Diluted anti-tack formulation and method of use of diluted anti-tack formulation

A diluted aqueous anti-tack dispersion comprising:

• an anti-tack dispersion in concentrated form and including talc particles having a median particle size range of less than 7 microns, the talc particles in an amount ranging from 40% to 72% of the total dispersion weight, the aqueous anti-tack dispersion having a total solids content 45-75% by weight of the anti-tack dispersion, the talc particles dispersed in the aqueous anti-tack dispersion and forming a slurry the anti-tack dispersion in concentrated form further comprising:
• a polyquaternary cationic polymer having a molecular weight between about 50,000 to 2,000,000 Daltons in an effective amount to at least prevent hard pack settling of the talc when the anti-tack dispersion is used in a diluted form for coating uncured rubber compound products and/or improving anti-tack coating coverage of the uncured rubber compound products;
• one or a combination of the following:
• a) one or more nonionic surfactants of intermediate HLB value of 6 to 12 in a total amount ranging from about 0.01-4.0% of the total dispersion weight;
• and
• b) one or more alkali metal, saturated or unsaturated, C8-C20 fatty acid soaps in a total amount ranging from about 0.01-3.0% of the total dispersion weight;
• and
• optionally, one or more suspension aids in a total amount of not more than about 2.0% by weight of the dispersion;
• and
• the balance water,
• the anti-tack dispersion diluted to form a diluted anti-tack dispersion such that the total solid content for the diluted anti-tack dispersion ranges from about 1 to 10%.

A diluted aqueous anti-tack dispersion comprising at least one mineral pigment, the at least one mineral pigment including talc particles, the talc particles having a median particle size range of less than 7 microns, the talc particles in an amount ranging from 0.4% to 7.2% of the total dispersion weight, the aqueous anti-tack dispersion having a total solids content 1-10% by weight of the anti-tack dispersion, the talc particles dispersed in the aqueous anti-tack dispersion and forming a slurry, the diluted anti-tack dispersion further comprising:

• a polyquaternary cationic polymer having a molecular weight between about 50,000 to 2,000,000 Daltons in an effective amount to at least prevent hard pack settling of the talc when the anti-tack dispersion is used in a diluted form for coating uncured rubber compound products and/or improving anti-tack coating coverage of the uncured rubber compound products;
• one or a combination of the following:
• a) one or more nonionic surfactants of intermediate HLB value of 6 to 12 in a total amount ranging from about 0.0001-0.4% of the total dispersion weight;
• and
• b) one or more alkali metal, saturated or unsaturated, C8-C20 fatty acid soaps in a total amount ranging from about 0.0001-0.3% of the total dispersion weight;
• and
• optionally, one or more suspension aids in a total amount of not more than about 0.2% by weight of the dispersion;
• and
• the balance water.