Patent ID: 8741987
Filing Date: 2014-06-03
Classification: C08K

Abstract:
1. A polymer silica masterbatch comprising: a. a latex of a natural or a synthetic polymer; b. 0.1 weight percent to 10 weight percent of a nanomaterial comprising a nanotube, a nanorod, a nanoribbon and mixtures thereof to form a density from 0.3 grams per cubic centimeter to 1.4 grams per cubic centimeter of a final material; and c. 5 weight percent to 80 weight percent of a compatibilized silica with 0.1 weight percent to 25 weight percent of a plurality of silane coupling agents chemically bound to its surface wherein the silanes are present as an average tetrameric structure having a T.sup.3/T.sup.2 ratio of 0.75 or greater as measured by NMR and wherein the plurality of silane coupling agents comprises: