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    • 7. 发明授权
    • N-alkylimide copolymers and their use as sizing agents
    • N-烷基酰亚胺共聚物及其作为上浆剂的用途
    • US4596863A
    • 1986-06-24
    • US607103
    • 1984-05-04
    • Gunter SackmannUlrich BeckHeinz Baumgen
    • Gunter SackmannUlrich BeckHeinz Baumgen
    • C08F8/14C08F8/32D21H17/43C08F22/40D21D3/00
    • C08F8/14C08F8/32D21H17/43
    • The present invention relates to new copolymers based on maleic anhydride/.alpha.,.beta.-unsaturated compounds and characterized in that they consist of(A) 10 to 40 mol percent of the structural element ##STR1## (B) 40 to 80 mol percent of the structural element ##STR2## and (C) 10 to 50 mol percent of the structural element ##STR3## where the total of mol percentages of (A), (B) and (C) is 100 and whereR.sub.1 =hydrogen or alkyl,R.sub.2 =hydrogen, alkyl or optionally substituted aryl,R.sub.3 =a hydrocarbon radical having 10 to 22 C atoms,R.sub.4 =a hydrocarbon radical having 10 to 22 C atoms, andX=an oxygen atom or an NR.sub.5 group where R.sub.5 represents a hydrocarbon radical having 1 to 18 C atoms.The copolymers in question are excellent active ingredients for sizing agents for paper and are suitable not only for pulp-sizing but also for surface-sizing.
    • 本发明涉及基于马来酸酐/α,β-不饱和化合物的新共聚物,其特征在于它们由(A)10〜40摩尔%的结构单元组成(I)(B)40〜80摩尔 (A),(B)和(C)的总摩尔百分数为100的结构单元(II)和(C)的10〜50摩尔%的结构单元的百分比(IMA) 并且其中R 1 =氢或烷基,R 2 =氢,烷基或任选取代的芳基,R 3 =具有10-22个碳原子的烃基,R4 =具有10-22个碳原子的烃基,X =氧原子或 NR5基,其中R5表示具有1至18个C原子的烃基。 所述共聚物是用于纸张的上浆剂的优异活性成分,并且不仅适用于浆浆施胶,而且适用于表面施胶。