Water-based elastomeric coating formulation method and elastomeric coating formed using same
AssigneeWolverine Advanced Materials, LLC
InventorsAbed Hasheminasab, Bryan Grace, Drew Zawacki
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Abstract
The disclosed technology generally relates to methods of forming foamed and non-foamed aqueous rubbers for use in automotive applications and which are configured to provide vibration and noise damping. In one aspect, a method of forming an elastomer comprises forming a latex solution and then curing the latex solution. Forming the latex solution comprises forming a medium by mixing water and ethylene glycol monobutyl ether (glycol ether EB) and then adding to the medium a rheology modifier, a dispersing agent, a wetting agent, a filler material, and a latex suspension. Water makes up 50-90 wt. % of the latex solution.
Claims14
A method of forming an elastomer, the method comprising:
- forming a latex solution, comprising:
- forming a medium by mixing water and ethylene glycol monobutyl ether (glycol ether EB), and,
- adding to the medium a rheology modifier, a dispersing agent, a wetting agent, a filler material, a defoaming agent, and a latex suspension, wherein water makes up 50-90 wt. % of the latex solution;
- and
- curing the latex solution;
- wherein:
- the filler material comprises carbon black;
- the filler material is added to the medium before adding the latex suspension;
- and
- the defoaming agent is added to the medium after adding the filler material but before adding the latex suspension.
A method of forming an elastomer coating, the method comprising:
- providing a substrate;
- forming a latex solution, the latex solution comprising:
- 20-70 wt. % latex suspension;
- 5-30 wt. % glycol ether EB;
- 1-15 wt. % rheology modifier;
- 0.1-2 wt. % dispersing agent;
- 0.1-2 wt. % wetting agent;
- 1-15 wt. % carbon black;
- 0.1-3.1 wt. % de-foaming agent;
- and
- 50-90 wt. % water;
- adding a cure package to the latex solution;
- coating the substrate with the latex solution;
- and
- heating the coated substrate to cure the latex solution;
- wherein forming the latex solution comprises:
- mixing the water and the glycol ether EB;
- after mixing the water and the glycol ether EB, adding the rheology modifier;
- after adding the rheology modifier, adding the dispersing agent and the wetting agent;
- after adding the dispersing agent and the wetting agent, adding the carbon black;
- after adding the carbon black, adding the de-foaming agent;
- and
- after adding the de-foaming agent, adding the latex suspension.
Dependencies are inferred from the claim text.