首页>
外国专利>
Polyurethane, polyurethane (urea), sulfur-containing polyurethane and sulfur-containing polyurethane (urea) and preparation method
Polyurethane, polyurethane (urea), sulfur-containing polyurethane and sulfur-containing polyurethane (urea) and preparation method
展开▼
机译:聚氨酯,聚氨酯(尿素),含硫聚氨酯和含硫聚氨酯(尿素)及其制备方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
The present invention relates to polyurethane(urea) and sulfur-containing polyurethane(urea) and methods for their preparation. Polyurethane(urea) of the present invention can be prepared by combining polyisocyanate; trifunctional or higher-functional polyol diol and diamine. Sulfur-containing polyurethane(urea) of the present invention can be prepared by combining (a) polyisocyanate and/or polyisothiocyanate; (b) trifunctional or higher-functional (c) polyol and/or trifunctional or higher-functional polythiol and diol and/or dithiol and/or dithiol oligomer and (d) diamine wherein at least one of (a), (b), (c) and (d) is sulfur-containing.
展开▼