[go: up one dir, main page]

KR910011926A - Process for preparing low molecular water soluble polymer - Google Patents

Process for preparing low molecular water soluble polymer Download PDF

Info

Publication number
KR910011926A
KR910011926A KR1019890018799A KR890018799A KR910011926A KR 910011926 A KR910011926 A KR 910011926A KR 1019890018799 A KR1019890018799 A KR 1019890018799A KR 890018799 A KR890018799 A KR 890018799A KR 910011926 A KR910011926 A KR 910011926A
Authority
KR
South Korea
Prior art keywords
weight
low molecular
added
water soluble
isopropyl alcohol
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
KR1019890018799A
Other languages
Korean (ko)
Inventor
박봉근
윤여경
이재덕
Original Assignee
최근선
주식회사 럭 키
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 최근선, 주식회사 럭 키 filed Critical 최근선
Priority to KR1019890018799A priority Critical patent/KR910011926A/en
Publication of KR910011926A publication Critical patent/KR910011926A/en
Withdrawn legal-status Critical Current

Links

Landscapes

  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

내용 없음No content

Description

저분자성의 수용성 중합체의 제조방법Process for preparing low molecular water soluble polymer

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

Claims (2)

과항산 암모늄 0.1~0.5중량%를 물 10~15중량%에 용해시킨 후, 이소프로필 알코올 40~50중량% 넣고 혼합하면서 80~87℃까지 가열하면서 용축시켜 이소프로필 알코올의 반응 혼합액(A)을 만들고, 과황산 암모늄 0.5~0.9중량%을 물 7~20중량%에 용해시킨 후, 아크릴산 20~30중량%를 가한 혼합액(B)을 만들고, 물 6~14중량%에 2-머캡토 에탄올 0.1~1.5중량%를 가한 혼합액(C)을 만들고, 상기 (A)에 (B), (C)를 동시에 15~60분 동안 서서히 투입한 후, 80~87℃에서 용축 가열하면서 30 내지 60분 동안 방치한다음, 이소프로필 알코올을 완전 제거시킨 후, 수산화나트륨용액(40중량%)28.0 내지 4.0중량%를 투입하여 pH 8.5로 맞춘 저분자성의 폴리아크릴산 나트륨 수용액의 제조방법.0.1 to 0.5% by weight of ammonium peroxide was dissolved in 10 to 15% by weight of water, and 40-50% by weight of isopropyl alcohol was mixed and melted while heating to 80 to 87 ° C while mixing to react the reaction mixture (A) of isopropyl alcohol. Then, 0.5 to 0.9% by weight of ammonium persulfate was dissolved in 7 to 20% by weight of water, and then a mixed solution (B) to which 20 to 30% by weight of acrylic acid was added was prepared. To prepare a mixed solution (C) to which ~ 1.5% by weight was added, and slowly adding (B) and (C) to the above (A) for 15 to 60 minutes at the same time, and for 30 to 60 minutes while molten heating at 80 ~ 87 ℃ After leaving the isopropyl alcohol completely, 28.0 to 4.0% by weight of sodium hydroxide solution (40% by weight) was added to prepare a low molecular weight sodium polyacrylate aqueous solution adjusted to pH 8.5. 제1항에 있어서, 폴리아크릴산 나트륨의 수용액의 점도가 50 ~ 150cps(25℃) 되도록 하는 것이 특징인 방법.The method according to claim 1, wherein the viscosity of the aqueous solution of sodium polyacrylate is 50 to 150 cps (25 ° C). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019890018799A 1989-12-18 1989-12-18 Process for preparing low molecular water soluble polymer Withdrawn KR910011926A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019890018799A KR910011926A (en) 1989-12-18 1989-12-18 Process for preparing low molecular water soluble polymer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019890018799A KR910011926A (en) 1989-12-18 1989-12-18 Process for preparing low molecular water soluble polymer

Publications (1)

Publication Number Publication Date
KR910011926A true KR910011926A (en) 1991-08-07

Family

ID=67662463

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890018799A Withdrawn KR910011926A (en) 1989-12-18 1989-12-18 Process for preparing low molecular water soluble polymer

Country Status (1)

Country Link
KR (1) KR910011926A (en)

Similar Documents

Publication Publication Date Title
NO176467C (en) Process for Preparation of an Antacid Preparation Containing Pectin
KR870002076A (en) Process for preparing torasemide stable variant and pharmaceutical composition thereof
KR910009729A (en) Novel polypeptide compound and preparation method thereof
DK327583D0 (en) PROCEDURE FOR PREPARING ETHYLCELLULOSEMICROCAPLES
DE3572020D1 (en) Gelled aqueous compositions
KR890007722A (en) Pharmaceutical composition containing excipon and demand polymer
GB1357442A (en) Polymeric phenazinium compounds
JPS5584304A (en) Preparation of polyacrylic acid alkali metal salt bridged polymer
KR910011645A (en) Aqueous beta cobalt (II) hydroxide and preparation method thereof
IE43653L (en) Sequestration of oxygen dissolved in water
KR920002673A (en) Process for preparing alkoxy-terminated poly (diorganosiloxane)
KR900014256A (en) Muddy water treatment method
KR910011926A (en) Process for preparing low molecular water soluble polymer
KR840001530A (en) Dispersant Composition
US3555006A (en) Polysaccharide polymer cyclic ketals
KR880009937A (en) Method for preparing substituted 3-alkylquinoline-8-carboxylic acid
KR870010096A (en) Low molecular weight copolymer of vinyl halide / vinylacetate prepared by water soluble polymerization
KR840004928A (en) Method for producing a diaryl pigment
JPS5350245A (en) Compsition giving mildew-resisting and viscosity reduction-preventingproperties to aqueous high polymer
KR840006657A (en) Method for preparing isoquinoline compound
SU1623991A1 (en) Process for stabilization of gialuronic acid
ES8107261A1 (en) Process for preparing an acrylonitrile polymer.
ATE72834T1 (en) PROCESS FOR PREPARING AN AQUEOUS SOLUTION OF HETEROPOLYSACCHARIDE.
JPS5223018A (en) Process for preparation of acrylamide crystal
KR850001526A (en) Preparation of Powdered Fibrin Glycool Calcium

Legal Events

Date Code Title Description
PA0109 Patent application

Patent event code: PA01091R01D

Comment text: Patent Application

Patent event date: 19891218

PG1501 Laying open of application
PC1203 Withdrawal of no request for examination
WITN Application deemed withdrawn, e.g. because no request for examination was filed or no examination fee was paid