The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 19, 1978
Filed:
Sep. 17, 1976
Henry Alsberg, Northbrook, IL (US);
Dale W Skalla, Oak Park, IL (US);
Michael R Tirpak, Maywood, IL (US);
Richardson Corporation, Des Plaines, IL (US);
Abstract
A two step process for the production of high impact strength polymer compositions. The process includes reacting an acrylic and a vinyl aromatic with an elastomeric polymer, forming an intermediate reaction product containing acrylic and vinyl aromatic units grafted on to the elastomeric polymer backbone. Additional acrylic and vinyl aromatic are added and a final reaction product suitable for use in molding processes is produced. Preferably, both steps of the process are carried out in aqueous suspension. The product is made up of an insitu mixture of a graft polymer having elastomeric polymer backbone and a random polymer made up of units of vinyl aromatic and acrylic units.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile