×

Process for manufacture of isobutylidene diurea

  • US 4,062,890 A
  • Filed: 05/23/1975
  • Issued: 12/13/1977
  • Est. Priority Date: 05/23/1975
  • Status: Expired due to Term
First Claim
Patent Images

1. A process for manufacturing isobutylidene diurea comprising reacting an aqueous solution of urea with isobutyraldehyde at a pH of from about 7.0-9.0 and in the presence of from about 1-10% by weight of a glue or gelatin protein emulsifier derived from collagen and in the presence of from about 0.5-10% by weight of a polyvalent inorganic ammonium salt reaction accelerator.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×