Method of dispersing reinforcing pigments in a latex

There is disclosed a process for blending rubber latices with carbon black or other reinforcing pigments which comprises the use of a 60/40 to 40/60 butadiene/methacrylic acid latex which has been converted to a water soluble polymer through treatment with an alkali metal hydroxide. Said converted b...

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Bibliographische Detailangaben
Hauptverfasser:	AMBLER, MICHAEL R, BURROWAY, GARY L
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS GENERAL PROCESSES OF COMPOUNDING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WORKING-UP
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Beschreibung
Zusammenfassung:	There is disclosed a process for blending rubber latices with carbon black or other reinforcing pigments which comprises the use of a 60/40 to 40/60 butadiene/methacrylic acid latex which has been converted to a water soluble polymer through treatment with an alkali metal hydroxide. Said converted butadiene/methacrylic acid latex is then combined with dry carbon black at a level of 1 to 2 percent butadiene/methacrylic acid dispersing latex solids based on weight of the carbon black. The blended carbon black butadiene/methacrylic acid dispersion is added to rubber latices prior to coagulation. More specifically, this invention is concerned with a carbon black dispersion and its addition to a rubber latex.