Polyurethanes are comparable in hardness to certain alkyds but generally form a tougher film.

Polyurethanes manufactures MDI-based polyurethanes used in an extensive range of applications and market sectors, providing key benefits of energy efficiency, comfort and well-being.

Polyurethanes also provide comfort and well-being in automotive seating, furniture, bedding and footwear.

* Polyurethanes: insulting foams, mattresses, coatings, adhesives, car-parts, print rollers, shoe soles, flooring, synthetic fibers, etc.

Polyurethanes have variable curing times, and the presence of free isocyanates in foams vary accordingly.

The trade group represents US chemical companies as well as the plastics and chlorine industries, formerly known as the American Plastics Council, the Center for the Polyurethanes Industry and the Chlorine Chemistry Council.

Polyurethanes contain multiple carbamate groups as part of their structure.

Polyurethanes is providing MDI-based polyurethane solutions across a variety of market sectors.

The men who speculate on these institutions have, for the most part, come to at least one common conclusion: that many of the great enterprises and associations around which our democracy is formed are in themselves autocratic in nature, and possessed of power which can be used to frustrate the citizen who is trying to assert his individuality in the modern world ''.

Then, with staring eyes and lips drawn thin, Miriam said to the young woman, `` You are ugly -- uglier than you used to be, and you were always very ugly.

She used to tell me, `` When I stand there and look at the flag blowing this way and that way, I have the wonderful, safe feeling that Americans are protected no matter which way the wind blows ''.

The decision maker who acts for the community as a whole must decide whether the objectives pursued and the methods used are appropriate to public policy regarding cultural groups.

his broad but little used investigative powers are confirmed.

When different colors are used, she is just as likely to color trees purple, hair green, etc..

One cannot help wondering whether Molotov and the rest of the `` anti-party group '' are not being used as China's whipping-boys by Khrushchev and his faithful followers.

Proceeds realized from these pageants are used by the Jaycees to help support their various youth, health, welfare and community betterment activities throughout the state.

Since conventional methods are insensitive at the low frequencies of these molecular transitions, the paramagnetic resonance method is being used instead.

The funds recouped by reductions in item 12 above are used: first, to increase the unadjusted allotments to the specified minimum in those States where the unadjusted allotment is less than the minimum allotment ( item 13 above ) ; ;

Solid concrete blocks, relatively heavy and dense, are used for this shelter.

If they are used, the walls and roof should be 10 inches thick to give the same protection as the 8-inch solid concrete blocks.

It is thick, much like an egg plant's skin, so that poison sprays, if they are used, present no hazard to the consumer.

Such locks are nearly always used where the switch points `` face '' oncoming traffic.

Derails -- mechanical track devices that actually guide the wheels off the rails if a train passes a `` stop '' signal -- are used in many instances.

However, some formulas are used more than others.

The compression ratio arrived at with the formula will be the same regardless of whether cubic inches or cubic centimeters are used.

The only way to determine the final combustion chamber volume when such pistons are used is by measuring it with liquid while the cylinder head is bolted to the cylinder block and the piston is in top dead center position.

Photos of Conference Rooms and the General Assembly Hall can be made when these rooms are not being used for meetings.

Besides flathead bronze screws, silicon bronze Stronghold nails ( made by Independent Nail & Packing Co., Bridgewater, Mass. ) are used extensively in assembly and Weldwood resorcinol glue is used in all the joints.

After the frames and transom are set up on the jig and temporarily braced, a piece of three-inch-wide mahogany ( only widths will be given since the 13/16-inch thickness is used throughout ) is butted between frames one and two below the line of the keelson.

One-inch, No. 10 screws are used in both cases.

Glue and 1-1/2-inch, No. 10 screws are used.

Four pieces are used.

Water-soluble gums are used in foods and drugs and in the manufacture of pulp and paper as thickeners, stabilizers, or dispersing agents.

Artillery may also refer to a system of applied scientific research relating to the design, manufacture and employment of artillery weapon systems although, in general, the terms ballistics and ordnance are more commonly employed in this sense.

Conversely the use of true brass seems to have declined in Western Europe during this period in favour of gunmetals and other mixed alloys but by the end of the first Millennium AD brass artefacts are found in Scandinavian graves in Scotland, brass was being used in the manufacture of coins in Northumbria and there is archaeological and historical evidence for the production of brass in Germany and The Low Countries areas rich in calamine ore which would remain important centres of brass making throughout the medieval period, especially Dinant – brass objects are still collectively known as dinanterie in French.

Remaining uses of bromine compounds are in well-drilling fluids, as an intermediate in manufacture of organic chemicals, and in film photography.

Bronze has been used in the manufacture of various types of medals for centuries, and are known in contemporary times for being awarded to the second-runner up in sporting competitions and other events.

Genetically altered mammalian cells, such as Chinese Hamster Ovary cells ( CHO ), are also used to manufacture certain pharmaceuticals.

Some examples are in improving crop technology ( not a medical application per se ; see BioSystems Engineering ), the manufacture of synthetic human insulin through the use of modified bacteria, the manufacture of erythropoietin in hamster ovary cells, and the production of new types of experimental mice such as the oncomouse ( cancer mouse ) for research.

The type and quality of the wood, and the skill of the craftsman are critical factors in the manufacture of a good quality bokken.

Vitamins are materials required for normal metabolism but which the body cannot manufacture itself and which must therefore come from soil.

Similarly, relatively little energy is used in producing and combining the raw materials ( although large amounts of CO < sub > 2 </ sub > are produced by the chemical reactions in cement manufacture ).

The work of chemists is often related to the work of chemical engineers, which are primarily concerned with the proper design, construction and evaluation of the most cost-effective large-scale chemical plants and work closely with industrial chemists on the development of new processes and methods for the commercial-scale manufacture of chemicals and related products.

There has been considerable controversy in the United States and elsewhere about the lack of regulations in the manufacture of such jewelry — these range from human rights issues surrounding the treatment of labor, to the use of manufacturing processes in which small, but potentially harmful, amounts of toxic metals are added during production.

Chromates are often used to manufacture, amongst other things, leather products, paints, cement, mortar and anti-corrosives.

Carbonates are widely used in industry, e. g. in iron smelting, as a raw material for Portland cement and lime manufacture, in the composition of ceramic glazes, and more.

Estimates are that 90 % of all commercially produced chemical products involve catalysts at some stage in the process of their manufacture.

Stresses generated during manufacture of the body to a specific configuration are also excluded when considering stresses in a body.

However, such factories are unlikely to achieve " full closure " until the cost and flexibility of automated machinery comes close to that of human labour and the manufacture of spare parts and other components locally becomes more economical than transporting them from elsewhere.

Key criteria are the composition of the clay and the temper used in the manufacture of the article under study: temper is a material added to the clay during the initial production stage, and it is used to aid the subsequent drying process.

Since these stock additions retain the short pistol barrel ( as short as 100 mm ( 4 inches )) they are highly restricted under the NFA unless the shoulder stocks are of original manufacture for the gun and the gun has been " delisted " as outlined in links 1 & 2 in the paragraph above, as is the case with so-equipped " Broomhandle " Mausers and Lugers.

Equipment to reduce dust emissions during quarrying and manufacture of cement is widely used, and equipment to trap and separate exhaust gases are coming into increased use.

The factory then went on to produce ammonium nitrate emulsion-based explosives that are far safer to manufacture and to handle.

Dynamite has been mostly phased out in favor of water gel explosives, which are cheaper to manufacture, and in many ways are safer to handle.