GB746824A - Resins derived from phenol-formaldehyde condensates and epichlorohydrin - Google Patents
Resins derived from phenol-formaldehyde condensates and epichlorohydrinInfo
- Publication number
- GB746824A GB746824A GB1953052A GB1953052A GB746824A GB 746824 A GB746824 A GB 746824A GB 1953052 A GB1953052 A GB 1953052A GB 1953052 A GB1953052 A GB 1953052A GB 746824 A GB746824 A GB 746824A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hydroxyl groups
- phenolic
- average
- reacted
- epichlorhydrin
- 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
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/02—Polycondensates containing more than one epoxy group per molecule
- C08G59/04—Polycondensates containing more than one epoxy group per molecule of polyhydroxy compounds with epihalohydrins or precursors thereof
- C08G59/06—Polycondensates containing more than one epoxy group per molecule of polyhydroxy compounds with epihalohydrins or precursors thereof of polyhydric phenols
- C08G59/08—Polycondensates containing more than one epoxy group per molecule of polyhydroxy compounds with epihalohydrins or precursors thereof of polyhydric phenols from phenol-aldehyde condensates
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Epoxy Compounds (AREA)
- Phenolic Resins Or Amino Resins (AREA)
Abstract
An epoxy resin is made by reacting epichlorhydrin in the presence of an alkali with a partially oxyalkylated derivative of a nonheat-hardenable phenol-formaldehyde condensation product, the oxyalkylated derivative containing an average of at least 1.0 but less than 3.0 phenolic hydroxyl groups and an average of from 3-8 benzene nuclei per molecule. The products are useful as resins and plasticizers and may be esterified with unsaturated drying oil acids to yield esters, preferably of molecular weight 1000-3000, having film-forming properties. Oxyalkylation may be effected by an alkylene oxide (e.g. ethylene or propylene oxide) or a 1-chloro-2-hydroxy alkane. In examples: (1)-(3) a cresol-formaldehyde resin having an average of 4 benzene nuclei and 4 phenolic hydroxyl groups was reacted with propylene oxide to convert 2 of the phenolic groups into alcoholic hydroxyl groups. The resultant phenol alcohol was then heated with epichlorhydrin first alone and then in presence of sodium hydroxide; a resin was extracted from the mixture by butyl acetate, a mixture of butanol and xylene or methyl cyclohexanol. (4) A cresol-formaldehyde resin having an average of 4 benzene nuclei and 4 phenolic nuclei was treated with propylene oxide to convert 3 phenolic groups into alcoholic hydroxyl groups; the phenol alcohol was reacted with epichlorhydrin as in (1). (5) A pxylenol-formaldehyde resin having an average of 4 benzene nuclei and 4 phenolic hydroxyl groups per molecule was reacted with propylene oxide to convert 2 of the phenolic groups into alcoholic hydroxyl groups; the phenol alcohol was reacted with epichlorhydrin as in (1). (6)-(10) The products of examples (1), (2), (4) and (5) were heated at 230-235 DEG C. in an atmosphere of CO2 with groundnut fatty acids, linseed oil fatty acids or whale oil fatty acids. The resulting resinous esters when dissolved in xylol or a mixture of butanol and xylene and, if desired, containing metallic driers, are coating compositions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1953052A GB746824A (en) | 1952-08-01 | 1952-08-01 | Resins derived from phenol-formaldehyde condensates and epichlorohydrin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1953052A GB746824A (en) | 1952-08-01 | 1952-08-01 | Resins derived from phenol-formaldehyde condensates and epichlorohydrin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB746824A true GB746824A (en) | 1956-03-21 |
Family
ID=10130918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1953052A Expired GB746824A (en) | 1952-08-01 | 1952-08-01 | Resins derived from phenol-formaldehyde condensates and epichlorohydrin |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB746824A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3218288A (en) * | 1961-08-17 | 1965-11-16 | Gen Electric | Methyl nadic and hexahydrophthalic anhydride as curing agents for epoxidized novolac resins |
| GB2137629A (en) * | 1983-04-07 | 1984-10-10 | Dow Chemical Co | A process for reducing the hydrolyzable chloride content of an epoxidation process |
-
1952
- 1952-08-01 GB GB1953052A patent/GB746824A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3218288A (en) * | 1961-08-17 | 1965-11-16 | Gen Electric | Methyl nadic and hexahydrophthalic anhydride as curing agents for epoxidized novolac resins |
| GB2137629A (en) * | 1983-04-07 | 1984-10-10 | Dow Chemical Co | A process for reducing the hydrolyzable chloride content of an epoxidation process |
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