Water → Carbonic acid;4-[2-(4-hydroxyphenyl)propan-2-yl]phenol

HRID 648363

Reaktionsgleichung

Reaktionsgleichung von HRID 648363
[OH2:1].C(Cl)Cl.[OH:5][C:6]1[CH:11]=[CH:10][C:9]([C:12]([C:15]2[CH:20]=[CH:19][C:18]([OH:21])=[CH:17][CH:16]=2)([CH3:14])[CH3:13])=[CH:8][CH:7]=1.[O:22]=[C:23]([O-:34])[C@@H]([C@H]([C@@H]([C@@H](CO)O)O)O)O.[Na+]>C(N(CC)CC)C>[CH3:14][C:12]([C:9]1[CH:10]=[CH:11][C:6]([OH:5])=[CH:7][CH:8]=1)([C:15]1[CH:16]=[CH:17][C:18]([OH:21])=[CH:19][CH:20]=1)[CH3:13].[C:23]([OH:34])([OH:22])=[O:1]

Komponenten

6

Edukt 4

HCID 962WaterHCID 6344DichloromethaneHCID 6623Bisphenol AHCID 23672301Sodium Gluconate

Produkt 1

HCID 159987Carbonic acid;4-[2-(4-hydroxyphenyl)propan-2-yl]phenol

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8471TriethylamineLösungsmittel

Versuchsvorschrift

To a reactor fitted with a mechanical agitator were charged 5.5 liters of deionized water, 10 liters of methylene chloride, 2280 grams (10 moles) of bisphenol-A, 28 milliliters of triethylamine, 3.4 grams of sodium gluconate, and 0.40 mole of chain terminating agent. Phosgene was introduced at the rate of 18 grams/minute and phosgenation is continued for 60 minutes. The pH was maintained at between 8.0 and 10.0 by the addition of 25% aqueous sodium hydroxide. After phosgenation has ceased 4 liters of methylene chloride were added, the brine layer separated by centrifuge and the resin solution washed with aqueous acid water. The resin was steam precipitated and dried. To this resin product were added minor amounts (about 0.03 parts by weight per hundred parts by weight of resin) of a phosphite and of an epoxy stabilizer. This resin product was then fed to an extruder operating at a temperature of about 500° F. to extrude the resin into strands and the extruded strands chopped into pellets. The pellets were then injection molded at about 570° F. into test samples measuring about 21/2"×1/2"×1/8".

Aufarbeitung

  1. customTo a reactor fitted with a mechanical agitator
  2. customterminating agent
  3. additionPhosgene was introduced at the rate of 18 grams/minute and phosgenation
  4. temperatureThe pH was maintained at between 8.0 and 10.0 by the addition of 25% aqueous sodium hydroxide
  5. additionwere added
  6. customthe brine layer separated by centrifuge
  7. washthe resin solution washed with aqueous acid water
  8. customprecipitated
  9. customdried
  10. additionTo this resin product were added minor amounts (about 0.03 parts by weight per hundred parts by weight of resin) of a phosphite
  11. customwas then fed to an extruder operating at a temperature of about 500° F.
  12. custommolded at about 570° F. into test samples

Quellen und Nachweise

ORD-Eintrag
ord-785484d2c6a44529a0ae352e0de7e71e
Quelldatensatz
uspto-grants-1983_10
Patentnummer
US04412060

Verknüpfte Notizen

Wird geladen…