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US 5,804,651 AGranted
Heat sensitizable latex
AssigneeThe Goodyear Tire & Rubber Company
InventorsFabienne Arlette Francoise Rouviere, Pascale Francine Jeanne Muller
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AssigneeThe Goodyear Tire & Rubber Company
InventorsFabienne Arlette Francoise Rouviere, Pascale Francine Jeanne Muller
Estimating the term…
This invention discloses heat sensitizable latices and a process for synthesizing heat sensitizable latices. This invention more specifically discloses a process for preparing a heat sensitizable latex which comprises the steps of (1) polymerizing at least one conjugated diolefin monomer in an aqueous polymerization medium by free radical polymerization in the presence of an emulsifier system which is comprised of a fatty ethoxylated monomaleate and optionally an alkyl monomaleate to produce a first latex composition; and (2) adding a water soluble organically modified polysiloxane to the first latex composition to produce the heat sensitizable latex. The present invention further discloses a heat sensitizable latex composition which is comprised of (1) at least one rubbery polymer; (2) water; (3) an emulsifier system which is comprised of a fatty ethoxylated monomaleate and optionally an alkyl monomaleate; and (4) at least one water-soluble organically modified polysiloxane.
A process for preparing a heat sensitizable latex which comprises the steps of (1) polymerizing at least one conjugated diolefin monomer in an aqueous polymerization medium by free radical polymerization in the presence of an emulsifier system which is comprised of a fatty ethoxylated monomaleate and optionally an alkyl monomaleate to produce a first latex composition, with the proviso that the emulsifier system is void of anionic emulsifiers;
Dependencies are inferred from the claim text.