Coating processes – With post-treatment of coating or coating material – Heating or drying
Patent
1988-05-02
1989-10-31
Lusignan, Michael
Coating processes
With post-treatment of coating or coating material
Heating or drying
106 2, 10628713, 427393, 4273934, 4273936, 428447, B05D 302
Patent
active
048776548
ABSTRACT:
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.
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Lusignan Michael
PCR, Inc.
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