process for producing a water-absorbent polymer composition, composite, process for producing a composite, foams, molds, fibers, sheets, films, cables, sealing materials, liquid-absorbent toiletries, plant growth carriers and fungal growth regulators, packaging materials, soil additives or building materials and use of the water absorbing polymer or composite
CHRISTOPH LOICK,JÖRG HARREN,LAURENT WATTEBLED,STEFAN LEININGER
申请号：
BR112013026998
公开号：
BR112013026998A2
申请日:
2012.04.03
申请国别(地区):
BR
年份:
2018
代理人:
摘要：
process for producing a water-absorbent polymer composition, composite, process for producing a composite, foams, molds, fibers, sheets, films, cables, sealing materials, liquid-absorbent toiletries, plant growth carriers and fungal growth regulators, packaging materials, soil additives or building materials and use of the water-absorbent polymer or composite the invention relates to a process for producing a water-absorbent polymer composition comprising (i) mixing (? 1) steps 0.1 to 99.999 wt%, preferably 20 to 98.99 wt%, and even more preferably 30 to 98.95 wt% ethylenically unsaturated polymerised monomers containing groups acids or their ethylenically unsaturated polymerized salts or monomers containing protonated or quaternized nitrogen, or mixtures thereof, with particular preference being given to mixtures containing contain at least ethylenically unsaturated monomers containing acid groups, preferably acrylic acid, (<；2) 2 to 70% by weight, preferably 1 to 60% by weight and more preferably 1 to 40% by weight of ethylenically unsaturated polymerised monomers copolymerized with (? 1), (? 3) 0.001 to 10% by weight, preferably 0.01 to 7% by weight and more preferably 0.05 to 5% by weight of one or more cross-linking agents , (? 4) 0 to 30% by weight, preferably from 1 to 20% by weight and more preferably from 5 to 10% by weight of water soluble polymers, and (? 5) from 0 to 20 wt.%, preferably 0.01 to 7 wt.% and more preferably 0.05 to 5 wt.% of one or more auxiliary agents, wherein the sum of their weights (<；244>； 1) to (<；244 >； 5) is 100% by weight, (ii) cross-linked free radical polymerization to form a water-insoluble, untreated aqueous hydrogel polymer, (iii) hydrogel polymerization and drying, (iv) optionally tri (v) post-crosslinking the surface of the ground polymer hydrogel and (vi) drying and finalizing the water-absorbing polymer, wherein blowing agents having a particle diameter of 100 <；109>； A 900 µm are added to the aqueous monom
