The invention also relates to microgels obtained by the post-cross-linking thereof, and to the use thereof in the treatment of underground rock formations.
The invention relates to a method for gel post-crosslinking or surface post-crosslinking water-absorbing hydrogels with morpholine-2,3-diones, to the post-crosslinked hydrogels and to the use thereof.
The invention relates to a method for the surface secondary cross-linking of water-absorbent polymers by treatment of the polymers with a solution for surface secondary cross-linking.
The invention relates to a method for the surface secondary cross-linking of water-absorbent polymers, according to which the polymer is sprayed with a solution for surface secondary cross-linking.
The cooling body can be cured by thermal post-cross-linking.
The invention relates to a continuous method for producing a composite element using secondary cross-linking of an adhesive.
The invention relates to a process for producing water-absorbing polymer particles, comprising thermal postcrosslinking in a contact dryer having external heated outer surfaces.
The polyelectrolytes of the multilayers are not connected to each other by covalent bonds, i.e., a chemical post-crosslinking of the produced multilayers has been shown to be unnecessary.
The surface of the polymers is postreticulated at temperatures of ≥ 150 °C, using a combination of a polyol as a postreticulation compound and a cation that is in salt form in an aqueous solution.
A process for classifying water-absorbing polymer particles, wherein screens having different mesh sizes are used before and after surface postcrosslinking to remove the undersize (fines).
The invention also relates to microgels obtained by the post-cross-linking thereof, and to the use thereof in the treatment of underground rock formations.
The invention relates to a method for gel post-crosslinking or surface post-crosslinking water-absorbing hydrogels with morpholine-2,3-diones, to the post-crosslinked hydrogels and to the use thereof.
The invention relates to a method for the surface secondary cross-linking of water-absorbent polymers by treatment of the polymers with a solution for surface secondary cross-linking.
The invention relates to a method for the surface secondary cross-linking of water-absorbent polymers, according to which the polymer is sprayed with a solution for surface secondary cross-linking.
The cooling body can be cured by thermal post-cross-linking.
Requêtes fréquentes français :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
Requêtes fréquentes anglais :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
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