polyurethane

Definitions

  • WordNet 3.6
    • n polyurethane any of various polymers containing the urethane radical; a wide variety of synthetic forms are made and used as adhesives or plastics or paints or rubber
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Usage


In news:

Huntsman Polyurethanes Division company profile on Coatings World in the Urethane And Polyurethane Resins category.
View Other Urethane And Polyurethane Resins companies.
Durable Styling with Film-forming Polyurethane .
Sprayed-in-place polyurethane foam ( SPF ) is a viable roof system that has been used for decades.
Is a spray polyurethane foam system right for your next roofing project.
Rosen sofa in multi-density polyurethane foam and Outback polyurethane in Pearl by Dellarobbia.
Well into his 70s, Terry Martin could be found most days in his Dana Point workshop sanding blocks of polyurethane foam into precision-shaped surfboards .
Terrane tile in polyurethane faux leather in Cinder by NappaTile, through Concertex, 201-654-6160.
Mr Champeny could continue to make the polyurethane and acrylic products.
Huntsman Rises as Polyurethane Profits Boost Earnings.
The collaboration brought together Bayer's expertise in custom polyurethane resin system development and Deceuninck's long experience in design and manufacturing .
This feature from Bayer MaterialScience, an industry leader in polyurethane chemistry, provides formulating help to readers.
Hartz has designed this unique product with a sturdy latex exterior and a special foam polyurethane filled interior for added chewing pleasure.
Sanding between coats of polyurethane is tough on sandpaper.
Thermoplastic polyurethane Davidson DP 200 rebounds fully after being struck.
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In science:

The insulator used is a polyurethane resin1 developed to withstand temperatures as low as 77 K without loosing its insulating properties (25 kV/cm).
A prototype liquid Argon Time Projection Chamber for the study of UV laser multi-photonic ionization
They arrived as 12-cm wide by 17.5-cm long “ribbons.” Each ribbon came as a self-contained structure with the individual 0.5-mm fibers held adjacent by a coating of a polyurethane-acrylic blend cement.
A Tungsten / Scintillating Fiber Electromagnetic Calorimeter Prototype for a High-Rate Muon g-2 Experiment
The detector is contained within a polyurethane-lined cavity 22 meters in diameter by 34 meters high, filled with ultra-pure light water.
Astrophysical Neutrino Telescopes
First of all, a selection of an aluminum core surrounded by a layer of polyurethane was made.
Theoretical foundations for on-ground tests of LISA PathFinder thermal diagnostics
Aluminum is a good heat conductor and is easy to work with in the laboratory; polyurethane is a good insulator and is also convenient to handle, as it can be foamed to any desired shape from canned liquid.
Theoretical foundations for on-ground tests of LISA PathFinder thermal diagnostics
Density, specific heat and thermal conductivity of aluminium and polyurethane.
Theoretical foundations for on-ground tests of LISA PathFinder thermal diagnostics
Amplitude damping factor on the interface between aluminium and polyurethane at 1 mHz, for various sizes of the insulating device.
Theoretical foundations for on-ground tests of LISA PathFinder thermal diagnostics
Because the polyurethane provides a very stable insulation, we can neglect the lateral flux, hence only a unidimensional heat flow needs to be considered.
Theoretical foundations for on-ground tests of LISA PathFinder thermal diagnostics
Rwire its transverse radius, and ℓwire its length inside the polyurethane layer.
Theoretical foundations for on-ground tests of LISA PathFinder thermal diagnostics
Hwire (ω )| ≃ and where the approximation has been made that the temperature fluctuations at the inner end of the wire are much smaller than those at the outer end, due to the presence of the polyurethane layer.
Theoretical foundations for on-ground tests of LISA PathFinder thermal diagnostics
The length of the wires has been taken to be 25 cm, but this does not necessarily mean we need a2 = 38 cm (assuming the radius of the aluminum core is a1 = 13 cm), because the wires can be partly wound inside the polyurethane layer to further protect the system against leakage.
Theoretical foundations for on-ground tests of LISA PathFinder thermal diagnostics
The choice of materials is flexible, so aluminium and polyurethane, which are easily available in the market, has been adopted.
Theoretical foundations for on-ground tests of LISA PathFinder thermal diagnostics
Our analysis determines that a central aluminium core of 13 cm of radius, surrounded by a concentric layer of polyurethane 15–20 cm thick, comfortably provides the needed thermal screening which guarantees a meaningful test of the sensors’ performance.
Theoretical foundations for on-ground tests of LISA PathFinder thermal diagnostics
Meeker and Escobar (1998, Section 19.3) reanalyzed ALT data from a special type of mylar-polyurethane insulation used in highperformance electromagnets.
A Review of Accelerated Test Models
These defects have amplitudes of the order of 0.1 mm on the polyurethane spincast surface of our container.
Optical Tests of a 2.5-m diameter Liquid Mirror: Behavior under External Perturbations and Scattered Light Measurements
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