Patent · US Expired

Pattern material composition

US4064083A · kind A · utility

3Cited by
2References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 28, 1976
Grant dateDec 20, 1977
Priority date—
Expiry dateJun 28, 1996

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB22C9/04
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

For use in making investment molds by the lost pattern process, a pattern material which is machinable and has the capability of being melted out of the molds without cracking them, the material consisting basically of an ethylene-vinyl resin and at least one fatty acid ketone.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.