US 2010/0143597 A1 · COMPOUND AND METHOD FOR PRODUCING THE SAME

Abstract

The invention provides a compound and method of producing the same. The method of the invention includes the following steps. First of all, Polycaprolactone (PCL), dimethylol propionic acid (DMPA), 4,4′-methylenebis (cyclohexyl isocyanate) (H12MDI), and dibutyltin dilaurate (DBT) are mixed in a solvent in the first place and a solution is formed. This solution is then mixed with triethylamine (TEA) and triethylene tetramine (TETA). After that, amino-terminated anionic waterborne polyurethane (WPU) is produced. A sol-gel process is proceeded with a mixture of amino-terminated anionic waterborne polyurethane, tetraethylorthosilicate (TEOS) without any extra catalyst, and a compound, waterborne polyurethane-silica nanocomposite materials, is eventually produced.

Claims12

Dependent claims

A method for producing a compound comprising the following steps:

mixing polycaprolactone, dimethylol propionic acid, 4,4′-methylenebis (cyclohexyl isocyanate) and dibutyltin dilaurate in a solvent to form a first solution;
mixing the first solution with a triethylamine solution to form a second solution;
mixing the second solution with deionized water to form a second aqueous solution;
mixing the second aqueous solution with a triethylene tetramine solution to form a third solution;
filtering the third solution in a pressure-reducing environment to obtain a waterborne polyurethane solution, and the terminal of the waterborne polyurethane comprising an amino group;
mixing the waterborne polyurethane solution with tetraethylorthosilicate to form a fourth solution;
and
coating part of the fourth solution on a carrier and heating the fourth solution on the carrier to form the compound with thin film type.

5 more elements

Dependencies are inferred from the claim text.

Compound and method for producing the same

Life of this patent

Compound and method for producing the same

Life of this patent

Abstract

Claims12