Midland, MI, United States
Midland, MI, United States

Dow Corning is an American multinational corporation headquartered in Midland, Michigan, USA. Dow Corning specializes in silicone and silicon-based technology, offering more than 7,000 products and services. Dow Corning is an equally owned joint venture of Dow Chemical and Corning. On November 13, 2014, Dow Chemical's CEO Andrew N. Liveris revealed in a presentation to investors that Corning Incorporated intended to exit the joint venture of 71 years, citing other priorities. It is speculated that Dow could be taking over the Corning's stake at Dow Corning. Liveris declined to disclose details. Wikipedia.


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A hot melt silicone that is non-flowable at 25C and that has a melt viscosity at 100C of 5,000 Pas or less, the hot melt silicone being formed by subjecting (A) an alkenyl group-containing organopolysiloxane in which 10 mol% or greater of all of silicon atom-bonded organic groups is a phenyl group, and (B) an organopolysiloxane having at least two silicon atom-bonded hydrogen atoms in a molecule to hydrosilylation reaction in the presence of (C) a hydrosilylation reaction catalyst; and a curable hot melt composition comprising: (I) the hot melt silicone; (II) an organopolysiloxane which has at least two silicon atom-bonded hydrogen atoms in a molecule and in which the amount of silicon atom-bonded hydrogen atom is 0.5 mass% or greater; and (III) a hydrosilylation reaction catalyst. The hot melt silicone is non-flowable at 25C, has a low surface stickiness, and easily melts by heating. Furthermore, this curable hot melt composition has both hot melt properties and curability.


The invention relates to thermoplastic polymer compositions containing a copolymer of a polysiloxane and an olefin polymer as a friction reducing additive in the thermoplastic polymer composition. The invention provides a polymer composition comprising a thermoplastic polymer (A) selected from a polyacetal and a polyolefin, and a copolymer (B) of a polysiloxane (B1) and an olefin polymer (B2), characterised in that the copolymer (B) is a branched block copolymer and is free of any siloxane homopolymer.


Patent
Dow Corning | Date: 2017-04-05

Disclosed is a compound of formula (I): (R1 R2N)SinH2n+1 (I), wherein subscript n is an integer from 3 to 9; and each R1 and R2 independently is (C1 -C6)alkyl, (C3-C6)cycloalkyl, (C2-C6)alkenyl, (C2-C6)alkynyl, or phenyl; or R1 is H and R2 is (C1 -C6)alkyl, (C3-C6)cycloalkyl, (C2-C6)alkenyl, (C2-C6)alkynyl, or phenyl; or R1 and R2 are bonded together to be -R1a_R2a_ wherein -R1a-R2a - is (C2-C5)alkylene. Also disclosed are a method of making, intermediates useful therein, method of using, and composition comprising the compound of formula (I).


A method of forming an SiC crystal including placing in an insulated graphite container a seed crystal of SiC, and supporting the seed crystal on a shelf, wherein cushion rings contact the seed crystal on a periphery of top and bottom surfaces of the seed crystal, and where the graphite container does not contact a side surface of the seed crystal; placing a source of Si and C atoms in the insulated graphite container, where the source of Si and C atoms is for transport to the seed crystal to grow the SiC crystal; placing the graphite container in a furnace; heating the furnace; evacuating the furnace; filling the furnace with an inert gas; and maintaining the furnace to support crystal growth to thereby form the SiC crystal.


Patent
Dow Corning | Date: 2017-01-31

A method of forming an SiC crystal, the method including: placing a SiC seed in a growth vessel, heating the growth vessel, and evacuating the growth vessel, wherein the seed is levitated as a result of a temperature and pressure gradient, and gas flows from a growth face of the seed, around the edge of the seed, and into a volume behind the seed, which is pumped by a vacuum system.


Patent
Dow Corning | Date: 2017-02-01

Various embodiments disclosed related to modified elastomer surfaces and methods of making and using the same. In various embodiments, the present invention provides a method of modifying the surface of an elastomer. The method can include contacting a polymerizable composition and at least part of a surface of an elastomer. The polymerizable composition can include a free-radical polymerizable monomers, an organoborane-organonitrogen free-radical initiator, and an amine-reactive compound. The method can include at least partially polymerizing the polymerizable composition, to provide a polymerization product of the polymerizable composition on the surface of the elastomer.


Patent
Dow Corning | Date: 2017-02-22

Disclosed herein are compositions, preparation methods, and use of thermally conductive materials comprising silicone composition curable by hydrosilylation, thermally conductive fillers, and phthalocyanine. The novel composition retains its desirable pliability after cure even when kept at an elevated temperature for an extended period.


Patent
Hok Product Design LLC and Dow Corning | Date: 2017-06-07

In a method of supplying an element for covering a non-vision area in a curtain wall (600) on an architectural structure, a plurality of shadow boxes (100) is prefabricated at a location remote from both a unitized curtain wall assembly shop and the architectural structure. The shadow boxes (100) are prefabricated by sealing an interior spacer (130) between a vision glass panel (110) and a back structure (120).


A method for producing silicon carbide substrates fit for epitaxial growth in a standard epitaxial chamber normally used for silicon wafers processing. Strict limitations are placed on any substrate that is to be processed in a chamber normally used for silicon substrates, so as to avoid contamination of the silicon wafers. To take full advantage of standard silicon processing equipment, the SiC substrates are of diameter of at least 150mm. For proper growth of the SiC boule, the growth crucible is made to have interior volume that is six to twelve times the final growth volume of the boule. Also, the interior volume of the crucible is made to have height to width ratio of 0.8 to 4.0. Strict limits are placed on contamination, particles, and defects in each substrate.


A curable silicone composition comprises: (A) an organopolysiloxane represented by a specific average unit formula; (B) an organopolysiloxane represented by a specific average unit formula; (C) an organohydrogenpolysiloxane represented by a specific average composition formula; and (D) a hydrosilylation catalyst; and a curable hot-melt silicone that is obtained by subjecting this composition to a hydrosilylation reaction to a degree that does not form a cured product, that is non-flowable at 25C, and that has a melt viscosity at 100C of 5000 Pas or less. This curable silicone composition provides a cured product having excellent heat resistance and light resistance after being cured. This curable hot-melt silicone is non-flowable at room temperature, has low surface stickiness, and is readily melted by heating.

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