BELT FOR DRIVE TECHNOLOGY, PARTICULARLY A BELT-LIKE TRACTIVE ELEMENT FOR ELEVATOR TECHNOLOGY, WITH FIRE-RESISTANT PROPERTIES
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United States of America Patent
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May 11, 2015
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Nov 9, 2012
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Abstract
A belt for drive technology having a belt body made from two polymer materials (A) and (B) with elastic properties and including a top layer as the belt back and a substructure with a force transfer zone and a tension member embedded in the belt body. The first material (A) contains 15 to 50% w/w of at least one fire-resistant additive and is used everywhere in the belt body where high mechanical properties are not required and the second material (B) contains 5 to 35% w/w of at least one fire-resistant additive and is used in the are of the belt body that is subjected to the highest mechanical stresses. The belt is particularly used as a tractive element for hoisting technology.
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