基本信息:
- 专利标题: COMPOUNDED SURFACE TREATED CARBOXYALKYLATED STARCH POLYCRYLATE COMPOSITES
- 专利标题(中):化合物表面处理的羧甲基纤维素聚酰胺复合材料
- 申请号:PCT/US2013/037274 申请日:2013-04-19
- 公开(公告)号:WO2013158945A1 公开(公告)日:2013-10-24
- 发明人: SUAREZ-HERNANDEZ, Oscar
- 申请人: ARCHER DANIELS MIDLAND COMPANY
- 申请人地址: 4666 Faries Parkway Decatur, Illinois 62526 US
- 专利权人: ARCHER DANIELS MIDLAND COMPANY
- 当前专利权人: ARCHER DANIELS MIDLAND COMPANY
- 当前专利权人地址: 4666 Faries Parkway Decatur, Illinois 62526 US
- 代理机构: KUNG, Vincent T. et al.
- 优先权: US61/635,335 20120419
- 主分类号: C08J3/24
- IPC分类号: C08J3/24
摘要:
A dual-surface treated composite superabsorbent particle comprising a polycarboxylate polymer (e.g., saponified polyacrylamide) and a carboxylated starch polymer is disclosed. The surface of the particle is cross linked through esterification with a C 2 -C 4 polyol exemplified with glycerol. In addition, the surface region is crosslinked through ionic bonds with a trivalent metal ion exemplified with aluminum. In a critical method of making, the acidification of the surface with the polyol occurs prior to treatment with the trivalent metal ion, which results is a hybrid particle that can include up to about 40% of carboxymethyl starch yet exhibit a FSC of at least 47 g/g, a CRC of at least 27 g/g, an AUL of at least 18 g/g under a load of 0.7 psi, and a SFR of at least 180 ml/min. Also disclosed is a method of making that includes a surface esterification prior to aluminum treatment.
摘要(中):
公开了一种包含多羧酸盐聚合物(例如皂化聚丙烯酰胺)和羧化淀粉聚合物的双表面处理复合超吸收颗粒。 颗粒的表面通过酯化与C2-C4多元醇交联,以甘油为例。 此外,表面区域通过离子键与以铝为例列举的三价金属离子交联。 在制备的关键方法中,用三元金属离子处理之前,用多元醇进行表面酸化发生,这是一种杂化颗粒,其可以包括高达约40%的羧甲基淀粉,但表现出至少47的FSC g / g,至少27g / g的CRC,在0.7psi负载下至少18g / g的AUL和至少180ml / min的SFR。 还公开了一种制备方法,其包括在铝处理之前的表面酯化。
IPC结构图谱:
C | 化学;冶金 |
--C08 | 有机高分子化合物;其制备或化学加工;以其为基料的组合物 |
----C08J | 加工;配料的一般工艺过程;不包括在C08B,C08C,C08F,C08G或C08H小类中的后处理 |
------C08J3/00 | 高分子物质的处理或配料的工艺过程 |
--------C08J3/24 | .高分子的交联,如硫化 |