Tube made of flexible material, procedure for the manufacture of tubes made of flexible material, and the formulation used
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United States of America Patent
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Oct 29, 2013
Grant Date -
Mar 14, 2013
app pub date -
May 6, 2011
filing date -
May 10, 2010
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Abstract
Tube made of flexible manufactured material and a procedure for its manufacture, where all or part of the tube is manufactured by the injection molding of a formulation of plastic materials, which comprises at least one base Random-type polypropylene with an E modulus of between 300 and 1400 MPa, at least another Random-type polypropylene, with a melt flow of between 8 and 75 MFI 230/2.16, at least one copolymer with a modulus of between 10 and 500 MPa, at least one nucleating agent and/or at least one thermal stabilizer. The resulting tube fulfills diverse requirements for flexibility, permeability, welding capacity, mechanical resistance to low temperatures, etc.
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