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    • 1. 发明授权
    • Polyamide polyurethane prepared by reaction of polyisocyanate with a
1,1-diamino ethylene
    • 通过多异氰酸酯与1,1-二氨基乙烯反应制备的聚酰胺聚氨酯
    • US4342841A
    • 1982-08-03
    • US292871
    • 1981-08-14
    • Louis M. AlberinoDale F. Regelman
    • Louis M. AlberinoDale F. Regelman
    • C08G18/67C08G18/14
    • C08G18/678C08G2120/00
    • Polyamide polyurethane polymers are disclosed that are derived from the reaction of (A) an organic polyisocyanate; (B) at least one organic polyol; and (C) a ketene-aminal having the formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, and R.sub.4, when taken separately, are independently selected from the group consisting of lower alkyl, aralkyl, and cycloalkyl and, when taken together as R.sub.1 with R.sub.2 and R.sub.3 with R.sub.4 with the respective nitrogen atoms to which they are attached, represent independently heterocyclic groups having from 5 to 7 ring atoms, wherein the equivalent proportions of said polyol component (B) to said ketene-aminal component (C) fall within the range of about 1:4 to about 1:80 and the ratio of equivalents of said isocyanate to total equivalents of isocyanate reactive ingredients (B) plus (C) is within the range of about 0.95:1 to 6:1.The polymers find particular utility in the preparation of RIM parts which parts have essentially attained their optimum physical properties without the need of a thermal curing step.
    • 公开了衍生自(A)有机多异氰酸酯的反应的聚酰胺聚氨酯聚合物; (B)至少一种有机多元醇; 和(C)具有式“IMAGE”的乙烯酮 - 缩醛,其中R1,R2,R3和R4分别独立地选自低级烷基,芳烷基和环烷基,并且当作为R1 其中R 2和R 3与其与它们所连接的相应氮原子的R4独立地表示具有5至7个环原子的杂环基,其中所述多元醇组分(B)与所述烯酮 - 缩醛组分(C)的当量比例下降 在约1:4至约1:80的范围内,所述异氰酸酯的当量与异氰酸酯反应性成分(B)加上(C)的总当量的比率在约0.95:1至6:1的范围内。 该聚合物在制备RIM部件方面具有特别的用途,这些部件基本上达到其最佳物理性能,而不需要热固化步骤。
    • 3. 发明授权
    • Novel polyamides from ketene-aminals
    • 来自乙烯酮的新型聚酰胺
    • US4338428A
    • 1982-07-06
    • US292872
    • 1981-08-14
    • Louis M. AlberinoDale F. Regelman
    • Louis M. AlberinoDale F. Regelman
    • C08G18/67C08G18/32C08G18/38C08G69/08
    • C08G18/678C08G2120/00
    • Novel polyketene-aminal polyamides are disclosed which have the following recurring unit ##STR1## wherein R is a divalent hydrocarbon radical, R.sub.1, R.sub.2, R.sub.3, and R.sub.4 when taken separately are independently selected from the group consisting of lower alkyl, aralkyl, and cycloalkyl, and when taken together as R.sub.1 with R.sub.2 and R.sub.3 with R.sub.4 with the respective nitrogen atoms to which they are attached represent independently a heterocyclic group having from 5 to 7 ring atoms.The polyamides are prepared by reacting together the appropriate diisocyanate [R(NCO).sub.2 ] and appropriate ketene-aminal to form the polymer directly without the evolution of any by-products or volatiles.The novel polymers are thermoplastic and can be formed or shaped using any of the techniques known to those skilled in the thermoplastic polymer art.
    • 公开了具有以下重复单元的新型聚烯酮 - 酰胺聚酰胺,其中R是二价烃基,R 1,R 2,R 3和R 4分开独立地选自低级烷基,芳烷基和环烷基 并且当R 1和R 3与R 4与它们所连接的相应氮原子一起作为R 1独立地表示具有5至7个环原子的杂环基时。 聚酰胺通过使合适的二异氰酸酯[R(NCO)2]和适当的乙烯酮 - 胺反应而直接形成聚合物而制备,而不会产生任何副产物或挥发物。 新型聚合物是热塑性的并且可以使用热塑性聚合物领域的技术人员已知的任何技术形成或成型。