Patenton — panteon of patents

(19)

RU

(11)

2 026 316

(13)

C1

(51)

IPC

(21) (22)

Application

5050178/05, 1992-06-30

(22)

Actual filing date

1992-06-30

(45)

Published

1995-01-09

(72)

Inventor

Klimov V.I.Tugolukova L.F.Shkal'Kov D.A.Kostina L.N.Turkina S.P.Shkal'Kova V.I.Panchukov V.F.Trepakova T.G.

(73)

Holder

Aktsionernaja Firma

PROCESS FOR PREPARING POLYAMIDOACID SOLUTION Russian patent published in 1995 - IPC

Abstract RU 2026316 C1

FIELD: organic chemistry. SUBSTANCE: a process for preparing low viscous polyamidoacid solutions in polar solvents suitable for use as electroinsulating varnishes. This is achieved by carrying out condensation of dianhydrides of aromatic tetracarboxylic acids and aromatic diamines at 10-25 C till the dianhydride is completely dissolved and the polymer solution is then heated to 75-100 C and kept for 0.5-1.5 hr. EFFECT: greater efficiency of the process. 1 tbl

Similar patents RU2026316C1

Title Year Author Number
HOMOGENEOUS METHOD OF PRODUCING POLYMINO ACIDS 0
  • Avetisyan Nataliya Georgievna
  • Moiseev Vladimir Dmitrievich
  • Chernova Aleksandra Grigorevna
  • Pilyaeva Valentina Fedorovna
  • Vorobev Vladimir Dmitrievich
  • Kandyba Leonid Borisovich
 SU960198A1
METHOD FOR PRODUCING POLYAMIDE ACID SOLUTION BASED ON 4,4'-DIAMINOTRIPHENYLAMINE 2007
  • Vulakh Evgenij L'Vovich
  • Kudrjavtsev Lev Vjacheslavovich
 RU2352595C2
COPOLYMIDES 1977
  • Novikov S.S.
  • Khardin A.P.
  • Radchenko S.S.
  • Novakov I.A.
  • Orlinson B.S.
  • Blinov V.F.
  • Gerashchenko Z.V.
  • Zimin Ju.B.
  • Voishchev V.S.
  • Krupenin N.V.
 SU681865A1
POLYIMIDES CONTAINING ANTHRACENE IN CHAIN 1975
  • Kotov B.V.
  • Kolninov O.V.
  • Gordina T.A.
  • Mostovoj R.M.
  • Fedorova T.A.
  • Pravednikov A.N.
  • Sidaravichjus I.B.
  • Gajdjalis V.I.
  • Rybalko T.I.
  • Ljudkjavichjus A.L.
 SU669724A1
METHOD OF SOLUTION PREPARING FOR FORMING OF POLYIMIDE FIBER 1982
  • Oprits Z.G.
  • Smirnova A.I.
  • Kudrjavtsev G.I.
  • Lazutkina T.P.
  • Kuzina E.F.
  • Tokarev A.V.
 RU2032779C1
METHOD FOR PRODUCING POLYAMIDE ACID BASED ADDITIVE AND COMPOSITIONS FOR MAKING ANTIADHESIVE, NON-STICK AND ANTIFRICTION COATINGS FOR METAL SURFACES 2013
  • Andrejchikova Galina Emel'Janovna
 RU2557530C2
0
  • Inostrantsy Redzhinald Dzhon Vil Rejnolde Dzhon David Seddon
  • Inostranna Firma Imperial Kemikal Indastriz Limited
 SU270629A1
0
SU281295A1
METHOD FOR PRODUCTION OF POLYIMIDE THREADS HAVING IMPROVED MECHANICAL AND THERMAL CHARACTERISTICS 1993
  • Musina T.K.
  • Oprits Z.G.
  • Shchetinin A.M.
  • Malinin N.N.
  • Andriashin A.I.
 RU2042752C1
METHOD OF PREPARING OF POLYIMIDE ANTIADHESION COATING 1992
  • Vasilenko N.A.
  • Kotov B.V.
  • Antonovskaja G.I.
  • Lushkina T.L.
  • Sviridov E.B.
 RU2021296C1

RU 2 026 316 C1

Authors

Klimov V.I.

Tugolukova L.F.

Shkal'Kov D.A.

Kostina L.N.

Turkina S.P.

Shkal'Kova V.I.

Panchukov V.F.

Trepakova T.G.

Dates

1995-01-09—Published

1992-06-30—Filed

read Similar patents