会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明授权
    • Process for the production of polyurethane-and/or polyurea-based moldings
    • 用于生产聚氨酯和/或聚脲基模制品的方法
    • US4919878A
    • 1990-04-24
    • US81043
    • 1987-08-03
    • Friedhelm PilgerRichard KoppOtto Ganster
    • Friedhelm PilgerRichard KoppOtto Ganster
    • B29C33/56B29C33/60C08K5/098C08K5/16C08L75/00C08L75/04
    • C08K5/098B29C33/60C08K5/16B29K2075/00B29K2105/04Y10S264/83
    • A process for the production of optionally foamed moldings having a compact surface by the reaction in closed molds of a mixture of(a) organic polyisocyanates,(b) compounds containing isocyanate-reactive groups and having a molecular weight of 62 to about 10,000 and(c) mold release agents based on salts of (i) saturated or unsaturated aliphatic or cycloaliphatic carboxylic acids or carboxylic acid mixtures containing (on a statistical average) at least 8 carbon atoms per molecule and (ii) tertiary amines,characterized in that the release agents (c) used are salts in which the amine component (ii) is based on tertiary monoamines or mixtures of tertiary monoamines corresponding to the following formula ##STR1## in which R.sub.1 represents a saturated or unsaturated aliphatic hydrocarbon radical containing at least 12 carbon atoms and R.sub.2 and R.sub.3 may be the same or different and represent saturated or unsaturated, preferably saturated, aliphatic hydrocarbon radicals containing from 1 to 18, preferably from 1 to 4 carbon atoms, more preferably, methyl groups and/or C.sub.2 -C.sub.40 hydroxyalkyl radicals optionally containing ether bridges.
    • 通过在(a)有机多异氰酸酯,(b)含有异氰酸酯反应性基团并且具有62至约10,000的分子量的化合物的混合物的闭合模具中的反应中产生具有紧密表面的任选发泡模制品的方法, c)基于(i)饱和或不饱和脂族或脂环族羧酸或含有每分子至少8个碳原子的统计平均值的羧酸混合物和(ii)叔胺的盐的脱模剂,其特征在于, 使用的试剂(c)是其中胺组分(ii)基于叔单胺或对应于下式的IMA单体的混合物的盐,其中R 1表示含有至少12个碳原子的饱和或不饱和脂族烃基 并且R 2和R 3可以相同或不同,表示含有1至18个p的饱和或不饱和的,优选饱和的脂族烃基 可以具有1至4个碳原子,更优选甲基和/或任选含有醚桥的C 2 -C 40羟基烷基。