Ion-exchanged abrasion resistant coatings

Details Ion-exchanged abrasion resistant coatings Ion-exchanged abrasion resistant coatings

1990-06-29

1991-07-30

Morris, Theodore

Compositions: coating or plastic

Coating or plastic compositions

Silicon containing other than solely as silicon dioxide or...

10628712, 10628713, 10628714, 10628717, 10628718, 10628719, C09K 300, C04B 1400

Patent

active

050357450

ABSTRACT:
An abrasion resistant and ultraviolet radiation resistant coating is disclosed comprising an inorganic oxide matrix formed by the hydrolysis and condensation of an alkoxysilane and/or other metal alkoxide, further comprising cerium oxide for ultraviolet radiation resistant and/or silica for improved abrasion resistance. A partially hydrolyzed silane sol containing colloidal cerium oxide is ion-exchange with an anion exchange resin in one embodiment. In another a partially hydrolyzed silane sol containing colloidal silica is ion-exchanged to remove sodium ions prior to adding the colloidal ceria resulting in improved properties in the coating composition and resultant coating.

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