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For the Inventor, By the Inventor

Branford, CT, United States of America

Wilhelm J Schnabel

USPTO Granted Patents = 11

Average Co-Inventor Count = 2.1

ph-index = 6

Forward Citations = 108(Granted Patents)


Company Filing History:

goldMedal10 out of 1,963 
 
Olin Corporation
 patents
silverMedal1 out of 2 
 
Olin Corporation Research Center
 patents

Years Active: 1976-1985

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11 patents (USPTO):Explore Patents
1. 4522975 - Select NCO-terminated, uretdione group-containing polyurethane (1985-06-11),
2. 4496684 - Uretdione group-containing polyurethane oligomers and aqueous (1985-01-29),
3. 4489177 - Isocyanate-reactive compounds from TDI distillation residue and (1984-12-18),
4. 4480081 - Isocyanate-reactive compounds from modified TDI distillation residue (1984-10-30),
5. 4385171 - Removal of unreacted diisocyanate from polyurethane prepolymers (1983-05-24),
6. 4263221 - Process for the preparation of aromatic carbodiimides (1981-04-21),
7. 4035318 - High resilience polyurethane foam (1977-07-12),
8. 3993610 - Polyurethane foam (1976-11-23),
9. 3987075 - Solvent extraction and distillation technique for purification of (1976-10-19),
10. 3952043 - Bis (diisocyanatobenzyl) -chlorobenzene (1976-04-20),
11. 3941822 - Process for the preparation of methylene-bridged diaryl isocyanates (1976-03-02),

Title: Wilhelm J Schnabel: Innovator in Polyurethane Technology

Introduction

Wilhelm J Schnabel is a notable inventor based in Branford, CT (US), recognized for his contributions to the field of polyurethane technology. He holds a total of 11 patents, showcasing his innovative spirit and dedication to advancing materials science.

Latest Patents

Schnabel's latest patents include the development of select NCO-terminated, uretdione group-containing polyurethane prepolymers. These prepolymers are synthesized by reacting a uretdione group-containing organic polyisocyanate with an isocyanate reactive hydrogen atom-containing compound, utilizing a specific equivalent ratio of NCO to OH ranging from about 1.5/1 to about 2/1. The resulting polyurethane prepolymers are particularly useful in the creation of lignocellulosic composite materials, such as particle board, and in the formulation of coatings. Another significant patent involves uretdione group-containing polyurethane oligomers, which are produced by reacting a hydroxyl-terminated prepolymer with a dicarboxylic acid anhydride. These oligomers are valuable for preparing aqueous polyurethane dispersions, which serve as adhesives in molded wood products and as coatings for various applications.

Career Highlights

Throughout his career, Schnabel has worked with Olin Corporation and the Olin Corporation Research Center, where he has made significant advancements in polyurethane technology. His work has contributed to the development of innovative materials that have practical applications in various industries.

Collaborations

Schnabel has collaborated with notable colleagues, including James M O'Connor and Robert M Early, further enhancing the impact of his work in the field.

Conclusion

Wilhelm J Schnabel's contributions to polyurethane technology through his patents and career achievements highlight his role as a significant innovator in materials science. His work continues to influence the development of advanced materials for various applications.

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