HUT34519A - Process for the production of copolymer from vinyl-pyrrolidon and from maleic anhydride,as well as for the production of cosmetics therefrom - Google Patents
Process for the production of copolymer from vinyl-pyrrolidon and from maleic anhydride,as well as for the production of cosmetics therefromInfo
- Publication number
- HUT34519A HUT34519A HU112983A HU112983A HUT34519A HU T34519 A HUT34519 A HU T34519A HU 112983 A HU112983 A HU 112983A HU 112983 A HU112983 A HU 112983A HU T34519 A HUT34519 A HU T34519A
- Authority
- HU
- Hungary
- Prior art keywords
- production
- pyrrolidon
- cosmetics
- copolymer
- vinyl
- Prior art date
Links
Landscapes
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Copolymeric poly-anions of formula (I) are prepd. by radical copolymerisation of a 1:1 mixt. of the monomers in an oxygen free organic solvent in the presence of a radical producing initiator, at 60-70 deg.C for 3-5 hrs. The prod. is purified pref. by extn. with benzene or chloroform, and opt. transformed into acid, amide or ehter. The concn. of comonomers is 2-3 mole per litre. - In the formula X+ = H, alkali-metal or an organic cation, R = -OH, -OR', -SR' or -NR'R'', R' = alkyl, alkenyl or alkinyl, aryl or a heterocyclic qp., R'' = H or R'.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HU112983A HU194286B (en) | 1983-04-01 | 1983-04-01 | Process for producing copolymeres from vinyl-pyrrolidones and maleinanhydrides |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HU112983A HU194286B (en) | 1983-04-01 | 1983-04-01 | Process for producing copolymeres from vinyl-pyrrolidones and maleinanhydrides |
Publications (2)
Publication Number | Publication Date |
---|---|
HUT34519A true HUT34519A (en) | 1985-03-28 |
HU194286B HU194286B (en) | 1988-01-28 |
Family
ID=10952956
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HU112983A HU194286B (en) | 1983-04-01 | 1983-04-01 | Process for producing copolymeres from vinyl-pyrrolidones and maleinanhydrides |
Country Status (1)
Country | Link |
---|---|
HU (1) | HU194286B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6664369B1 (en) | 1994-08-10 | 2003-12-16 | Creighton University | GnRH analogues with antitumour effects and pharmaceutical compositions thereof |
-
1983
- 1983-04-01 HU HU112983A patent/HU194286B/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6664369B1 (en) | 1994-08-10 | 2003-12-16 | Creighton University | GnRH analogues with antitumour effects and pharmaceutical compositions thereof |
Also Published As
Publication number | Publication date |
---|---|
HU194286B (en) | 1988-01-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
HU90 | Patent valid on 900628 | ||
HMM4 | Cancellation of final prot. due to non-payment of fee |