Process for the preparation of aqueous dispersion polymers
    6.
    发明授权
    Process for the preparation of aqueous dispersion polymers 失效
    水性分散体聚合物的制备方法

    公开(公告)号:US5707533A

    公开(公告)日:1998-01-13

    申请号:US794126

    申请日:1997-02-03

    摘要: A process for preparing a water-soluble polymer dispersion is herein provided which is characterized by polymerizing from about 10 to 50 mole percent of a monomer having a formula (II); from about 1 to 50 mole percent of N-alkylacrylamide, N, N-dialkylacrylamide or mixtures thereof; having a formula (III) from about 1 to 70 mole percent acrylamide; and optionally up to about 4 mole percent of a monomer having a formula (I) having a benzyl functionality. The polymerization is carried out in the presence of an aqueous solution of a polyvalent anionic salt which contains (1) a water soluble cationic polymer which is insoluble in the aqueous salt solution and (2) a water soluble cationic polymer which is soluble in the aqueous salt solution.

    摘要翻译: 本文提供一种制备水溶性聚合物分散体的方法,其特征在于聚合约10至50摩尔%的具有式(II)的单体; 约1至50摩尔%的N-烷基丙烯酰胺,N,N-二烷基丙烯酰胺或其混合物; 具有约1至70摩尔%丙烯酰胺的式(III); 和任选地至多约4摩尔%的具有式(I)的具有苄基官能团的单体。 聚合反应在多价阴离子盐水溶液的存在下进行,该多价阴离子盐含有(1)不溶于盐水溶液的水溶性阳离子聚合物和(2)可溶于水溶液的水溶性阳离子聚合物 盐溶液。

    Copolymes formed from N-hydroxyphenylmaleinimide (derivatives) and allyl
compounds

    公开(公告)号:US4888402A

    公开(公告)日:1989-12-19

    申请号:US79056

    申请日:1987-07-29

    摘要: The invention relates to copolymers consisting of 30-100 mol %, relative to the total polymer, of structural units of the formulae I and II, the proportion of structural units of the formula I, relative to the proportion of I and II, being 5 to 95 mol %, ##STR1## in which R.sup.1 is C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 alkoxy or halogen, R.sup.2 is hydrogen or --COR.sup.3 and R.sup.3 is C.sub.1 -C.sub.20 alkyl, m is 1, 2 or 3, n is 0, 1, 2, 3 or 4 and the sum of m and n is not more than 5, and A is selected from the group of radicals consisting of halogen, cyano or structural units of the formulae III to VIII ##STR2## in which R.sup.4 and R.sup.6 independently of one another are hydroxyl, ##STR3## or glycidyl groups of the formula IXa or IXb ##STR4## R.sup.5 and R.sup.7 independently of one another are C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 -alkoxy or halogen, o and q independently of one another are 0, 1, 2 or 3, p and r independently of one another are 0, 1,2,3, 4 or 5, it being necessary for the totals o+p and q+4 to be not more than 5, R.sup.8 is hydrogen, C.sub.1 -C.sub.20 -alkyl, a glycidyl radical of formula IXa or a radical of formula VI, R.sup.9 is hydrogen, C.sub.1 -C.sub.20 -alkyl, cycloalkyl having 5-7 ring C atoms, phenyl, naphthyl or benzyl, R.sup.10 is hydrogen, C.sub.1 -C.sub.20 - or a glycidyl radical of the formula IXa, and the groups R.sup.11 and R.sup.12 independently of one another are hydrogen, C.sub.1 -C.sub.20 -alkyl, cycloalkyl having 5-7 ring C atoms, aryl or aralkyl which is substituted or unsubstituted or a glycidyl radical of the formula IXa, or, together with the common nitrogen atom, form a five-membered or six-membered, non-aromatic, heterocyclic ring, and R.sup.13 and R.sup.14 independently of one another are hydrogen or methyl, it being possible for the radicals R.sup.1 to R.sup.14 and A of a polymer molecule to be different, within the definitions given.The compounds are distinguished by high glass transition temperatures and good flexibility and can be employed as binders in photoresist systems. The representatives containing glycidyl groups can also be used as self-crosslinking epoxide resins.