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US005091489A
United States Patent [19] [ii] Patent Number: 5,091,489
Heilmann et al. [45] Date of Patent: Feb. 25, 1992
[54] OLIGO (2-ALKENYL AZLACTONES)
[75] Inventors: Steven M. Heilmann; Dean M.
Moren; Jerald K. Rasmussen; Larry
R. Krepski; Sadanand V. Pathre, all of
St. Paul, Minn.
[73] Assignee: Minnesota Mining and
Manufacturing Company, St. Paul,
Minn.
[21] Appl. No.: 734,925
[22] Filed: Jul. 24, 1991
Related U.S. Application Data
[62] Division of Ser. No. 602,100, Oct. 23, 1990.
[51] Int. CI.' C08F 4/20; C08F 126/06
[52] U.S. CI 526/90; 526/214;
526/238; 526/260
[58] Field of Search 526/260, 90, 214;
548/228; 544/73
