Abstract: A novel organosilane coupling agent is disclosed and its use as an adhesion promoter in mineral-filled unsaturated polymer systems is described. Additionally, use of the organosilane as a primer for various substrates is presented. The coupling agent comprises the reaction product of an isocyanatoalkyl ester of acrylic or methacrylic acid with an aminoorganosilane. The organosilane so formed links the acryloxyalkyl or methacryloxyalkyl functionality to an alkylene, or aminoalkylene, group on the silicon atom through a urea group. Use of the organosilane as a coupling agent in a mineral-filled unsaturated polymer results in superior resistance to moisture, particularly when the polymer is selected from the group of corrosion resistant unsaturated polyesters.

Abstract: Organosilicon compounds containing SiC-bonded biuret groups are prepared by (I) adding a silane containing 1 or 2 silicon atoms per molecule and an SiC-bonded organic radical having at least one basic ##STR1## group and at least one SiOC-bonded aliphatic radical per molecule to a monoisocyanate or a diisocycanate at a temperature up to 125.degree. C. and (II) maintaining the temperature at 110.degree. C. to 125.degree. C. for at least two minutes. In an alternate procedure the silane and mono- or diisocyanate may be heated to a temperature in the range of from 110.degree. C. up to 200.degree. C. for at least two minutes, after or while adding additional monoisocyanate or diisocyanate.The resultant silicon compounds are used in the preparation of polyurethanes and as additives to lacquers.

Abstract: There is provided a corrosion inhibiting alkoxy silane characterized by an alkyleneamino group attached to silicon through a Si--C linkage, a carbonyl or thiocarbonyl group attached to an amine group and a terminal group which may be saturated or unsaturated aliphatic or cycloaliphatic group containing 6 to 20 carbon atoms, a saturated or unsaturated aminoaliphatic or amino cycloaliphatic group containing 6-20 carbon atoms; NHNH.sub.2 ; NH(CH.sub.2).sub.n N(R).sub.2 ; or a ##STR1## group where R.sup.2 is a saturated or unsaturated alkyl or haloalkyl group containing 3 to 20 carbon atoms. The invention also provides a method of inhibiting corrosion of metal surfaces by applying a coating containing or consisting of a novel silane as above described.

Abstract: Novel colorless siloxane monomers containing both an aromatic ring and vinyl functionality are employed as a monomer for preparing copolymers that are ophthalmically useful. The monomer has good oxygen permeability, allows preparation of copolymers that have good machineability, and is easily wettable. Moreover, because of its compatability with other copolymers it can be useful to make a wide variety of types of lenses including hard and soft, and ocular implants as well.

Abstract: The invention is directed to N,N' and N,N',N'-substituted silylureas and a process for their production in which in a single step process there are reacted a halogenoalkylsilane or a halogenbenzylsilane with a primary or secondary amine and an alkali cyanate in equimolar amounts.

Abstract: There is provided a novel class of alkoxy silanes useful as corrosion inhibitors for metal surfaces and characterized by an alkylene group attached to silicon through a Si--C linkage. These compounds also contain nitrogen as an amine or an imine group in a linear or cyclic structure. Sulfur and/or a carbonyl or thiocarbonyl group may also be present. The invention also provides a method of inhibiting corrosion of metal surfaces by applying a coating containing or consisting of a novel silane as above described.

Abstract: Organosilicon compounds containing SiC-bonded biuret groups are prepared by (I) adding a silane containing 1 or 2 silicon atoms per molecule and an SiC-bonded organic radical having at least one basic ##STR1## group and at least one SiOC-bonded aliphatic radical per molecule to a monoisocyanate or a diisocyanate at a temperature up to 125.degree. C. and (II) maintaining the temperature at 110.degree. C. to 125.degree. C. for at least two minutes. In an alternate procedure the silane and mono- or diisocyanate may be heated to a temperature in the range of from 110.degree. C. up to 200.degree. C. for at least two minutes, after or while adding additional monoisocyanate or diisocyanate.The resultant silicon compounds are used in the preparation of polyurethanes and as additives to lacquers.

Abstract: New acrylofunctional silicones and a method for their synthesis are disclosed. The acrylofunctional silicones are the product of reacting aminoalkyl or diaminoalkyl silicones with isocyanatoacrylates. The acrylofunctional silicones are useful coating materials, and can be cured by ultraviolet radiation.

Abstract: The invention disclosed in this application is the use of novel silanes in curable coatings to allow tinting or dyeing of the coatings after they are cured on certain substrates.An example of one such useful silane is ##STR1## The silanes and the curable coatings are also useful as antistat and antifog coatings.

Abstract: Aminofunctional siloxanes, such as siloxanes bearing ethylenediamine-substituted hydrocarbon radicals, have their amine functionality fully modified by reaction with a monocarboxylic acid anhydride. The modifying functionality includes complete diamide or amide-amine salt formation. The amide-amine salt functionality can further be converted to a mixture of diamide and amide-amine functionality, if desired. The modified aminofunctional siloxanes have utility as components in hair care compositions, textile treating compositions and moldable polymeric compositions.

Abstract: The invention disclosed in this application is the use of novel silanes in curable coatings to allow tinting or dyeing of the coatings after they are cured on certain substrates.An example of one such useful silane is ##STR1## The silanes and the curable coatings are also useful as antistat and antifog coatings.

Abstract: Silicon based liquid crystal compounds produced by the reaction of an isocyanatosilane with a Schiff base, aromatic ester, azo compound or cholesteryl compound. The liquid crystals are useful in those applications in which liquid crystals are currently used and they also have the capability of being firmly chemically bonded to certain substrates, such as glass, thus avoiding the need for hermetic sealing.

Abstract: Compounds of the formula I ##STR1## wherein R.sub.1 is fluorine or chlorine and R.sub.2 is hydrogen, fluorine or chlorine having valuable insecticidal properties.

Abstract: The invention provides organosilicon compounds of the formula: ##STR1## in which: n is 1, 2 or 3;each R, which may be identical or different, is a monovalent organic group which contains a carbon-carbon double bond and from 2 to 10 carbon atoms;each R.sub.1, which may be identical or different, is a straight or branched alkyl radical optionally substituted by one or more halogen atoms or cyano groups; an aryl radical or an alkylaryl radical optionally substituted by one or more halogen atoms;R.sub.2 is a straight or branched divalent alkylene or alkylidene radical possessing up to 4 carbon atoms;X is a divalent radical consisting of, or containing, at least one hetero-atom selected from oxygen, sulphur and nitrogen atoms, the radical being attached to the radical R.sub.2 via a said hetero-atom;G is an organic radical of valency (m+1) possessing from 1 to 30 carbon atoms;m is 1, 2 or 3;and each Y, which may be identical or different, is a functional group selected from: --NO.sub.