NOVA CHEMICALS (INTERNATIONAL) S.A. (20240228681). NONLINEAR RHEOLOGY OF ETHYLENE INTERPOLYMER COMPOSITIONS simplified abstract

NONLINEAR RHEOLOGY OF ETHYLENE INTERPOLYMER COMPOSITIONS

Organization Name

NOVA CHEMICALS (INTERNATIONAL) S.A.

Inventor(s)

Soheil Sadeghi of Calgary (CA)

Fazle Sibtain of Calgary (CA)

Zengrong Zhang of Calgary (CA)

Niousha Kazemi of Calgary (CA)

Monika Kleczek of Calgary (CA)

Vinod Konaganti of Calgary (CA)

Bronwyn Gillon of Calgary (CA)

Shivendra Goyal of Calgary (CA)

Sepideh Kasiri of Calgary (CA)

Stephen Salomons of Calgary (CA)

Kenneth Taylor of Sarnia (CA)

Mehdi Keshtkar of Calgary (CA)

NONLINEAR RHEOLOGY OF ETHYLENE INTERPOLYMER COMPOSITIONS - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240228681 titled 'NONLINEAR RHEOLOGY OF ETHYLENE INTERPOLYMER COMPOSITIONS

The disclosed patent application relates to ethylene interpolymer compositions, films produced from these compositions, and a nonlinear rheology method for detecting long-chain branched structures in the interpolymer compositions.

• Ethylene interpolymer products with a dimensionless nonlinear rheology network parameter greater than or equal to 0.01 are described.
• These products have a residual catalytic metal content of hafnium ranging from 0.03 to 5 ppm.
• The ethylene interpolymer products exhibit a melt index of 0.3 to 500 dg/minute, density of 0.855 to 0.975 g/cc, polydispersity from 1.7 to 25, and a composition distribution breadth index (CDBI) from 1% to 98%.

Potential Applications: - Packaging materials - Industrial films - Consumer goods

Problems Solved: - Improved detection of long-chain branched structures in ethylene interpolymer compositions - Enhanced rheological properties for specific applications

Benefits: - Increased efficiency in production processes - Enhanced product performance - Potential cost savings in manufacturing

Commercial Applications: Title: Advanced Ethylene Interpolymer Compositions for Enhanced Performance in Packaging Materials Description: This technology can be utilized in the production of high-performance packaging materials, leading to improved product quality and cost-effectiveness in the packaging industry.

Questions about Ethylene Interpolymer Compositions: 1. How do ethylene interpolymer compositions differ from traditional polymer blends? - Ethylene interpolymer compositions are unique in their structure, combining different monomers to achieve specific properties not attainable with traditional polymer blends.

2. What are the key factors influencing the rheological properties of ethylene interpolymer compositions? - The rheological properties of ethylene interpolymer compositions are influenced by factors such as molecular weight distribution, composition, and the presence of long-chain branched structures.

Original Abstract Submitted

this disclosure relates to ethylene interpolymer compositions, films prepared therefrom and a nonlinear rheology method capable of determining presence of long-chain branched structures in these ethylene interpolymer compositions. ethylene interpolymer compositions disclosed herein specifically relates to ethylene interpolymer products having: a dimensionless nonlinear rheology network parameter, �., greater than or equal to 0.01, satisfying 0.01�(z−48)≤�≤0.01�(z−60)inequality wherein z is a normalized molecular weight defined by (i) where mw and me are the weight average and entanglement molecular weights; and a residual catalytic metal of from ≥0.03 to ≤5 ppm of hafnium. the disclosed ethylene interpolymer products have a melt index from about 0.3 to about 500 dg/minute, a density from about 0.855 to about 0.975 g/cc, a polydispersity, m/m, from about 1.7 to about 25 and a composition distribution breadth index (cdbi) from about 1% to about 98%.