Structure of Urethane
Find information on thousands of medical conditions and prescription drugs.

Urethane

Urethane 1. A polymer containing a urethane linkage. 2. Any organic chemical compound contaning a urethane functional group (or linkage). 3. The specific compound (NH2*COOC2H5). This ethyl ester is a white crystalline substance produced by the action of ammonia on ethyl carbonate or by heating urea nitrate and ethyl alcohol. It is used as a hypnotic, antipyretic, and antispasmodic. more...

 Home
Diseases
Medicines
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
Ubidecarenone
Ultram
Unasyn
Unipen
Uniphyl
Unisom
Urethane
Urofollitropin
Urokinase
Uroxatral
Ursodeoxycholic acid
V
W
X
Y
Z

Generally, a urethane is an ester of a carbamic acid (RNHCOOQ, where R and Q represent many different organic compounds). Many can be created by an isocyanate reaction with a hydroxyl group of an alcohol (or other hydroxy containing compound) according to the following formula:

Although this reaction had been known for some decades, it was not until 1937 that Otto Bayer discovered how to make the very useful polyurethane plastics out of polyisocyanate and polyol (a molecule with multiple hydroxyl groups), (see Polyurethane). There are many other more specialized ways to make urethanes.

Urethane technology was brought to America in 1953 by Jean-Pierre Abbat and Dr. Fritz Hartmann.

Urethanes are used in pharmaceuticals, (bio)chemical analysis and plastics.

Urethane is also widely used in skateboard and in-line skate wheel production, effectively replacing the clay wheel used before that.

Read more at Wikipedia.org
• [List your site here Free!]

Water-Based Urethane Coating resists yellowing
From Product News Network, 6/8/05

HYDROGLOSS(TM) Single-Component Urethane Coating is formulated to provide high-gloss finish with interior and exterior color and gloss retention. It is ready to brush, roll, or spray without adding and mixing additional components. With VOC content of 250 g/l, low odor formulation is recommended for water tanks, power plants, amusement parks, bridge and highway construction, and for corporate logos and petrochemical plants.

********************

Easy Application and Outstanding Durability in a One-Component Water-Based Polyester Urethane

(CLEVELAND - May 31, 2005) New HYDROGLOSS(TM) Single Component Waterbased Urethane from Sherwin-Williams delivers VOC compliance and performance comparable to a two-component waterbased urethane, but with the ease of application available only in a one-component coating.

Formulated to provide a high gloss finish with outstanding interior and exterior color and gloss retention, HYDROGLOSS Waterbased Urethane also resists yellowing. It ensures an outstanding appearance year after year even in harsh industrial environments.

Because it is a single component coating, HYDROGLOSS Waterbased Urethane is ready to brush, roll or spray without adding and mixing additional components. Its waterbased formulation ensures low odor and easy clean-up, and a safer-to- use, more environmentally-friendly formula than its solvent-based counterparts.

HYDROGLOSS Waterbased Urethane also is more forgiving than other coatings when exposed to early moisture while drying. It is recommended for use on water tanks, in power plants, amusement parks, bridge and highway construction, and for corporate logos and petrochemical plants as well as in general industrial applications.

HYDROGLOSS Waterbased Urethane may be tinted with Sherwin-Williams proprietary EnviroToner(TM) colorants to a wide variety of colors. With VOC content of 250 g/l, HYDROGLOSS Waterbased Urethane meets all current VOC regulations.

HYDROGLOSS Waterbased Urethane is one of many Sherwin-Williams proprietary technology products for use in industrial and commercial markets that feature environmental and user-friendly, low VOC advantages for facility owners, managers and applicators.

Sherwin-Williams Industrial and Marine Coatings group serves North America with a broad line of high-performance coatings, comprehensive technical service, and the industry's largest distribution network. Relying on more than 136 years of experience in formulating industrial coatings, the group provides cost-effective solutions for applications where extreme corrosion, abrasion and chemical attack are present. Visit Sherwin-Williams on the Internet at HYPERLINK "http://www.sherwin-williams.com/im".

COPYRIGHT 2005 ThomasNet, Incorporated
COPYRIGHT 2005 Gale Group

Return to Urethane
Home Contact Resources Exchange Links ebay