Patent Number: 6,308,349

Title: Sanitary tub

Abstract: The invention relates to a sanitary tub with an outer shell made of steel sheet, an inner shell made of plastic, and an intermediate layer connecting the two shells. A protective coating is applied to the outer shell to protect against corrosion. The outer shell is provided with a coating applied to both the inner and outer sides. This coating consists of a conversion layer produced by phosphatizing, and a lacquer forming on the outer side the abrasion and impact resistant protective coating. On the inner side of the shell an agent effectively imparts adhesion between the steel sheet and the intermediate layer without mechanical roughening.

Inventors: Pieper; Fritz (Delmenhorst, DE)

Assignee: Franz Kaldewei GmbH & Co. KG

International Classification: A47K 3/02 (20060101); B29C 63/48 (20060101); B29C 63/00 (20060101); A47K 003/02 (); B29C 063/48 ()

Expiration Date: 10/30/2018