HuagongsheHuagongshe Chemistry Print Report · For research reference only
Adipic Acid → 1,4-Butanediol
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Adipic Acid | HCID 196 | — |
| Reactant | HCID 18380939 | HCID 18380939 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | 1,4-Butanediol | HCID 8064 | — |
| Product | 1,6-Hexanediol | HCID 12374 | — |
Reaction Steps
Top coat solution D1 is a 25% solution of a polyester urethane in dimethylformamide (DMF)/methyl ethyl ketone (MEK) (1:1) with a viscosity of 10,000 cP/25° C. The polyester urethane elastomer is obtained from 2000 g (1.0 mol) of a copolyester of ethylene glycol/butane-1,4-diol and adipic acid (molecular weight 2000), 108.0 g (1.20 mol) of butane-1,4-diol, 141.6 g (1.20 mol) of hexane-1,6-diol and the equivalent quantity of 4,4'-diphenylmethane diisocyanate (850 g) by a one-shot process. The molar ratio of chain-lengthening agents is therefore 1:1.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04116741 |
| Source dataset | uspto-grants-1978_09 |
| ORD ID | ord-d02d20580b83495887bb5bc61202456a |
| Source note | uspto-grants-1978_09 |