than 200 C., after the sterilizing step.

A method and system for oxygen molecule scavenging is disclosed. The system employs as a novel copolymer as the reducing agent for oxygen molecules. The copolymer is the polymerization product of cyclic aliphatic monomer and unsaturated functional polymer.

Described are polyesters comprising (a) a dicarboxylic acid component comprising 80 to 100 mole % terephthalic acid residues; optionally, 0 to 20 mole % aromatic dicarboxylic acid residues or aliphatic dicarboxylic acid residues; 20 to 30 mole % of 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues; and 70 to 80 mole % 1,4-cyclohexanedimethanol residues. The polyesters may be manufactured into articles such as fibers, films, bottles or sheets.

Provided herein are polymer (e.g., PET) compositions comprising exfoliated hexagonal boron nitride (h-BN), methods of preparing and methods of using thereof. The methods for preparing the polymer (e.g., PET) compositions include providing a reactant mixture comprising exfoliated hexagonal boron nitride (h-BN) and a first monomeric or oligomeric reactant, and polymerizing the first monomeric or oligomeric reactant. Also provided are containers (e.g., bottles) prepared using the polymer (e.g., PET) compositions comprising exfoliated h-BN.

The present invention relates to a specific polyethylene terephthalate (PET) allowing to produce a stretch blow molded PET bottle having superior resistance to environmental stress cracking when the inner or outer surface of the bottle is treated with stress cracking causing chemical substances and to a method of manufacturing such specific PET. The invention also relates to a stretch blow molded bottle made of such PET and a preform of such a bottle. The invention further relates to the use of the specific PET for the manufacture of a stretch blow molded PET bottle having said superior resistance to environmental stress cracking or the manufacture of a preform of such a PET bottle.

The invention relates to a method for manufacturing a plastic container, the method comprising the following steps: o providing an injected preform, o heating the preform (S2), and o performing stretch blow molding (S3) of the preform, thereby forming the container. The preform is made of a material comprising 40 to 99.9 weight percent of Polyhydroxyalkanoate (PHA). In the heating step, the preform is brought to a temperature comprised in a range between 1 C. and 20 C. under the melting temperature of the PHA. The present invention thus makes it possible to perform ISBM of Polyhydroxyalkanoate to produce a plastic container.

The present invention provides a sterilized oxygen-absorbing resin composition obtained by performing at least: a sterilizing step of irradiating with radiation an oxygen-absorbing resin composition containing a transition metal catalyst and a thermoplastic resin (a) having a tetralin ring as a constituent unit; and a step of heating the oxygen-absorbing resin composition at a temperature equal to or higher than the glass transition temperature of the thermoplastic resin (a) and equal to or lower than 200 C., after the sterilizing step.

[Problems] An object of the present invention is to provide a polyester resin having excellent curability and further having processability, retort resistance, and dent resistance, and a composition for coating a metal plate, in which the polyester resin is used.

[Solution] A polyester resin comprising a polyvalent carboxylic acid component and a polyhydric alcohol component as copolymerization components, wherein the polyester resin satisfies the following requirements (i) to (iii). (i) the polyvalent carboxylic acid component constituting the polyester resin has 10 mol % or more of a polyvalent carboxylic acid component having a furan skeleton, (ii) the number of kinds of polyhydric alcohol components constituting the polyester resin is two or more, and (iii) the polyester resin has a glass-transition temperature of 70 C. or higher.

A polymer composition [composition (M)], may include i) at least one polyglycolic acid polymer [polymer (PGA)], wherein polymer (PGA) is a branched polyglycolic acid polymer [polymer (b-PGA)] and ii) at least one amorphous polyester [polymer (APES)], the polymer (APES) being present in the composition (M) in an amount of at least 0.10 and of at most 45 wt %, with respect to the combined weight of polymer (PGA) and polymer (APES). A method of making composition (M) and method of producing a multilayer stretched product from composition (M) are also described.

A coating composition comprising: a. a polyester imide (PEI) polymer having an acid value of 10 mg KOH/g; and b. a crosslinker operable to crosslink the acid functionality on the polyester imide polymer wherein the coating composition is substantially free of bisphenol A (BPA), bisphenol F (BPF), bisphenol A diglycidyl ether (BADGE) and bisphenol F diglycidyl ether (BFDGE).