Polycarbonate composition and associated article and method of additive manufacturing
US11834577B2 · kind B2 · utility
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5References
3Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 25, 2019 |
| Grant date | Dec 5, 2023 |
| Priority date | — |
| Expiry date | Dec 21, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A composition includes specific amounts of a reinforcing filler and a copolycarbonate containing bisphenol A carbonate units and second carbonate units of the formula wherein Ra, Rb, R3, R4, j, p, and q are defined herein. The composition is useful for fabricating articles that exhibit a desirable balance of heat resistance, printability in large format additive manufacturing, and good surface appearance in printed parts. Also described is a method of additive manufacturing utilizing the composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.