Rodrigo Marmol

Title: Rodrigo Marmol and His Intumescent Material Patent.

Introduction

Rodrigo Marmol is an inventor associated with Maplewood, Minnesota, and 3M Innovative Properties Company. His patent work includes an invention concerning intumescent materials and articles designed to expand when exposed to heat.

Latest Patents

Marmol is credited with 1 patent: “Intumescent Material and Articles Made Thereof.” The patent describes an intumescent material containing 50–92 wt-% graphite and 8–50 wt-% binder. The material may achieve a free expansion ratio of 100× or greater, with a free expansion aspect ratio of 1.0 or less.

The resulting article may be a sheet or a three-dimensional form, including L-shaped, rectangular, or triangular designs. One possible application is an insert for an electrical box. The insert may cover no more than 75% of the box’s back-wall surface area, and the sheet’s mass relative to the box’s volume may be 3 g/100 cm³ or less. The disclosed manufacturing method mixes graphite and binder on a dry-weight basis, presses or molds the mixture into a shape, and then dries it.

Career Highlights

Marmol’s listed patent reflects work on material composition, expansion behavior, and practical product design. Its described applications include shaped intumescent articles and inserts for electrical boxes.

Collaborations

The provided information lists John C. Hulteen and Sm Ibrahim Al-Rafia as Marmol’s coworkers. It does not specify their roles in the patent or the nature of their collaboration.

Conclusion

Rodrigo Marmol’s patent focuses on graphite-and-binder intumescent materials and adaptable article designs, including potential electrical-box inserts.