This inventor holds 2 USPTO granted patents. Top assignee: Imperial Chemical Industries Limited. Active years: 1988-1989.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1988-1989
Title: Guy Frijns: Polymer Chemistry Inventor
Introduction
Guy Frijns is an inventor associated with Rixensart, Belgium, and Imperial Chemical Industries Limited. His patent work focuses on polymeric polyamines and processes for preparing polyurea and polyurea/polyurethane polymers. He is associated with 2 patents.
Latest Patents
Frijns’s listed patents address related advances in polymer chemistry.
- **Process for Preparing Polyurea and Polyurea/Polyurethane Polymers.** This invention describes producing polyurea or polyurea/polyurethane compounds by reacting an organic polyisocyanate with a diamine chain extender and an isocyanate-reactive polymer. The polymer includes a polymeric polyamine with a molecular weight of 1,000 to 16,000 and two to four primary amino groups per molecule. The described polyamine is made by condensing a polycarboxylic acid or ester with an excess of a polyamine having terminal propoxy groups.
- **Polymeric Polyamines.** This invention concerns polymeric polyamines with a molecular weight of 1,000 to 16,000 and two to four primary amino groups per molecule. It describes producing them by condensing a polycarboxylic acid or ester with a stoichiometric excess of a polyamine having terminal aminopropoxy groups and a molecular weight below 500.
Career Highlights
Frijns’s listed inventions connect the design of polymeric polyamines with their use in polyurea and polyurea/polyurethane production. The patent descriptions emphasize molecular weight, amino-group content, and the chemical reactions used to prepare these materials. His work is associated with Imperial Chemical Industries Limited.
Collaborations
David J. Sparrow and James M. Bentley are identified as Frijns’s coworkers. Their names provide context for the professional network associated with his patent work.
Conclusion
Guy Frijns’s two listed patents focus on polymeric polyamines and their application in producing polyurea and polyurea/polyurethane compounds, reflecting a specialized contribution to polymer chemistry.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile