Ethylene → Ethylene/methyl acrylate monoethyl maleate

HRID 28069

반응식

HRID 28069 반응식
[C:1](OC)(=O)[CH:2]=C.[C:7]([O:14][CH2:15][CH3:16])(=[O:13])/[CH:8]=[CH:9]\[C:10]([O-:12])=[O:11].C=C.C(OOC(C)(C)C)(=O)C(C)(C)C>C1C=CC=CC=1>[CH2:1]=[CH2:2].[C:7]([O:14][CH3:15])(=[O:13])[CH:8]=[CH2:9].[C:7]([O:14][CH2:15][CH3:16])(=[O:13])/[CH:8]=[CH:9]\[C:10]([O-:12])=[O:11]

참가 물질

6

반응물 4

HCID 6325Ethylene2회HCID 7294Methyl AcrylateHCID 61238tert-BUTYL PEROXYPIVALATEHCID 86733784(Z)-4-ethoxy-4-oxobut-2-enoate

생성물 1

HCID 86733783Ethylene/methyl acrylate monoethyl maleate

시약·촉매·용매 1

HCID 241Benzene용매2회

실험 절차

A mixture of methyl acrylate, monoethyl maleate, and benzene (weight ratio: 68.28/2.46/29.26) was pressured to about 422 kg./sq. cm.; ethylene was separately pressured to about 422 kg./sq. cm. Separate streams of this mixture (0.91 kg./hr.) and ethylene (6.35 kg./hr.) were joined and pressured to 1900 kg./sq. cm. The resulting feed stream then entered the autoclave. Simultaneously, a catalyst solution, made by adding 50 ml. of tert-butyl peroxypivalate to 4.5 kg. of benzene was introduced at the rate of 0.00204 kg./hr. to keep the temperature at 170° C. The effluent from the autoclave passed through a let-down valve to a chamber at atmospheric pressure where most of the residual monomers and solvent flashed off. The ethylene/methyl acrylate/monoethyl maleate terpolymer thus isolated was freed from the small amount of residual volatiles by heating for 16 hours at 80° C. in a nitrogen stream. Acid-base titration indicated that 0.25 meq. of acid groups was present per gram of terpolymer. This corresponds to 3.6 weight percent of monoethyl ester of maleic acid.

후처리

  1. additionby adding 50 ml
  2. customat 170° C
  3. customThe effluent from the autoclave passed through a let-down valve to a chamber at atmospheric pressure where most of the residual monomers and solvent

출처 및 근거

ORD 기록
ord-3c30bea125f6436ead167a3c70ae52bc
출처 데이터셋
uspto-grants-1980_09
특허 번호
US04225476

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