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For the Inventor, By the Inventor

Odenthal, Germany

Manfred Dollhausen

USPTO Granted Patents = 18

Average Co-Inventor Count = 3.6

ph-index = 11

Forward Citations = 404(Granted Patents)


Location History:

  • Hitdorf, DE (1976)
  • Odenthal, DE (1976 - 1990)

Company Filing History:

goldMedal18 out of 12,157 
 
Bayer Aktiengesellschaft
 patents

Years Active: 1976-1990

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18 patents (USPTO):Explore Patents
1. 4946535 - Polyester polyurethanes containing hydroxyl end groups and their use as (1990-08-07),
2. 4870206 - Aromatic polyisocyanates, their preparation and use as components for (1989-09-26),
3. 4870129 - Adhesive and use of the adhesive for the formation of bonds (1989-09-26),
4. 4824595 - Polyisocyanate compositions containing reversibly blocked catalysts and (1989-04-25),
5. 4663377 - Polyisocyanate preparation dispersible in water and their use as an (1987-05-05),
6. 4595445 - Adhesive joining of surfaces using thermosetting polyurethane urea (1986-06-17),
7. 4521545 - Latent catalysts for the isocyanate polyaddition reaction (1985-06-04),
8. 4436570 - Process for bonding films (1984-03-13),
9. 4433095 - Aqueous adhesives containing water-dispersible polyisocyanate (1984-02-21),
10. 4426487 - Mixtures of NCO prepolymers containing tertiary nitrogen atoms and the (1984-01-17),
11. 4307227 - Ester-modified polyamides (1981-12-22),
12. 4255569 - Process for the production of isocyanurate polyisocyanates, and products (1981-03-10),
13. 4240861 - Process for the preparation of dihydroxypolyurethanes and the use (1980-12-23),
14. 4193832 - Method for making bonds (1980-03-18),
15. 4180638 - Storable polychloroprene adhesives and a process for their production (1979-12-25),

Title: The Innovations of Manfred Dollhausen

Introduction

Manfred Dollhausen is a notable inventor based in Odenthal, Germany. He has made significant contributions to the field of polymer chemistry, particularly in the development of polyester polyurethanes. With a total of 18 patents to his name, Dollhausen has established himself as a key figure in the industry.

Latest Patents

Dollhausen's latest patents include innovative formulations of polyester polyurethanes containing hydroxyl end groups. These new, substantially linear polyester polyurethanes are based on selected starting materials and are designed for use as adhesives or in the production of adhesives. Another significant patent involves an adhesive that consists primarily of an aqueous solution or dispersion of a polyurethane containing chemically incorporated carboxylate and/or sulphonate groups. This adhesive is prepared from a mixture of at least two (cyclo)-aliphatic diisocyanates and selected polyester diols, specifically those based on adipic acid and tetramethylenediol or hexamethylenediol. The use of these aqueous solutions is particularly effective for forming bonds on various substrates, including leather, plastics, rubber materials, and polyvinyl chloride containing plasticizers.

Career Highlights

Dollhausen has spent a significant portion of his career at Bayer Aktiengesellschaft, where he has been instrumental in advancing adhesive technologies. His work has not only contributed to the company's portfolio but has also had a lasting impact on the industry as a whole.

Collaborations

Throughout his career, Dollhausen has collaborated with esteemed colleagues such as Rudolf Hombach and Horst Muller-Albrecht. These partnerships have fostered innovation and have led to the successful development of various adhesive technologies.

Conclusion

Manfred Dollhausen's contributions to the field of polyester polyurethanes and adhesives highlight his innovative spirit and dedication to advancing technology. His patents and collaborations reflect a commitment to excellence in polymer chemistry.

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