NO125634B - - Google Patents
Download PDFInfo
- Publication number
- NO125634B NO125634B NO104769A NO104769A NO125634B NO 125634 B NO125634 B NO 125634B NO 104769 A NO104769 A NO 104769A NO 104769 A NO104769 A NO 104769A NO 125634 B NO125634 B NO 125634B
- Authority
- NO
- Norway
- Prior art keywords
- urea
- formaldehyde
- parts
- aqueous solution
- net
- Prior art date
Links
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 70
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 47
- 239000004202 carbamide Substances 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 16
- 238000006068 polycondensation reaction Methods 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 9
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical group OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 8
- 239000000084 colloidal system Substances 0.000 claims description 8
- LNOPIUAQISRISI-UHFFFAOYSA-N n'-hydroxy-2-propan-2-ylsulfonylethanimidamide Chemical compound CC(C)S(=O)(=O)CC(N)=NO LNOPIUAQISRISI-UHFFFAOYSA-N 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 8
- 229920000877 Melamine resin Polymers 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 6
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical group NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 6
- ODGAOXROABLFNM-UHFFFAOYSA-N polynoxylin Chemical compound O=C.NC(N)=O ODGAOXROABLFNM-UHFFFAOYSA-N 0.000 claims description 6
- 229920001807 Urea-formaldehyde Polymers 0.000 claims description 5
- WWILHZQYNPQALT-UHFFFAOYSA-N 2-methyl-2-morpholin-4-ylpropanal Chemical compound O=CC(C)(C)N1CCOCC1 WWILHZQYNPQALT-UHFFFAOYSA-N 0.000 claims description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 4
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 4
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims description 4
- 239000012798 spherical particle Substances 0.000 claims description 4
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 3
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims description 3
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- 125000003710 aryl alkyl group Chemical group 0.000 claims description 2
- 125000003118 aryl group Chemical group 0.000 claims description 2
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 2
- 125000002768 hydroxyalkyl group Chemical group 0.000 claims description 2
- 239000000047 product Substances 0.000 description 13
- 239000000243 solution Substances 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 239000002245 particle Substances 0.000 description 8
- 239000007859 condensation product Substances 0.000 description 6
- 238000001035 drying Methods 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 229920001971 elastomer Polymers 0.000 description 4
- 239000008098 formaldehyde solution Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 229920003052 natural elastomer Polymers 0.000 description 3
- 229920001194 natural rubber Polymers 0.000 description 3
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 2
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- BIGPRXCJEDHCLP-UHFFFAOYSA-N ammonium bisulfate Chemical class [NH4+].OS([O-])(=O)=O BIGPRXCJEDHCLP-UHFFFAOYSA-N 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- 239000005061 synthetic rubber Substances 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- GZVHEAJQGPRDLQ-UHFFFAOYSA-N 6-phenyl-1,3,5-triazine-2,4-diamine Chemical compound NC1=NC(N)=NC(C=2C=CC=CC=2)=N1 GZVHEAJQGPRDLQ-UHFFFAOYSA-N 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- SUHOOTKUPISOBE-UHFFFAOYSA-N O-phosphoethanolamine Chemical compound NCCOP(O)(O)=O SUHOOTKUPISOBE-UHFFFAOYSA-N 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 229920003180 amino resin Polymers 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 238000010533 azeotropic distillation Methods 0.000 description 1
- HQABUPZFAYXKJW-UHFFFAOYSA-N butan-1-amine Chemical compound CCCCN HQABUPZFAYXKJW-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 150000002332 glycine derivatives Chemical class 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- NTOLGSSKLPLTDW-UHFFFAOYSA-N hydrogen sulfate;phenylazanium Chemical compound OS(O)(=O)=O.NC1=CC=CC=C1 NTOLGSSKLPLTDW-UHFFFAOYSA-N 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000012763 reinforcing filler Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- IIACRCGMVDHOTQ-UHFFFAOYSA-N sulfamic acid Chemical compound NS(O)(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-N 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 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
- C08G14/00—Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00
- C08G14/02—Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00 of aldehydes
- C08G14/04—Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00 of aldehydes with phenols
- C08G14/06—Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00 of aldehydes with phenols and monomers containing hydrogen attached to nitrogen
- C08G14/08—Ureas; Thioureas
-
- 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
- C08G12/02—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes
- C08G12/04—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds
- C08G12/10—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds with acyclic compounds having the moiety X=C(—N<)2 in which X is O, S or —N
- C08G12/12—Ureas; Thioureas
-
- 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
- C08G12/02—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes
- C08G12/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
- C08G12/34—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds and acyclic or carbocyclic compounds
- C08G12/36—Ureas; Thioureas
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L21/00—Compositions of unspecified rubbers
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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH416968A CH522007A (de) | 1968-03-21 | 1968-03-21 | Verfahren zur Herstellung von hochdispersen, aus Harnstoff-Formaldehyd-Polykondensationsprodukten bestehenden Feststoffen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO125634B true NO125634B (fr) | 1972-10-09 |
Family
ID=4271086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO104769A NO125634B (fr) | 1968-03-21 | 1969-03-13 |
Country Status (9)
| Country | Link |
|---|---|
| AT (1) | AT292305B (fr) |
| BE (1) | BE730186A (fr) |
| CH (1) | CH522007A (fr) |
| DE (1) | DE1907914C3 (fr) |
| FR (1) | FR2004360A1 (fr) |
| GB (1) | GB1239143A (fr) |
| NL (1) | NL149823B (fr) |
| NO (1) | NO125634B (fr) |
| SE (1) | SE360088B (fr) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3931063A (en) * | 1973-07-30 | 1976-01-06 | Ciba-Geigy Ag | Process for the manufacture of porous solids consisting of crosslinked urea-formaldehyde polycondensation products |
| CH599260A5 (fr) * | 1974-06-07 | 1978-05-31 | Ciba Geigy Ag | |
| US4454254A (en) * | 1982-12-01 | 1984-06-12 | Basf Wyandotte Corporation | Aminoplast resins, dispersions, and low flammability cellular and non-cellular polyurethane products prepared therefrom |
| GB2172894B (en) * | 1985-03-29 | 1989-05-10 | Muirhead Data Communications L | Melamine/formaldehyde and urea/formaldehyde resinous materials |
| US4960856A (en) * | 1988-11-28 | 1990-10-02 | Georgia-Pacific Corporation | Urea-formaldehyde compositions and method of manufacture |
| US5110898A (en) * | 1988-11-28 | 1992-05-05 | Georgia-Pacific Corporation | Method for manufacturing amino-aldehyde compositions |
| DE19518942C2 (de) * | 1995-05-23 | 1998-12-10 | Fraunhofer Ges Forschung | Verfahren zur Herstellung von metallisierten Polymerpartikeln und nach dem Verfahren hergestelltes Polymermaterial sowie deren Verwendung |
| DE19713189A1 (de) | 1997-03-27 | 1998-10-01 | Kimberly Clark Gmbh | Absorbierender Artikel |
| DE102007038824A1 (de) | 2007-08-16 | 2009-02-19 | Basf Coatings Ag | Einsatz von Bismutsubnitrat in Elektrotauchlacken |
| DE102008016220A1 (de) | 2008-03-27 | 2009-10-01 | Basf Coatings Ag | Elektrotauchlacke enthaltend Polymethylenharnstoff |
-
1968
- 1968-03-21 CH CH416968A patent/CH522007A/de not_active IP Right Cessation
-
1969
- 1969-02-17 DE DE19691907914 patent/DE1907914C3/de not_active Expired
- 1969-03-04 FR FR6905861A patent/FR2004360A1/fr not_active Withdrawn
- 1969-03-13 NO NO104769A patent/NO125634B/no unknown
- 1969-03-18 GB GB1429469A patent/GB1239143A/en not_active Expired
- 1969-03-20 SE SE389169A patent/SE360088B/xx unknown
- 1969-03-20 BE BE730186A patent/BE730186A/xx unknown
- 1969-03-20 NL NL6904317A patent/NL149823B/xx unknown
- 1969-03-20 AT AT277369A patent/AT292305B/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| NL6904317A (fr) | 1969-09-23 |
| DE1907914C3 (de) | 1974-10-10 |
| DE1907914A1 (de) | 1969-10-16 |
| CH522007A (de) | 1972-04-30 |
| GB1239143A (fr) | 1971-07-14 |
| DE1907914B2 (de) | 1974-02-14 |
| FR2004360A1 (fr) | 1969-11-21 |
| AT292305B (de) | 1971-08-25 |
| SE360088B (fr) | 1973-09-17 |
| NL149823B (nl) | 1976-06-15 |
| BE730186A (fr) | 1969-09-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3931063A (en) | Process for the manufacture of porous solids consisting of crosslinked urea-formaldehyde polycondensation products | |
| NO125634B (fr) | ||
| US4814422A (en) | Pulverulent aminoplast adhesive resin for wood-base materials having a low formaldehyde emission, its preparation, and a formulated pulverulent aminoplast adhesive resin | |
| KR100430239B1 (ko) | 경화된수지입자의제조방법 | |
| US3981845A (en) | High surface area polycondensation polymer particulates based on urea and formaldehyde | |
| US3093600A (en) | Aminotriazine-aldehyde foam modified with a primary triol | |
| US4788236A (en) | Process for producing particulate novolac resins and aqueous dispersions | |
| US4018741A (en) | Process for the manufacture of highly disperse solids consisting of crosslinked urea-formaldehyde polycondensation products | |
| US4101521A (en) | Process for the manufacture of highly disperse solids consisting of crosslinked urea-formaldehyde polycondensation products | |
| AU2006245964A1 (en) | Melamine-formaldehyde resin solution and process for producing the same | |
| US4960856A (en) | Urea-formaldehyde compositions and method of manufacture | |
| US3721651A (en) | Cationic resin prepared by two stage condensation of melamine,formaldehyde and aliphatic hydroxylated monoamine | |
| US2662071A (en) | Process of producing dicyandiamideurea-formaldehyde impregnating agents | |
| CA1216697A (fr) | Procede pour obtenir des resines de novolac particulaires et les dispersions aqueuses | |
| US4824913A (en) | Process for preparing water-soluble polymer | |
| NO133591B (fr) | ||
| SU826961A3 (ru) | СПОСОБ ПОЛУЧЕНИЯ ВЫСОКОДИСПЕРСНЫХ, ТЗЕРДЫХ МОЧЕВИНО-ФОРМАЛЬДЕГЙДНЫХ КОНДЕНСАЦИОННЫХ ПОЛИМЕРОВ1Изобретение относитс к получению аминопластов, наход щих применение в различных област х народного хоз йства.Известен способ получени высокодисперсных мочевино-формальдегид- ных полимеров в виде дисперсных по- рсмлков, обладающих удельной поверхностью свыше 10 м^/г.В известном способе получени .мочевино-формальдегидных поликонденсационных продуктов исход т либо из мономеров мочевины (м) и формальдегида (Ф), либо из форконденсата (МФ). Поликонденсацию провод т в присутствии кислых катализаторов в водном растворе. Хорошие полимеры получают, например, если в качестве катализатора используют сульфаминовую кислоту или водорастворимый кислый сульфат аммони [l] .Однако по способу получени МФ- поликонденссщионных продуктов согласно состо нию техники получают высо- кодиспсрсные вещества, которые в определенных област х применени не обладают желательными свойствами. Так, многие эти продукты не обладают в достаточной степени определенным сродством поверхностей, на ко-10торых получают особенно хорс иее совмещение в смеси с каучуком или совмещение с определенными красител ми. Некоторые из МФ-поликонденсаци- онных продуктов, полученные по этому известному методу, можно примен ть как активные наполнители дл резин, однако возможность впитывани этих веществ дл масел или присадок ограничена. Кроме того, приготовление таблеток или гранул из МФ-поликонденсационных продуктов достаточно т желый процесс, так как материал крс иитс . Известные спо- 15 собы получени также МФ-полимеров нуждаюгс , кроме того,- в улучшении, поскольку лсислый катализатор нужно удал ть длительным промыванием из конечного продукта.Цель изобретени - повышение качества целевого продукта.Дл достижени поставленной цели предлагаетс способ получени модифицированных сульфогруппами высокодисперсных, твердых мочевино-формальдегидных конденсационных полиме/- ров, состо щих и'з компактных, сфе'^к- ческих, спекшихс первичных частц'ц с диаметром менее 1 мкм, в соотнрт- ствиИ с которым форконденсат (у) из'202530 | |
| US4684690A (en) | Aminoplast adhesive resin powder for wood-based materials or as a paper adhesive, which eliminates little formaldehyde, its preparation, and a formulated aminoplast adhesive resin powder | |
| GB2178749A (en) | Manufacture of a solid urea-formaldehyde resin | |
| US4234698A (en) | Method of making cured aminoplast foam | |
| US6245853B1 (en) | Method of preparing co-polymer particles | |
| US4064088A (en) | Process for the manufacture of urea-formaldehyde condensation polymers containing sulpho groups | |
| CA1102495A (fr) | Methode de production de plastique mousse a resistance amelioree a la combustion | |
| US4691001A (en) | Process for making solid urea-formaldehyde resins | |
| US5110898A (en) | Method for manufacturing amino-aldehyde compositions |