GB914463A - Epoxide resins - Google Patents
Epoxide resinsInfo
- Publication number
- GB914463A GB914463A GB2162959A GB2162959A GB914463A GB 914463 A GB914463 A GB 914463A GB 2162959 A GB2162959 A GB 2162959A GB 2162959 A GB2162959 A GB 2162959A GB 914463 A GB914463 A GB 914463A
- Authority
- GB
- United Kingdom
- Prior art keywords
- epoxy
- tetrahydrophthalic anhydride
- butadiene
- heating
- polyepoxides
- 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
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/42—Polycarboxylic acids; Anhydrides, halides or low molecular weight esters thereof
- C08G59/4215—Polycarboxylic acids; Anhydrides, halides or low molecular weight esters thereof cycloaliphatic
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Epoxy Resins (AREA)
Abstract
An epoxy resin composition comprises a polyepoxide containing on the average more than one epoxide group per molecule, and a mixture of the isomers of tetrahydrophthalic anhydride which is liquid at ambient temperature. The isomeric mixture is prepared by heating tetrahydrophthalic anhydride derived from butadiene and maleic anhydride in the presence of an acidic catalyst (see Group IV(b)). Polyepoxides specified are:-the diepoxides of vinylcyclohexenes, butadiene, dicyclopentadiene, and dicyclopentenyl ether, the diglycidyl ethers of bisphenol A and of ethylene glycol, 6-methyl-3,4-epoxy-cyclohexylmethyl-6-methyl-3,4-epoxy cyclohexane-1-carboxylate, and 3(3,4-epoxy-cyclohexyl)-8,9-epoxy-2,4-dioxa-spiro(5:5)-undecane: the polyepoxides may be mixed. Catalysts specified are SnCl4 and benzyldimethylamine; and ethylene glycol may also be added. Specification 795,378 is referred to.ALSO:Tetrahydrophthalic anhydride (m.pt. 100 DEG C.), made in known manner from butadiene and maleic anhydride, is isomerised by heating in the presence of an acidic catalyst to form mixtures (of the four possible isomers) having melting point of e.g. 17 DEG -46 DEG C. In Example (1) 100 g. of tetrahydrophthalic anhydride were heated at 250 DEG C. in the presence of 1 g. of P2O5 are then distilled at 4 mm. Hg.; the heating period varied from 0.5-1.25 hours. Specification 795,378 is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2162959A GB914463A (en) | 1959-06-24 | 1959-06-24 | Epoxide resins |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2162959A GB914463A (en) | 1959-06-24 | 1959-06-24 | Epoxide resins |
Publications (1)
Publication Number | Publication Date |
---|---|
GB914463A true GB914463A (en) | 1963-01-02 |
Family
ID=10166143
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2162959A Expired GB914463A (en) | 1959-06-24 | 1959-06-24 | Epoxide resins |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB914463A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3470132A (en) * | 1965-12-10 | 1969-09-30 | Ciba Ltd | Thermocurable composition of epoxy resins and mixed polycarboxylic acid anhydrides |
-
1959
- 1959-06-24 GB GB2162959A patent/GB914463A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3470132A (en) * | 1965-12-10 | 1969-09-30 | Ciba Ltd | Thermocurable composition of epoxy resins and mixed polycarboxylic acid anhydrides |
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