18598080. DUAL METALLOCENE POLYETHYLENE WITH IMPROVED ESCR FOR ROTOMOLDED, INJECTION MOLDED, AND RELATED PRODUCTS simplified abstract (Chevron Phillips Chemical Company LP)
DUAL METALLOCENE POLYETHYLENE WITH IMPROVED ESCR FOR ROTOMOLDED, INJECTION MOLDED, AND RELATED PRODUCTS
Organization Name
Chevron Phillips Chemical Company LP
Inventor(s)
Richard M. Buck of Bartlesville OK (US)
Jon D. Ratzlaff of Bartlesville OK (US)
Jeffrey S. Fodor of Bartlesville OK (US)
Jim B. Askew of Barnsdall OK (US)
DUAL METALLOCENE POLYETHYLENE WITH IMPROVED ESCR FOR ROTOMOLDED, INJECTION MOLDED, AND RELATED PRODUCTS - A simplified explanation of the abstract
This abstract first appeared for US patent application 18598080 titled 'DUAL METALLOCENE POLYETHYLENE WITH IMPROVED ESCR FOR ROTOMOLDED, INJECTION MOLDED, AND RELATED PRODUCTS
The abstract of the patent application describes ethylene-based polymers with specific characteristics such as melt index, density, and Mw/Mn ratio, along with various properties like environmental stress crack resistance, CY-a parameter, PSP2 value, tan δ at 0.1 sec, Mz, IVc, strain hardening modulus, and ATREF profile.
- Ethylene-based polymers with melt index from 0.8 to 8 g/10 min, density from 0.94 to 0.96 g/cm, and Mw/Mn ratio from 6 to 20 are disclosed.
- These polymers exhibit environmental stress crack resistance of at least 5,000 hr (condition A, 100% Igepal) and at least 2,500 hr (condition A, 10% Igepal).
- The polymers have a CY-a parameter from 0.35 to 0.53, PSP2 value from 5 to 8.5%, tan δ at 0.1 sec from 8 to 24 degrees, Mz from 275,000 to 420,000 g/mol, IVc from 2 to 3 dL/g, and strain hardening modulus from 19 to 47 MPa.
- Additionally, the polymers have an amount of polymer eluting between 93 and 95°C in an ATREF profile of 7 to 30 wt. %.
Potential Applications: - Packaging materials - Agricultural films - Automotive components
Problems Solved: - Improved environmental stress crack resistance - Enhanced mechanical properties - Versatile applications in various industries
Benefits: - Increased durability and longevity - Higher performance under stress conditions - Potential for cost savings in manufacturing processes
Commercial Applications: - Production of durable packaging materials - Manufacturing of high-performance automotive parts - Development of specialized films for agricultural use
Questions about Ethylene-based Polymers: 1. How do these polymers compare to traditional materials in terms of environmental stress crack resistance? 2. What industries are likely to benefit the most from the unique properties of these polymers?
Original Abstract Submitted
Ethylene-based polymers having a melt index from 0.8 to 8 g/10 min, a density from 0.94 to 0.96 g/cm, and a ratio of Mw/Mn from 6 to 20 are disclosed. These polymers can have one or more of an environmental stress crack resistance (ESCR) of at least 5,000 hr (condition A, 100% Igepal), an ESCR of at least 2,500 hr (condition A, 10% Igepal), a CY-a parameter from 0.35 to 0.53, a PSP2 value from 5 to 8.5, a tan δ at 0.1 secfrom 8 to 24 degrees, a Mz from 275,000 to 420,000 g/mol, an IVc from 2 to 3 dL/g, a strain hardening modulus (SHM) from 19 to 47 MPa, and/or an amount of polymer eluting between 93 and 95° C. in an ATREF profile of from 7 to 30 wt. %.
