RU93040781A - METHOD FOR ISOLATING OIL-FILLED BUTADIENE- (α-METHYL) -STERILE RUBBERS - Google Patents

METHOD FOR ISOLATING OIL-FILLED BUTADIENE- (α-METHYL) -STERILE RUBBERS

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Publication number
RU93040781A
RU93040781A RU93040781/04A RU93040781A RU93040781A RU 93040781 A RU93040781 A RU 93040781A RU 93040781/04 A RU93040781/04 A RU 93040781/04A RU 93040781 A RU93040781 A RU 93040781A RU 93040781 A RU93040781 A RU 93040781A
Authority
RU
Russia
Prior art keywords
oil
filled
methyl
rubbers
butadiene
Prior art date
Application number
RU93040781/04A
Other languages
Russian (ru)
Other versions
RU2067590C1 (en
Inventor
С.С. Никулин
С.Л. Сидоров
Н.Н. Шаповалова
Л.Д. Кудрявцев
А.В. Молодыко
А.П. Гаршин
Ю.М. Наумова
В.С. Ненахов
И.В. Распопов
П.В. Образцов
Original Assignee
С.С. Никулин
Filing date
Publication date
Application filed by С.С. Никулин filed Critical С.С. Никулин
Priority to RU93040781A priority Critical patent/RU2067590C1/en
Priority claimed from RU93040781A external-priority patent/RU2067590C1/en
Application granted granted Critical
Publication of RU93040781A publication Critical patent/RU93040781A/en
Publication of RU2067590C1 publication Critical patent/RU2067590C1/en

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Claims (1)

Изобретение относится к производству маслонаполненных бутадиен-(альфа-метил)-стирольных каучуков, получаемых эмульсионной сополимеризацией бутадиена со стиролом или альфа-метилстиролом и наполненных минеральными маслами, в частности к способам выделения их из латексов, и может быть использовано в нефтехимической промышленности. Задачей, на решение которой направлено данное изобретение, является стабилизация процесса коагуляции маслонаполненных каучуков, упрощение технологии и улучшение свойств маслонаполненных бутадиен-(альфа -метил)-стирольных каучуков. Это достигается тем, что в известном способе выделения маслонаполненных бутадиен-(альфа-метил)-стирольных каучуков, включающем смешение латекса с маслом, коагуляцию маслонаполненного латекса водным раствором хлорида натрия и минеральной кислоты, выделение крошки каучука и рецикл серума, предварительно латекс обрабатывают масляной суспензией полидиметилдиаллиламмоний хлорида в количестве 1,5 - 0,5 кг/т каучука, а затем в полученную смесь вводят водный раствор хлорида натрия в количестве 20 - 50 кг/т каучука (на сухое вещество).The invention relates to the production of oil-filled butadiene- (alpha-methyl) -styrene rubbers obtained by emulsion copolymerization of butadiene with styrene or alpha-methylstyrene and filled with mineral oils, in particular to methods for their isolation from latexes, and can be used in the petrochemical industry. The problem to which this invention is directed is to stabilize the coagulation process of oil-filled rubbers, simplify the technology and improve the properties of oil-filled butadiene (alpha-methyl) -styrene rubbers. This is achieved by the fact that in the known method for the separation of oil-filled butadiene- (alpha-methyl) -styrene rubbers, including mixing latex with oil, coagulating oil-filled latex with an aqueous solution of sodium chloride and mineral acid, isolating rubber crumbs and recycling serum, the latex is pretreated with an oil suspension polydimethyldiallylammonium chloride in an amount of 1.5 to 0.5 kg / t of rubber, and then an aqueous solution of sodium chloride in an amount of 20 to 50 kg / t of rubber (per dry substance) is added to the resulting mixture.
RU93040781A 1993-08-10 1993-08-10 PROCESS FOR RECOVERING OIL-FILLED BUTADIENE-(α-METHYL) STURENE RUBBER RU2067590C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU93040781A RU2067590C1 (en) 1993-08-10 1993-08-10 PROCESS FOR RECOVERING OIL-FILLED BUTADIENE-(α-METHYL) STURENE RUBBER

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU93040781A RU2067590C1 (en) 1993-08-10 1993-08-10 PROCESS FOR RECOVERING OIL-FILLED BUTADIENE-(α-METHYL) STURENE RUBBER

Publications (2)

Publication Number Publication Date
RU93040781A true RU93040781A (en) 1996-10-10
RU2067590C1 RU2067590C1 (en) 1996-10-10

Family

ID=20146429

Family Applications (1)

Application Number Title Priority Date Filing Date
RU93040781A RU2067590C1 (en) 1993-08-10 1993-08-10 PROCESS FOR RECOVERING OIL-FILLED BUTADIENE-(α-METHYL) STURENE RUBBER

Country Status (1)

Country Link
RU (1) RU2067590C1 (en)

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