Show metadata Hide metadata

(19)

(11)

2 046 790

(13)

(51)

IPC

(21) (22)

Application

93007770/04, 1993-02-12

(22)

Actual filing date

1993-02-12

(45)

Published

1995-10-27

(72)

Inventor

Gerega V.F.Bokser N.A.Dergunov Ju.I.Il'In V.A.Shnepp Ju.B.Kruglov N.N.Pakhotin O.I.Novikov B.V.

(73)

Holder

Gerega Valentin FedorovichBokser Natal'Ja AbramovnaDergunov Jurij IvanovichIl'In Vladimir AleksandrovichShnepp Jurij BorisovichKruglov Nikolaj NikolaevichPakhotin Oleg IvanovichNovikov Boris Vasil'Evich

METHOD FOR PRODUCTION OF POLIPHENYLENEPOLYMETHYLENE POLICARBAMATE Russian patent published in 1995 - IPC

Abstract RU 2046790 C1

FIELD: chemical industry. SUBSTANCE: method involves the use of two reagents: reagent 1 carbamate described by the following formula: C₅H₆ NCOR, where R is lowest alkyl, and reagent 2 aqueous solution of formaldehyde. The synthesis conditions are the following: heating in some aqueous acid solution medium, and 30-75% (mass) of acid are added together with the solution of formaldehyde. The product is readily filtered suspension. EFFECT: higher method efficiency.

Similar patents RU2046790C1

Title	Year	Author	Number
PROCESS FOR PREPARING CARBAMATE	1994	Balabanov Georgij Pimenovich Gerega Valentin Fedorovich Dergunov Jurij Ivanovich Kormushechkin Vladimir Dmitrievich Il'In Vladimir Aleksandrovich Shnepp Jurij Borisovich Pakhotin Oleg Ivanovich Kruglov Nikolaj Nikolaevich Mishchenko Jurij Ivanovich Petrov Evgenij Alekseevich Gura Vasilij Mikhajlovich	RU2067090C1
METHOD OF ARYLUREAS SYNTHESIS	1994	Balabanov Georgij Pimenovich Gerega Valentin Fedorovich Dergunov Jurij Ivanovich Kormushechkin Vladimir Dmitrievich Il'In Vladimir Aleksandrovich Shnepp Jurij Borisovich Pakhotin Oleg Ivanovich Kruglov Nikolaj Nikolaevich Mishchenko Jurij Ivanovich Petrov Evgenij Alekseevich Gura Vasilij Mikhajlovich	RU2064927C1
METHOD OF DIPHENYLMETHANEDIISOCYANATE SYNTHESIS	1989	Logvinova O.I. Gerega V.F. Dergunov Ju.I. Shnepp Ju.B. Il'In V.A. Kruglov N.N. Pakhotin O.I.	SU1829338A1
METHOD OF SYNTHESIS OF ALKYL-N-PHENYLCARBAMATES	1989	Gerega V.F. Kormushechkin V.D. Dergunov Ju.I. Gordetsov A.S. Shnepp Ju.B. Il'In V.A. Kruglov N.N.	SU1702640A1
CATALYST FOR SYNTHESIS OF METHYL-N-PHENYLCARBAMATE	0	Aleksandrov Yurij Arsentevich Bordzilovskij Vladimir Yakovlevich Gerega Valentin Fedorovich Dergunov Yurij Ivanovich Redoshkin Boris Aleksandrovich Ivanchuk Mikhail Vasilevich Shnepp Yurij Borisovich	SU1131531A1
METHOD OF POLYPHENYLENE-POLYMETHYLENE-POLYISOCYANATE MIXTURE SYNTHESIS	1991	Konstantinov I.I. Esin O.V. Kormushechkina A.I. Kurchenko E.V.	RU2007391C1
DI-N-OXIDES OF DIALKYLBENZENE DINITRILES AS LOW-TEMPERATURE RUBBER HARDENERS WITH SMALL UNSATURATION AND A METHOD OF SYNTHESIS OF DI-N-OXIDES OF DIALKYLBENZENE DINITRILES	1992	Borodachev Igor' Viktorovich Volkhonskaja Ekaterina Vladimirovna Guk Jurij Vasil'Evich Zhukov Aleksandr Jur'Evich Tsypin Georgij Ivanovich Chernysheva Svetlana Jur'Evna Antipova Valentina Fedorovna Panova Natal'Ja Valentinovna	RU2042664C1
CATALYST FOR SYNTHESIS OF CARBOMATES AND METHOD OF PREPARING THEREOF	0	Khrzhanovskaya Irina Leonidovna Shtaerman Mark Yakovlevich Gorbunova Lyudmila Vasilevna Abakumov Gleb Arsentevich Razuvaev Grigorij Alekseevich Dergunov Yurij Ivanovich	SU1431827A1
METHOD FOR SYNTHESIS OF (S)-3-[(1-DIMETHYLAMINO)ETHYL]-PHENYL-N-ETHYL-N-METHYL-CARBAMATE	2005	Gkharpur Milind Moreshvar Bkhaval Baburao Manikrao Shakh Viral Bipinbkhaj Zop Umesh Revaj Mekhta Satish Ramanlal	RU2393148C2

RU 2 046 790 C1

Authors

Gerega V.F.

Bokser N.A.

Dergunov Ju.I.

Il'In V.A.

Shnepp Ju.B.

Kruglov N.N.

Pakhotin O.I.

Novikov B.V.

Dates

1995-10-27—Published

1993-02-12—Filed