DE69828431D1 - Rückgewinnung von 2,6-naphthalenedicarbonsäure aus polyestern - Google Patents
Rückgewinnung von 2,6-naphthalenedicarbonsäure aus polyesternInfo
- Publication number
- DE69828431D1 DE69828431D1 DE69828431T DE69828431T DE69828431D1 DE 69828431 D1 DE69828431 D1 DE 69828431D1 DE 69828431 T DE69828431 T DE 69828431T DE 69828431 T DE69828431 T DE 69828431T DE 69828431 D1 DE69828431 D1 DE 69828431D1
- Authority
- DE
- Germany
- Prior art keywords
- polyesters
- recovery
- naphthalenedicarboxylic acid
- naphthalenedicarboxylic
- acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/09—Preparation of carboxylic acids or their salts, halides or anhydrides from carboxylic acid esters or lactones
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Polyesters Or Polycarbonates (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US6021697P | 1997-10-01 | 1997-10-01 | |
US60216P | 1997-10-01 | ||
PCT/US1998/020504 WO1999016738A1 (en) | 1997-10-01 | 1998-09-30 | Recovery of 2,6-naphthalene dicarboxylic acid from polyesters |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69828431D1 true DE69828431D1 (de) | 2005-02-03 |
DE69828431T2 DE69828431T2 (de) | 2006-01-12 |
Family
ID=22028091
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69828431T Expired - Lifetime DE69828431T2 (de) | 1997-10-01 | 1998-09-30 | Rückgewinnung von 2,6-naphthalenedicarbonsäure aus polyestern |
Country Status (9)
Country | Link |
---|---|
US (1) | US6103930A (de) |
EP (1) | EP1027320B1 (de) |
JP (1) | JP4570771B2 (de) |
KR (1) | KR100562811B1 (de) |
CN (1) | CN1134395C (de) |
AU (1) | AU1063999A (de) |
CA (1) | CA2304177C (de) |
DE (1) | DE69828431T2 (de) |
WO (1) | WO1999016738A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1319695B1 (it) * | 2000-12-15 | 2003-10-23 | Sinco Ricerche Spa | Recupero di acidi dicarbossilici aromatici da manufatti di riciclo inresine poliestere. |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1926034A1 (de) * | 1969-05-22 | 1970-11-26 | Reichhold Albert Chemie Ag | Verfahren zur Wiedergewinnung von Terephthalsaeure aus Terephthalsaeurepolyestern |
US3629202A (en) * | 1969-09-12 | 1971-12-21 | Eastman Kodak Co | Treating polyesters with organic acids for improved stability |
JP2874223B2 (ja) * | 1989-11-15 | 1999-03-24 | 三菱瓦斯化学株式会社 | 高純度2,6‐ナフタリンジカルボン酸の製造法 |
US5414113A (en) * | 1993-10-18 | 1995-05-09 | Amoco Corporation | Process for recovery of aromatic acid from waste polyester resin |
US5473102A (en) * | 1994-10-05 | 1995-12-05 | Amoco Corporation | Process for recovery of aromatic acid and dihydric alcohol from waste polyester resins |
-
1998
- 1998-09-18 US US09/157,277 patent/US6103930A/en not_active Expired - Fee Related
- 1998-09-30 CN CNB988096331A patent/CN1134395C/zh not_active Expired - Fee Related
- 1998-09-30 AU AU10639/99A patent/AU1063999A/en not_active Abandoned
- 1998-09-30 EP EP98953211A patent/EP1027320B1/de not_active Expired - Lifetime
- 1998-09-30 JP JP2000513824A patent/JP4570771B2/ja not_active Expired - Fee Related
- 1998-09-30 CA CA002304177A patent/CA2304177C/en not_active Expired - Fee Related
- 1998-09-30 KR KR1020007003491A patent/KR100562811B1/ko not_active IP Right Cessation
- 1998-09-30 WO PCT/US1998/020504 patent/WO1999016738A1/en active IP Right Grant
- 1998-09-30 DE DE69828431T patent/DE69828431T2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
KR100562811B1 (ko) | 2006-03-21 |
JP4570771B2 (ja) | 2010-10-27 |
AU1063999A (en) | 1999-04-23 |
JP2001518456A (ja) | 2001-10-16 |
US6103930A (en) | 2000-08-15 |
KR20010030833A (ko) | 2001-04-16 |
CA2304177C (en) | 2008-12-02 |
EP1027320A1 (de) | 2000-08-16 |
CN1272103A (zh) | 2000-11-01 |
CN1134395C (zh) | 2004-01-14 |
WO1999016738A1 (en) | 1999-04-08 |
DE69828431T2 (de) | 2006-01-12 |
WO1999016738B1 (en) | 1999-05-14 |
EP1027320B1 (de) | 2004-12-29 |
CA2304177A1 (en) | 1999-04-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |