EP1981918A2 - Wässrige n-methylolmethacrylamid-methacrylamid-mischung - Google Patents
Wässrige n-methylolmethacrylamid-methacrylamid-mischungInfo
- Publication number
- EP1981918A2 EP1981918A2 EP06819208A EP06819208A EP1981918A2 EP 1981918 A2 EP1981918 A2 EP 1981918A2 EP 06819208 A EP06819208 A EP 06819208A EP 06819208 A EP06819208 A EP 06819208A EP 1981918 A2 EP1981918 A2 EP 1981918A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- methacrylamide
- aqueous
- methylolmethacrylamide
- solution
- mixture
- 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.)
- Ceased
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/52—Amides or imides
- C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
- C08F220/56—Acrylamide; Methacrylamide
Definitions
- the invention relates to a mixture of aqueous N-methylolmethacrylamide solution and methacrylamide and their uses.
- Methacrylamide as a polymerizable derivative of methacrylic acid is known per se and is commercially available (CAS No. 79-39-0).
- a problem in the commercial use of methacrylamide is its tendency to clump and cake in solid form and to develop fine dust. This requires the user consuming devices for handling and dosing of the material, such as tuber breaker and suction with the associated filters.
- Acrylamide has a neurotoxic and carcinogenic potential and is therefore used predominantly as an aqueous solution. This avoids contamination by dust formation and significantly reduces handling hazards. Since methacrylamide also has a certain neurotoxic potential, it is also desirable for this reason to provide a liquid commercial and transport form for methacrylamide as well. While acrylamide has a high water solubility, and as for example, 40 - 50% solution commercially available, methacrylamide is soluble at 2O 0 C only about 20 wt .-% in water.
- JP 57161196 produces a water-soluble copolymer of 70-95% by weight of methacrylamide and 5-30% by weight of N-methylolmethacrylamide. This copolymer is used as a binder. It is characterized by good viscosity stability and water resistance.
- SU 806676 describes the preparation of methylolmethacrylamide.
- a melt of methacrylamide with paraformaldehyde is reacted in the presence of a basic catalyst.
- Metacrylamide solutions in water have a low methacrylamide content, since the material is poorly soluble in water.
- solutions are marketed that contain at 20 0 C maximum about 16% methacrylamide.
- methacrylamide in methacrylic acid and water was dissolved, for example, in DE 102004032766.
- the proportion of methacrylamide in solution can be increased to over 35 wt .-% depending on the temperature.
- the solution is generally mixed with conventional stabilizers. These include phenols such as hydroquinone and hydroquinone monomethyl ether but also Cu ++ ions. Preference is given to hydroquinone monomethyl ether and Cu ++ ions. In some polymerization reactions, however, these stabilizers are undesirable.
- there are a variety of applications of methacrylamide which can not be performed in mixtures with methacrylic acid.
- Task was to provide a mixture with a higher proportion of methacrylamide, without methacrylic acid or stabilizers available.
- the object was achieved by a mixture comprising methacrylamide and aqueous N-methylolmethacrylamide solution.
- N, N'-methylenebis (methacrylamide) N, N'-methylenebis (methacrylamide).
- the mixtures according to the invention have good storage stability.
- the solubility of the methacrylamide in N-methylolmethacrylamide depends on the temperature and the concentration of the aqueous N-methylolmethacrylamide solution.
- N-methylolmethacrylamide solutions Preferably, 20-70% N-methylolmethacrylamide solutions, more preferably 60% N-Methylolmethacrylamid solutions are used.
- methacrylamide At room temperature, up to 30% by weight of methacrylamide, preferably 20-25% by weight, can then be dissolved in N-methylolmethacrylamide solutions. At elevated temperature, the proportion of methacrylamide which goes into solution, can be increased accordingly.
- the mixtures of methacrylamide in N-methylolmethacrylamide solutions are preferably used for the subsequent crosslinking of dispersions.
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006006200A DE102006006200B4 (de) | 2006-02-09 | 2006-02-09 | Wässrige N-Methylol-methacrylamid-Methacrylamid-Mischung |
PCT/EP2006/068000 WO2007090475A2 (de) | 2006-02-09 | 2006-10-31 | Wässrige n-methylolmethacrylamid-methacrylamid-mischung |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1981918A2 true EP1981918A2 (de) | 2008-10-22 |
Family
ID=38288614
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06819208A Ceased EP1981918A2 (de) | 2006-02-09 | 2006-10-31 | Wässrige n-methylolmethacrylamid-methacrylamid-mischung |
Country Status (7)
Country | Link |
---|---|
US (1) | US8057698B2 (de) |
EP (1) | EP1981918A2 (de) |
JP (1) | JP2009525995A (de) |
CN (1) | CN101309941A (de) |
DE (1) | DE102006006200B4 (de) |
TW (1) | TWI379823B (de) |
WO (1) | WO2007090475A2 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10314776A1 (de) * | 2003-03-31 | 2004-10-14 | Rohmax Additives Gmbh | Schmierölzusammensetzung mit guten Reibeigenschaften |
DE102008037207A1 (de) | 2008-08-11 | 2010-02-18 | Evonik Röhm Gmbh | Verfahren und Feststoffbehälter zur Herstellung einer wässrigen Methacrylamidlösung |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3887618A (en) * | 1974-02-28 | 1975-06-03 | American Cyanamid Co | Use of weak base resins as catalysts for the methylolation of acrylamide |
DE3031187A1 (de) * | 1980-08-18 | 1982-04-08 | Röhm GmbH, 6100 Darmstadt | Behandlung von leder mit hydrophilen acrylatharzen |
DE3414525A1 (de) * | 1984-04-17 | 1985-10-24 | Wacker-Chemie GmbH, 8000 München | Verfahren zur herstellung von waessrigen n-methylol(meth)acrylamid-loesungen |
US4617321A (en) | 1985-07-02 | 1986-10-14 | Ionics, Incorporated | Synthesis of highly cross-linked cation-exchange polymers from an aqueous solution |
DE4040959C1 (de) * | 1990-12-20 | 1992-03-12 | Wacker-Chemie Gmbh, 8000 Muenchen, De | |
DE4123853A1 (de) * | 1991-07-18 | 1993-01-21 | Basf Ag | Waessrige polymerisatdispersionen |
DE9110054U1 (de) * | 1991-08-14 | 1991-10-10 | Röhm GmbH, 64293 Darmstadt | Wäßriges Bindemittel für textile Flächengebilde |
JP3623855B2 (ja) * | 1996-05-21 | 2005-02-23 | 三菱レイヨン株式会社 | N−メチロール(メタ)アクリルアミドの製造方法 |
DE69811293T2 (de) | 1997-06-20 | 2003-10-23 | Rohm And Haas Co., Philadelphia | Polymerzusammensetzungen |
DE102004032766A1 (de) | 2004-07-06 | 2006-02-09 | Röhm GmbH & Co. KG | Konzentrierte wässrige Methacrylamidlösung unter Zugabe von Methacrylsäure |
DE102005044250A1 (de) | 2005-09-15 | 2007-03-29 | Röhm Gmbh | Verfahren zur Herstellung von Methacrylaten mit reaktiven Doppelbindungen |
DE102005060732A1 (de) | 2005-12-16 | 2007-06-21 | Röhm Gmbh | Verfahren zur Herstellung von Glycerincarbonat |
DE102006001771A1 (de) | 2006-01-12 | 2007-07-19 | Röhm Gmbh | Verfahren zur Aufreinigung von (Meth)acrylaten |
DE102006008998A1 (de) | 2006-02-23 | 2007-08-30 | Röhm Gmbh | Verfahren zur Herstellung von Alkoxypolyoxyalkylen(meth)acrylaten |
-
2006
- 2006-02-09 DE DE102006006200A patent/DE102006006200B4/de active Active
- 2006-10-31 US US12/092,507 patent/US8057698B2/en active Active
- 2006-10-31 EP EP06819208A patent/EP1981918A2/de not_active Ceased
- 2006-10-31 WO PCT/EP2006/068000 patent/WO2007090475A2/de active Application Filing
- 2006-10-31 JP JP2008553637A patent/JP2009525995A/ja active Pending
- 2006-10-31 CN CNA2006800427246A patent/CN101309941A/zh active Pending
-
2007
- 2007-02-06 TW TW096104299A patent/TWI379823B/zh active
Non-Patent Citations (1)
Title |
---|
See references of WO2007090475A2 * |
Also Published As
Publication number | Publication date |
---|---|
TWI379823B (en) | 2012-12-21 |
JP2009525995A (ja) | 2009-07-16 |
DE102006006200A1 (de) | 2007-08-23 |
CN101309941A (zh) | 2008-11-19 |
DE102006006200B4 (de) | 2008-01-10 |
TW200740726A (en) | 2007-11-01 |
WO2007090475A2 (de) | 2007-08-16 |
US8057698B2 (en) | 2011-11-15 |
WO2007090475A3 (de) | 2008-03-20 |
US20080287629A1 (en) | 2008-11-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2849617C2 (de) | ||
DE1745063B2 (de) | Unter anaeroben Bedingungen rasch härtende Ablichtungsmassen auf der Basis von Acrylsäureestern mehrwertiger Alkohole | |
LU83339A1 (de) | Brennstoffbriketts | |
DE3025094A1 (de) | Vernetzte cellulosesulfatester, deren herstellung und verwendung | |
DE1571298B2 (de) | Bindemittel für Putz- und/oder Mauermörtel sowie unter Verwendung dieses Bindemittels hergestellter Mörtel | |
DE102006006200B4 (de) | Wässrige N-Methylol-methacrylamid-Methacrylamid-Mischung | |
EP0153671B1 (de) | Stabilisierte, Wasser enthaltende, alkalisch eingestellte Natriumdithionitzubereitungen | |
DE68928566T2 (de) | Zusammensetzung und ihre Verwendung | |
DE2148185C3 (de) | Polymerisationsinhibitor fuer polymerisierbare vinylgruppenhaltige aliphatische, aromatische und heterocyclische verbindungen | |
EP1211942B1 (de) | Verfahren zur herstellung von polyvinylpyrrolidon-iod in wässriger lösung | |
DE1595544A1 (de) | Kationische Carbamoylpolymerisate | |
EP0175202B1 (de) | Wasserlösliche Polymere sowie Verfahren zu ihrer Herstellung | |
EP1763504A1 (de) | Konzentrierte wässrige methacrylamidlösung unter zugabe von methacrylsäure | |
EP0037996A1 (de) | Verfahren zur Herstellung von Aminoxiden und deren Verwendung als Tenside | |
EP0278061A2 (de) | Aktivkohlegranulate sowie Verfahren zu ihrer Herstellung | |
DE2412266A1 (de) | Wasserloesliche polymerisate | |
EP0140218B1 (de) | Stabilisierte, inerte organische Flüssigkeiten enthaltende Natriumdithionitzubereitungen und deren Verwendung | |
DE602004011664T2 (de) | Verfahren zur agglomerisierung von gebrauchtem material bzw. feinanteilen aus der produktion von organohalogensilanen | |
DE1745283A1 (de) | Verfahren zur industriellen Herstellung von Polymerisationsprodukten von Zusammensetzungen auf der Grundlage von Vinylchlorid,die wenigstens teilweise durch Vinylchlorid gepfropfte Copolymere auf der Grundlage von Vinylacetat und AEthylen enthalten,und nach diesem Verfahren hergestellte Erzeugnisse | |
DE2230505C2 (de) | Telomere und deren Verwendung zum Stabilisieren wässeriger Formaldehydlösungen | |
DE2520028C3 (de) | Flüssige, pumpfähige, stabile Dispersionen vom Typ Wasser-in-Öl und ihre Verwendung | |
DE3328742A1 (de) | Verfahren zur herstellung von schleifwerkzeugen, insbesondere von schleifscheiben, schleifsegmenten, schleifsteinen und schleiffeilen | |
DE446162C (de) | Verfahren zur Herstellung haltbarer Emulsionen, Suspensionen und Kolloid-Dispersionen | |
EP3122853B1 (de) | Flüssige kationische formulierung und verfahren zu deren herstellung | |
DE1060602B (de) | Verfahren zur Herstellung wasserloeslicher Polyacrylamide |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20080602 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA HR MK RS |
|
17Q | First examination report despatched |
Effective date: 20081217 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: EVONIK ROEHM GMBH |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: EVONIK ROEHM GMBH |
|
DAX | Request for extension of the european patent (deleted) | ||
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R003 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED |
|
18R | Application refused |
Effective date: 20120920 |