Johnson & Johnson Consumer Products, Inc.

Rohm and Haas Company

Donald S Mueller

Albert C Chen

David L Siegfried

Robert D DeLuca

Robin M Jones

Mary S Yeganeh

The adhesive strength of alumina brackets to acrylic adhesive cements is enhanced by forming an essentially silica coating on the bonding surface of the bracket by the steps of coating said surface with an organosilicon compound such as a silane and then pyrolyzing the organosilicon coating to volatilize the organic components thereof to thereby leave an essentially silica coating.

Adhesive primer for alumina brackets

A stain resistant no-mix orthodontic adhesive is disclosed. The adhesive comprises:

Stain-resistant no-mix orthodontic adhesive

Compositions having high notched Izod impact strength and Gardner VHIT impact value are achieved by blending polyglutarimides, multiple stage polymers based on butadiene or acrylates, and polycarbonate in a weight ratio such that the polycarbonate comprises about 12 to 25% of the blend.

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Newtown, PA, United States of America

Donald S Mueller