NO772119L - Pigmentert polymersammensetning. - Google Patents
Pigmentert polymersammensetning.Info
- Publication number
- NO772119L NO772119L NO772119A NO772119A NO772119L NO 772119 L NO772119 L NO 772119L NO 772119 A NO772119 A NO 772119A NO 772119 A NO772119 A NO 772119A NO 772119 L NO772119 L NO 772119L
- Authority
- NO
- Norway
- Prior art keywords
- composition according
- chelating agent
- integer
- hydroxyphenyl
- butyl
- Prior art date
Links
- 239000000203 mixture Substances 0.000 title claims description 35
- 229920000642 polymer Polymers 0.000 title claims description 6
- 239000002738 chelating agent Substances 0.000 claims description 21
- 239000000049 pigment Substances 0.000 claims description 17
- 229920005672 polyolefin resin Polymers 0.000 claims description 13
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 claims description 10
- RBTKNAXYKSUFRK-UHFFFAOYSA-N heliogen blue Chemical compound [Cu].[N-]1C2=C(C=CC=C3)C3=C1N=C([N-]1)C3=CC=CC=C3C1=NC([N-]1)=C(C=CC=C3)C3=C1N=C([N-]1)C3=CC=CC=C3C1=N2 RBTKNAXYKSUFRK-UHFFFAOYSA-N 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 239000003381 stabilizer Substances 0.000 claims description 7
- 125000000217 alkyl group Chemical group 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 125000004432 carbon atom Chemical group C* 0.000 claims description 5
- 125000002252 acyl group Chemical group 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 229920001577 copolymer Polymers 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 125000001501 propionyl group Chemical group O=C([*])C([H])([H])C([H])([H])[H] 0.000 claims description 3
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims description 3
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 3
- 239000004711 α-olefin Substances 0.000 claims description 3
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 claims description 2
- 229920001519 homopolymer Polymers 0.000 claims description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 2
- 239000000178 monomer Substances 0.000 claims description 2
- 238000010525 oxidative degradation reaction Methods 0.000 claims 1
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 18
- -1 polypropylenes Polymers 0.000 description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 7
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 239000010949 copper Substances 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000004743 Polypropylene Substances 0.000 description 4
- 239000003963 antioxidant agent Substances 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 229920001155 polypropylene Polymers 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 244000025254 Cannabis sativa Species 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 229920000768 polyamine Polymers 0.000 description 3
- 239000002952 polymeric resin Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- RZWZRACFZGVKFM-UHFFFAOYSA-N propanoyl chloride Chemical compound CCC(Cl)=O RZWZRACFZGVKFM-UHFFFAOYSA-N 0.000 description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- NGNBDVOYPDDBFK-UHFFFAOYSA-N 2-[2,4-di(pentan-2-yl)phenoxy]acetyl chloride Chemical compound CCCC(C)C1=CC=C(OCC(Cl)=O)C(C(C)CCC)=C1 NGNBDVOYPDDBFK-UHFFFAOYSA-N 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- 239000012963 UV stabilizer Substances 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- ZSWFCLXCOIISFI-UHFFFAOYSA-N cyclopentadiene Chemical compound C1C=CC=C1 ZSWFCLXCOIISFI-UHFFFAOYSA-N 0.000 description 2
- 230000000593 degrading effect Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 229920005673 polypropylene based resin Polymers 0.000 description 2
- KIDHWZJUCRJVML-UHFFFAOYSA-N putrescine Chemical compound NCCCCN KIDHWZJUCRJVML-UHFFFAOYSA-N 0.000 description 2
- 239000012258 stirred mixture Substances 0.000 description 2
- NWZSZGALRFJKBT-KNIFDHDWSA-N (2s)-2,6-diaminohexanoic acid;(2s)-2-hydroxybutanedioic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O.NCCCC[C@H](N)C(O)=O NWZSZGALRFJKBT-KNIFDHDWSA-N 0.000 description 1
- PWGJDPKCLMLPJW-UHFFFAOYSA-N 1,8-diaminooctane Chemical compound NCCCCCCCCN PWGJDPKCLMLPJW-UHFFFAOYSA-N 0.000 description 1
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical compound NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 description 1
- SIOCOHKVFYNZJP-UHFFFAOYSA-N 3-(3,5-ditert-butyl-4-hydroxyphenyl)-n-[2-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoylamino]ethyl]propanamide Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)NCCNC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 SIOCOHKVFYNZJP-UHFFFAOYSA-N 0.000 description 1
- ZOBPSRSIQFGBJV-UHFFFAOYSA-N 3-(3,5-ditert-butyl-4-hydroxyphenyl)-n-[8-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoylamino]octyl]propanamide Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)NCCCCCCCCNC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 ZOBPSRSIQFGBJV-UHFFFAOYSA-N 0.000 description 1
- ZXUKNOGFRSOORK-UHFFFAOYSA-N 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyl chloride Chemical compound CC(C)(C)C1=CC(CCC(Cl)=O)=CC(C(C)(C)C)=C1O ZXUKNOGFRSOORK-UHFFFAOYSA-N 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 206010063493 Premature ageing Diseases 0.000 description 1
- 208000032038 Premature aging Diseases 0.000 description 1
- 239000005700 Putrescine Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- QFTYSVGGYOXFRQ-UHFFFAOYSA-N dodecane-1,12-diamine Chemical compound NCCCCCCCCCCCCN QFTYSVGGYOXFRQ-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229920000578 graft copolymer Polymers 0.000 description 1
- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine monohydrate Substances O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000012442 inert solvent Substances 0.000 description 1
- 150000007529 inorganic bases Chemical class 0.000 description 1
- 125000000904 isoindolyl group Chemical group C=1(NC=C2C=CC=CC12)* 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- JFNLZVQOOSMTJK-KNVOCYPGSA-N norbornene Chemical compound C1[C@@H]2CC[C@H]1C=C2 JFNLZVQOOSMTJK-KNVOCYPGSA-N 0.000 description 1
- 150000007530 organic bases Chemical class 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000000088 plastic resin Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001384 propylene homopolymer Polymers 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 239000012260 resinous material Substances 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 239000012747 synergistic agent Substances 0.000 description 1
- 238000003878 thermal aging Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/20—Carboxylic acid amides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/22—Compounds containing nitrogen bound to another nitrogen atom
- C08K5/24—Derivatives of hydrazine
- C08K5/25—Carboxylic acid hydrazides
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/705,233 US4066610A (en) | 1976-07-14 | 1976-07-14 | Stabilized pigmented polyolefin compositions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO772119L true NO772119L (no) | 1978-01-17 |
Family
ID=24832589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO772119A NO772119L (no) | 1976-07-14 | 1977-06-16 | Pigmentert polymersammensetning. |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US4066610A (fr) |
| JP (1) | JPS539846A (fr) |
| BE (1) | BE856813A (fr) |
| CA (1) | CA1061924A (fr) |
| DK (1) | DK317977A (fr) |
| FR (1) | FR2358438A1 (fr) |
| GB (1) | GB1539137A (fr) |
| NO (1) | NO772119L (fr) |
| SE (1) | SE425011B (fr) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53132048A (en) * | 1977-04-22 | 1978-11-17 | Tokyo Printing Ink Mfg Co Ltd | Colorant composition for polyolefin |
| US4536527A (en) * | 1983-05-11 | 1985-08-20 | Celanese Corporation | Poly(butylene terephthalate) based molding resins |
| US4469834A (en) * | 1983-05-11 | 1984-09-04 | Celanese Corporation | Poly(butylene terephthalate) based molding resins |
| DE3521558A1 (de) * | 1985-06-15 | 1986-12-18 | Basf Ag, 6700 Ludwigshafen | 3-t-butyl-4-hydroxiphenylpropionsaeureaminoalkylamidderivate und damit stabilisiertes organisches material |
| GB8811649D0 (en) * | 1988-05-17 | 1988-06-22 | Ciba Geigy Ag | Resin compositions |
| DE3920616A1 (de) * | 1989-06-23 | 1991-01-03 | Boehringer Mannheim Gmbh | Arzneimittel, enthaltend di-tert.-butylhydroxyphenyl-derivate sowie neue derivate |
| ES2152413T3 (es) * | 1994-07-26 | 2001-02-01 | Procter & Gamble | Composiciones suavizantes de tejidos con aclarado que contienen antioxidantes para proteccion de tejidos frente a la decoloracion. |
| US5474691A (en) * | 1994-07-26 | 1995-12-12 | The Procter & Gamble Company | Dryer-added fabric treatment article of manufacture containing antioxidant and sunscreen compounds for sun fade protection of fabrics |
| DE19747644C2 (de) * | 1997-10-29 | 2001-02-22 | Inst Polymerforschung Dresden | Sterisch gehinderte Phenole und Verfahren zu ihrer Herstellung |
| WO2004000923A1 (fr) * | 2002-06-24 | 2003-12-31 | The Procter & Gamble Company | Conditionnement de produits alimentaires |
| CN110105628A (zh) * | 2019-05-28 | 2019-08-09 | 池州万维化工有限公司 | 一种橡塑抗铜剂的生产工艺 |
| CN110092943A (zh) * | 2019-05-28 | 2019-08-06 | 池州万维化工有限公司 | 一种具有清洁效果的橡塑抗铜剂的制备方法 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3584047A (en) * | 1967-12-29 | 1971-06-08 | Geigy Chem Corp | Alkylhydroxyphenyl polyamides |
| US3773722A (en) * | 1969-03-28 | 1973-11-20 | Ciba Geigy Corp | Synthetic organic polymeric substances stabilized with alkylhydroxyphenyl-alkanoyl-hydrazines |
| US3933737A (en) * | 1970-08-22 | 1976-01-20 | Kabel-Und Metallwerke Gutehoffnungshutte Aktiengesellschaft | Polymer composition for bonding to copper |
| CH540954A (de) * | 1970-12-07 | 1973-08-31 | Ciba Geigy Ag | Stabilisatorsystem für Polyamide |
| US3708457A (en) * | 1971-02-16 | 1973-01-02 | Phillips Petroleum Co | Pigmented polyolefin compositions containing phthalocyanine compounds |
| GB1401917A (en) * | 1972-03-02 | 1975-08-06 | Ciba Geigy Ag | N-aoyl-n,-alkylhydroxyphenyl alkanoyl-hydrazines |
| DE2500314A1 (de) * | 1974-01-10 | 1975-07-17 | Ciba Geigy Ag | Stabilisierung von polyolefinen, die anorganische pigmente enthalten, gegen lichtabbau |
| JPS5241778B2 (fr) * | 1974-02-26 | 1977-10-20 |
-
1976
- 1976-07-14 US US05/705,233 patent/US4066610A/en not_active Expired - Lifetime
-
1977
- 1977-06-08 CA CA280,109A patent/CA1061924A/fr not_active Expired
- 1977-06-16 NO NO772119A patent/NO772119L/no unknown
- 1977-07-12 GB GB29312/77A patent/GB1539137A/en not_active Expired
- 1977-07-12 JP JP8264377A patent/JPS539846A/ja active Pending
- 1977-07-13 DK DK317977A patent/DK317977A/da not_active Application Discontinuation
- 1977-07-13 SE SE7708153A patent/SE425011B/xx unknown
- 1977-07-13 FR FR7721735A patent/FR2358438A1/fr active Pending
- 1977-07-14 BE BE179342A patent/BE856813A/fr not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DK317977A (da) | 1978-01-15 |
| JPS539846A (en) | 1978-01-28 |
| FR2358438A1 (fr) | 1978-02-10 |
| GB1539137A (en) | 1979-01-24 |
| CA1061924A (fr) | 1979-09-04 |
| SE7708153L (sv) | 1978-01-15 |
| BE856813A (fr) | 1977-10-31 |
| US4066610A (en) | 1978-01-03 |
| SE425011B (sv) | 1982-08-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| NO772119L (no) | Pigmentert polymersammensetning. | |
| US4668720A (en) | Flame resistant moulding compounds based on styrene polymers | |
| US3870680A (en) | Copper inhibitors for polyolefins | |
| GB2315070A (en) | Stabilizer mixtures for organic materials | |
| US4725634A (en) | Stabilizer for synthetic resins | |
| KR920002633B1 (ko) | 비황색화 중합체 조성물 | |
| EP0127356A2 (fr) | Dérivé de 2,2,6,6-tétraméthylpipéridine, sa production et son utilisation comme stabilisateur pour résines synthétiques | |
| US4578410A (en) | Piperidine derivatives, their production and stabilized polymer compositions containing same | |
| US5401797A (en) | Highly antioxidant olefinic resin composition | |
| AU718364B2 (en) | Use of piperidine compounds | |
| US4508883A (en) | Alternating copolymer of brominated styrene and N-brominated phenyl maleimide | |
| RU2066333C1 (ru) | Термопластичная полимерная композиция на основе эластомера | |
| US3790597A (en) | Sulfur derivatives of alkylhydroxyphenyl maleimides and compositions thereof | |
| US4721792A (en) | N,N',N",N'"-tetrakis(substituted benzyl)-acetylenecarbamide derivatives | |
| US3769259A (en) | Polymers containing diazepinone as an ultraviolet stabilizer | |
| US3436369A (en) | Polyolefins stabilized with substituted methylene piperidine methylene piperidine-1-oxides | |
| US5070124A (en) | Sulfide antioxidants for stabilizing crosslinked polyolefins | |
| US4448915A (en) | Acetylene carbamide derivatives, processes for their production, and antioxidants for organic substances which comprise such derivatives as active ingredients | |
| US4812494A (en) | Stabilized styrene polymer | |
| US4087405A (en) | Polyhydrazides as stabilizers for polyolefins | |
| NO173648B (no) | Organisk sulfid, samt anvendelse derav som stabilisator for polyolefinharpiks | |
| US4026963A (en) | N-(o or p-thiophenyl) substituted polyhalo-5-norbornene-2,3,-dicarboximide flame retardants and polymers containing said imides | |
| US3379678A (en) | Olefin polymer compositions containing thiazoline polysulfide stabilizing materials | |
| US3239483A (en) | Stabilization of polyisobutylene polymers with sulfur and benzotriazoles | |
| US4683084A (en) | Composition comprising a matrix resin, a flame retarding synergist, and an alternating copolymer of brominated styrene and N-brominated phenyl maleimide |