This inventor holds 11 USPTO granted patents. Top assignee: 3M Innovative Properties Company. Active years: 1986-1998.
Company Filing History:
Years Active: 1986-1998
Title: W James Hammar: Innovator in Pressure Sensitive Adhesives
Introduction
W James Hammar is a notable inventor based in Saint Paul, MN (US). He has made significant contributions to the field of pressure sensitive adhesives, holding a total of 11 patents. His work has advanced the understanding and application of adhesive technologies.
Latest Patents
One of Hammar's latest patents is focused on Poly(.beta.-hydroxyorganoate) pressure sensitive adhesive compositions. This invention provides pressure sensitive adhesives and the compositions from which they are formed. The adhesives have a glass transition temperature (Tg) of less than about 20°C and include a poly(.beta.-hydroxyorganoate) or a mixture thereof. The patent specifies that a minor amount of the monomeric units can have an R group containing 1-3 carbon atoms, while a major amount should have an R group containing 4-30 carbon atoms.
Career Highlights
Hammar is associated with the Minnesota Mining and Manufacturing Company, a leading organization in adhesive technologies. His innovative work has positioned him as a key figure in the development of new adhesive formulations.
Collaborations
Some of Hammar's notable coworkers include Denise R Rutherford and Gaddam N Babu. Their collaborative efforts have contributed to the advancement of adhesive technologies within their organization.
Conclusion
W James Hammar's contributions to the field of pressure sensitive adhesives demonstrate his innovative spirit and dedication to advancing adhesive technology. His patents reflect a commitment to improving the performance and application of adhesives in various industries.