摘要:
The present invention relates to a fast particulate superabsorbent polymer composition comprising a polymer comprising a neutralized aluminum salt solution applied to the surface of a particulate superabsorbent polymer; wherein an aqueous solution of the neutralized aluminum salt has a pH value from about 5.5 to about 8; and subsequent to subjecting the particulate superabsorbent polymer composition to the Processing Test, the particulate superabsorbent polymer composition has a permeability stability index of from about 0.60 to about 0.99, and a compressibility from 1.30 mm2/N to about 4 mm2/N as measured by the Compression Test, and wherein the particulate superabsorbent polymer composition may have a Vortex time of from 25 to 60 seconds and absorbency under load at 0.9 psi of from 15 to 21 g/g.
摘要:
A process for the preparation of superabsorbent polymer containing clay, the process including the steps of (I) polymerizing a polymerization mixture comprising: (a) one or more ethylenically unsaturated carboxyl-containing monomers, (b) one or more crosslinking agents, (c) optionally one or more comonomers copolymerizable with the carboxyl-containing monomer, (d) neutralizing agent to partially neutralize the polymer to from about 50% to about 99%, by weight, and (e) a polymerization medium, to form a crosslinked partially neutralized hydrogel, (II) admixing a clay with the crosslinked partially neutralized hydrogel to form partially neutralized superabsorbent polymer-clay hydrogel; (III) drying the crosslinked partially neutralized hydrogel at a temperature from about 190° C. to about 210° C. and for a time period of from about 15 minutes to about 120 minutes, and (IV) comminuting the dried partially neutralized superabsorbent polymer-clay hydrogel to particles.
摘要:
The present invention relates to a fast particulate superabsorbent polymer composition comprising a polymer comprising a neutralized aluminum salt solution applied to the surface of a particulate superabsorbent polymer; wherein an aqueous solution of the neutralized aluminum salt has a pH value from about 5.5 to about 8; and subsequent to subjecting the particulate superabsorbent polymer composition to the Processing Test, the particulate superabsorbent polymer composition has a permeability stability index of from about 0.60 to about 0.99, and a compressibility from 1.30 mm2/N to about 4 mm2/N as measured by the Compression Test, and wherein the particulate superabsorbent polymer composition may have a Vortex time of from 25 to 60 seconds and absorbency under load at 0.9 psi of from 15 to 21 g/g.
摘要:
The present invention relates to a particulate superabsorbent polymer composition comprising a polymer comprising a neutralized aluminum salt solution applied to the surface of a particulate superabsorbent polymer; wherein an aqueous solution of the neutralized aluminum salt has a pH value from about 5.5 to about 8 and the particulate superabsorbent polymer composition has a mean particle size distribution of from 300 to 400 μm, an original Free Swell Gel Bed Permeability (FSGBP) of about 20×10−8 cm2 to about 200×10−8 cm2; and subsequent to subjecting the particulate superabsorbent polymer composition to the Processing Test, the particulate superabsorbent polymer composition has a permeability stability index of from about 0.60 to about 0.99 and having particles having a particle diameter of larger than 600 μm in an amount of less than about 15 wt % of the particulate superabsorbent polymer composition and as specified by standard sieve classification.
摘要翻译:本发明涉及一种颗粒状超吸收性聚合物组合物,其包含聚合物,该聚合物包含施加到颗粒状超吸收性聚合物表面上的中和的铝盐溶液; 其中中和的铝盐的水溶液的pH值为约5.5至约8,并且颗粒超吸收聚合物组合物的平均粒度分布为300至400μm,原始的自由溶胀凝胶床渗透性(FSGBP)为约 20×10 -8 cm 2〜约200×10 -8 cm 2; 并且在将颗粒超吸收性聚合物组合物经受加工试验之后,颗粒状超吸收性聚合物组合物的渗透性稳定性指数为约0.60至约0.99,并且具有小于约600μm的粒径大于600μm的颗粒 15重量%的颗粒状超吸收性聚合物组合物,并且由标准筛选分类指定。
摘要:
The present invention relates to a particulate superabsorbent polymer composition comprising a polymer comprising a neutralized aluminum salt solution applied to the surface of a particulate superabsorbent polymer; wherein an aqueous solution of the neutralized aluminum salt has a pH value from about 5.5 to about 8 and the particulate superabsorbent polymer composition has a mean particle size distribution of from 300 to 400 μm, an original Free Swell Gel Bed Permeability (FSGBP) of about 20×10−8 cm2 to about 200×10−8 cm2; and subsequent to subjecting the particulate superabsorbent polymer composition to the Processing Test, the particulate superabsorbent polymer composition has a permeability stability index of from about 0.60 to about 0.99 and having particles having a particle diameter of larger than 600 μm in an amount of less than about 15 wt % of the particulate superabsorbent polymer composition and as specified by standard sieve classification.
摘要翻译:本发明涉及一种颗粒状超吸收性聚合物组合物,其包含聚合物,该聚合物包含施加到颗粒状超吸收性聚合物表面上的中和的铝盐溶液; 其中中和的铝盐的水溶液的pH值为约5.5至约8,并且颗粒超吸收聚合物组合物的平均粒度分布为300至400μm,原始的自由溶胀凝胶床渗透性(FSGBP)为约 20×10 -8 cm 2〜约200×10 -8 cm 2; 并且在将颗粒超吸收性聚合物组合物经受加工试验之后,颗粒状超吸收性聚合物组合物的渗透性稳定性指数为约0.60至约0.99,并且具有小于约600μm的粒径大于600μm的颗粒 15重量%的颗粒状超吸收性聚合物组合物,并且由标准筛选分类指定。
摘要:
The present invention relates to a particulate superabsorbent polymer composition having improved stability comprising a polymer comprising from about 0.01 wt % to about 5 wt % of a neutralized aluminum salt solution applied to the surface of a particulate superabsorbent polymer; wherein an aqueous solution of the neutralized aluminum salt has a pH value from about 5.5 to about 8 and the particulate superabsorbent polymer composition has an original Free Swell Gel Bed Permeability (FSGBP) of about 20×10−8 cm2 to about 200×10−8 cm2 and a compressibility of from about 1.30 mm2/N to about 4 mm2/N prior to subjecting the particulate superabsorbent polymer composition to a Processing Test; and subsequent to subjecting the particulate superabsorbent polymer composition to the Processing Test, the particulate superabsorbent polymer composition has a permeability stability index of from about 0.60 to about 0.99.
摘要翻译:本发明涉及具有改进的稳定性的颗粒状超吸收性聚合物组合物,其包含含有约0.01重量%至约5重量%的中和的铝盐溶液的聚合物,该中和的铝盐溶液施加到颗粒状超吸收性聚合物的表面上; 其中所述中和的铝盐的水溶液具有约5.5至约8的pH值,并且所述颗粒状超吸收性聚合物组合物具有约20×10 -8 cm 2至约200×10 -6 cm -1的原始自由溶胀凝胶床渗透性(FSGBP) 在将颗粒状超吸收性聚合物组合物进行加工试验之前,其压缩率为约1.30mm 2 / N至约4mm 2 / N; 并且在将颗粒状超吸收性聚合物组合物进行加工试验之后,颗粒状超吸收性聚合物组合物的渗透性稳定性指数为约0.60至约0.99。
摘要:
The present invention relates to a particulate superabsorbent polymer composition having improved stability comprising a polymer comprising from about 0.01 wt % to about 5 wt % of a neutralized aluminum salt solution applied to the surface of a particulate superabsorbent polymer; wherein an aqueous solution of the neutralized aluminum salt has a pH value from about 5.5 to about 8 and the particulate superabsorbent polymer composition has an original Free Swell Gel Bed Permeability (FSGBP) of about 20×10−8 cm2 to about 200×10−8 cm2 and a compressibility of from about 1.30 mm2/N to about 4 mm2/N prior to subjecting the particulate superabsorbent polymer composition to a Processing Test; and subsequent to subjecting the particulate superabsorbent polymer composition to the Processing Test, the particulate superabsorbent polymer composition has a permeability stability index of from about 0.60 to about 0.99.
摘要翻译:本发明涉及具有改进的稳定性的颗粒状超吸收性聚合物组合物,其包含含有约0.01重量%至约5重量%的中和的铝盐溶液的聚合物,该中和的铝盐溶液施加到颗粒状超吸收性聚合物的表面上; 其中所述中和的铝盐的水溶液具有约5.5至约8的pH值,并且所述颗粒状超吸收性聚合物组合物具有约20×10 -8 cm 2至约200×10 -6 cm -1的原始自由溶胀凝胶床渗透性(FSGBP) 在将颗粒状超吸收性聚合物组合物进行加工试验之前,其压缩率为约1.30mm 2 / N至约4mm 2 / N; 并且在将颗粒状超吸收性聚合物组合物进行加工试验之后,颗粒状超吸收性聚合物组合物的渗透性稳定性指数为约0.60至约0.99。