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    • 11. 发明授权
    • Process for the production of a substantially equimolecular copolymer of
maleic acid anhydride and diisobutylene
    • 用于生产马来酸酐和二异丁烯基本上等摩尔分子共聚物的方法
    • US4151336A
    • 1979-04-24
    • US869043
    • 1978-01-13
    • Gunter SackmannGunter KolbHeinz FischerFriedhelm Muller
    • Gunter SackmannGunter KolbHeinz FischerFriedhelm Muller
    • C08F2/00C08F8/14C08F10/00C08F10/14C08F20/00C08F20/02C08F210/14C08F220/04C08F222/06D21H17/37D21H17/43C08F6/06C08F6/24
    • C08F222/06C08F210/14D21H17/43
    • An improved process for the production of a substantially equimolecular copolymer of maleic acid anhydride and diisobutylene in which from 10 to 100 mole % of the anhydride groups are esterified with linear or branched aliphatic monoalcohols containing from 1 to 20 carbon atoms or with cycloaliphatic monoalcohols containing from 5 to 6 carbon atoms to form the corresponding semiesters, wherein shortly before or after the end of the solution or suspension copolymerization of maleic acid anhydride and diisobutylene a monomer corresponding to the general formula ##STR1## in which R=H, CH.sub.3, C.sub.2 H.sub.5, --OR.sub.2, --O--CO--CH.sub.3, ##STR2## --CH.sub.2 OH, --CH.sub.2 O--C--CH.sub.3, R.sub.1 =H , CH.sub.3 andR.sub.2 =a linear or branched alkyl group containing from 1 to 4 carbon atoms,Or mixtures of these monomers with one another are added to the polymerization mixture in quantities of from 1 to 12 mole %, based on the maleic acid anhydride used. The aqueous or aqueous-alcoholic alkali, amine or ammonium salt solutions of the semiesters of the copolymer are highly effective as anionic sizing agents for paper.
    • 用于生产马来酸酐和二异丁烯的基本上等分子的共聚物的改进方法,其中10至100摩尔%的酸酐基团被含有1至20个碳原子的直链或支链脂族一元醇或含有1至20个碳原子的脂环族一元醇酯化 5至6个碳原子以形成相应的半分子,其中在马来酸酐和二异丁烯的溶液或悬浮液共聚之前或之后不久,对应于通式为“IMAGE”的单体,其中R = H,CH 3,C 2 H 5, -OR 2,-O-CO-CH 3, -CH 2 OH,-CH 2 O-C-CH 3,R 1 = H,CH 3和R 2 =含有1至4个碳原子的直链或支链烷基,或这些单体的混合物 另有一种添加到1至12%MOES%的聚合物混合物中,基于所用的非水性非离子表面活性剂。 共聚物的半酯的水性或水性醇碱性,胺或铵盐溶液作为纸张的阴离子施胶剂是非常有效的。