Back to results
US 2026/0085185 A1Published application
Polymer, preform, biaxially stretched molded article, resin pellet, and method of producing biaxially stretched molded article
OwnerTsunenori Ashibe, Koki Kodaira +1inventors
InventorsTSUNENORI ASHIBE, KOKI KODAIRA, YOHEI DOI
Life of this patent
Estimating the term…
Abstract
A polymer including a polyethylene terephthalate linked by a polycarbodiimide represented by formula (1), wherein the polymer has a melt flow rate (MFR) of 41 g/10 min or more: in formula (1), R represents an alkylene group having 1 to 12 carbon atoms, and n represents an integer of 2 or more and 100 or less.
Claims6
A polymer comprising:
- a polyethylene terephthalate linked by a polycarbodiimide represented by formula (1),
- wherein the polymer contains 80 mass % or more of a polyethylene terephthalate moiety, and
- wherein the polymer has a melt flow rate (MFR) of 41 g/10 min or more:
- in formula (1), R represents an alkylene group having 1 to 12 carbon atoms, and n represents an integer of 2 or more and 100 or less.
1 more element
A polymer comprising:
- a unit represented by formula (2),
- wherein the polymer contains 80 mass % or more of a polyethylene terephthalate moiety, and
- wherein the polymer has a melt flow rate (MFR) of 41 g/10 min or more:
- where R represents an alkylene group having 1 to 12 carbon atoms, and “*” represents a bonding site with respect to the polyethylene terephthalate moiety.
1 more element
A method of producing a biaxially stretched molded article comprising:
- producing a preform from a polymer;
- and
- subjecting the preform to blow molding,
- wherein the polymer includes a polymer including a polyethylene terephthalate linked by a polycarbodiimide represented by formula (1), and
- wherein the polymer has a melt flow rate (MFR) of 41 g/10 min or more:
- in formula (1), R represents an alkylene group having 1 to 12 carbon atoms, and n represents an integer of 2 or more and 100 or less.
3 more elements
Dependencies are inferred from the claim text.