Browse Prior Art Database

One Method to Generate 100% Gamma Crystal in Vistamaxx™ Performance Polymer and the Effect on the Crystallization Rate Disclosure Number: IPCOM000246891D
Publication Date: 2016-Jul-12
Document File: 4 page(s) / 162K

Publishing Venue

The Prior Art Database


Manipulate the inner structure is an effective way to modify the performance of final product. Here, we discovered that very high fractions or even 100% gamma crystal can be obtained in Vistamaxx™ Performance Polymer. Meanwhile, by controlling the initial melting temperature, crystallization rate is largely increased which will improve the cycle time for the compounding and injection molding fabrication processes.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 45% of the total text.

Page 01 of 4

One Method to Generate 100% Gamma Crystal in Vistamaxx™ 

Performance Polymer and the Effect on the Crystallization Rate 


Manipulate the inner structure is an effective way to modify the performance of final product.  Here, we discovered that very high fractions or even 100% gamma crystal can be obtained in  Vistamaxx™ Performance Polymer.  Meanwhile, by controlling the initial melting temperature,  crystallization rate is largely increased which will improve the cycle time for the compounding  and injection molding fabrication processes. 



Vistamaxx™ Performance Polymer is a propylene based thermoplastic elastomer. It is able to  form a variety of different crystalline polymorphs. Three different crystalline phases: alpha, beta  and gamma crystal have been observed. Alpha crystal is by far the most common phase and  occurs under a large variety of crystallization conditions. But of three crystalline polymorphs,  gamma crystal is the least commonly observed. Gamma crystal needs to be formed under some  rigorous conditions, e.g. high injection molding pressure or degraded molecular chains. Recent  studies  suggest  that  samples  rich  in  gamma  crystal  show  improvement  in  both  strength  and  toughness. 



©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 unaltered and complete, including all of its headers, footers, disclaimers, and other information. You may not copy this document to a Web site or other location. The provider of this document ("Provider") does not guarantee the typical (or other) values. The information in this document relates only to the named product or materials when not in combination with any other product or materials. THE PROVIDER BASED THE INFORMATION ON DATA BELIEVED TO BE RELIABLE ON THE DATE COMPILED, BUT DOES NOT REPRESENT, WARRANT, OR OTHERWISE GUARANTEE, EXPRESSLY OR IMPLIEDLY, THE MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, SUITABILITY, ACCURACY, RELIABILITY, OR COMPLETENESS OF THIS INFORMATION OR THE PRODUCTS, MATERIALS, OR PROCESSES DESCRIBED HEREIN. The user is solely responsible for all determinations regarding any use of material or product and any process in its territories of interest. THE PROVIDER EXPRESSLY DISCLAIMS LIABILITY FOR ANY LOSS, DAMAGE, OR INJURY DIRECTLY OR INDIRECTLY SUFFERED OR INCURRED AS A RESULT OF OR RELATED TO ANYONE USING OR RELYING ON ANY OF THE INFORMATION IN THIS DOCUMENT. There is no endorsement of any product or process, and the Provider expressly disclaims any contrary implication. There is no warranty against patent infringement, indemnity, or any license or immunity granted and the Provider expressly...