Method for producing polyamide resin film
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United States of America Patent
Stats
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Jun 18, 2024
Grant Date -
Feb 23, 2023
app pub date -
Jan 22, 2021
filing date -
Jan 22, 2021
priority date (Note) -
In Force
status (Latency Note)
Importance
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US Family Size
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Non-US Coverage
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Abstract
To provide a method for producing a polyamide resin film by using a polyamide resin obtained through polymerization of a regenerated monomer used as a recycled material. Provided is a method for producing a polyamide resin film, including: (1) a step of producing a monomer from a raw material (A) for depolymerization, (2) a step of producing a polyamide resin (B) through polymerization using a raw material containing the monomer. (3) a step of refining the polyamide resin (B), and (4) a step of producing an unstretched film using a starting material containing the refined polyamide resin (B), and stretching the unstretched film.
First Claim
Other Claims data not available
Family
| Country | kind | publication No. | Filing Date |
|---|---|---|---|
| CN | B | CN115003735 | Jan 22, 2021 |
| KR | A | KR20240090871 | Jan 22, 2021 |
| EP | A1 | EP4094923 | Jan 22, 2021 |
| TW | B | TWI841821 | Jan 22, 2021 |
| WO | A1 | WO2021149815 | Jan 22, 2021 |
| KR | B1 | KR102669959 | Jan 22, 2021 |
| JP | B2 | JP7137808 | Jan 22, 2021 |
| JP | B2 | JP7641605 | Aug 27, 2022 |
| JP | B2 | JP7641606 | Aug 27, 2022 |
| US | A1 | US20230257539 | Apr 28, 2023 |
International Classification(s)
- 2021 Application Filing Year
- C08J Class
- 2084 Applications Filed
- 595 Patents Issued To-Date
- 28.56 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- C08J Class
- 0 % this patent is cited more than
- 1 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Dec 18, 2027 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Dec 18, 2031 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Dec 18, 2035 |
