Industrial polyolefin piping system
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United States of America Patent
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Mar 12, 2013
Grant Date -
Jun 9, 2011
app pub date -
Feb 11, 2011
filing date -
May 21, 2001
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Industrial polyolefin piping system with improved stiffness, impact strength for use at high service temperature, comprising single or multilayer pipes, fitting, chambers, valves and vessels, consisting of β-nucleated propylene homopolymers with an IRτ≧0.98 having a tensile modulus ≧1500 MPa, a Charpy impact strength, notched, at +23° C.≧30 kJ/m2 and a Vicat B temperature >90° C. and a Heat Distortion Temperature >100° C. The industrial polyolefin piping system is suitable for chemical plant constructions comprising single or multilayer pipes, fittings, chambers, valves and vessels with improved stiffness, impact strength and high service temperature, preferred for conveyance of natural gas, dangerous liquids and/or toxic liquids.
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International Classification(s)
- C08J:WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTE....
- D01D:MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE....
- F16L:PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR ....
- B29C:SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTAN....
- B29D:PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FRO....
- B32B:LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA....
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