摘要 |
PCT No. PCT/JP88/00040 Sec. 371 Date Sep. 14, 1988 Sec. 102(e) Date Sep. 14, 1988 PCT Filed Jan. 21, 1988 PCT Pub. No. WO88/05431 PCT Pub. Date Jul. 28, 1988.This invention relates to beta -amino- beta -propiolactam derivativatives, moisture curable polyurethane compositions and their applications. The products of this invention have excellent characteristics such as good storage stability, rapid curing with atmospheric moisture and freedom from foaming. More particularly, condensed compounds are obtained by reacting specific secondary diamines such as piperazine and 1,3-(4,4'-dipiperidyl)propane with monoaldehyde having at least 3 carbon atoms, for example, isobutylaldehyde and beta -phenylpropylaldehyde. The beta -amino- beta -propiolactam derivatives are prepared by reacting the condensed compounds with monoisocyanate such as phenyl isocyanate and equimolar reaction products of diisocyanate with lower monohydric alcohol. In addition, the moisture curable polyurethane compositions contain said derivatives and polyisocyanate and/or polyurethane prepolymer having terminal isocyanato radicals. Moisture curable sealing materials, wall covering materials and water proof materials are provided by the addition of various auxiliary agents to said compositions according to the field of application. |