Metal oxide particles with uniform multilayer polymer coatings

• Main Authors: JANKOLOVITS JOSEPH, GAZIT OZ M, KATZ ALEXANDER S, ROPER III JOHN A, BOHLING JAMES C
• Format: Patent
• Language: Chinese; English
• Published: 13.07.2016
• Subjects: ADHESIVES; CHEMISTRY; DYES; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; POLISHES; PREPARATION OF CARBON BLACK; TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES

The present invention relates to a multilayered composite comprising porous metal oxide particles covalently bonded by way of inorganic ether groups to one or more sites of a first polyhydroxyl-functionalized polymer. This first polymer is in turn covalently bonded by way of inorganic ether groups to one or more sites of a second polyhydroxyl-functionalized polymer. The multilayered composites can be prepared by contacting porous inorganic-oxide particles with a sufficient amount of OH-reactive crosslinking agent to form metal oxide particles imbibed with the crosslinking agent, and then contacting the inorganic-oxide particles with a solution of polyhydroxyl-functionalized polymer under reactive conditions. 本发明是种多层复合材料，其包含借助于无机醚基共价键结到聚羟基官能化的第聚合物的个或多个位点的多孔金属氧化物粒子。此第聚合物又借助于无机醚基共价键结到聚羟基官能化的第二聚合物的个或多个位点。所述多层复合物可以通过以下来制备：使多孔无机氧化物粒子与足够量的OH反应性交联剂接触以形成吸收所述交联剂的金属氧化物粒子，并接着使所述无机氧化物粒子与聚羟基官能化的聚合物的溶液在反应条件下接触。