Polymerization of .beta.-lactones under rim conditions

Details Polymerization of .beta.-lactones under rim conditions Polymerization of .beta.-lactones under rim conditions

1992-12-01

1994-09-20

Welsh, Maurice J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

528357, 528361, C08G 6308

Patent

active

053490460

ABSTRACT:
A method is disclosed for making a molded article of manufacture of polymerized .beta.-lactone which method involves injecting into a mold at least one .beta.-lactone monomer and at least one nucleophilic initiator, substantially polymerizing the .beta.-lactone in the mold and removing the resultant polymerized article from the mold.

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N. R. Mayne, "Polymerization of Pivalolactone," Advances in Chemistry Series, 129, ed. N. A. J. Platzer, ACS Press, Washington, D.C. 1973.
"Reaction Injection Molding, " Encyclopedia of Polymer Science & Engineering, vol. 14, p. 89.
"Reaction Injection Molding," Encyclopedia of Polymer Science & Engineering, vol. 14, p. 88.

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