Modified polyglycolic acid and molded articles for degradable downhole tools application
US11827780B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Dec 8, 2021 |
| Grant date | Nov 28, 2023 |
| Priority date | — |
| Expiry date | Mar 12, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/03
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The patent application discloses a degradable polymers compounds. The polymer compounds comprises product of blends of polyglycolic acid and polylactic acid in a weight ratio of from about 99/1 to about 50/50 in mixture with a compatibilizer poly(lactic-co-glycolic acid), wherein the compounded product has a tensile strength of at least about 12,000 psi.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.