ES476072A1 - Metodo perfeccionado de fabricacion de moldes de fundicion. - Google Patents
Metodo perfeccionado de fabricacion de moldes de fundicion.Info
- Publication number
- ES476072A1 ES476072A1 ES476072A ES476072A ES476072A1 ES 476072 A1 ES476072 A1 ES 476072A1 ES 476072 A ES476072 A ES 476072A ES 476072 A ES476072 A ES 476072A ES 476072 A1 ES476072 A1 ES 476072A1
- Authority
- ES
- Spain
- Prior art keywords
- accelerator
- materials
- roommtemperatureecurable
- polyurethaneebased
- moldinggcompound
- 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
- 239000000463 material Substances 0.000 abstract 4
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 abstract 3
- 230000002939 deleterious effect Effects 0.000 abstract 2
- 238000000465 moulding Methods 0.000 abstract 2
- 229920005862 polyol Polymers 0.000 abstract 2
- 150000003077 polyols Chemical class 0.000 abstract 2
- 239000004814 polyurethane Substances 0.000 abstract 2
- 229920002635 polyurethane Polymers 0.000 abstract 2
- 239000011230 binding agent Substances 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000005056 polyisocyanate Substances 0.000 abstract 1
- 229920001228 polyisocyanate Polymers 0.000 abstract 1
- 231100000331 toxic Toxicity 0.000 abstract 1
- 230000002588 toxic effect Effects 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3271—Hydroxyamines
- C08G18/3278—Hydroxyamines containing at least three hydroxy groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
- B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
- B22C1/20—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents
- B22C1/22—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents of resins or rosins
-
- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3271—Hydroxyamines
-
- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/50—Polyethers having heteroatoms other than oxygen
- C08G18/5021—Polyethers having heteroatoms other than oxygen having nitrogen
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Mold Materials And Core Materials (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
Método perfeccionado de fabricación de moldes de fundición, caracterizado porque el aglomerante del material de moldeo es susceptible de endurecerse en frío y es a base de poliuretano, que se compone de un poliisocianato, que comporta al menos dos grupos NCO en la molécula, y de un poliol que comporta al menos dos grupos OH en la molécula, siendo el poliol un aminopoliol que comporta al menos, en la molécula, un grupo amino terciario que actúa como acelerador.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19772759258 DE2759258A1 (de) | 1977-12-30 | 1977-12-30 | Kaltaushaertendes bindemittel fuer formstoff-mischungen zur herstellung von giessformen und kernen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES476072A1 true ES476072A1 (es) | 1979-05-16 |
Family
ID=6027935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES476072A Expired ES476072A1 (es) | 1977-12-30 | 1978-12-16 | Metodo perfeccionado de fabricacion de moldes de fundicion. |
Country Status (13)
| Country | Link |
|---|---|
| JP (1) | JPS5496426A (es) |
| AR (1) | AR220366A1 (es) |
| AU (1) | AU4293878A (es) |
| BE (1) | BE865741A (es) |
| BR (1) | BR7808389A (es) |
| CA (1) | CA1134989A (es) |
| DE (1) | DE2759258A1 (es) |
| ES (1) | ES476072A1 (es) |
| FR (1) | FR2413453A1 (es) |
| GR (1) | GR66462B (es) |
| IT (1) | IT1102406B (es) |
| NL (1) | NL7812549A (es) |
| ZA (1) | ZA783393B (es) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4370463A (en) * | 1978-06-14 | 1983-01-25 | Ashland Oil, Inc. | Process for no-bake foundry application utilizing polyurethanes based on amine polyols |
| DE2855391A1 (de) * | 1978-12-21 | 1980-06-26 | Woellner Werke | Kalthaertendes bindemittel fuer teilchenfoermige feststoffe, insbesondere giessereisand |
| DE2925733A1 (de) * | 1979-06-23 | 1981-01-15 | Huettenes Albertus | Bindemittel auf polyurethanbasis, sowie dessen herstellung |
| JPS5736115A (en) * | 1980-08-12 | 1982-02-26 | Mitsui Tekisako Chem Kk | Curing agent composition for polyurethane |
| US4448907A (en) * | 1981-03-30 | 1984-05-15 | Ashland Oil, Inc. | Process for casting lightweight metals |
| DE3329452A1 (de) * | 1983-08-16 | 1985-03-07 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung von gegebenenfalls zellfoermigen polyurethanen |
-
1977
- 1977-12-30 DE DE19772759258 patent/DE2759258A1/de not_active Withdrawn
-
1978
- 1978-04-06 BE BE186603A patent/BE865741A/xx unknown
- 1978-06-13 ZA ZA00783393A patent/ZA783393B/xx unknown
- 1978-12-16 ES ES476072A patent/ES476072A1/es not_active Expired
- 1978-12-20 IT IT31040/78A patent/IT1102406B/it active
- 1978-12-21 FR FR7836602A patent/FR2413453A1/fr active Granted
- 1978-12-21 BR BR7808389A patent/BR7808389A/pt unknown
- 1978-12-22 GR GR57979A patent/GR66462B/el unknown
- 1978-12-27 JP JP16023878A patent/JPS5496426A/ja active Pending
- 1978-12-27 NL NL7812549A patent/NL7812549A/xx not_active Application Discontinuation
- 1978-12-28 CA CA000318783A patent/CA1134989A/en not_active Expired
- 1978-12-28 AU AU42938/78A patent/AU4293878A/en active Pending
- 1978-12-28 AR AR275018A patent/AR220366A1/es active
Also Published As
| Publication number | Publication date |
|---|---|
| IT1102406B (it) | 1985-10-07 |
| AU4293878A (en) | 1979-07-05 |
| GR66462B (es) | 1981-03-23 |
| FR2413453A1 (fr) | 1979-07-27 |
| IT7831040A0 (it) | 1978-12-20 |
| AR220366A1 (es) | 1980-10-31 |
| BE865741A (fr) | 1978-07-31 |
| CA1134989A (en) | 1982-11-02 |
| JPS5496426A (en) | 1979-07-30 |
| DE2759258A1 (de) | 1979-07-12 |
| ZA783393B (en) | 1979-06-27 |
| NL7812549A (nl) | 1979-07-03 |
| FR2413453B1 (es) | 1983-03-18 |
| BR7808389A (pt) | 1979-08-07 |
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| ES230414A1 (es) | UN PROCEDIMIENTO PARA CONSTRUIR TRAVIESAS Y OTROS CUERPOS DE HORMIGoN ARMADO | |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FD1A | Patent lapsed |
Effective date: 19971001 |