BE407197A - - Google Patents
Info
- Publication number
- BE407197A BE407197A BE407197DA BE407197A BE 407197 A BE407197 A BE 407197A BE 407197D A BE407197D A BE 407197DA BE 407197 A BE407197 A BE 407197A
- Authority
- BE
- Belgium
- Prior art keywords
- mass
- formaldehyde
- aforesaid
- mixture
- transparent
- Prior art date
Links
- WSFSSNUMVMOOMR-UHFFFAOYSA-N formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 40
- 238000001035 drying Methods 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 15
- XSQUKJJJFZCRTK-UHFFFAOYSA-N urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 14
- 150000001875 compounds Chemical class 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- ODGAOXROABLFNM-UHFFFAOYSA-N Polynoxylin Chemical compound O=C.NC(N)=O ODGAOXROABLFNM-UHFFFAOYSA-N 0.000 claims description 7
- 229920001807 Urea-formaldehyde Polymers 0.000 claims description 7
- 239000004202 carbamide Substances 0.000 claims description 7
- 239000011521 glass Substances 0.000 claims description 7
- 238000006116 polymerization reaction Methods 0.000 claims description 6
- 238000009835 boiling Methods 0.000 claims description 5
- 230000002093 peripheral Effects 0.000 claims description 5
- 238000002425 crystallisation Methods 0.000 claims description 4
- 230000005712 crystallization Effects 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000005755 formation reaction Methods 0.000 claims description 3
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 claims description 3
- 239000011872 intimate mixture Substances 0.000 claims description 3
- 230000001264 neutralization Effects 0.000 claims description 3
- 239000002344 surface layer Substances 0.000 claims description 3
- 239000012255 powdered metal Substances 0.000 claims description 2
- 238000001704 evaporation Methods 0.000 claims 1
- 238000002156 mixing Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 239000012212 insulator Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- VKYKSIONXSXAKP-UHFFFAOYSA-N Hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 description 2
- 229960004011 Methenamine Drugs 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000012024 dehydrating agents Substances 0.000 description 2
- 239000004312 hexamethylene tetramine Substances 0.000 description 2
- 235000010299 hexamethylene tetramine Nutrition 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 2
- 210000004905 Finger nails Anatomy 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000002349 favourable Effects 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Ophthalmology & Optometry (AREA)
- Mechanical Engineering (AREA)
- Drying Of Solid Materials (AREA)
- Phenolic Resins Or Amino Resins (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE407197A true BE407197A (de) |
Family
ID=72039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE407197D BE407197A (de) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE407197A (de) |
-
0
- BE BE407197D patent/BE407197A/fr unknown
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