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:
May. 12, 2026
Filed:
Jul. 23, 2021
Nova Chemicals (International) S.a., Fribourg, CH;
Zengrong Zhang, Calgary, CA;
Fazle Sibtain, Calgary, CA;
Stephen Brown, Calgary, CA;
Monika Kleczek, Calgary, CA;
NOVA Chemicals (International) S.A., Fribourg, CH;
Abstract
This disclosure relates to ethylene interpolymer products comprising a Melt Flow-Intrinsic Viscosity Index value, MFIVI, of from ≥0.05 to ≤0.80; a first derivative of a melt flow distribution function, formula (I) of form ≥−1.85 to ≤−1.51; an unsaturation ratio, UR, of from >0.06 to ≤0.60; and a residual catalytic metal of from ≥0.03 to ≤5 ppm of hafnium. Ethylene interpolymer products comprise at least two ethylene interpolymers. Ethylene interpolymer products are characterized by a melt index (I) from 0.3 to 500 dg/minute, a density from 0.855 to 0.975 g/cc and from 0 to 25 mole percent of one or more a-olefins. Ethylene interpolymer products have polydispersity, M/M, from 1.7 to 25; and CDBIvalues from 1% to 98%. These ethylene interpolymer products have utility in flexible and rigid applications.