GB1092657A - Improvements relating to the stabilization of aqueous formaldehyde solutions - Google Patents
Improvements relating to the stabilization of aqueous formaldehyde solutionsInfo
- Publication number
- GB1092657A GB1092657A GB5103364A GB5103364A GB1092657A GB 1092657 A GB1092657 A GB 1092657A GB 5103364 A GB5103364 A GB 5103364A GB 5103364 A GB5103364 A GB 5103364A GB 1092657 A GB1092657 A GB 1092657A
- Authority
- GB
- United Kingdom
- Prior art keywords
- formaldehyde
- guanamine
- formula
- polyhydric alcohol
- hydrocarbyl
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/78—Separation; Purification; Stabilisation; Use of additives
- C07C45/86—Use of additives, e.g. for stabilisation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Phenolic Resins Or Amino Resins (AREA)
Abstract
Formaldehyde condensates are prepared by reacting under alkaline or acidic conditions: (1) a guanamine of the formula <FORM:1092657/C3/1> in which R is an alkyl or aryl group, with an alkanol and formaldehyde; (2) a hydrocarbyl melamine of the formula <FORM:1092657/C3/2> in which R1 is an alkyl, cycloalkyl, aryl or aralkyl group, with a polyhydric alcohol and formaldehyde; and (3) a guanamine of the above formula, a polyhydric alcohol and formaldehyde. Examples relate to the condensation of formaldehyde, a guanamine or a melamine and methanol, glycerol, sorbitol, triethylene glycol, 1,1,1-trimethylolpropane, 1,2-propylene glycol, ethylene glycol, pentaerythritol, and polypropylene glycol. Example 8 describes the preparation of a condensate of polyvinyl alcohol, formaldehyde and benzoguanamine.ALSO:Aqueous formaldehyde solutions which contain at least 37% by weight formaldehyde are stabilized by dissolving therein less than 1000 p.p.m. by wt. of solution of one or more stabilizing agents selected from (1) alkoxymethylated guanamines obtained under alkaline or acid conditions from an alkanol formaldehyde and a guanamine of the formula <FORM:1092657/C2/1> wherein R is an alkyl or aryl group; (2) a condensation product, obtained under acid or alkaline conditions, of a polyhydric alcohol, formaldehyde and an hydrocarbyl melamine of the formula <FORM:1092657/C2/2> wherein R1 is an alkyl, cycloalkyl, aryl or aralkyl radical; (3) a product obtained by reacting under acid or alkaline conditions, a polyhydric alcohol and an alkoxymethylated hydrocarbyl melamine derived from the hydrocarbyl melamines of Formula II; (4) a product obtained by reacting under acid or alkaline conditions a polyhydric alcohol, formaldehyde or a guanamine of the Formula I; and (5) a product obtained by reacting under acid or alkaline conditions a polyhydric alcohol and an alkoxymethylated guanamine (the guanamine being the same as that stated in (1)). Preferred guanamines are aceto-, propio-, butyro- and benzo-guanamines, preferred hydrocarbyl melamines, methyl-, ethyl-, propyl-butyl-, cyclohexyl-, benzyl- and phenyl-melamines, preferred alkanols, methanol, ethanol, propanol, and butanol and preferred polyhydric alcohols, polyvinyl alcohol (see Division C3), ethylene glycol, 1,2-propylene glycol, polyethylene glycol, polypropylene glycol, glycerol, 1,1,1-trimethylol propane, pentaerythritol and sorbitol. The stabilizers may be prepared and added to the formaldehyde solution, which preferably also contains small amounts of methanol, without prior isolation of the reaction products. Examples are provided.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7103763 | 1963-12-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1092657A true GB1092657A (en) | 1967-11-29 |
Family
ID=13448909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5103364A Expired GB1092657A (en) | 1963-12-28 | 1964-12-15 | Improvements relating to the stabilization of aqueous formaldehyde solutions |
Country Status (8)
| Country | Link |
|---|---|
| AT (2) | AT264486B (en) |
| CH (1) | CH434224A (en) |
| DE (1) | DE1268608B (en) |
| FI (1) | FI40894B (en) |
| GB (1) | GB1092657A (en) |
| NL (2) | NL6415100A (en) |
| NO (1) | NO117850B (en) |
| SE (1) | SE320961B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019120761A1 (en) * | 2017-12-22 | 2019-06-27 | Clariant International Ltd | Synergized acetals composition and method for scavenging sulfides and mercaptants |
| US11530347B2 (en) | 2016-07-01 | 2022-12-20 | Clariant International Ltd | Synergized acetals composition and method for scavenging sulfides and mercaptans |
| US11603497B2 (en) | 2017-12-22 | 2023-03-14 | Clariant International Ltd | Synergized acetals composition and method for scavenging sulfides and mercaptans |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1067560B (en) * | 1976-11-19 | 1985-03-16 | Montedison Spa | PROCESS FOR THE PREPARATION OF STABLE WATER SUSPENSIONS OF FORMALDEHYDE AND PRODUCTS OBTAINED |
| DE2919496A1 (en) | 1979-05-15 | 1980-12-04 | Degussa | NEW BISGUANAMINE |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1336037A (en) * | 1962-10-17 | 1963-08-23 | Montedison Spa | Stable aqueous solutions of formaldehyde and method of preparation |
-
1964
- 1964-12-15 GB GB5103364A patent/GB1092657A/en not_active Expired
- 1964-12-21 NO NO15608764A patent/NO117850B/no unknown
- 1964-12-22 FI FI273164A patent/FI40894B/fi active
- 1964-12-23 AT AT1091864A patent/AT264486B/en active
- 1964-12-23 DE DEP1268A patent/DE1268608B/en active Pending
- 1964-12-23 SE SE1565264A patent/SE320961B/xx unknown
- 1964-12-23 AT AT818266A patent/AT265228B/en active
- 1964-12-24 CH CH1665064A patent/CH434224A/en unknown
- 1964-12-24 NL NL6415100A patent/NL6415100A/xx unknown
-
1971
- 1971-04-29 NL NL7105917A patent/NL7105917A/xx unknown
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11530347B2 (en) | 2016-07-01 | 2022-12-20 | Clariant International Ltd | Synergized acetals composition and method for scavenging sulfides and mercaptans |
| WO2019120761A1 (en) * | 2017-12-22 | 2019-06-27 | Clariant International Ltd | Synergized acetals composition and method for scavenging sulfides and mercaptants |
| US20190194523A1 (en) * | 2017-12-22 | 2019-06-27 | Clariant International, Ltd. | Synergized hemiacetals composition and method for scavenging sulfides and mercaptans |
| CN111163855A (en) * | 2017-12-22 | 2020-05-15 | 科莱恩国际有限公司 | Synergistic acetal compositions and methods for scavenging sulfides and mercaptans |
| US11555140B2 (en) * | 2017-12-22 | 2023-01-17 | Clariant International Ltd | Synergized hemiacetals composition and method for scavenging sulfides and mercaptans |
| US11603497B2 (en) | 2017-12-22 | 2023-03-14 | Clariant International Ltd | Synergized acetals composition and method for scavenging sulfides and mercaptans |
Also Published As
| Publication number | Publication date |
|---|---|
| FI40894B (en) | 1969-03-31 |
| CH434224A (en) | 1967-04-30 |
| NO117850B (en) | 1969-10-06 |
| AT265228B (en) | 1968-10-10 |
| SE320961B (en) | 1970-02-23 |
| AT264486B (en) | 1968-09-10 |
| NL7105917A (en) | 1971-07-26 |
| DE1268608B (en) | 1968-05-22 |
| NL6415100A (en) | 1965-06-29 |
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