Efficient process for making tackifiers and adhesives
AssigneeUchicago Argonne, LLC
InventorsBassam J. Jody, Edward J. Daniels
Life of this patent
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Abstract
An improved process for preparing tackifiers and adhesives is an improved energy efficient process for preparing tackifiers, adhesives and dispersions of low-molecular weight polymers and other materials in water. Fine grinding of a low molecular weight polymer is performed to provide the low molecular weight polymer reduced to a selected average particle size in a range between approximately 2.5 μm and approximately 7.5 μm with a maximum particle size of less than 10 μm.
Claims6
A method for preparing tackifiers and adhesives comprising the steps of:
- providing a low-molecular weight polymer;
- cooling said low molecular weight polymer;
- grinding said low molecular weight polymer to provide a reduced average particle size, said reduced average particle size provided in a range between approximately 2.5 μm and approximately 7.5 μm with a maximum particle size of less than 10 μm;
- and
- directly forming a dispersion by mixing said low molecular weight polymer of reduced average particle size with water.
A method for preparing tackifiers and adhesives comprising the steps of:
- providing chips of low-molecular weight polymer;
- cooling said chips of said low-molecular weight polymer using liquid N2 for enhanced reduction in said average particle size;
- grinding said low molecular weight polymer chips to provide a reduced average particle size, said reduced average particle size provided in a range between approximately 2.5 μm and approximately 7.5 μm with a maximum particle size of less than 10 μm.
Dependencies are inferred from the claim text.