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    • 1. 发明公开
    • 빛에 안정한 탄성중합체인 연질 또는 반연질 폴리우레탄 성형물과 그것의 성형방법
    • 光稳定弹性聚氨酯模具及其生产工艺
    • KR1020000048830A
    • 2000-07-25
    • KR1019997002826
    • 1997-10-01
    • 렉티셀, 에스.아.
    • 두프레쯔에디코펜즈피에르
    • C08G18/22
    • C08G18/163C08G18/22C08G18/792C08G2101/0008C08G2101/0016C08G2101/0066C08G2120/00
    • PURPOSE: A process for the production of micro-cellular or non-cellular, light-stable elastomeric, flexible or semi-flexible polyurethane mouldings which are especially suited for window encapsulation applications from a reaction mixture by the reaction injection moulding process, is provided. CONSTITUTION: In the method, A) an isocyanate component containing an isophorone diisocyanate (IPDI) trimer/monomer mixture having an NCO content of from 24.5 to 34 % by weight, is reacted with B) isocyanate-reactive components comprising: b1) a polyetherpolyol having terminal OH groups, an average nominal functionality of 2 to 4, and an average equivalent weight of from 800 to 4000; b2) at least one chain extender component having as functional groups only aliphatic or alicyclic OH groups; b3) at least one amine-initiator component; in the presence of C) at least one catalyst component selected from the group consisting of organolead (II), organobismuth (III), and organotin (IV) catalysts; D) at least one pigment component, and E) at least one antioxidant/UV absorber component.
    • 目的:提供特别适用于通过反应注射成型工艺的反应混合物的窗口封装应用的微孔或非细胞,轻稳定的弹性体,柔性或半柔性聚氨酯模塑制品的方法。 方案:在该方法中,A)含有NCO含量为24.5至34重量%的异佛尔酮二异氰酸酯(IPDI)三聚物/单体混合物的异氰酸酯组分与B)异氰酸酯反应性组分反应,所述组分包括:b1)聚醚多元醇 具有末端OH基团,平均官能度为2至4,平均当量为800至4000; b2)至少一种仅具有脂族或脂环族OH基团的官能团的扩链剂组分; b3)至少一种胺 - 引发剂组分; 在C)存在下的至少一种催化剂组分选自有机锡(II),有机铋(III)和有机锡(IV)催化剂; D)至少一种颜料组分,和E)至少一种抗氧化剂/ UV吸收剂组分。