Inhibition of crystallization in polyurethane resins
US11713367B2 · kind B2 · utility
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24References
27Claims
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Key dates
| Filing date | Dec 15, 2020 |
| Grant date | Aug 1, 2023 |
| Priority date | — |
| Expiry date | Dec 15, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2105/0005
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A resin composition useful for additive manufacturing is provided, which resin composition may exhibit improved shelf life through inhibition of crystallization. Such resin composition may include a crystallization inhibitor as taught herein, and/or a prepolymer produced by reaction of an isocyanate with multiple isomers and comprising a lower percentage of the structurally symmetric isomer. Methods of forming a three-dimensional object using such resin composition are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.