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    • 10. 发明申请
    • REDEGISTABLE CELLULOSE-CONTAINING MATERIALS
    • 再制浆含有纤维素材料
    • WO1996020309A1
    • 1996-07-04
    • PCT/EP1995004868
    • 1995-12-11
    • BAYER AKTIENGESELLSCHAFTJANSEN, BernhardKÖNIG, JoachimTHIELE, BerndREINERS, JürgenMEYER, Rolf-Volker
    • BAYER AKTIENGESELLSCHAFT
    • D21H17/08
    • D21H17/08C08G18/283C08G18/284C08G18/706C08G18/8009C08G18/8051C08G18/807C08L97/02Y10T428/31591C08L2666/20
    • The invention concerns materials containing cellulose (such as wood) and produced using water-dispersible polyisocyanates which in their turn are produced by the reaction of the following initial components: (a) modified polyisocyanates of formula (I), in which R represents an aliphatic hydrocarbon group with 2-18 carbon atoms, a cycloaliphatic hydrocarbon group with 4-15 carbon atoms, an aromatic hydrocarbon group with 6-15 carbon atoms or an araliphatic hydrocarbon group with 8-15 carbon atoms, R represents an aliphatic hydrocarbon group, optionally with double bonds, with 10-35 carbon atoms, R represents an at least divalent hydrocarbon group, which can also optionally be heterocyclic by incorporation of the ester oxygen or amide nitrogen from X; X represents (i) and/or (ii) and/or (iii) and or (iv), R representing H, C1-C4 alkyl or a component of a ring structure; n is a number not less than 2 and y is not less than 1; (b) unmodified polyisocyanates; (c) optionally ester groups containing polyethylene oxide-polyethylene alcohols; (d) optionally cycloaliphatic and/or aliphatic amines, which may optionally contain ether, ester or amide groups and contain at least one isocyanate-reactive functional group and at least one tertiary amino group and/or ammonium group.
    • 纤维素,其已经通过使用而后者又是通过以下起始组分反应而制得水分散性聚异氰酸酯获得的任选含有木材的材料,R <1>是具有2至18的脂族烃基:a)橡胶改性的式(I),其中的多异氰酸酯 碳原子; 碳原子数为4〜15的脂环族烃基; 具有6至15个碳原子或具有碳原子数为8〜15的芳脂族烃基的芳族烃基,R <2>是具有10至35个碳原子,R <3>任选含有双键的脂族烃残基的至少二价的烃基,其还可以任选地包括酯氧 或从X酰胺氮可以是杂环,X(i)和/或(ii)和/或(iii)和/或(iv)其中R = H或C1-C4烷基或环形结构的R分量,n是一个 数> / = 2,y为> / = 1,b)中未改性的多异氰酸酯,c)含酯基团的任选的醇聚环氧乙烷 - 聚醚,d)任选的脂环族和/或脂族的,任选含有醚,酯或酰胺基团的胺, 具有至少一个异氰酸酯反应性官能团和至少一个叔氨基和/或铵E组 nthalten。