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:
Jul. 05, 1994
Filed:
Nov. 12, 1993
Shaul M Aharoni, Morris Plains, NJ (US);
AlliedSignal Inc., Morristownship, NJ (US);
Abstract
The invention relates to a process for forming chain extended polymers and graft and block polymers and copolymers which comprises the steps of: (a) forming an intimate mixture of one or more polymers and one or more effective phosphorus (III) chain extension reagent compounds; wherein at least one of said effective chain extension reagents has bonded to the phosphorus (III) atom at least one group which is a nitrogen-containing heteroaromatic moiety that is bonded through a nitrogen of the heteroaromatic moiety to the phosphorus (III) atom by a single bond; and (b) heating said mixture for a time and at a temperature sufficient to form said extended chain polymer or copolymer. Further embodiments relate to polymers and copolymers prepared in accordance with the process of this invention as well as articles formed from these polymers and polymer compositions comprising the polymeric materials of this invention.