ES383547A2 - Procedure for the preparation of solid materials based on reticulated products of urea polycondensation and formaldehyde. (Machine-translation by Google Translate, not legally binding) - Google Patents
Procedure for the preparation of solid materials based on reticulated products of urea polycondensation and formaldehyde. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES383547A2 ES383547A2 ES383547A ES383547A ES383547A2 ES 383547 A2 ES383547 A2 ES 383547A2 ES 383547 A ES383547 A ES 383547A ES 383547 A ES383547 A ES 383547A ES 383547 A2 ES383547 A2 ES 383547A2
- Authority
- ES
- Spain
- Prior art keywords
- formaldehyde
- urea
- preparation
- solid materials
- translation
- 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 12
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title abstract 5
- 239000004202 carbamide Substances 0.000 title abstract 5
- 238000006068 polycondensation reaction Methods 0.000 title abstract 3
- 239000011343 solid material Substances 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 abstract 1
- 125000000217 alkyl group Chemical group 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 125000003710 aryl alkyl group Chemical group 0.000 abstract 1
- 150000005840 aryl radicals Chemical class 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000000084 colloidal system Substances 0.000 abstract 1
- 125000000753 cycloalkyl group Chemical group 0.000 abstract 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 abstract 1
- 125000002768 hydroxyalkyl group Chemical group 0.000 abstract 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 abstract 1
- 239000011164 primary particle Substances 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
- 150000003254 radicals Chemical class 0.000 abstract 1
- IIACRCGMVDHOTQ-UHFFFAOYSA-N sulfamic acid Chemical compound NS(O)(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/12—Powdering or granulating
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2361/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
- C08J2361/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08J2361/22—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds
- C08J2361/24—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds with urea or thiourea
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Phenolic Resins Or Amino Resins (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Improvements in the object of the main patent no. 365,005, for "Procedure for the preparation of solid materials based on crosslinked polycondensation products of urea and formaldehyde" especially for the preparation of widely dispersed solid materials, consisting of primary particles of medium diameter not exceeding 1 micron, based on crosslinked polycondensation products of urea and formaldehyde, characterized by converting the aqueous solution of a urea and formaldehyde precondensate into a crosslinked gel, in the absence of protective colloid and by the addition of sulfaminic acid or a water soluble ammonium hydrosulfate of the formula R-Nh3 ⊕ SO4H ⊖ in which R stands for a hydrogen atom or an organic radical that does not impair the solubility in water (such as, in particular, an alkyl, cycloalkyl, hydroxyalkyl, aralkyl or aryl radical), using a formaldehyde: urea molar ratio which at the latest in the moment of gel formation does not exceed 1.2, and because the gel obtained is crumbled, dried and deagglomerated. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1382969A CH533143A (en) | 1968-03-21 | 1969-09-12 | Highly disperse crosslinked ureaformaldeh |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES383547A2 true ES383547A2 (en) | 1973-01-01 |
Family
ID=4395683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES383547A Expired ES383547A2 (en) | 1969-09-12 | 1970-09-11 | Procedure for the preparation of solid materials based on reticulated products of urea polycondensation and formaldehyde. (Machine-translation by Google Translate, not legally binding) |
Country Status (11)
| Country | Link |
|---|---|
| JP (1) | JPS492030B1 (en) |
| BE (1) | BE756029R (en) |
| DE (1) | DE2044003C3 (en) |
| ES (1) | ES383547A2 (en) |
| FR (1) | FR2059767B2 (en) |
| GB (1) | GB1296246A (en) |
| IT (1) | IT951912B (en) |
| NL (1) | NL149193B (en) |
| NO (1) | NO131936C (en) |
| SE (1) | SE366050B (en) |
| ZA (1) | ZA705676B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2492759A1 (en) * | 1980-10-27 | 1982-04-30 | Citroen Sa | IMPROVEMENTS RELATING TO ROTARY ASSISTANCE MECHANISMS, IN PARTICULAR FOR VEHICLE STEERING |
| GB2172894B (en) * | 1985-03-29 | 1989-05-10 | Muirhead Data Communications L | Melamine/formaldehyde and urea/formaldehyde resinous materials |
| EP1128405A1 (en) * | 2000-02-21 | 2001-08-29 | Cherry GmbH | Microswitch module |
-
0
- BE BE756029D patent/BE756029R/en active
-
1970
- 1970-08-12 FR FR707029702A patent/FR2059767B2/fr not_active Expired
- 1970-08-18 ZA ZA705676A patent/ZA705676B/en unknown
- 1970-08-20 GB GB1296246D patent/GB1296246A/en not_active Expired
- 1970-08-25 NO NO3229/70A patent/NO131936C/no unknown
- 1970-09-04 DE DE2044003A patent/DE2044003C3/en not_active Expired
- 1970-09-10 IT IT53323/70A patent/IT951912B/en active
- 1970-09-11 SE SE12380/70A patent/SE366050B/xx unknown
- 1970-09-11 NL NL707013493A patent/NL149193B/en not_active IP Right Cessation
- 1970-09-11 ES ES383547A patent/ES383547A2/en not_active Expired
- 1970-09-12 JP JP45079695A patent/JPS492030B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| NO131936C (en) | 1975-08-27 |
| ZA705676B (en) | 1971-06-30 |
| DE2044003C3 (en) | 1975-04-10 |
| DE2044003A1 (en) | 1971-03-25 |
| NL149193B (en) | 1976-04-15 |
| SE366050B (en) | 1974-04-08 |
| BE756029R (en) | 1971-03-11 |
| JPS492030B1 (en) | 1974-01-18 |
| FR2059767A2 (en) | 1971-06-04 |
| DE2044003B2 (en) | 1974-07-25 |
| IT951912B (en) | 1973-07-10 |
| GB1296246A (en) | 1972-11-15 |
| NO131936B (en) | 1975-05-20 |
| FR2059767B2 (en) | 1973-01-12 |
| NL7013493A (en) | 1971-03-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES464767A1 (en) | Highly absorbent graft copolymers of polyhydroxy polymers, acrylonitrile, and acrylic comonomers | |
| ES374006A1 (en) | Procedure for obtaining coating compositions. (Machine-translation by Google Translate, not legally binding) | |
| NO156712B (en) | APPLICATION OF POLYCONDENSATION PRODUCTS OF ACROLEIN AND FORMALDEHYDE TO COMBAT ALGES AND MICROORGANISMS IN Aqueous Systems. | |
| ATE230002T1 (en) | AGGLOMERATES FOR PRODUCING AN AQUEOUS BINDER SYSTEM | |
| ES383547A2 (en) | Procedure for the preparation of solid materials based on reticulated products of urea polycondensation and formaldehyde. (Machine-translation by Google Translate, not legally binding) | |
| GB1109771A (en) | Insoluble films based on polyvinyl alcohol and process for the preparation thereof | |
| GB1222447A (en) | Improved polyamine wet strength paper additive | |
| ES365005A1 (en) | Procedure for the preparation of solid materials based on reticulated products of urea polycondensation and formaldehyde (Machine-translation by Google Translate, not legally binding) | |
| ES8106321A1 (en) | Storage-stable polyacrylate modified melamine resin solution, process for its preparation and its use. | |
| GB1156516A (en) | Water-Soluble Derivatives of Polyalkylenimines and their production | |
| EP0103970A3 (en) | Amine salts and products containing them | |
| ES400930A1 (en) | Dentrifrices | |
| GB1217106A (en) | Anti-caking urea compositions | |
| GB1374750A (en) | Grouting composition | |
| ES430706A1 (en) | Process of cartridging water bearing explosive compositions | |
| ES455850A1 (en) | Glyoxal poly(beta-alanine) strengthening resins for use in paper | |
| GB1183513A (en) | Compositions for Treating Nails | |
| ES327366A3 (en) | Procedure for the preparation of polymers with uniform middle molecular weight. (Machine-translation by Google Translate, not legally binding) | |
| JPS565138A (en) | Water absorbing agent | |
| GB403664A (en) | An improved process for making light-sensitive layers | |
| JPS5266538A (en) | Powder coating compound in slurry form | |
| JPS5513739A (en) | Preparation of aqueous emulsion of phenolic resin | |
| ES339608A1 (en) | Process for making water-soluble,thermosetting resins of aziridine derivatives | |
| ES424408A1 (en) | Gelled water-bearing explosive compositions | |
| GB1029320A (en) | A process for the preparation of low molecular weight polymers of alpha,beta-ethylenically unsaturated aldehydes |