Silicone rubber material for auto parts IOTA 231-20*

N2 - NO-releasing silicone rubber (SR) films were prepared using two approaches. The films can be synthesized using either diamino crosslinking agents (DACA-NO) and NO-releasing fumed silica (SilNO). Platelet adhesion studies were performed to determine if NO release truly improves the biocompatibility of the SR-based polymers. A substantial decrease in both the number of adhered platelets and the extent of platelet activation was observed for the NO-releasing polymers.

Silicone rubber material for office automation IOTA151-30, 40, 50

T1 - Synthesis of nitric oxide releasing silicone rubbers for biomedical applications

AB Liquid Silicone rubber foam IOTA-663

Silicones are examples of what chemists call polymers. Basically, a polymer is a large molecule made up of many smaller molecules that are linked together. At the molecular level, silicones consist of long, repeating chains of atoms. In this molecular characteristic, sili-cones resemble plastics and rubber.
Silicone molecules have a chain composed of alternate silicon and oxygen atoms. Each silicon atom bears two organic groups as sub-stituents, while the oxygen atoms serve to link the silicon atoms into a chain. The silicon-oxygen backbone of the silicones is responsible for their unique and useful properties, such as the ability of a silicone oil to remain liquid over an extremely broad temperature range and to resist oxidative and thermal breakdown at high temperatures.
A fundamental scientific consideration with silicone, as with any polymer, is to obtain the desired physical and chemical properties in a product by closely controlling its chemical structure and molecular weight. Oily silicones with thousands of alternating silicon and oxygen atoms have been prepared. The average length of the molecular chain determines the flow characteristics (viscosity) of the oil. In samples with very long chains, rubber-like elasticity can be achieved by cross-linking the silicone chains in a controlled manner and adding a filler such as silica. High degrees of cross-linking could produce a hard, intractable material instead of rubber.
The action of water on the compounds produced from Rochow’s direct synthesis is a rapid method of obtaining silicones, but does not provide much control of the molecular weight. Further development work at GE and at the Dow-Corning company showed that the best procedure for controlled formation of silicone polymers involved treating the crude silicones with acid to produce a mixture

High transparent liquid silicone rubber LSR IOTA 6300

We offer a variety of types of synthetic rubber including: Neoprene, Nitrile, Silicone, EPDM, SBR, and thermoplastic materials like Santoprene. Each synthetic rubber offers a unique characteristic and has been developed by industry for specific types of use. For example, silicones, as well as other synthetic rubber products, excel in temperature extremes, being able to operate normally from a range of -100° C to +300° C. Synthetic rubber material offers superior properties such as elongation, tear strength, compression set, fire resistance and, in some cases, tensile strength that are superior to that of natural rubber products.

silicone rubber material for Flame retardant high temperature resistant IOTA 26E9-40,50,60
Silicone rubber material for swimming class equipment with IOTA351-20, 30, 40, 856-20, 221-20

Silicone rubber approved for use ..

Eugene George Rochow was born in 1909 and grew up in the rural New Jersey town of Maplewood. There his father, who worked in the tanning industry, and his big brother maintained a small attic laboratory. They experimented with electricity, radio—Eugene put together his own crystal set in an oatmeal box—and chemistry.
Rochow followed his brother to Cornell University in 1927. The Great Depression began during his junior year, and although he had to take jobs as lecture assistant to get by, he managed to earn his bachelor’s degree in chemistry in 1931 and his doctorate in 1935. Luck came his way in the extremely tight job market: General Electric (GE) hired him for his expertise in inorganic chemistry.
In 1938 the automobile industry, among other manufacturers, had a growing need for a high-temperature-resistant insulators. Scientists at Corning were convinced that silicone would have the best properties for the purpose, but they could not find a way to synthesize it cheaply and in large volume. When word about their ideas got back to Rochow at GE, he reasoned that a flexible silicone able to withstand temperatures of 200 to 300 degrees Celsius could be made by bonding silicone to carbon. His research succeeded in producing methyl silicone in 1939, and he devised a way to make it cheaply in 1941. It was the first commercially practical silicone. His process is still used.
After World War II GE asked him to work on an effort to make aircraft carriers nuclear powered. However, Rochow was a Quaker and pacifist, and he refused. Instead, he moved to Harvard University as a chemistry professor in 1948 and remained there until his retirement in 1970. As the founder of a new branch of industrial chemistry, he received most of the discipline’s awards and medals, including the Perkin Award, and honorary doctorates.
from which high yields of an intermediate called “D4″ could be obtained by distillation. The intermediate D4 could be polymerized in a controlled manner by use of acidic or basic catalysts. Wilton I. Patnode of GE and James F. Hyde of Dow-Corning made important advances in this area. Hyde’s discovery of the use of traces of potassium hydroxide as a polymerization catalyst for D4 made possible the manufacture of silicone rubber, which is the most commercially valuable of all the silicones.

Silicone rubber material for wire, tubular product IOTA4366-30, 40, 50, 60, 70, 80

Silicone Rubber - Wacker Chemie AG

AB - NO-releasing silicone rubber (SR) films were prepared using two approaches. The films can be synthesized using either diamino crosslinking agents (DACA-NO) and NO-releasing fumed silica (SilNO). Platelet adhesion studies were performed to determine if NO release truly improves the biocompatibility of the SR-based polymers. A substantial decrease in both the number of adhered platelets and the extent of platelet activation was observed for the NO-releasing polymers.

Silicone rubber material for industrial products IOTA9241-20*,30*,40*,50*,60*

synthetic - Dizionario inglese-italiano WordReference

N2 - NO-releasing silicone rubber (SR) films were prepared using two approaches. The films can be synthesized using either diamino crosslinking agents (DACA-NO) and NO-releasing fumed silica (SilNO). Platelet adhesion studies were performed to determine if NO release truly improves the biocompatibility of the SR-based polymers. A substantial decrease in both the number of adhered platelets and the extent of platelet activation was observed for the NO-releasing polymers.