37859-57-7 Usage
Background
Different sources of media describe the Background of 37859-57-7 differently. You can refer to the following data:
1. There has been a long felt need in the industry for tetrafunctional oximino silanes which do not require organic solvents or mixing with trifunctional oximino silanes. We have surprisingly discovered that the novel tetrakis oximino silane, e.g. tetrakis-(methyl isobutyl ketoximino) silane is liquid and thus do not suffer with the same problems as their solid counterparts. These new silanes offer the ability to employ solvent-free formulations, if not significantly decrease solvent content in the composition. In addition, there is added flexibility and simplification when formulating room temperature moisture-curable silicone compositions. Because the new silanes are liquid tetrafunctional oximino silanes, one can add more of these silanes to increase the cure rate of the composition. The amount of other tetrafunctional oximino silanes which can be used in this type of silicone composition is limited by their solubility in the solvent.
In addition to the novel liquid tetrafunctional oximino silanes, we have also found that when these novel oximino silanes (tetra-oximino, tris-oximino or bis-oximino) are formulated with hydroxyl terminated polydimethylsiloxane (HTPDMS), an optically clear silicone rubber results.
2. There has been a long felt need in the industry for tetrafunctional oximino silanes which do not require organic solvents or mixing with trifunctional oximino silanes. As the novel tetrakis oximino silane, e.g. tetrakis-(methyl isobutyl ketoximino) silane is liquid and thus do not suffer with the same problems as their solid counterparts. These new silanes offer the ability to employ solvent-free formulations, if not significantly decrease solvent content in the composition. In addition, there is added flexibility and simplification when formulating room temperature moisture-curable silicone compositions. Because the new silanes are liquid tetrafunctional oximino silanes, one can add more of these silanes to increase the cure rate of the composition. The amount of other tetrafunctional oximino silanes which can be used in this type of silicone composition is limited by their solubility in the solvent.
In addition to the novel liquid tetrafunctional oximino silanes, it is found that when these novel oximino silanes (tetra-oximino, tris-oximino or bis-oximino) are formulated with hydroxyl terminated polydimethylsiloxane (HTPDMS), an optically clear silicone rubber results.
Uses
Methyltris(methylisobutylketoxime)silane is used as a novel neutal curing agent in silicone sealant formulations.
Chemical Properties
Colorless or yellowish transparent liquid
Check Digit Verification of cas no
The CAS Registry Mumber 37859-57-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,7,8,5 and 9 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 37859-57:
(7*3)+(6*7)+(5*8)+(4*5)+(3*9)+(2*5)+(1*7)=167
167 % 10 = 7
So 37859-57-7 is a valid CAS Registry Number.
37859-57-7Relevant articles and documents
Preparation method of methyl tri(methyl isobutyl ketoxime) silane
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Paragraph 0007, (2017/05/18)
The invention discloses a preparation method of methyl tri(methyl isobutyl ketoxime) silane used for organic silicon rubber (RTV) cross-linking agents. The preparation method comprises following steps: methyl isobutyl ketoxime and urea are dissolved in an organic solvent; methyltrichlorosilane is added dropwise; after adding of methyltrichlorosilane, temperature is increased to 50 to 55 DEG C, and constant temperature reaction is carried out in the temperature range; after constant temperature reaction, an obtained mixture is allowed to stand for laying, an obtained lower layer solution is subjected to neutralization, andan obtained upper layer clear solution is subjected to neutralization and distillation so as to remove the organic solvent and ammonia, and obtain a finished product. The preparation method is capable of solving problems of organic silicon rubber cross-linking agents such as metal corrosion, adhesive performance, stability performance, cracking, transparency, and toxicity.
