FR2273608A1 - Polyurethane binder for sand moulding compsns - polyol component contg. ethylenic or acetylenic gps - Google Patents
Polyurethane binder for sand moulding compsns - polyol component contg. ethylenic or acetylenic gpsInfo
- Publication number
- FR2273608A1 FR2273608A1 FR7517832A FR7517832A FR2273608A1 FR 2273608 A1 FR2273608 A1 FR 2273608A1 FR 7517832 A FR7517832 A FR 7517832A FR 7517832 A FR7517832 A FR 7517832A FR 2273608 A1 FR2273608 A1 FR 2273608A1
- Authority
- FR
- France
- Prior art keywords
- compsn
- gps
- acetylenic
- ethylenic
- polyol component
- 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.)
- Granted
Links
- 238000000465 moulding Methods 0.000 title abstract 3
- 229920005862 polyol Polymers 0.000 title abstract 3
- 239000004576 sand Substances 0.000 title abstract 2
- 239000011230 binding agent Substances 0.000 title 1
- 229920002635 polyurethane Polymers 0.000 title 1
- 239000004814 polyurethane Substances 0.000 title 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 239000011248 coating agent Substances 0.000 abstract 2
- 238000000576 coating method Methods 0.000 abstract 2
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- 150000002739 metals Chemical class 0.000 abstract 2
- 150000003077 polyols Chemical class 0.000 abstract 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 150000002989 phenols Chemical class 0.000 abstract 1
- 229920001228 polyisocyanate Polymers 0.000 abstract 1
- 239000005056 polyisocyanate Substances 0.000 abstract 1
- 230000035939 shock Effects 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 239000010959 steel Substances 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
- C08G18/67—Unsaturated compounds having active hydrogen
- C08G18/675—Low-molecular-weight compounds
-
- 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
- B22C1/2233—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 obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- B22C1/2273—Polyurethanes; Polyisocyanates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns
-
- 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
- C08G18/3203—Polyhydroxy compounds
-
- 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
- C08G18/67—Unsaturated compounds having active hydrogen
- C08G18/675—Low-molecular-weight compounds
- C08G18/679—Acetylenic compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Polyurethanes Or Polyureas (AREA)
- Paints Or Removers (AREA)
Abstract
A process and a compsn. are claimed for coating a material, particularly sand, which can then be moulded and catalytically hardened, the compsn, comprising a polyisocyanate, a polyhydroxy cpd. and opt. a solvent. The improvement consists in the polyhydroxy cpd. comprising 5-100 wt % polyols contg. 2-6, pref. 2-3 terminal or side gps. of formula (I)-(IV): (where R1 and R2 are H or CH3). The use of above polyols results in the coating compsn. being as reactive as those based on phenols without the attendant drawback of pollution caused by presence of phenol. The moulding compsn. has good heat shock resistance and can be readily disintegrated after moulding the metals (e.g. iron, steel or light metals).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7407504A SE398983B (en) | 1974-06-07 | 1974-06-07 | BY ADDITION OF A CATALYST CURABLE COATING AND BINDING COMPOSITION, SPECIFICALLY LEMPADED FOR COATING PARTICULAR MATERIALS AS SAND |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2273608A1 true FR2273608A1 (en) | 1976-01-02 |
| FR2273608B3 FR2273608B3 (en) | 1978-02-03 |
Family
ID=20321356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7517832A Granted FR2273608A1 (en) | 1974-06-07 | 1975-06-06 | Polyurethane binder for sand moulding compsns - polyol component contg. ethylenic or acetylenic gps |
Country Status (8)
| Country | Link |
|---|---|
| BE (1) | BE829711A (en) |
| DE (1) | DE2523615A1 (en) |
| DK (1) | DK255475A (en) |
| FR (1) | FR2273608A1 (en) |
| IT (1) | IT1035852B (en) |
| NL (1) | NL7506736A (en) |
| NO (1) | NO752002L (en) |
| SE (1) | SE398983B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0481319A2 (en) * | 1990-10-19 | 1992-04-22 | Bayer Ag | Two component polyurethane adhesives |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3405939A1 (en) * | 1984-02-18 | 1985-08-22 | Bayer Ag, 5090 Leverkusen | METHOD FOR PRODUCING URETHANE-MODIFIED POLYISOCYANATE PREPARATIONS AND THEIR USE IN THE PRODUCTION OF POLYURETHANE PLASTICS OR POLYISOCYANURATE PLASTICS |
-
1974
- 1974-06-07 SE SE7407504A patent/SE398983B/en unknown
-
1975
- 1975-05-27 IT IT49802/75A patent/IT1035852B/en active
- 1975-05-28 DE DE19752523615 patent/DE2523615A1/en active Pending
- 1975-05-30 BE BE156886A patent/BE829711A/en unknown
- 1975-06-06 DK DK255475A patent/DK255475A/en unknown
- 1975-06-06 NO NO752002A patent/NO752002L/no unknown
- 1975-06-06 NL NL7506736A patent/NL7506736A/en unknown
- 1975-06-06 FR FR7517832A patent/FR2273608A1/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0481319A2 (en) * | 1990-10-19 | 1992-04-22 | Bayer Ag | Two component polyurethane adhesives |
| EP0481319A3 (en) * | 1990-10-19 | 1992-09-30 | Bayer Ag | Two component polyurethane adhesives |
| US5349040A (en) * | 1990-10-19 | 1994-09-20 | Bayer Aktiengesellschaft | Two-component polyurethane adhesives |
Also Published As
| Publication number | Publication date |
|---|---|
| IT1035852B (en) | 1979-10-20 |
| DK255475A (en) | 1975-12-08 |
| SE398983B (en) | 1978-01-30 |
| NL7506736A (en) | 1975-12-09 |
| SE7407504L (en) | 1975-12-08 |
| NO752002L (en) | 1975-12-09 |
| DE2523615A1 (en) | 1975-12-18 |
| BE829711A (en) | 1975-09-15 |
| FR2273608B3 (en) | 1978-02-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |