Company Filing History:

12 out of 2,033

Basf Corporation

patents

7 out of 454

Basf Wyandotte Corporation

patents

Years Active: 1981-1995

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19 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5478494 - Polyol composition having good flow and formic acid blown rigid (1995-12-26),

2. 5453455 - Rigid polyurethane foams containing lithium salts for energy absorbing (1995-09-26),

3. 5324754 - Lithium-based salts in flexible foams (1994-06-28),

4. 5286758 - Use of formate salts as auxiliary agents for low density rigid foams (1994-02-15),

5. 5258416 - Rigid polyurethane foams containing lithium salts for energy absorbing (1993-11-02),

6. 5248703 - Rigid polyurethane foams containing lithium salts for energy absorbing (1993-09-28),

7. 5179131 - Process for the preparation of polyurethane foams employing polyol (1993-01-12),

8. 4664563 - Rigid polyurethane foams with constant or slightly decreasing strain (1987-05-12),

9. 4614754 - Rigid polyurethane foams with constant or slightly decreasing strain (1986-09-30),

10. 4605725 - Polyurethane sealant compositions and their use as thermal-break sealants (1986-08-12),

11. 4588803 - Polyurethane sealant compositions and their use as thermal-break sealants (1986-05-13),

12. 4585807 - Rigid polyurethane foams employing oxyalkylated ethylenediamine (1986-04-29),

13. 4555531 - Rigid polyurethane foams employing alkylene oxide adducts of (1985-11-26),

14. 4438248 - Trimerization catalysts and organo-mercury compounds as co-catalysts for (1984-03-20),

15. 4332953 - Carbamylbiuret-modified polyisocyanates (1982-06-01),

Title: Innovations of Donald L Christman in Polyurethane Foam Technology

Introduction

Donald L Christman, based in Grosse Ile, MI, is an accomplished inventor with a remarkable portfolio of 19 patents. His work primarily revolves around innovations in polyurethane foam technology, particularly in enhancing the performance and characteristics of polyol compositions.

Latest Patents

Among his latest patents, one notable invention is the "Polyol composition having good flow and formic acid blown rigid." This invention presents a unique polyol composition that, when reacted with an organic isocyanate, demonstrates excellent flow characteristics. This outcome results in a rigid polyurethane foam known for its dimensional stability at low densities. The formulation includes polyoxyalkylene polyether polyols with specific equivalent weights and viscosities, alongside formic acid or a mixture of formic acid and water as blowing agents, coupled with delayed-action blow and gel catalysts. Another significant patent pertains to "Rigid polyurethane foams containing lithium salts for energy absorbing." This invention leverages lithium salts from organic materials to develop foams with superior energy-absorbing properties.

Career Highlights

Donald L Christman has made substantial contributions to the field of materials science throughout his career. He has been an integral part of prominent companies, including BASF Corporation and BASF Wyandotte Corporation. His work has not only advanced technology but has also influenced various applications within industries that rely on high-performance materials.

Collaborations

Throughout his career, Donald has collaborated with many esteemed professionals, including Peter T Kan and Thomas B Lee. These collaborations have contributed to the success and development of innovative solutions in the polyurethane foam sector.

Conclusion

Donald L Christman's contributions to polyurethane foam technology are noteworthy and impactful. His extensive patent portfolio reflects a commitment to innovation and improvement in material properties, paving the way for advancements in various applications. With a solid career and fruitful collaborations, he continues to be an influential figure in the realm of inventions and innovations.

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Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.