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High melt strength

Very high melt strength is also observed in situations where the molten polymer contacts a sharp object. Skin packaging trials have successfliUy packaged objects such as arrowheads and fishhooks in ionomer films. [Pg.407]

The high melt strength, facilitating thermoforming and blow moulding techniques. [Pg.525]

The polymers used in blow molding must have a high melt strength. Why is this ... [Pg.258]

Brookfield, Ct., 2002, Session I, p.9-18, 27cm, 012 NOVEL HIGH MELT STRENGTH POLYMERS FOR FOAM APPLICATIONS Mispreuve H Chaudhary B I Thoen J Dow Chemical Co. [Pg.34]

Patent Number EP 928805 A2 19990714 PROCESS FOR MAKING FOAM ARTICLES FROM HIGH MELT STRENGTH PROPYLENE POLYMER MATERIALS... [Pg.67]

Details are given of extrusion and thermoforming lines developed by Italproducts for the manufacture of PP foam containers. The extrusion process using high melt strength PP and chemical blowing agents is described and results are presented of thermoformability studies. [Pg.69]

Mainz, Germany, 4th-5th Nov.1997, p.149-62. 6124 HIGH MELT STRENGTH PP FOAMS FOR THE AUTOMOTIVE AND PACKAGING INDUSTRIES Van Calster M Montell Polyolefins Co. [Pg.76]

Patent Number US 5605936 A 19970225 FOAMED ARTICLES COMPRISING HIGH MELT STRENGTH PROPYLENE POLYMER MATERIAL... [Pg.81]

Thermoformable foamed PP sheet that processes with the same drawdown, sag and cycle times as PS has been manufactured by Omam using new PP blends and Safoam carbon dioxide blowing agents from Reedy International. Oman has already produced monolayer PP sheet with a 40% density reduction and three layer sheet with a 50% density reduction. The trials have been carried out using blends of conventional PP and a new high melt strength PP grade developed by Montell. The Omam line used to produce the foamed PP sheet is conventional apart from... [Pg.87]

The ability to modify their structure and the good cost/ performance ratio makes polyolefins technically and commercially attractive for mechanical energy absorption. This is especially true for High Melt Strength (HMS) PP which allows continuous extrusion foaming. Physical expansion of PP, properties of foamed PP, and application examples are considered in detail, mechanical properties in particular being compared with other polymer foams. [Pg.93]

A comparison is made between a 3.5 melt flow conventional polypropylene homopolymer (Profax 6523) and a 7.0 melt flow, high-melt-strength, foamable PP homopolymer in extensional flow. The importance of extensional or elongational viscosity in the foam process is demonstrated and the way in which the rheological differences permit the production of low-density foam on tandem extrusion equipment is shown. 6 refs. [Pg.108]

HIGH-MELT-STRENGTH PP PERMITS FOAM SHEET EXTRUSION... [Pg.110]

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See also in sourсe #XX -- [ Pg.100 ]



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MELT STRENGTH

Melting strength

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