This inventor holds 6 USPTO granted patents. Top assignees: Air Products and Chemicals, Inc., Other. Active years: 1983-1992.
Company Filing History:
5 out of 3,219 
1 out of 834,411 Years Active: 1983-1992
Title: Lawrence K Wempe: Innovator in Polymer Chemistry
Introduction
Lawrence K Wempe is a notable inventor based in Center Valley, PA (US). He has made significant contributions to the field of polymer chemistry, holding a total of 6 patents. His work primarily focuses on the development of innovative copolymers with various functionalities.
Latest Patents
One of his latest patents is titled "Vinyl alcohol copolymers containing allylamine functionality." This invention provides a modified poly(vinyl alcohol) copolymer that includes copolymerized units of allylamine and/or diallylamine. The process involves copolymerizing a vinyl ester, such as vinyl acetate, with an N-allylamide and/or N,N-diallylamide, followed by hydrolyzing the ester groups to hydroxy groups and the amide groups to amine groups. The second hydrolysis is performed on solvent-swollen particulate polymer slurried in an acidic or basic medium. The resulting modified polymer may contain small amounts of unhydrolyzed ester and amide groups alongside the hydroxy and amine functionalities that characterize the copolymer.
Another significant patent is "Vinyl acetate copolymer emulsions for paper coating compositions." This invention describes aqueous vinyl ester copolymer emulsions that exhibit excellent dry pick and wet pick strengths in paper coating applications. The copolymer consists of a vinyl ester of a C1-C12 alkanoic acid, along with specific percentages of ethylenically unsaturated mono- or dicarboxylic acids, dicyclopentadienyl acrylate, and alkyl acrylate.
Career Highlights
Throughout his career, Lawrence K Wempe has worked with prominent companies, including Air Products and Chemicals, Inc. His expertise in polymer chemistry has allowed him to develop innovative solutions that have practical applications in various industries.
Collaborations
Lawrence has collaborated with notable colleagues such as Mary L Hausman and Gerald D Miller. These partnerships have contributed to the advancement of his research and the successful development of his patented technologies.
Conclusion
Lawrence K Wempe is a distinguished inventor whose work in polymer chemistry has led to significant advancements in the field. His innovative patents reflect his commitment to developing new materials with enhanced functionalities.