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1.
公开(公告)号:US5856371A
公开(公告)日:1999-01-05
申请号:US599694
申请日:1996-02-09
CPC分类号: B32B5/20 , B29C44/326 , Y10T428/24512 , Y10T428/249978 , Y10T428/249987 , Y10T428/249988 , Y10T428/249991 , Y10T428/249992 , Y10T428/251 , Y10T428/2911 , Y10T428/31551 , Y10T428/31565
摘要: For the production of sandwich structure elements comprising non-cellular polyurethane layers and polyurethane foamed layers which are produced on a substrate by the application of layers to a substrate, it is proposed that at least the non-cellular polyurethane layers contain 15 to 55% by weight of mica. Sandwich structure elements are obtained which are particularly dimensionally accurate and which adhere well. The effect is believed to be based on a non-homogeneous curing reaction of the mixture which reacts to form polyurethane, due to the presence of mica.
摘要翻译: 为了生产包含通过向衬底施加层而在衬底上制造的非多孔聚氨酯层和聚氨酯泡沫层的夹层结构元件,建议至少非多孔聚氨酯层含有15至55% 云母重量 获得三明治结构元件,其特别是尺寸准确并且良好地粘附。 据信这种效果是由于由于云母的存在而反应形成聚氨酯的混合物的非均匀固化反应。
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公开(公告)号:US4500656A
公开(公告)日:1985-02-19
申请号:US594054
申请日:1984-03-28
CPC分类号: C08G18/3296 , C08G18/6535 , Y10S521/904
摘要: The present invention relates to a process for the preparation of a cellular polyurethane by the reaction of(A) a polyisocyanate with(B) an isocyanate reactive component containing(1) at least one component having a molecular weight of about 60-2000 and a functionality of 2 to 8, containing isocyanate reactive groups,(2) optionally at least one component having a molecular weight of about 2000 to 12,000 and a functionality of 2 to 8 containing isocyanate reactive groups.(3) about 0.1 to 30 parts, based on 100 parts of (B1)+(B2), of a liquid adduct of an amine and carbon dioxide, and(4) optionally water, blowing agents, foam stabilizers, catalysts and other auxiliary agents and additives,characterized in that the liquid adduct of amine and carbon dioxide is liquid at 20.degree. C., optionally contains water, and is an adduct of carbon dioxide and an amine having at least one amino group and containing at least one primary, secondary or tertiary hydroxyl group, which amine may be solid or liquid at 20.degree. C.
摘要翻译: 本发明涉及通过(A)多异氰酸酯与(B)异氰酸酯反应性成分的反应制备细胞聚氨酯的方法,所述异氰酸酯反应性成分含有(1)至少一种分子量为约60-2000的成分和 含有异氰酸酯反应性基团的官能度为2至8,(2)任选地至少一种分子量为约2000至12,000且官能度为2至8的含异氰酸酯反应性基团的组分。 (3)约0.1至30份,基于100份(B1)+(B2)的胺和二氧化碳的液体加合物,和(4)任选的水,发泡剂,泡沫稳定剂,催化剂和其它助剂 试剂和添加剂,其特征在于胺和二氧化碳的液体加合物在20℃下为液体,任选地含有水,并且是二氧化碳和具有至少一个氨基并且含有至少一个伯, 二羟基或叔羟基,该胺在20℃下可以是固体或液体。
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