Nobuyuki Kawamoto

Title: Nobuyuki Kawamoto and His Patent for Highly Maleated Wax

Introduction

Nobuyuki Kawamoto is an inventor associated with Yanai, Japan, and Mitsui Petrochemical Industries, Ltd. His patent work includes a process for producing highly maleated wax with properties designed to support stable emulsions.

Latest Patents

The supplied information identifies one patent associated with Kawamoto: “Highly Maleated Wax and Process for Producing the Same.” The invention describes a maleated saturated hydrocarbon wax with a number-average molecular weight of 500 to 6,000, a maleic anhydride unit content of 14 to 40 percent by weight, and a melt viscosity of 10² to 10⁶ centipoises at 140°C.

The patent explains that the wax is self-emulsifiable and that its emulsion can be stored for an extended period, even at very low concentrations. The disclosed production process reacts saturated hydrocarbon wax with a specified amount of maleic anhydride in the presence of an organic peroxide. The ingredients are added to molten wax at specified rates and temperatures. Kawamoto’s listed patent portfolio comprises 1 patent.

Career Highlights

Kawamoto is associated with Mitsui Petrochemical Industries, Ltd. The patent’s focus on wax modification and emulsion stability reflects an industrial approach to developing materials with useful processing and storage characteristics.

Collaborations

The supplied information lists Harumi Furuta and Toru Tomoshige as Kawamoto’s coworkers. Their names are provided as professional associations, without further details about their roles in the patent.

Conclusion

Nobuyuki Kawamoto’s documented patent contribution concerns highly maleated wax and a production method intended to yield a self-emulsifiable material with durable emulsion stability.