Patent ID: 6800126
Filing Date: 2004-10-05
Classification: C08J,C08L,Y10T

Abstract:
A process of preparing a rubber composition which comprises:(A) blending non-compacted carbon black aggregates with rubber processing oil to form a pre-formed oil/carbon black aggregate composite comprised of said oil and said carbon black aggregates, wherein said rubber processing oil is selected from rubber processing oils comprised of aromatic, paraffinic and/or naphthenic containing rubber processing oils, wherein said rubber processing oil is in a form of: (1) neat oil, or (2) emulsified oil comprised of: (a) water, surfactant and particles of emulsified oil, or (b) aqueous latex of particles of diene-based elastomer(s) and particles of emulsified oil, followed by: (B) blending said pre-formed oil/carbon black aggregate composite with (1) an aqueous emulsion of diene-based elastomer particles, and/or (2) an organic solvent solution of at least one diene-based elastomer, and/or (3) at least one diene-based elastomer, followed by (C) recovering therefrom a pre-formed elastomer composite comprised of said pre-formed carbon black/oil composite and said blended diene-based elastomer by removing said water and/or solvent therefrom, as the case may be, and wherein said recovered elastomer composite is comprised of said blended diene-based elastomer having a dispersion therein of said non-compacted carbon black aggregates.