RU2000108298A - METHOD FOR PRODUCING γ-POLIOXYMETHYLENE - Google Patents

METHOD FOR PRODUCING γ-POLIOXYMETHYLENE

Info

Publication number
RU2000108298A
RU2000108298A RU2000108298/04A RU2000108298A RU2000108298A RU 2000108298 A RU2000108298 A RU 2000108298A RU 2000108298/04 A RU2000108298/04 A RU 2000108298/04A RU 2000108298 A RU2000108298 A RU 2000108298A RU 2000108298 A RU2000108298 A RU 2000108298A
Authority
RU
Russia
Prior art keywords
producing
trioxane
polioxymethylene
methanol
solvent
Prior art date
Application number
RU2000108298/04A
Other languages
Russian (ru)
Other versions
RU2176650C1 (en
Inventor
Василий Михайлович Зиновьев
Игорь Анатольевич Сусоров
Лев Борисович Сироткин
Вячеслав Султанович Матыгуллин
Елена Леонидовна Голубцова
Геннадий Васильевич Куценко
Original Assignee
Государственное унитарное предприятие "Научно-исследовательский институт полимерных материалов" (ГУП "НИИПМ)
Filing date
Publication date
Application filed by Государственное унитарное предприятие "Научно-исследовательский институт полимерных материалов" (ГУП "НИИПМ) filed Critical Государственное унитарное предприятие "Научно-исследовательский институт полимерных материалов" (ГУП "НИИПМ)
Priority to RU2000108298A priority Critical patent/RU2176650C1/en
Priority claimed from RU2000108298A external-priority patent/RU2176650C1/en
Application granted granted Critical
Publication of RU2176650C1 publication Critical patent/RU2176650C1/en
Publication of RU2000108298A publication Critical patent/RU2000108298A/en

Links

Claims (1)

Способ получения γ--полиоксиметилена полимеризацией производного формальдегида в среде растворителя в присутствии метанола и сернокислотного катализатора, отличающийся тем, что в качестве растворителя используют тетрахлорметан, и процесс проводят при концентрации триоксана 3,0-5,0 моль/дм3, массовой доле метанола 4-6% от массы триоксана, массовой доле 5-15%-го раствора серного ангидрида в серной кислоте 8-12% от массы триоксана.The method of producing γ - polyoxymethylene by polymerization of a formaldehyde derivative in a solvent in the presence of methanol and a sulfuric acid catalyst, characterized in that carbon tetrachloride is used as a solvent, and the process is carried out at a concentration of trioxane of 3.0-5.0 mol / dm 3 , mass fraction of methanol 4-6% by weight of trioxane, mass fraction of 5-15% solution of sulfuric anhydride in sulfuric acid 8-12% by weight of trioxane.
RU2000108298A 2000-04-03 2000-04-03 METHOD OF PREPARING γ-POLYOXYMETHYLENE RU2176650C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2000108298A RU2176650C1 (en) 2000-04-03 2000-04-03 METHOD OF PREPARING γ-POLYOXYMETHYLENE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2000108298A RU2176650C1 (en) 2000-04-03 2000-04-03 METHOD OF PREPARING γ-POLYOXYMETHYLENE

Publications (2)

Publication Number Publication Date
RU2176650C1 RU2176650C1 (en) 2001-12-10
RU2000108298A true RU2000108298A (en) 2001-12-20

Family

ID=20232813

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2000108298A RU2176650C1 (en) 2000-04-03 2000-04-03 METHOD OF PREPARING γ-POLYOXYMETHYLENE

Country Status (1)

Country Link
RU (1) RU2176650C1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2467023C1 (en) * 2011-09-06 2012-11-20 Открытое акционерное общество "Научно-исследовательский институт полимерных материалов" METHOD OF OBTAINING HIGHLY DISPERSIVE γ-POLYOXYMETHYLENE

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