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)
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.)
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Sandoz AG
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Sandoz AG
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Publication date
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Priority to ES496821ApriorityCriticalpatent/ES496821A0/en
Publication of ES8300814A3publicationCriticalpatent/ES8300814A3/en
Publication of ES496821A0publicationCriticalpatent/ES496821A0/en
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)
ES496821A1980-11-131980-11-13
A PROCEDURE FOR THE PREPARATION OF NEW POLYAMID-AMI-NAS USABLE AS FLOCULATION AGENTS.
GrantedES496821A0
(en)
METHOD FOR THE INDEPENDENT BINDING OF PROTEINS ON POLYSTYRENE SURFACES WITH THE MAINTENANCE OF THEIR BIOLOGICAL EFFECTIVENESS, THE POLYSTYRENE SURFACES OBTAINED THEREOF AND THEIR USE.
Procedure for the preparation of new herbicides based on acid compounds of halogenated aromatic aminooxiacetico. (Machine-translation by Google Translate, not legally binding)