Copolyesters for use in low shear melt applications
US11427675B2 · kind B2 · utility
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Key dates
| Filing date | Nov 21, 2019 |
| Grant date | Aug 30, 2022 |
| Priority date | — |
| Expiry date | Mar 25, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2367/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of manufacturing a molded article by a low shear manufacturing process that includes: placing a solid polyester in a mold having mold surfaces; heating said polyester until it becomes molten; dispersing said molten polyester over said mold surfaces; solidifying said molten polyester to form a solid molded article; and removing said molded article from said mold; where the polyester is obtained by polymerization of dimethylcyclohexane dicarboxylic acid, cyclohexane dimethanol, polytetramethylene ether glycol and branching agent and has a steep melting curve evidenced by a puddling curve slope of −2 to −10.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.