Osi Specialties, Inc.

Osi Specialities Inc.

Crompton Gmbh

Ck Witco Corporation

Ming J Chen

Frederick D Osterholtz

Antonio Chaves

Eric Raymond Pohl

Phil E Ramadatt

The present invention provides stable epoxy silane emulsions and methods for the preparation of such compositions comprising (I) a water insoluble or slightly soluble epoxysilane; (II) an emulsifier; (III) water; and (IV) a water dispersible polymer containing a functional group with an active hydrogen. Also provided are two part systems such that an epoxysilane emulsion comprising components (I)-(III) are combined and the component (IV) may be added upon use of components (I)-(III). Moreover, additional components (V), such as catalysts and pH buffers, may be added. Such compositions may be used for, among other things, coatings, adhesives and sealants.

Compositions of epoxysilane emulsion additives in waterbased reactive polymer dispersions and methods of preparation

A method of preparing a coating or a sealant wherein a class of epoxysilanes; optionally, an emulsifier; water; a polymer containing a functional group with an active hydrogen; and a curing catalyst are mixed together.

Compositions of epoxysilane and reactive polymer with cure catalyst and methods of preparation

The present invention provides stable epoxy silane solutions and emulsions and methods for the preparation of stable epoxy-silane solutions and emulsions comprising: (I) a water insoluble or slightly soluble epoxysilane; (II) optionally, an emulsifier; (III) water; (IV) a water dispersible polymer containing a functional group with an active hydrogen; and (V) a catalyst. Also provided are two part systems such that an epoxysilane solution or emulsion comprising components (I)-(III) are combined and the components (IV) and (V) may be added upon use of components (I) to (III). Moreover, additional components, such as pH buffers may be added. Said compositions may be used for, among other things, coatings, adhesives and sealants. The water epoxy functional silane for use herein are of the general structure R.sup.1.sub.a R.sup.2.sub.b Si(OR.sup.3).sub.4-a-b where R.sup.1 is an epoxy substituted alkyl or aralkyl group, where the alkyl may have from four to thirty carbon atoms, R.sup.3 is an alkyl or alkoxy-substituted alkyl, aryl or aralkyl group having from one to ten carbon atoms, R.sup.2 is an alkyl group or alkoxy substituted alkyl, aryl or aralkyl group having from one to ten carbon atoms, a is one to three, and b is zero to two, with the proviso that a+b is 1, 2, or 3. R.sup.1, R.sup.2, and R.sup.3 group may be cyclic, branched or linear.

Compositions of epoxysilane and reactive polymer with cure catalyst and

Curable compositions comprising stable, water dispersible, curable polymers containing sterically hindered alkoxylated silane groups and acid groups blocked by fugitive bases at 0.1 to 75 weight percent of the total composition and water at 99.9 to 25 weight percent of the total composition are taught herein, as well as methods for the use and manufacture thereof. Additional components, such as emulsifiers, buffers and thickeners are also taught. These compositions are useful as adhesives, sealants and paints. The compositions have improved properties including solvent resistance, adhesion, hardness, abrasion resistance and mar resistance.

Aqueous silylated polymer curable compositions

Curable composition comprising a stable, water dispersible, curable polymer containing a sterically hindered alkoxylated silane group at 0.1 to 75 weight percent of the total composition; a water dispersible or water soluble, hydrolytically stable organotin catalyst, at 0.1 to 10 weight percent of the total composition; and water at 99.8 to 24.9 weight percent of the total composition are taught herein. These compositions are useful as adhesives, sealants and paints. The compositions have improved properties including solvent resistance, adhesion, hardness, abrasion resistance and mar resistance. Particular catalysts for use herein include mercaptoalcohol, mercaptide and sulfide forms of diorganotins having either a Sn--S or Sn.dbd.S bond, and include dibutyltin dimercaptide and dibutyltin bis(1-thioglycerol).

Aqueous silylated polymer curable compositions with tin catalysts

The present invention provides stable epoxy silane emulsions and methods for the preparation of a stable epoxy-silane emulsions comprising: (I) a water insoluble or slightly soluble epoxysilane; (II) an emulsifier; (III) water; and (IV) a water dispersible polymer containing a functional group with an active hydrogen. Also provided are two part systems such that an epoxysilane emulsion comprising components (I)-(III) are combined and the component (IV) may be added upon use of components (I) to (III). Moreover, additional components (V), such as catalysts and pH buffers may be added. Said compositions may be used for, among other things, coatings, adhesives and sealants. The water dispersible or slightly soluble epoxy functional silane for use herein are of the general structure R.sup.1.sub.a R.sup.2.sub.b Si(OR.sup.3).sub.4-a-b where R.sup.1 is an epoxy substituted alkyl or aralkyl group, where the alkyl may have from four to thirty carbon atoms, R.sup.3 is an alkyl or alkoxy-substituted alkyl, aryl or aralkyl group having from two to ten carbon atoms, R.sup.2 is an alkyl group or alkoxy substituted alkyl, aryl or aralkyl group having from one to ten carbon atoms, a is one to three, and b is zero to two, with the proviso that a+b is 1, 2, or 3. R.sup.1, R.sup.2, and R.sup.3 group may be cyclic, branched or linear.

Composition of epoxysilane emulsion additives in water based reactive

Stable alkoxy silane containing compositions and methods for the preparation of a stable silane containing compositions comprising: (I) a water insoluble or slightly soluble alkoxy silane; (II) emulsifier; (III) water; and (IV) water dispersible or emulsified polymer containing an alkoxy silane functional group. Also provided are two part systems such that an alkoxy silane emulsion comprising components (I)-(III) are combined and the component (IV) may be added upon use of components (I) to (III). Moreover, additional components, (V), such as catalysts and pH buffers may be added.

Aqueous curable silane/polymer compositions

Curable composition comprising a stable, water dispersible, curable polymer containing a sterically hindered alkoxylated silane group at 0.1 to 75 weight percent of the total composition; a water dispersible or water soluble, hydrolytically stable organometallic catalyst, at 0.1 to 10 weight percent of the total composition; and water at 99.8 to 24.9 weight percent of the total composition are taught herein. These compositions are useful as adhesives, sealants and paints. The compositions have improved properties including solvent resistance, adhesion, hardness, abrasion resistance and mar resistance. Particular catalysts for use herein include dihydroxy bis [2-hydroxypropanato (2-)-O.sup.1,O.sup.2 ] titanate, mixed titanium ortho ester complexes, acetylacetonate chelate, bis(ethyl-3-oxobutanolato-O.sup.1,O.sup.3) bis(2-propanolato) titanium, alkanolamine complex of titanium and mercaptoalcohol, mercaptide or sulfide forms of diorganotins having either a Sn--S or Sn.dbd.S bond.

The present invention teaches masonry water repellents comprising aqueous emulsions of alkylalkoxysilanes with either a quaternary ammonium surfactant or a mixture of a quaternary ammonium surfactant with an amino and/or a nonionic surfactant. The alkylalkoxysilane is present at a level of about one to sixty weight percent of the final solution weight. The surfactants are present at levels of about 0.05 to 25 weight percent of the final solution weight. The useful quaternary ammonium surfactants are alkyltrimethyl or dialkyldimethyl ammonium compounds or quaternary ammonium modified dimethylpolysiloxanes. Amino and nonionic surfactants are used as additives to the quaternary surfactants. The types of nonionic surfactants contemplated herein are alkylamines and alkyl acetylenic alcohols.

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Garnerville, NY, United States of America

Ming J Chen