Edward William Gillow

Title: Edward William Gillow and the Manufacture of Vesiculated Polymer Granules.

Introduction

Edward William Gillow was an inventor associated with Wilmington, Delaware, and E. I. du Pont de Nemours and Company. His recorded patent concerns a process for producing vesiculated cross-linked polyester resin granules.

Latest Patents

Gillow’s listed patent, “Manufacture of Vesiculated Polymer Granules,” describes preparing granules by polymerizing a water-in-oil-in-water emulsion. The process combines a polymerizable, water-immiscible oil phase containing an ethylenically unsaturated monomer and a polyester condensation product with an aqueous phase.

The invention initiates polymerization almost immediately after the emulsion forms. It does so by bringing the oil phase, at 10°C to 40°C, into contact with an aqueous phase containing a strong base and heated to 65°C to 95°C. This rapid reaction helps preserve small oil-phase globules before significant agglomeration occurs, reducing particle size and variation in particle size. The resulting granules are intended for use as an opacifying pigment, including in latex paints, where they can improve hiding power. Gillow is credited with 1 patent.

Career Highlights

The available information associates Gillow’s patent work with E. I. du Pont de Nemours and Company. The patent reflects research into polymer processing and the production of resin particles with properties suited to coatings.

Collaborations

Andrejs Baidins is identified as Gillow’s coworker. The available details do not specify the nature of their collaboration or whether Baidins contributed to this patent.

Conclusion

Edward William Gillow’s recorded invention applies rapid emulsion polymerization to produce smaller, more uniform vesiculated polyester granules, with potential benefits for the hiding power of latex paints.