Pcr, Inc.

Pcr Group, Inc.

Scm Corporation

Thoro System Products, Inc.

Michael E Wilson

Ralph J DePasquale

Levy A Canova

Alfred D Ulrich, Iii

Wallace G Joslyn

Van A Stewart

Donald R Varina

Christine L Vidal

Mark A Gierke

There are provided aqueous emulsions useful for rendering porous substrates water repellent comprising

Organosilicon emulsions for rendering porous substrates water repellent

Aqueous compositions of emulsified oxyaluminum acylate solutions comprising solutions of oxyaluminum acylate in a largely water insoluble solvent, an alcohol or an organic acid, an emulsifier or mixture of emulsifiers, and water are provided. Articles comprising substrates rendered water-repellent with such emulsions are provided as well. A process for the preparation of such articles is also provided.

Oxyaluminum acylate containing emulsion compositions and use

There are provided reinforcing additives, e.g., for polyolefins, comprising (a) a hydrolyzable silane having an ethylenically unsaturated amide substituent and (b) a free radical generator. Also provided is a single step method of using such additives with hydroxyl-containing reinforcements, such as mica to improve processability and physical and thermal resistance properties of reinforced resin compositions.

Silane compositions for reinforcement of polyolefins

There are provided aqueous emulsions useful for rendering porous substrates water repellent having low volatile organic compound content when cured comprising effective amounts of (a) a hydrolyzable silane having a determinable pH-stable range, (b) an emulsifying agent having an HLB value of from 2 to 20, (c) a buffering compound to maintain the composition within the pH-stable range; and (d) water. Such buffered compositions are stable on long term storage and maintain high effective levels of active silane content even when they include biocides which may accelerate the hydrolysis of aqueous silane-containing compositions.

Buffered silane emulsions having low volatile organic compounds when

Expanded perlite compositions containing thereon, therein or thereon and therein buffered aqueous silane emulsion compositions as well as hydrophobic expanded perlite compositions as described above but from which residual water has been removed are provided. A process for the preparation of the same is also provided.

Hydrophobic expanded perlite compositions and process for preparing the

There are provided aqueous emulsions useful for rendering porous substrates water repellent comprising (a) a hydrolyzable silane having a determinable pH-stable range, (b) an emulsifying agent having an HLB value of from 2 to 20, an effective amount of (c) a buffering compound to maintain the composition within the pH-stable range; and (d) water. Such buffered compositions are stable on long term storage and maintain high effective levels of active silane content even when they include biocides which may accelerate the hydrolysis of aqueous silane-containing compositions.

Buffered silane emulsions for rendering porous substrates water repellent

There is provided a method and compositions for improving the resistance to absorption of water by a porous rigid sintered and pressed block of short staple amorphous silica fiber by distributing within the pores of said block an alkylalkoxysilane or a fluoroalkylalkoxysilane which is substantially free of deleterious halide. Halide may be reduced by special purification techniques or by netralization in situ with acid scavanger.

Composition for waterproofing silica-ceramic insulation bodies

There is provided a novel product having the formula: ##STR1## where 'polymer' is an amine functional polymer, such as amine terminated polyethylene imine, amine terminated polyalkylene glycols, amine terminated anilineformaldehyde, amine terminated nylons, amine functional silicones; R.sup.1, R.sup.2, and R.sup.3 are C.sub.1 -C.sub.8 monovalent hydrocarbyl radicals, m is 1 to 3 and n is 1 to 10.

Silane modified polymers

There is provided an aqueous emulsion of (a) a hydrolyzable silane having the general formula:

Aqueous systems containing silanes for rendering masonry surfaces water

There is provided a method and composition for improving the resistance to absorption of water by a porous rigid sintered and pressed block of short staple amorphous silica fiber by distributing within the pores of said block an alkylalkoxysilane or a fluoroalkylalkoxysilane which is substantially free of deleterious halide. Halide may be reduced by special purification techniques or by neutralization in situ with an acid scavenger.

Method for waterproofing silica-ceramic insulation bodies

Polyhydroxyl silanes or siloxanes useful as vehicles for coatings applicable to metal, mineral or glass surfaces, are made by reacting a silane or siloxane having an amine terminated substituent attached to silicon with an aldonic acid lactone. Reaction occurs at temperatures below 80.degree. C. in alcohol solution under inert gas blanket. Products are water soluble and polymerizable at slightly elevated temperatures to hard, water insoluble tightly adhering films.

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Middleburg, FL, United States of America

Michael E Wilson