ES138397A1 - PROCEDURE FOR OBTAINING CONDENSATION PRODUCTS FROM UREA, FORMALDEHYDE AND HEXAMETHYLENTETRAMINE. - Google Patents
PROCEDURE FOR OBTAINING CONDENSATION PRODUCTS FROM UREA, FORMALDEHYDE AND HEXAMETHYLENTETRAMINE.Info
- Publication number
- ES138397A1 ES138397A1 ES0138397A ES138397A ES138397A1 ES 138397 A1 ES138397 A1 ES 138397A1 ES 0138397 A ES0138397 A ES 0138397A ES 138397 A ES138397 A ES 138397A ES 138397 A1 ES138397 A1 ES 138397A1
- Authority
- ES
- Spain
- Prior art keywords
- formaldehyde
- urea
- mixed
- product
- yield
- 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
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 title abstract 36
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title abstract 19
- 239000004202 carbamide Substances 0.000 title abstract 9
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 title abstract 9
- 239000007859 condensation product Substances 0.000 title abstract 6
- 238000000034 method Methods 0.000 title 1
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 abstract 9
- 239000004312 hexamethylene tetramine Substances 0.000 abstract 4
- 235000010299 hexamethylene tetramine Nutrition 0.000 abstract 4
- 238000000465 moulding Methods 0.000 abstract 4
- 239000000843 powder Substances 0.000 abstract 4
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 abstract 4
- 235000006408 oxalic acid Nutrition 0.000 abstract 3
- 239000000047 product Substances 0.000 abstract 3
- DLFVBJFMPXGRIB-UHFFFAOYSA-N Acetamide Chemical compound CC(N)=O DLFVBJFMPXGRIB-UHFFFAOYSA-N 0.000 abstract 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 2
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 abstract 2
- ZHNUHDYFZUAESO-UHFFFAOYSA-N Formamide Chemical compound NC=O ZHNUHDYFZUAESO-UHFFFAOYSA-N 0.000 abstract 2
- 239000003377 acid catalyst Substances 0.000 abstract 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 abstract 1
- YIKSCQDJHCMVMK-UHFFFAOYSA-N Oxamide Chemical compound NC(=O)C(N)=O YIKSCQDJHCMVMK-UHFFFAOYSA-N 0.000 abstract 1
- 229930040373 Paraformaldehyde Natural products 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 150000007513 acids Chemical class 0.000 abstract 1
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 239000001913 cellulose Substances 0.000 abstract 1
- 229920002678 cellulose Polymers 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 150000007522 mineralic acids Chemical class 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 150000007524 organic acids Chemical class 0.000 abstract 1
- 235000005985 organic acids Nutrition 0.000 abstract 1
- ZYMJSAWYDBRZIC-UHFFFAOYSA-N oxalic acid phosphoric acid Chemical compound OP(O)(O)=O.OC(=O)C(O)=O.OC(=O)C(O)=O.OC(=O)C(O)=O ZYMJSAWYDBRZIC-UHFFFAOYSA-N 0.000 abstract 1
- 229920002866 paraformaldehyde Polymers 0.000 abstract 1
- 150000002989 phenols Chemical class 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- IHRQVOBHLWHVSE-UHFFFAOYSA-N sulfamide;toluene Chemical compound NS(N)(=O)=O.CC1=CC=CC=C1 IHRQVOBHLWHVSE-UHFFFAOYSA-N 0.000 abstract 1
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
- C08G12/00—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
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
Condensation products of urea, formaldehyde and hexamethylenetetramine incapable of being hardened and prepared from less than 1 molecular proportion of formaldehyde and less than 0.1 molecular proportions of hexamethylenetetramine per molecular proportion of urea are converted into condensation products capable of being hardened by treatment with so much formaldehyde that the molecular rate of urea to formaldehyde is at least 1 : 1 and advantageously about 1 : 1.5. The treatment may take place in the presence or absence of heat and acid catalysts. In the manufacture of the non-hardening condensation products acid catalysts may be used and mixtures of urea with other substances which react with formaldehyde such as phenols, toluene sulphamide, acetamide, formamide, oxamide, urethane and aniline may replace urea. Oxalic acid phosphoric acid, other inorganic acids, organic acids and bodies yielding acids are specified as catalysts In examples; (1) a condensation product of urea, thiourea, hexamethylenetetramine and formaldehyde made in the presence of oxalic acid, is mixed with aqueous formaldehyde and the product kneaded with cellulose to yield a moulding powder which may be moulded (2) a condensation product of urea, hexamethylenetetramine and formaldehyde is mixed with aqueous formaldehyde to yield a product which, with the addition of oxalic acid, may be worked up into a moulding powder; (3) urea, thiourea and formaldehyde are mixed in the presence of ammonia and condensed in the presence of oxalic acid to yield a product which is mixed with aqueous formaldehyde and worked up to yield a moulding powder; (4) a moulding powder made as in the previous examples is mixed with paraformaldehyde. Specifications 429,346 and 438,887 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH439932X | 1934-05-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES138397A1 true ES138397A1 (en) | 1935-09-01 |
Family
ID=4515165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES0138397A Expired ES138397A1 (en) | 1934-05-29 | 1935-05-27 | PROCEDURE FOR OBTAINING CONDENSATION PRODUCTS FROM UREA, FORMALDEHYDE AND HEXAMETHYLENTETRAMINE. |
Country Status (2)
| Country | Link |
|---|---|
| ES (1) | ES138397A1 (en) |
| GB (1) | GB439932A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2194029B (en) * | 1986-07-01 | 1989-12-20 | Andrews Group Plc | Grain dryer |
| UA79720C2 (en) * | 2006-09-29 | 2007-07-10 | Ukrvodbezpeka Scient And Techn | A method for obtaining polyguanidines |
-
1935
- 1935-05-27 ES ES0138397A patent/ES138397A1/en not_active Expired
- 1935-05-29 GB GB15638/35A patent/GB439932A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB439932A (en) | 1935-12-17 |
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