WO2013045319A1 - Verfahren zur herstellung von polyamiden durch anionische polymerisation - Google Patents
Verfahren zur herstellung von polyamiden durch anionische polymerisation Download PDFInfo
- Publication number
- WO2013045319A1 WO2013045319A1 PCT/EP2012/068388 EP2012068388W WO2013045319A1 WO 2013045319 A1 WO2013045319 A1 WO 2013045319A1 EP 2012068388 W EP2012068388 W EP 2012068388W WO 2013045319 A1 WO2013045319 A1 WO 2013045319A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- activator
- caprolactam
- polyamide
- lactam
- protected
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/80—Masked polyisocyanates
- C08G18/8061—Masked polyisocyanates masked with compounds having only one group containing active hydrogen
- C08G18/807—Masked polyisocyanates masked with compounds having only one group containing active hydrogen with nitrogen containing compounds
- C08G18/8074—Lactams
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/08—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from amino-carboxylic acids
- C08G69/14—Lactams
- C08G69/16—Preparatory processes
- C08G69/18—Anionic polymerisation
- C08G69/20—Anionic polymerisation characterised by the catalysts used
Definitions
- the present invention relates to a process for the preparation of polyamides, preferably crosslinked polyamides, by anionic polymerization of lactams in the presence of an anionic catalyst and a caprolactam-protected polyisocyanate, this isocyanate containing more than 3.5 protected isocyanate groups.
- Lactams such as caprolactam
- a catalyst and an initiator is usually used (activated anionic polymerization).
- EP 1091991 discloses a composition containing as component A a polyisocyanurate having an average NCO functionality of more than 3.5 and a process for the preparation of a surface coating composition using the composition described.
- US 3423372 uses an unprotected polyisocyanate, which significantly reduces the reactivity, with very low activator concentration in the examples (1 / 200-1 / 50 molar). At the concentrations used in the US patent, polymerization takes more than 3 minutes.
- EP 0156129 uses a rubber (ie an elastomer) as a precursor of the multifunctional activator, therefore the resulting PA with max. 1, 12 GPa not stiff.
- This activator has a high Mw, requiring a large amount of activator (at least 20%).
- a mixture of a bifunctional and a polyfunctional activator is used; As a consequence, the resulting polyamide is not crosslinked.
- cast polymerization and “cast polyamide” in the context of the present invention refer to the polymerization in one mold, in particular the polymerization in a mold without the use of elevated pressure (as is customary in injection molding, for example) resulting polyamide.
- the subject matter of the present invention is thus a process for the preparation of polyamide, preferably crosslinked polyamide, by anionic polymerization of at least one lactam in the presence of an anionic catalyst and an activator, wherein the activator is a caprolactam-protected polyisocyanate and has on average more than 3.5 contains protected isocyanate groups, preferably at least four, more preferably at least 5, most preferably at least 8, and most preferably at least 10, wherein the molar ratio of lactam to activator is preferably 1: 1 to 10,000: 1, more preferably 10: 1 to 1, 000: 1 and very particularly preferably 20: 1 to 500, and wherein the temperature during the reaction is preferably 70 to 300 ° C, more preferably 100 to 170 ° C, most preferably 120 to 170 ° C.
- crosslinked polyamide means that at least one crosslinking point is present per polymer chain.
- protected isocyanate group in the context of the present invention refers to an isocyanate group which has a different functional group, such as, for example, As a caprolactam group is blocked.
- This group then acts as a "protecting group” and blocks the isocyanate group during the reaction.
- Additional objects of the present invention are a polyamide, preferably crosslinked polyamide, preparable by the process according to the invention, and the use of a polyamide, preferably crosslinked, which can be prepared by the process according to the invention Polyamide, as a structural element, packaging film, powder for laser sintering, coating and / or in the case of rotomolding.
- the initiator contains on average at least four, more preferably five protected isocyanate groups.
- the initiator contains on average at least eight, more preferably at least ten protected isocyanate groups.
- the number of protected isocyanate groups in the initiator (activator) is calculated as the average of the total initiator used, which may be a mixture of different compounds. Since in the preparation of the initiator, for example by oligomerization of diisocyanates, as a rule no pure products but compounds with different degrees of oligomerization are formed, the functionality of the resulting compounds can only be given as an average value.
- the proportion of protected isocyanate groups can be determined by titration. Here, for example, the protected isocyanate-containing compound or mixture with amine compounds, such as.
- the initiator can be prepared analogously to the process described in EP 1 091 991 B1 (see in particular sections [0026] to [0030]).
- the initiator is an isocyanurate; In a further embodiment of the invention, the initiator can be prepared from a polyol or a polyamine. However, the activator preferably contains no polyol.
- acid halides with an average of more than 3.5 protected acid halide groups are also suitable.
- Suitable lactams include caprolactam, piperidone, pyrrolydone, laurolactam or mixtures thereof.
- a compound from the group comprising caprolactam, lauryl lactam or mixtures thereof is used; Particularly preferred are caprolactam or laurolactam.
- Cyclic lactones can also be copolymerized.
- Suitable catalysts include sodium caprolactamate, potassium caprolactamate, bromide magnesium caprolactamate, chloride magnesium caprolactamate, magnesium biscaprolactamate, sodium hydrides, sodium metal, sodium hydroxide, sodium methoxide, sodium ethoxide, sodium propoxide, sodium butoxide, potassium hydride, potassium metal, potassium hydroxide, potassium methoxide, potassium ethoxide, potassium propoxide, potassium butoxide.
- the catalyst for the process according to the invention is preferably selected from the group comprising sodium hydrides, sodium metal, sodium caprolactamate; Particular preference is given to sodium caprolactamate (eg Bruggolen® C 10, a solution of 18% by weight of sodium caprolactamate in caprolactam).
- the polymer may of course also be mixed with one or more of the usual additives, for example flow improvers, stabilizers, mold release agents, flame retardants, fillers (eg organic and / or inorganic fillers), lubricants, polymers soluble or dispersed in the monomers, prepolymers.
- the molar ratio of lactam to catalyst can be varied within wide limits, is generally 1: 1 to 10,000: 1, preferably 10: 1 to 1000: 1, particularly preferably 20: 1 to 300: 1.
- the molar ratio of activator to catalyst can be varied within wide limits, is generally 10: 1 to 1: 100, preferably 5: 1 to 1:10, particularly preferably 2: 1 to 1: 5.
- the molar ratio of lactam to activator can be varied within wide limits, is usually 1: 1 to 10,000: 1, preferably 10: 1 to 1 .000: 1, particularly preferably 20: 1 to 500: 1.
- the temperature during the reaction can be varied within wide limits; It is usually 70 to 300 ° C, preferably 100 to 170 ° C, particularly preferably 120 to 170 ° C.
- exactly one lactam, exactly one catalyst and exactly one initiator is used.
- the process according to the invention can be carried out inter alia as cast polymerization, spray polymerization, reactive extrusion, dispersion polymerization or rotomolding.
- the molecular weight (M w ) of the polyamide products is increased.
- polyamides which can be prepared according to the invention can be used inter alia as structural materials in the automotive industry in interior, exterior, body or chassis such as passenger compartment, underbody, support structures, fenders, inliners for tanks, gears, housings, and as packaging films, powder for laser sintering, coating , as well as the Rotomolding. Examples
- Hexamethylene diisocyanate (HDI) was charged under nitrogen blanketing and the product heated to 80 ° C. 400 ppm by weight (based on the diisocyanate) of the catalyst ⁇ , ⁇ , ⁇ -trimethyl-N- (2-hydroxypropyl) ammonium 2-ethylhexanoate were added, the mixture was allowed to react at 80 ° C. and the reaction was stopped at the desired NCO Content of the crude product by adding 400 ppm by weight (based on diisocyanate) of di-2- (ethylhexyl) phosphate. The reaction mixture was then distilled to remove monomeric HDI in the thin film evaporator at elevated temperature and reduced pressure (2.5 mbar). The HDI residual monomer content was below 0.3% by weight.
- Initiator A1 80% by weight of protected aliphatic polyisocyanates mixed with caprolactam at 80 ° C. for 30 minutes, so that 44.97% by weight of protected polyisocyanates in 55.03% by weight of caprolactam are obtained.
- Initiator A2 contains 22.49% by weight of protected aliphatic polyisocyanates in 77.51% by weight of caprolactam
- Unprotected initiators (without caprolactam) can also be used according to the invention.
- VZ viscosity number
- caprolactam was determined by chromatography.
- the DSC measurements were carried out on the Q-2000 calorimeter of the FA. Waters GmbH. The initial weight was about 8.5 mg - the heating and cooling rate 20K / min. The samples were measured on the basis of ISO 1 1357 - 2, 3, u. 7. As a reference, a melting enthalpy of 220 J / g was assumed for a 100% crystalline polyamide. Comparative Example A
- the polymer contains 1, 5% residual caprolactam and has a solution viscosity of 185.
- the polymer contains 1.8% residual caprolactam.
- the VZ of the polymer can not be measured because it is insoluble in sulfuric acid solution.
- the polymer contains 2.3% rest of caprolactam.
- the VZ of the polymer can not be measured because it is insoluble in sulfuric acid solution. A crystallinity of 18% was measured.
- test results thus show that the initiator according to the invention or the process according to the invention gives polyamides having an increased molecular weight (and thus increased viscosity) as well as a stronger crosslinking (and thus lower crystallinity) than conventional processes.
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyamides (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12761613.4A EP2760906B1 (de) | 2011-09-28 | 2012-09-19 | Verfahren zur herstellung von polyamiden durch anionische polymerisation |
IN3053CHN2014 IN2014CN03053A (de) | 2011-09-28 | 2012-09-19 | |
KR1020147010993A KR101944144B1 (ko) | 2011-09-28 | 2012-09-19 | 음이온 중합을 통한 폴리아미드의 제조 방법 |
CN201280046923.XA CN103842400B (zh) | 2011-09-28 | 2012-09-19 | 通过阴离子聚合制备聚酰胺的方法 |
BR112014007052A BR112014007052A2 (pt) | 2011-09-28 | 2012-09-19 | processo para produzir poliamida, poliamida, e, uso de uma poliamida |
JP2014532318A JP2014528018A (ja) | 2011-09-28 | 2012-09-19 | アニオン重合によりポリアミドを製造する方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11183118 | 2011-09-28 | ||
EP11183118.6 | 2011-09-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013045319A1 true WO2013045319A1 (de) | 2013-04-04 |
Family
ID=46880715
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2012/068388 WO2013045319A1 (de) | 2011-09-28 | 2012-09-19 | Verfahren zur herstellung von polyamiden durch anionische polymerisation |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP2760906B1 (de) |
JP (1) | JP2014528018A (de) |
KR (1) | KR101944144B1 (de) |
CN (1) | CN103842400B (de) |
BR (1) | BR112014007052A2 (de) |
IN (1) | IN2014CN03053A (de) |
WO (1) | WO2013045319A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9834885B2 (en) | 2012-12-04 | 2017-12-05 | Basf Se | Process for the production of a fiber-reinforced composite material |
WO2018041642A1 (de) * | 2016-09-05 | 2018-03-08 | Basf Se | Verfahren zur herstellung eines polyamids mit kaliumlactamat |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102262512B1 (ko) * | 2017-11-16 | 2021-06-08 | 한화솔루션 주식회사 | 배위-음이온 개환 중합에 의한 폴리아마이드의 제조 방법 및 이에 의해 제조된 폴리아마이드 |
KR102275688B1 (ko) * | 2017-11-28 | 2021-07-12 | 한화솔루션 주식회사 | 말단 봉지재를 이용한 폴리아마이드의 제조 방법 및 이에 의해 제조된 폴리아마이드 |
CN110066372A (zh) * | 2019-04-23 | 2019-07-30 | 常熟市江南粘合剂有限公司 | 一种聚异氰酸酯尼龙助催化剂 |
US20220372221A1 (en) * | 2019-12-06 | 2022-11-24 | Hanwha Solutions Corporation | Process for Preparing Polyamide by Anionic Polymerization and Polyamide Prepared Thereby |
JP7476719B2 (ja) | 2020-08-13 | 2024-05-01 | Ube株式会社 | ポリアミドの製造方法 |
CN117024951B (zh) * | 2023-10-10 | 2024-01-09 | 季华合越科技(佛山)有限公司 | 一种树脂组合物及玻璃纤维复合材料、其制备方法和应用 |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
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US3423372A (en) | 1963-03-11 | 1969-01-21 | Polymer Corp | Polylactams produced by the anionic polymerization of higher lactams using polymethylene polyphenyl isocyanate as promoter |
EP0023626A1 (de) * | 1979-07-19 | 1981-02-11 | Hüls Aktiengesellschaft | Herstellung von freie NCO- und endständig mit Epsilon-Caprolactam blockierte NCO-Gruppen enthaltenden Isophorondiisocyanataddukten, sowie danach hergestellte Verbindungen |
EP0134616A1 (de) * | 1983-08-20 | 1985-03-20 | Stamicarbon B.V. | N-substituierte Carbamoyl-Lactam-Verbindung |
EP0156129A1 (de) | 1984-02-09 | 1985-10-02 | Stamicarbon B.V. | Verfahren zur Herstellung von einer Nylon-Blockcopolymer-Zusammensetzung |
EP0158393A1 (de) * | 1984-03-22 | 1985-10-16 | Stamicarbon B.V. | Verfahren zur Herstellung einer N-substituierten Carbamoyllactam-Verbindung |
EP0159070A1 (de) * | 1984-03-22 | 1985-10-23 | Stamicarbon B.V. | N-substituiertes Carbamoyl-Lactam |
US4754000A (en) | 1984-07-10 | 1988-06-28 | Bayer Aktiengesellschaft | Activated anionic polymerization of lactams |
EP0755966A1 (de) * | 1995-07-25 | 1997-01-29 | Ems-Inventa Ag | Thermoplastisch verformbare Verbundwerkstoffe |
EP1091991A1 (de) | 1998-06-29 | 2001-04-18 | Basf Aktiengesellschaft | Hochviskose polyisocyanate enthaltende zusammensetzungen |
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DE2732662A1 (de) * | 1977-07-20 | 1979-02-01 | Veba Chemie Ag | Isocyanuratgruppen - und endstaendig- blockierte isocyanatgruppen-enthaltende verbindungen |
US4614615A (en) * | 1984-03-22 | 1986-09-30 | Kaneyoshi Ashida | Process for preparing an N-substituted carbamoyl-lactam compound |
DE3936022A1 (de) * | 1989-10-28 | 1991-05-02 | Bayer Ag | Lactamschmelzen mit erhoehter viskositaet und ihre verwendung |
BE1006896A3 (nl) * | 1993-03-01 | 1995-01-17 | Dsm Nv | Lactampolymerisatie in aanwezigheid van cyclische polyisocyanaat-trimeren. |
FR2855768B1 (fr) * | 2003-05-21 | 2006-06-16 | Rhodia Chimie Sa | Compositions a base d'isocyanate, leur procede d'utilisation pour realiser des vetements et revetements ainsi obtenus |
DE102008000352A1 (de) * | 2008-02-20 | 2009-08-27 | Rhein Chemie Rheinau Gmbh | Gusspolyamid-Herstellung unter Verwendung spezieller Aktivatoren |
-
2012
- 2012-09-19 IN IN3053CHN2014 patent/IN2014CN03053A/en unknown
- 2012-09-19 BR BR112014007052A patent/BR112014007052A2/pt not_active Application Discontinuation
- 2012-09-19 EP EP12761613.4A patent/EP2760906B1/de not_active Not-in-force
- 2012-09-19 JP JP2014532318A patent/JP2014528018A/ja active Pending
- 2012-09-19 KR KR1020147010993A patent/KR101944144B1/ko active IP Right Grant
- 2012-09-19 CN CN201280046923.XA patent/CN103842400B/zh active Active
- 2012-09-19 WO PCT/EP2012/068388 patent/WO2013045319A1/de active Application Filing
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US3423372A (en) | 1963-03-11 | 1969-01-21 | Polymer Corp | Polylactams produced by the anionic polymerization of higher lactams using polymethylene polyphenyl isocyanate as promoter |
EP0023626A1 (de) * | 1979-07-19 | 1981-02-11 | Hüls Aktiengesellschaft | Herstellung von freie NCO- und endständig mit Epsilon-Caprolactam blockierte NCO-Gruppen enthaltenden Isophorondiisocyanataddukten, sowie danach hergestellte Verbindungen |
EP0134616A1 (de) * | 1983-08-20 | 1985-03-20 | Stamicarbon B.V. | N-substituierte Carbamoyl-Lactam-Verbindung |
EP0156129A1 (de) | 1984-02-09 | 1985-10-02 | Stamicarbon B.V. | Verfahren zur Herstellung von einer Nylon-Blockcopolymer-Zusammensetzung |
EP0158393A1 (de) * | 1984-03-22 | 1985-10-16 | Stamicarbon B.V. | Verfahren zur Herstellung einer N-substituierten Carbamoyllactam-Verbindung |
EP0159070A1 (de) * | 1984-03-22 | 1985-10-23 | Stamicarbon B.V. | N-substituiertes Carbamoyl-Lactam |
US4754000A (en) | 1984-07-10 | 1988-06-28 | Bayer Aktiengesellschaft | Activated anionic polymerization of lactams |
EP0755966A1 (de) * | 1995-07-25 | 1997-01-29 | Ems-Inventa Ag | Thermoplastisch verformbare Verbundwerkstoffe |
EP1091991A1 (de) | 1998-06-29 | 2001-04-18 | Basf Aktiengesellschaft | Hochviskose polyisocyanate enthaltende zusammensetzungen |
EP1091991B1 (de) | 1998-06-29 | 2003-11-19 | Basf Aktiengesellschaft | Hochviskose polyisocyanate enthaltende zusammensetzungen |
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"Co-Katalysatoren", pages 1, XP002686162, Retrieved from the Internet <URL:http://www.pacast.net/node/8> [retrieved on 20121029] * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9834885B2 (en) | 2012-12-04 | 2017-12-05 | Basf Se | Process for the production of a fiber-reinforced composite material |
WO2018041642A1 (de) * | 2016-09-05 | 2018-03-08 | Basf Se | Verfahren zur herstellung eines polyamids mit kaliumlactamat |
Also Published As
Publication number | Publication date |
---|---|
KR20140073536A (ko) | 2014-06-16 |
EP2760906B1 (de) | 2017-03-01 |
CN103842400A (zh) | 2014-06-04 |
BR112014007052A2 (pt) | 2017-03-28 |
CN103842400B (zh) | 2015-04-22 |
IN2014CN03053A (de) | 2015-07-03 |
EP2760906A1 (de) | 2014-08-06 |
JP2014528018A (ja) | 2014-10-23 |
KR101944144B1 (ko) | 2019-01-30 |
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