HuagongsheHuagongshe Chemistry Print Report · For research reference only
826-62-0 → Phthalic Anhydride
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 826-62-0 | HCID 13223 | — |
| Reactant | Methyl nadic anhydride | HCID 32802 | — |
| Reactant | Methylhexahydrophthalic anhydride | HCID 3016472 | — |
| Product | Phthalic Anhydride | HCID 6811 | — |
| Product | 4,4'-Carbonyldiphthalic anhydride | HCID 75498 | — |
| Product | Hexahydrophthalic anhydride | HCID 85689 | — |
| Product | 3a,4,5,7a-Tetrahydro-2-benzofuran-1,3-dione | HCID 12726601 | — |
Reaction Steps
The liquid, organic acid anhydrides which are used as epoxy resin curing agents in carrying out the invention, include 1-methyl hexahydrophthalic anyhydride, 1-methyltetrahydrophthalic anhydride, NADIC anhydride, NADIC methyl anhydride, and the like liquid anhydrides; and blends of hexahydrophthalic anhydride, tetrahydrophthalic anhydride, phthalic anhydride, pyromellitic dianhydride, polyazelaic polyanhydride, the reaction product of trimellitic anhydride and a glycol, and benzophenone tetracarboxylic acid dianhydride solids with any of the above liquid anhydrides, to provide a liquid admixture of anhydrides. The anhydrides may be used singly or in admixture but the resultant material must be a liquid.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04076626 |
| Source dataset | uspto-grants-1978_02 |
| ORD ID | ord-6c5d5ea440b04d66bb8e73d6014ac60b |
| Source note | uspto-grants-1978_02 |