Raymond C Yap

Title: The Innovations of Raymond C. Yap

Introduction

Raymond C. Yap is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of chemical engineering, particularly in the development of road marking compositions and hydrocarbon resins. With a total of 2 patents to his name, his work has had a lasting impact on various industries.

Latest Patents

One of his latest patents focuses on road marking compositions. This invention involves the inclusion of a substantially saturated dicarboxylic acid, anhydride, or ester substituted with at least one hydrogen and carbon-containing group of at least 30 carbon atoms. Additionally, it may include an acidic C2 and/or C3 olefin polymer or copolymer with a molecular weight ranging from 500 to 30,000, having an acid number from 30 to 300 wt. % of a resin in a resin-based hot melt road marking formulation containing aggregate. This formulation results in improved color and melt viscosity.

Another significant patent by Yap is related to novel hydrocarbon resins and their use in adhesives. This invention describes hydrogenated hydrocarbon resins derived from cyclopentadiene and/or substituted cyclopentadiene, characterized by a softening point below 90°C and a glass transition temperature (Tg) from 35 to 70 degrees lower than the softening point. These resins contain less than 12 wt. % with a molecular weight above 1000 and are particularly useful as tackifiers in pressure-sensitive adhesives. Their application can eliminate the need for plasticizing oil in hydrogenated styrene/butadiene/styrene block copolymer adhesive formulations.

Career Highlights

Raymond C. Yap has worked with prominent companies such as Exxon Chemical Patents, Inc. and Exxon Research and Engineering Company. His experience in these organizations has allowed him to refine his expertise in chemical formulations and adhesive technologies.

Collaborations

Throughout his career, Yap has collaborated with notable professionals in the field, including Olivier H. Lacoste and Alain De Regel. These collaborations have contributed to the advancement of his research and innovations.

Conclusion

Raymond C. Yap's contributions to the field of chemical engineering through his patents and collaborations highlight his innovative spirit and dedication to improving industrial applications. His work continues to influence the development of advanced