Beer Holthuis

Title: Beer Holthuis and Filament-Wound Composite Manufacturing.

Introduction

Beer Holthuis is an inventor associated with Arnhem, Netherlands, and Plantics Holding B.V. His patent work addresses a process for producing shaped objects from resin-containing fibers through filament winding and curing.

Latest Patents

Holthuis is credited with 1 patent: “Process for manufacturing a shaped object through filament winding.” The invention describes winding resin-containing fibers under tension to form a shaped fibrous object, then curing that object. The resin contains at least 50 percent by weight of a polyester derived from specified aliphatic polyols and aliphatic polycarboxylic acids.

The patent also describes preparing the fibers by contacting them with a liquid resin composition and drying them until they are tacky and contain no more than 25 percent diluent by weight of the resin composition. The claims include the tacky fibers produced by this intermediate process and the resulting shaped fibrous object.

Career Highlights

Holthuis’s listed patent highlights an approach to composite manufacturing that combines controlled fiber winding with polyester-based resin and a curing step. The described process also addresses the preparation and handling of resin-containing fibers before winding.

Collaborations

Holthuis’s listed coworkers include Wridzer Jan Willem Bakker and Martinus Mathilda Pieter Zieverink. His company affiliation is Plantics Holding B.V.

Conclusion

Beer Holthuis’s patent focuses on a filament-winding process for producing shaped fibrous objects, including methods for preparing tacky resin-containing fibers.