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Use of VistamaxxTM performance polymers to increase the tear strength of SantopreneTM TPV

IP.com Disclosure Number: IPCOM000247306D
Publication Date: 2016-Aug-19
Document File: 4 page(s) / 128K

Publishing Venue

The IP.com Prior Art Database

Abstract

VistamaxxTM 6202 and 6502 performance polymers were added in a SantopreneTM TPV formulation. Results indicate that the addition of VistamaxxTM 6202, 6502 in SantopreneTM 121-60M200 TPV composition shows a significant effect improvement on the tear strength. Experimental results demonstrate that 10% Vistamaxx addition is the optimal percentage to balance all the mechanical properties; no synergy is observed in the mixture of VistamaxxTM 6202 and 6502; and VistamaxxTM 6502 shows better performance compared with 6202.

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Use of VistamaxxTM performance polymers to increase the tear strength of SantopreneTM TPV

Abstract: VistamaxxTM 6202 and 6502 performance polymers were added in a SantopreneTM TPV formulation. Results indicate that the addition of VistamaxxTM 6202, 6502 in SantopreneTM 121-60M200 TPV composition shows a significant effect improvement on the tear strength. Experimental results demonstrate that 10% Vistamaxx addition is the optimal percentage to balance all the mechanical properties; no synergy is observed in the mixture of VistamaxxTM 6202 and 6502; and VistamaxxTM 6502 shows better performance compared with 6202.

Background:

Automotive window sealing system includes a glass encapsulation with an injection molding process. The tear strength of the molded part is the key for the part performance, as the property is the resistance to the growth of a cut or nick in the profile when tension is applied. The tear strength of SantopreneTM 121-60M200 TPV for glass encapsulation is often insufficient to meet end use performance requirements.

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Development:

Pre-trial was conducted by blending different polymers with 121-60M200: Polypropylene (PP3155), Plastomer (Exact 9371) and propylene-based elastomer (VistamaxxTM 6202 and 6502) to evaluate the effect on tear strength. Results indicate that adding two grades of Vistamaxx 6000 series could improve tear strength while maintaining the h...