Karl H Merkel

US Patent:

44567286, Jun 26, 1984

Filed:

Feb 22, 1983

Appl. No.:

6/468728

Inventors:

John Garuti - Flushing NY
Karl Merkel - Bridgewater NJ

Assignee:

Super-Tek Products, Inc. - Woodside NY

International Classification:

C08K 511
C09J 314

US Classification:

524522

Abstract:

In a latex coating composition comprising a pigment, a polymeric binder and water, the improvement which comprises incorporating therein about 2 to 20% by total weight of binder of an oligomer of an unsaturated ester having a molecular weight of about 1,000 to 20,000, whereby the coating upon drying is adherent to a vitreous surface but is removable therefrom with alkali. The composition is especially suited for renewing the grout between ceramic tiles.