TITLE: METHOD FOR PRODUCING METAL CASTINGS
European Patent EP0219032
 B1

ABSTRACT:
Abstract not available for EP0219032
Abstract of corresponding document: US4633929
Metal castings having reduced residual carbon ash and surface flaws are
produced by an evaporative pattern casting process, in which an organic
foam pattern is vaporized upon contact with a molten metal leaving a
metal replica of the pattern. The organic foam used in this process
comprises a polymer formed by polymerizing CO2 with one or more oxirane
compounds.

INVENTORS:
Santangelo, Joseph Germano
Weber, James Joseph
Sinclair, Richard Glenn
Tenaglia, Richard David

APPLICATION NUMBER: EP19860113823
PUBLICATION DATE: 04/11/1990
FILING DATE: 10/06/1986

ASSIGNEE: AIR PRODUCTS AND CHEMICALS, INC.
INTERNATIONAL CLASSES: B22C9/04; B22C7/02; C08J9/14; C08J9/28; (IPC1-7): B22C7/02; B22C9/04
EUROPEAN CLASSES: B22C7/02B; C08J9/14B+L69/00; C08J9/28+L69/00