SU1195628A1 - COMPOSITION FOR GETTING A SEMI-PERMEABLE MEMBRANE - Google Patents

COMPOSITION FOR GETTING A SEMI-PERMEABLE MEMBRANE

Info

Publication number
SU1195628A1
SU1195628A1 SU3687741/05A SU3687741A SU1195628A1 SU 1195628 A1 SU1195628 A1 SU 1195628A1 SU 3687741/05 A SU3687741/05 A SU 3687741/05A SU 3687741 A SU3687741 A SU 3687741A SU 1195628 A1 SU1195628 A1 SU 1195628A1
Authority
SU
USSR - Soviet Union
Prior art keywords
composition
formaldehyde
getting
semi
permeable membrane
Prior art date
Application number
SU3687741/05A
Other languages
Russian (ru)
Inventor
Н.А. Дюдина
М.Е. Богданов
В.Б. Яковлев
Е.Ф. Кузнецова
Л.В. Ежова
В.П. Паутов
Original Assignee
Переславский филиал Всесоюзного государственного научно-исследовательского и проектного института химико-фотографической промышленности
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Переславский филиал Всесоюзного государственного научно-исследовательского и проектного института химико-фотографической промышленности filed Critical Переславский филиал Всесоюзного государственного научно-исследовательского и проектного института химико-фотографической промышленности
Priority to SU3687741/05A priority Critical patent/SU1195628A1/en
Application granted granted Critical
Publication of SU1195628A1 publication Critical patent/SU1195628A1/en

Links

Landscapes

  • Separation Using Semi-Permeable Membranes (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

Композиция для получения полупроницаемой мембраны, содержащая поливиниловый спирт, полиэлектролит и сшивающий агент, отличающаяся тем, что, с целью повышения проницаемости мембраны по отношению к низкомолекулярным веществам, повышения прочности в набухшем состоянии, в качестве сшивающего агента композиция содержит продукт конденсации мочевины с формальдегидом при мольном соотношении 1 : 1,3 - 1 : 1,8 и содержания свободного формальдегида 2,5 - 3,0% при следующем содержании компонентов, мас.ч.:Поливиниловый спирт - 74,07 - 76,92Полиэлектролит - 18,52 - 19,23Продукт конденсации мочевины с формальдегидом - 3,85 - 7,41Composition for producing a semipermeable membrane containing polyvinyl alcohol, polyelectrolyte and a crosslinking agent, characterized in that, in order to increase the permeability of the membrane to low molecular weight substances, increase the strength in the swollen state, as a crosslinking agent, the composition contains a condensation product of urea with formaldehyde at molar the ratio of 1: 1.3 - 1: 1.8 and the content of free formaldehyde 2.5 - 3.0% with the following content of components, parts by weight: Polyvinyl alcohol - 74.07 - 76.92Polyelectrolyte - 18.52 - 19 , 2 3Condensation product of urea with formaldehyde - 3.85 - 7.41

SU3687741/05A 1984-01-09 1984-01-09 COMPOSITION FOR GETTING A SEMI-PERMEABLE MEMBRANE SU1195628A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU3687741/05A SU1195628A1 (en) 1984-01-09 1984-01-09 COMPOSITION FOR GETTING A SEMI-PERMEABLE MEMBRANE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU3687741/05A SU1195628A1 (en) 1984-01-09 1984-01-09 COMPOSITION FOR GETTING A SEMI-PERMEABLE MEMBRANE

Publications (1)

Publication Number Publication Date
SU1195628A1 true SU1195628A1 (en) 2000-09-20

Family

ID=60540850

Family Applications (1)

Application Number Title Priority Date Filing Date
SU3687741/05A SU1195628A1 (en) 1984-01-09 1984-01-09 COMPOSITION FOR GETTING A SEMI-PERMEABLE MEMBRANE

Country Status (1)

Country Link
SU (1) SU1195628A1 (en)

Similar Documents

Publication Publication Date Title
DE3269660D1 (en) Hollow chitosan fibres, and the process for their preparation
ES8202041A1 (en) Preparation of high molecular polytetramethylene adipamide.
DE3771948D1 (en) PRODUCTION OF VERY PURE, HOMOGENEOUS ZIRCONOXIDE MIXTURES.
JPS5237830A (en) Polyvinyl alcohol hollow fibers for dialysis
SU1195628A1 (en) COMPOSITION FOR GETTING A SEMI-PERMEABLE MEMBRANE
DE3574935D1 (en) PERITONEAL DIALYSIS SOLUTIONS.
ATE7507T1 (en) SHELF-STABLE POLYACRYLATE-MODIFIED MELAMINE RESIN SOLUTION, PROCESS FOR THEIR PRODUCTION AND ITS USE.
ATE86251T1 (en) POLYCYCLIC COMPOUNDS, THEIR PRODUCTION AND FORMULATIONS CONTAINING THEM.
DE58908067D1 (en) Process for the preparation of concentrated solutions of cationic dyes.
IE45242L (en) Oxygen-heterocyclic compounds
DE3670088D1 (en) STORAGE-CONCENTRATED CONCENTRATED AQUEOUS SOLUTIONS OF MELAMINE FORMALDEHYDE CONDENSATES, METHOD FOR THE PRODUCTION THEREOF AND THEIR USE.
ES2009085A6 (en) Rot resistant paper
ATE8986T1 (en) PROCESS FOR PRODUCTION OF FORMALDEHYDE.
JPS5315272A (en) Bonding method for semipermeable membranes made of acrylonitrile copolymer
ES8506069A1 (en) Process for inhibiting the gelatinising of concentrated aqueous photoactivator solutions.
JPS57147429A (en) Microcapsule
JPS57202362A (en) Water-resistant composition
SU887165A1 (en) Composition for impregnating wood
JPS5480406A (en) Preparation of urokinase for injection
KR920006002A (en) Carcinogen
JPS5291898A (en) Water-insoluble tannin preparation
KR890007866A (en) Synthetic resin production method by the miscibility of polyurethane and polyethylene
ES2005034A6 (en) Manufacture of fibreboard
IT7950415A0 (en) FOR THEIR PRODUCTION, IMPROVEMENT IN CELLULOSE DIALYSIS MEMBRANES AND PROCEDURE
JPS5320485A (en) Immobilized enzymes or microbial cells and their preparation