METHOD OF SYNTHESIS OF LINEAR POLYETHERURETHANS Russian patent published in 1996 - IPC

Abstract SU 1203879 A1

FIELD: chemical technology. SUBSTANCE: method involves interaction of hydroxyl-containing polyether with diisocyanate in the melt. If polyether contains basic impurities (up to 40 mc-equiv. HCl/g polyether) synthesis is carried out in the presence of metal chlorides of the transient valency taken from the group including SnCl₂ or SnCl₄•5H₂O, TiCl₄, SbCl₃, FeCl₃.. EFFECT: prevention of gel-formation, improved method of synthesis.

Similar patents SU1203879A1

Title	Year	Author	Number
PROCESS FOR PREPARING LINEAR POLYURETHANES	0	Samigullin Faat Kafizovich Kafengauz Izolda Mikhajlovna Korzyuk Emiliya Leonidovna Frolov Yurij Mikhajlovich Gladkovskij Gleb Alekseevich Nepyshnevskij Vladimir Mikhajlovich Simonovskij Feliks Isaakovich	SU1085988A1
BITUMEN MODIFICATION PROCESS	2005	Petrov Vladimir Gennad'Evich Mitjushina Svetlana Aleksandrovna	RU2296142C2
COPPER-CONTAINING ISOCYANATE OLIGOMER AS STARTING PRODUCT FOR PRODUCING POLYURETHANES HAVING ANTISTATIC PROPERTIES AND PROCESS FOR PREPARING SAME	0	Davletbaeva Ilsiya Mullayanovna Dorozhkin Valerij Petrovich Glebov Aleksandr Nikolaevich Kochkina Lyudmila Vasilevna Sokolskij Sergej Ivanovich Tselikova Elena Petrovna Polukarova Zinaida Timofeevna	SU1071627A1
METHOD FOR OBTAINING POLYETHERURETHANETHIOLES WITH ALCOXYSILANE GROUPS	2018	Valeev Rishat Rashidovich Kurkin Aleksej Igorevich	RU2669567C1
SEWING COMPOSITION FOR PRODUCING POLYESTEREURETHANS FOR MOULDING AND METHOD OF PRODUCING IT	0	Selivanov Andrej Vasilevich Zenitova Lyubov Andreevna Kirpichnikov Petr Anatolevich Kadyrova Venera Khuziakhmetovna Liakumovich Aleksandr Grigorevich Bakirova Indira Nailevna Rozental Natalya Aleksandrovna Mingaleev Gumar Mingazovich	SU1174446A1
METHOD OF PREPARING POLYESTER URETHANE SOLUTION IN ETHYL ACETATE	1993	Samigullin F.K. Korzjuk Eh.L. Novozhilova O.S. Saenko B.V.	RU2042691C1
METHOD OF PREPARING POLYURETHANUREAS IN SOLUTION	0	Kryuchkov F.A. Lobanova L.V. Simanovskij F.I.	SU686390A1
PROCESS FOR PRODUCING BLOCKED ISOCYANATES	0	Balabanov G.P.	SU789515A1
METHOD OF PRODUCING ISCCYANURATE CONTAINING FOAMED PLASTICS	0	Zhitinkina A.K. Tolstykh N.A. Kitaeva L.G. Ivashevskij V.B. Tolstykh T.F.	SU472558A1
MIXTURE FOR PRODUCING STIFF POLYURETHANE FOAM	0	Sivkova Valentina Nikolaevna Polyakov Evgenij Vladimirovich Zhuravlev Evgenij Zosimovich Ivanov Mikhail Georgievich Sokolov Evgenij Pavlovich Dergunov Yurij Ivanovich Chistyakov Anatolij Mikhajlovich Gurev Vladimir Vladimirovich Garshina Oksana Petrovna	SU1654316A1

SU 1 203 879 A1

Authors

Korzjuk Eh.L.

Kafengauz I.M.

Samigullin F.K.

Frolov Ju.M.

Gladkovskij G.A.

Dates

1996-10-27—Published

1982-07-20—Filed