Patenton — panteon of patents

(19)

RU

(11)

2 042 752

(13)

C1

(51)

IPC

(21) (22)

Application

93016363/05, 1993-03-31

(22)

Actual filing date

1993-03-31

(45)

Published

1995-08-27

(72)

Inventor

Musina T.K.Oprits Z.G.Shchetinin A.M.Malinin N.N.Andriashin A.I.

(73)

Holder

Musina Tamara Kurmangazievna

METHOD FOR PRODUCTION OF POLYIMIDE THREADS HAVING IMPROVED MECHANICAL AND THERMAL CHARACTERISTICS Russian patent published in 1995 - IPC

Abstract RU 2042752 C1

FIELD: textile industry. SUBSTANCE: solution of aromatic polyamide acid in polar aprotic solvent is extruded, the process is carried out in aqueous-organic precipitation bath. Then drying and heat treatment are carried out. The latter process takes place in chamber in inert medium in the presence of orthophosphoric acid, at tension not more 10 cm/tex, temperature at outlet of said chamber being by 250-400 C more than at its inlet. EFFECT: improves efficiency of the method. 1 tbl

Similar patents RU2042752C1

Title Year Author Number
HIGH-STRENGTH HIGH-MODULUS THERMAL-, FIRE-RESISTANT POLYIMIDE THREAD AND METHOD FOR PRODUCTION THEREOF 2017
  • Musina Tamara Kurmangazievna
  • Oprits Zinaida Grigorevna
  • Shchetinin Aleksandr Mikhajlovich
  • Derkacheva Svetlana Yurevna
  • Tsvetkova Tamara Ruslanovna
 RU2687417C1
THREADS MADE FROM COMPLETELY AROMATIC POLYIMIDES WITH HIGH UNIFORMITY OF PHYSICAL AND MECHANICAL PROPERTIES AND METHOD FOR PRODUCTION THEREOF 2015
  • Musina Tamara Kurmangazievna
  • Oprits Zinaida Grigorevna
  • Andrijashin Aleksandr Ivanovich
  • Shchetinin Aleksandr Mikhajlovich
  • Musin Ruslan Rustemovich
 RU2603796C2
INSULATING COATING 1999
  • Musin R.R.
  • Musina T.K.
  • Oprits Z.G.
  • Shchetinin A.M.
 RU2153722C1
METHOD OF THERMAL STABILIZATION OF POLYIMIDE 0
  • Oprits Z.G.
  • Smirnova A.I.
  • Kravchenko T.V.
  • Solomon Z.G.
 SU670126A1
METHOD OF PRODUCING POLYIMIDE FIBERS 0
  • Koton M.M.
  • Florinskij F.S.
  • Frenkel S.Ya.
  • Korzhavin L.N.
  • Pushkina T.P.
  • Prokopchuk N.R.
 SU765413A1
THERMOSTABLE PROTECTION CUP 1992
  • Musina T.K.
  • Oprits Z.G.
  • Shchetinin A.M.
  • Malinin N.N.
 RU2057558C1
METHOD OF PREPARING OF POLYAMIDOACID SOLUTION FOR FIBER FORMING 1991
  • Mikhajlov G.M.
  • Korzhavin L.N.
  • Kudrjavtsev V.V.
  • Koton M.M.
  • Maricheva T.A.
  • Ivanova M.A.
  • Bobrova N.V.
  • Bronnikov S.V.
  • Grigor'Eva N.A.
  • Shkurko O.P.
  • Borovik V.P.
  • Jakopson S.M.
  • Karchmarchik O.S.
 RU2034861C1
METHOD FOR PREPARING SOLUTION FOR FORMATION OF LIGHT-PROTECTING POLYIMIDE FIBER 1989
  • Oprits Z.G.
  • Smirnova A.I.
  • Abramova N.S.
  • Baranovskaja R.P.
  • Nikitina S.P.
  • Lazutkina T.P.
 RU2034939C1
ULTRA-FILTRATING HEAT AND CHEMICAL RESISTANT POLYIMIDE MEMBRANE AND METHOD OF ITS 2006
  • Polotskaja Galina Andreevna
  • Meleshko Tamara Konstantinovna
  • Polotskij Aleksandr Evgen'Evich
  • Cherkasov Andrej Nikolaevich
 RU2335335C2
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

RU 2 042 752 C1

Authors

Musina T.K.

Oprits Z.G.

Shchetinin A.M.

Malinin N.N.

Andriashin A.I.

Dates

1995-08-27—Published

1993-03-31—Filed

read Similar patents