ES8300814A3 - A procedure for the preparation of new polyamid-amines used as flocculation agents. (Machine-translation by Google Translate, not legally binding) - Google Patents

A procedure for the preparation of new polyamid-amines used as flocculation agents. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES8300814A3
ES8300814A3 ES496821A ES496821A ES8300814A3 ES 8300814 A3 ES8300814 A3 ES 8300814A3 ES 496821 A ES496821 A ES 496821A ES 496821 A ES496821 A ES 496821A ES 8300814 A3 ES8300814 A3 ES 8300814A3
Authority
ES
Spain
Prior art keywords
polyamid
translation
procedure
machine
legally binding
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.)
Expired
Application number
ES496821A
Other languages
Spanish (es)
Other versions
ES496821A0 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sandoz AG
Original Assignee
Sandoz AG
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 Sandoz AG filed Critical Sandoz AG
Priority to ES496821A priority Critical patent/ES496821A0/en
Publication of ES8300814A3 publication Critical patent/ES8300814A3/en
Publication of ES496821A0 publication Critical patent/ES496821A0/en
Granted legal-status Critical Current

Links

Abstract

Procedure for the obtaining of polyamid-amines containing a stabilizer and used as agents of flocculation in aqueous suspensions and coloidal dissolutions. It consists of the reaction of a polymer of acrylamide and/or metacrilamide, formaldehyde, a formula r nhr secondary amine, in which ryr can be several types of radicals, and a stabilizer constituted by a nitrogen-containing acid derivative, with less one group -nh in the functional group, capable of reaction balanced with formaldehyde. The reaction is carried out in aqueous medium, at a ph included between 8 and 12, and at a temperature between the environment and 90ºc. (Machine-translation by Google Translate, not legally binding)
ES496821A 1980-11-13 1980-11-13 A PROCEDURE FOR THE PREPARATION OF NEW POLYAMID-AMI-NAS USABLE AS FLOCULATION AGENTS. Granted ES496821A0 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES496821A ES496821A0 (en) 1980-11-13 1980-11-13 A PROCEDURE FOR THE PREPARATION OF NEW POLYAMID-AMI-NAS USABLE AS FLOCULATION AGENTS.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES496821A ES496821A0 (en) 1980-11-13 1980-11-13 A PROCEDURE FOR THE PREPARATION OF NEW POLYAMID-AMI-NAS USABLE AS FLOCULATION AGENTS.

Publications (2)

Publication Number Publication Date
ES8300814A3 true ES8300814A3 (en) 1982-04-01
ES496821A0 ES496821A0 (en) 1982-04-01

Family

ID=8481385

Family Applications (1)

Application Number Title Priority Date Filing Date
ES496821A Granted ES496821A0 (en) 1980-11-13 1980-11-13 A PROCEDURE FOR THE PREPARATION OF NEW POLYAMID-AMI-NAS USABLE AS FLOCULATION AGENTS.

Country Status (1)

Country Link
ES (1) ES496821A0 (en)

Also Published As

Publication number Publication date
ES496821A0 (en) 1982-04-01

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