Production of low-shrinkage nylon moldings
    1.
    发明授权
    Production of low-shrinkage nylon moldings 失效
    生产低收缩尼龙成型品

    公开(公告)号:US4590242A

    公开(公告)日:1986-05-20

    申请号:US513839

    申请日:1983-07-14

    CPC分类号: C08G69/18

    摘要: Low-shrinkage nylon moldings are produced by activated alkaline lactam polymerization, preferably using the reactive injection molding technique, by a process wherein the polymerization is carried out in the presence of from 5 to 80% by weight of a polymer P which1. is completely soluble in the lactam,2. separates out in the course of polymerization at a conversion of from 1 to 50%,3. is composed of one or more blocks which are compatible with polylactam and one or more blocks which are incompatible therewith, and preferably4. possesses functional groups which are incorporated into the growing polylactam chain.

    摘要翻译: 低收缩尼龙模制品通过活性碱性内酰胺聚合制备,优选使用反应性注射成型技术,其中聚合反应在5-80重量%聚合物P的存在下进行,聚合物P是完全 可溶于内酰胺,2.在聚合过程中以1至50%的转化率分离出来,3.由与多内酰胺相容的一个或多个嵌段和与其不相容的一个或多个嵌段组成,优选 4.具有并入生长的聚内酰胺链中的官能团。

    Photopolymerizable composition with acylphosphine sulfide photoinitiator
and method
    8.
    发明授权
    Photopolymerizable composition with acylphosphine sulfide photoinitiator and method 失效
    具有酰基膦硫化物光引发剂的光聚合组合物及方法

    公开(公告)号:US4522693A

    公开(公告)日:1985-06-11

    申请号:US500429

    申请日:1983-06-02

    摘要: Acylphosphine sulfides of the formula ##STR1## where R.sup.1 is alkyl, cycloalkyl or an unsubstituted or substituted phenyl, naphthyl or heterocyclic radical; R.sup.2 has the meaning of R.sup.1 and can be identical to or different from R.sup.1, or is alkoxy, unsubstituted or substituted phenoxy or phenoxyalkyl, or R.sup.1 or R.sup.2 are linked together to form a ring, which may contain further alkyl substituents and fused-on benzene rings; R.sup.3 is alkyl, a cycloaliphatic radical, substituted phenyl, an unsubstituted or substituted naphthyl or heterocyclic radical or the group ##STR2## where X is unsubstituted or substituted phenylene or an aliphatic or cycloaliphatic divalent radical; and where one or more of R.sup.1, R.sup.2 and R.sup.3 may be olefinically unsaturated.These acylphosphine sulfides can be prepared from acylphosphines and sulfur and can be used as photoinitiators in photopolymerizable compositions.

    摘要翻译: 其中R 1为烷基,环烷基或未取代或取代的苯基,萘基或杂环基团的酰基膦硫化物。 R 2具有R 1的含义并且可以与R 1相同或不同,或者是烷氧基,未取代或取代的苯氧基或苯氧基烷基,或者R 1或R 2连接在一起形成环,其可以含有其它烷基取代基和稠合在苯上 戒指; R3是烷基,脂环族基团,取代的苯基,未取代或取代的萘基或杂环基团或基团,其中X是未取代或取代的亚苯基或脂族或脂环族二价基团; 并且其中R 1,R 2和R 3中的一个或多个可以是烯属不饱和的。 这些酰基膦硫化物可以由酰基膦和硫制备,并且可以用作可光聚合组合物中的光引发剂。

    Curable polyester molding materials
    10.
    发明授权
    Curable polyester molding materials 失效
    可固化聚酯成型材料

    公开(公告)号:US4777195A

    公开(公告)日:1988-10-11

    申请号:US133734

    申请日:1987-12-16

    CPC分类号: C08K5/175

    摘要: Curable polyester molding materials contain a mixture ofA. an ethylenically unsaturated polyester or a vinyl ester possessing an unsaturated terminal group,B. copolymerizable monomers,C. fibrous reinforcing agents,D. powdered fillers,E. organic free radical initiators,F. a viscosity depressant andG. conventional additives.The viscosity depressant is a tertiary or secondary amine which carries a long-chain alkyl or acyl group and a carboxyl group.

    摘要翻译: 可固化聚酯成型材料包含A.具有不饱和端基的乙烯基不饱和聚酯或乙烯基酯的混合物,B.可共聚单体,C.纤维增强剂,D.粉末状填料,E.有机自由基引发剂,F.a 粘度抑制剂和G.常规添加剂。 降粘剂是带有长链烷基或酰基和羧基的叔胺或仲胺。