Polyurethane compositions and their use as luting

专利名称：Polyurethane compositions and their use as

luting agents

发明人：Sixtus J. Oechsle, III申请号：US06/419999申请日：19820920公开号：US04477604A公开日：19841016

摘要：Polyurethane and poly(urea)urethane compositions as specified below areutilized as luting agents, for filling cavities or spaces in human or other animal bones, andare introduced in liquid form and formed in situ to create a polyurethane or

poly(urea)urethane elastomer which is relatively compatible with the surrounding tissue,has good adhesive properties, low friability, and good tear and tensile strength. Theinvention includes the polyurethane and poly(urea)urethane compositions disclosed andtheir uses in the performance of surgery in human beings and other animals. Thepolyurethane and poly(urea)urethane compositions are produced by the reaction of an\"A\" component prepolymer which is the reaction product of a diiosocyanate with a longchain diol or polyol, and a two element \"B\" component, which may include as a filler anyof the polyols used in producing the \"A\" component prepolymer, and as a curing agentrelatively short chain diol or triol and, desirably, a diamine (in the case of a

poly(urea)urethane) or combinations thereof. The curing agent of the \"B\" component isrelatively highly reactive and reacts with a majority of the \"A\" component. The filler of the\"B\" component is less reactive and acts as a bulking agent to facilitate mixing of the \"A\"and \"B\" components.

申请人：OECHSLE, III; SIXTUS J.

代理人：Robert S. Bramson

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