GB1405115A - Foundry aggregate binders - Google Patents
Foundry aggregate bindersInfo
- Publication number
- GB1405115A GB1405115A GB4740574A GB4740574A GB1405115A GB 1405115 A GB1405115 A GB 1405115A GB 4740574 A GB4740574 A GB 4740574A GB 4740574 A GB4740574 A GB 4740574A GB 1405115 A GB1405115 A GB 1405115A
- Authority
- GB
- United Kingdom
- Prior art keywords
- composition
- foundry aggregate
- bisphenol
- aldehyde
- mixed
- 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
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
- C08G18/40—High-molecular-weight compounds
- C08G18/54—Polycondensates of aldehydes
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Polyurethanes Or Polyureas (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
1405115 Foundry aggregate binders HOOKER CHEMICALS & PLASTICS CORP 28 Sept 1972 47405/74 Divided out of 1405114 Heading C3R and C3N A composition suitable for binding a foundry aggregate, e.g. sand comprises (1) an organic polyisocyanate and (2) a condensation product of an aldehyde and a furan alcohol of the formula wherein v is 0 or an integer from 1 to 4 and R 1 represents a hydrogen or halogen atom or an alkyl group. The composition may also comprise a bisphenol, e.g. bisphenol A. Most preferably the furan alcohol is furfuryl alcohol and the aldehyde is formaldehyde. The composition may comprise an organic solvent. The foundry aggregate is preferably first mixed with the condensation product and optionally the bisphenol, the resulting mixture then mixed with the polyisocyanate and the composition cured in a mould by passing a tertiary amine therethrough.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4740574A GB1405115A (en) | 1972-09-28 | 1972-09-28 | Foundry aggregate binders |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4740574A GB1405115A (en) | 1972-09-28 | 1972-09-28 | Foundry aggregate binders |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1405115A true GB1405115A (en) | 1975-09-03 |
Family
ID=10444845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4740574A Expired GB1405115A (en) | 1972-09-28 | 1972-09-28 | Foundry aggregate binders |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1405115A (en) |
-
1972
- 1972-09-28 GB GB4740574A patent/GB1405115A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |