Technical Developments in the Pigmentation of Thermoplastic Polyester Fibers ― The Use of Molecular Recognition Design Chemistry in the Pigmentation of Condensation Polymers

摘要

A process for stabilizing polyester against the damage effected by light, heat and/or oxidation while improving the processing stability therefore, incorporating by melt processing a synergistic additive system resulting in a uniform and intimate mixture within the polyester. This is done through the utilization of molecular recognition concepts; the processing and coloration of polyester fibers can be significantly impacted in a variety of positive ways: 1. Improved pigment dispersion & uniformity 2. Exhibit outstanding color brightness and color stability 3. Improved surface properties 4. Provides for UV & Thermo-oxidative stability to a molded part 5. Synergistic with UV Stabilizers 6. Maintains and increases physicals The basis of molecular recognition requires two basic criteria or selective intermolecular non-covalent bonding and strong directional forces. Supramolecular Chemistry is described, as chemistry beyond the molecule, the designed chemistry of the intermolecular non-covalent chemistry is that of the covalent bond. This presentation the development efforts behind the introduction of this new technology and the efforts to capture the true essence of the product chemistry beyond the normal perceived scope of utility. This talk will illustrate and enhance improvement of both inorganic and organic colorants in condensation polymer (polyester) with performance towards UV radiation resistance.