Production of copolymer powders from maleic anhydride and 1-olefins
    2.
    发明授权
    Production of copolymer powders from maleic anhydride and 1-olefins 失效
    从马来酸酐和1-烯烃制备共聚物粉末

    公开(公告)号:US4048422A

    公开(公告)日:1977-09-13

    申请号:US647502

    申请日:1976-01-08

    摘要: An improved process for the production of powders of maleic acid anhydride/1-olefin copolymers by suspension polymerization in the presence of special dispersion agents which are obtained by the reaction of a copolymer of maleic acid anhydride and a 1-olefin with an aliphatic monohydric alcohol or an aliphatic monoamine or a mixture thereof, at least 30 mol % of the anhydride groups being esterified to semi-esters or amidated to semi-amides. The copolymer powders obtained have a surprisingly narrowparticle size distribution and can be used without grinding or sifting as reactive fillers for natural and synthetic rubbers. They also can be used for the production of paper coating agents as they dissolve easily and without residue in alkalis, ammonia or amines.

    摘要翻译: 在马来酸酐与1-烯烃的共聚物与脂族一元醇反应得到的特殊分散剂存在下,通过悬浮聚合制备马来酸酐/ 1-烯烃共聚物粉末的改进方法 或脂族单胺或其混合物,至少30mol%的酸酐基团被酯化成半酯或半酰胺化。 获得的共聚物粉末具有令人惊讶的窄粒度分布,并且可以在不用作天然和合成橡胶的反应性填料的研磨或筛分下使用。 它们也可用于生产纸张涂层剂,因为它们容易溶解,在碱,氨或胺中没有残留物。

    Process for the production of a substantially equimolecular copolymer of
maleic acid anhydride and diisobutylene
    3.
    发明授权
    Process for the production of a substantially equimolecular copolymer of maleic acid anhydride and diisobutylene 失效
    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

    公开(公告)号:US4151336A

    公开(公告)日:1979-04-24

    申请号:US869043

    申请日:1978-01-13

    摘要: 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.

    摘要翻译: 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。

    Method of preventing the formation of contact spots on photographic
materials
    7.
    发明授权
    Method of preventing the formation of contact spots on photographic materials 失效
    防止在照相材料上形成接触斑的方法

    公开(公告)号:US4248963A

    公开(公告)日:1981-02-03

    申请号:US908570

    申请日:1978-05-22

    CPC分类号: G03C1/7614 Y10S430/162

    摘要: In a process for preventing the contact spots formed by contact of the back coating of photographic material with the emulsion side an aqueous polymer dispersion obtained by polymerization of halogen-free compounds and polyvinyl alcohol or partially acetylated polyvinyl alcohol in the presence of an anionic emulsifier are added to the casting composition applied as outermost back coating and/or as uppermost layer.

    摘要翻译: 在防止由感光材料背面与乳剂侧接触而形成的接触点的方法中,通过在阴离子乳化剂存在下通过无卤素化合物和聚乙烯醇或部分乙酰化聚乙烯醇的聚合得到的聚合物水分散体是 添加到作为最外背涂层施涂的铸塑组合物和/或作为最上层。

    Pigment preparations
    9.
    发明授权
    Pigment preparations 失效
    颜料制剂

    公开(公告)号:US4230812A

    公开(公告)日:1980-10-28

    申请号:US3582

    申请日:1979-01-15

    摘要: Pigment preparations containing 2-70 % by weight, relative to the total preparation, of an inorganic or organic pigment dispersed in a solution of 10 to 49% by weight, relative to the total preparation, of a water-insoluble copolymer in an organic solvent, the copolymer containing 40-60% by weight of acrylic acid ethyl ester, 30-50% by weight of methacrylic acid methyl ester and 5-15 % by weight of acrylic acid hydroxyethyl and/or hydroxypropyl ester or methacrylic acid hydroxyethyl and/or hydroxypropyl ester and being prepared at 50.degree.-170.degree. C. in the presence of 0.5-5.0% by weight, relative to the sum of the monomers, of an organic per-compound or an azo compound which supplies free radicals at 50.degree.-170.degree. C., in an organic solvent, and their use for pigmenting dressing agents for leather and imitation leathers.

    摘要翻译: 相对于总制剂,相对于总制剂,分散在相对于总制剂的10至49重量%的溶液中的无机或有机颜料的含有2-70重量%的颜料组合物在有机溶剂中的水不溶性共聚物 含有40-60%(重量)丙烯酸乙酯,30-50%(重量)甲基丙烯酸甲酯和5-15%(重量)丙烯酸羟乙酯和/或羟丙基酯或甲基丙烯酸羟乙酯和/或 羟基丙基酯,并在相对于单体总和为0.5-5.0重量%的存在下在50-170℃下制备在50℃下提供自由基的有机全化合物或偶氮化合物, 170℃,在有机溶剂中,以及它们用于皮革和仿皮革着色剂的用途。

    Polyamines containing urea groups
    10.
    发明授权
    Polyamines containing urea groups 失效
    含尿素的聚胺

    公开(公告)号:US4348514A

    公开(公告)日:1982-09-07

    申请号:US156832

    申请日:1980-06-05

    CPC分类号: D21H17/56 C08G73/0206

    摘要: Non-crosslinking, water-soluble polyamines which can be obtained by reacting(A) basic polyureas which have been prepared by condensation of ureas with polyamines containing at least three amino groups, of which at least one is a tertiary amino group, or with mixtures of these polyamines with aliphatic, araliphatic, cycloaliphatic or heterocyclic polyamines containing two primary or two secondary amino groups or one primary or one secondary amino group, and optionally with .omega.-aminocarboxylic acids containing at least three carbon atoms, or lactams thereof,(B) polyalkylenepolyamines of the general formula ##STR1## in which R denotes H or CH.sub.3, the indices y are in each case identical or different and denote the number 0 or 1 andx denotes a number from 4 to 2,500,or mixtures of these polyalkylenepolyamines with amines of the same general formula, but in whichx denotes a number from 1 to 3, and(C) compounds which are polyfunctional towards amino groups, are used as agents for increasing the retention of fibres, fillers and pigments, for accelerating the drainage in the production of paper and for working up effluents from paper machines by filtration, sedimentation and flotation.

    摘要翻译: 非交联性水溶性多胺,其可以通过使(A)通过脲与缩醛反应制备的碱性聚脲与至少三个氨基的多胺(其中至少一个是叔氨基)或与混合物 这些多胺与含有两个伯或仲仲氨基或一个伯或仲仲氨基以及任选含有至少三个碳原子的ω-氨基羧酸或其内酰胺的脂族,芳脂族,脂环族或杂环多胺,(B) 通式为“IMAGE”的聚亚烷基多胺,其中R表示H或CH 3,指数y在各自的情况下相同或不同,表示数字0或1,x表示4至2,500的数,或这些聚亚烷基多胺与胺的混合物 具有相同的通式,但其中x表示1至3的数,和(C)对于氨基具有多官能性的化合物,用作增加剂 考虑到纤维,填料和颜料的保留,用于加速纸张生产中的排水和通过过滤,沉淀和浮选处理造纸机的废水。