Sacrificial microspheres
US11254796B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | Oct 19, 2017 |
| Grant date | Feb 22, 2022 |
| Priority date | — |
| Expiry date | Feb 21, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2323/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A polymeric material can be deposited or coated on a surface of a hollow microsphere to produce a sacrificial microsphere. Sacrificial microspheres can provide a cost-effective way to produce lightweight plastics and composites.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.