摘要:
The invention relates to a method for producing water-absorbing polymer particles by means of the spray polymerisation of a monomer solution. According to said method, the monomer solution is sprayed and at least one cross-linking agent is enriched in the region of the drop surface. The invention also relates to the water-absorbing polymer particles thus produced, and hygiene items containing said water-absorbing polymer particles.
摘要:
The invention relates to a method for the production of water absorbent polymer particles by polymerizing drops of a monomer solution in a gas phase surrounding the drops, wherein the initiator of the monomer solution is added 0.5 to 60 seconds before the production of the drops.
摘要:
The invention relates to a method for spray polymerisation of aqueous monomer solutions containing radically polymerisable monomers and at least 55 wt.- % water, for the production of cross-linked, water soluble polymers.
摘要:
The invention relates to a method for the production of water absorbent polymer particles by polymerizing drops, comprising at least one monomer in a gas phase surrounding the drops, wherein the drops are produced by surrounding a first monomer solution with a second monomer solution and polymerizing the second monomer solution to a higher cross-linked polymer than the first monomer solution.
摘要:
The invention relates to method for producing post-cured water-absorbent polymer particles with a higher absorption by polymerising droplets of a monomer solution in a gas phase surrounding the droplets. The solids content of the monomer solution is at least 35 wt% and the polymer particles have an average diameter of at least 150 µm.
摘要:
The invention relates to a dropping method for liquids that employs a dropping plate. According to the invention, at least the underside of the dropping plate has a contact angle of at least 60° to the liquid that is subjected to said method.