Abstract: Thermoplastic hot melt compositions and process for forming such compositions are disclosed. The compositions comprise a polyurethane having at least one plasticizer reacted therein formed by heating a reaction mixture comprising at least one isocyanate having a functionality less than about 2, at least one long chain polyol, at least one chain extender and the at least one plasticizer at a temperature of at least about 330.degree. F. where the components are present in an amount as defined in the specification. The process is adequately reflected by the above language.
Type:
Grant
Filed:
February 22, 1985
Date of Patent:
August 26, 1986
Assignee:
Gensco Inc.
Inventors:
Richard W. Czerwinski, Larry D. Osterberger