发明授权
US4547265A Method for sizing paper using hydrolyzed homopolymers or copolymers of meta- or para- isopropenyl-.alpha.,.alpha.-dimethylbenzylisocyanate 失效
使用水解的均聚物或间 - 或对 - 异丙烯基-α,α-二甲基苄基异氰酸酯的共聚物来调整纸张的方法

Method for sizing paper using hydrolyzed homopolymers or copolymers of
meta- or para- isopropenyl-.alpha.,.alpha.-dimethylbenzylisocyanate
摘要:
A method of sizing paper, comprising applying thereto a sizingly effective amount of a polymer selected from the group consisting of:(a) homopolymers of .alpha.,.alpha.-dimethyl-m-isopropenyl benzyl amine or .alpha.,.alpha.-dimethyl-p-isopropenyl benzyl amine;(b) copolymers of (i) .alpha.,.alpha.-dimethyl-m-isopropenyl benzyl amine or .alpha.,.alpha.-dimethyl-p-isopropenyl benzylamine, and (ii) at least one other ethylenically unsaturated monomer copolymerizable therewith; and(c) acid salts of said homopolymers (a) and copolymers (b).Such homopolymers or copolymers suitably may be prepared as the hydrolysis reaction products of the corresponding homopolymeric or copolymeric isocyanates.
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