Browse Prior Art Database

New Methodology for Producing High Gloss High Impact ICP via Vistamaxx™ Performance Polymers

IP.com Disclosure Number: IPCOM000245175D
Publication Date: 2016-Feb-16
Document File: 5 page(s) / 239K

Publishing Venue

The IP.com Prior Art Database

Abstract

Impact Copolymer Polypropylene (ICP) has wide application in appliances, consumer products and rigid packaging, where gloss is one of the key criteria. However, due to the high requirement of stiffness impact balance, it is relatively difficult for these ICP's gloss to reach >85 and most commercialized ICPs have a gloss < 85 or more typically <70. For most customers, gloss of 90 or close to 90 means it is a very high end high gloss ICP. To improve gloss at > 85 is challenging. A gloss of >88 ICP can potentially replace low end Acrylonitrile-Butadiene-Styrene (ABS) and High Impact Polystyrene (HIPS). VistamaxxTM performance polymers are a family of polyolefin copolymers, commercially available from ExxonMobil Chemical Company, with good miscibility with ICP. In this work, we demonstrated that blending Vistamaxx with ICP could significantly improve ICP's gloss, increasing the gloss of commercial ICPs. In the examples, Vistamaxx dosage ranges from 0% to 10% and were dry blended with two commercial ICP grades available from ExxonMobil Chemical Company: PP7033E3 and AP3N. In particular, we have produced a superior gloss, excellent impact and high flow version of commercial ICP PP7033E3, by blending Vistamaxx with AP3N. To date, there is no known commercial process to make this type of high gloss ICP with high impact.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 32% of the total text.

Page 01 of 5

New Methodology for Producing High Gloss High Impact ICP via Vistamaxx™ Performance Polymers

Abstract: Impact Copolymer Polypropylene (ICP) has wide application in appliances, consumer products and rigid packaging, where gloss is one of the key criteria. However, due to the high requirement of stiffness impact balance, it is relatively difficult for these ICP's gloss to reach >85 and most commercialized ICPs have a gloss < 85 or more typically

85 is challenging. A gloss of >88 ICP can potentially replace low end Acrylonitrile- Butadiene-Styrene (ABS) and High Impact Polystyrene (HIPS). VistamaxxTM performance polymers are a family of polyolefin copolymers, commercially available from ExxonMobil Chemical Company, with good miscibility with ICP. In this work, we demonstrated that blending Vistamaxx with ICP could significantly improve ICP's gloss, increasing the gloss of commercial ICPs. In the examples, Vistamaxx dosage ranges from 0% to 10% and were dry blended with two commercial ICP grades available from ExxonMobil Chemical Company: PP7033E3 and AP3N. In particular, we have produced a superior gloss, excellent impact and high flow version of commercial ICP PP7033E3, by blending Vistamaxx with AP3N. To date, there is no known commercial process to make this type of high gloss ICP with high impact.

Background:


Impact Copolymer Polypropylene (ICP) has wide application in appliances, consumer products and rigid packaging, where gloss and/or impact are key criteria. However, to date, there is no known commercial process to make high gloss ICP with high impact. The main reason is because high impact ICP requires high ethylene- propylene (EP) rubber content, which directionally lowers gloss since it is more difficult to disperse the high EP rubber content in the manufacturing extruders. High impact ICP grades typically have low gloss of <70 while the highest known gloss ICP ~90 has very low impact properties.

Development:


Vistamaxx 6202 is a propylene based elastomer. Due to the optimized content of propylene and ethylene, Vistamaxx 6202 has very good miscibility with both homopolymer (hPP) and rubber phases in ICP. By blending ICP with Vistamaxx 6202, the rubber dispersion inside ICP can be significantly improved, which led to the improved surface gloss property of ICP. ICP has HPP matrix and EP rubber phases for stiffness and impact balance. However, due to the existence of high EP rubber to provide the high impact requirements, the gloss of ICP is usually not high enough to meet appliance customers' requirement. Poor EP rubber dispersion within the HPP matrix may cause accumulation of this EP rubber phase at the surface, which will significantly scatter the light reflected on the surface and hence, poor gloss.

©2016 All Rights Reserved.  To the extent the user is entitled to disclose and distribute this document, the user may forward, distribute,  and/or photocopy this copyrighted document only if u...