Finely-divided vinyl chloride-ethylene copolymers stabilized by
protection colloids
    1.
    发明授权
    Finely-divided vinyl chloride-ethylene copolymers stabilized by protection colloids 失效
    由保护胶体稳定的细分氯乙烯 - 乙烯共聚物

    公开(公告)号:US5124401A

    公开(公告)日:1992-06-23

    申请号:US149176

    申请日:1988-01-27

    IPC分类号: C08F214/06

    CPC分类号: C08F214/06

    摘要: A finely-divided, monomodal protective-colloid stabilized aqueous dispersion of a copolymer of at least 75% by weight of units of vinyl chloride and ethylene and optionally copolymerized with up to 25% by weight of units of additional monomers unsaturated at the ethylene bond and having a solids content of 45 to 70% by weight, characterized in that the dispersions are not partially flocculated, the polymer has a mean particle size of 150 to 500 nm measured as mean weight in a disc centrifuge and a polydispersion index of not more than 1.8 and less than 50% of the polymer particles are larger than 1,000 nm and a process for the preparation thereof using a single step radical polymerization of vinyl chloride, ethylene and optionally additional monomers such as vinyl esters useful as dispersion powders, adhesives, binders and concrete additives.

    摘要翻译: 一种细分散的单峰保护胶体稳定的水分散体,其为至少75重量%的氯乙烯和乙烯单元的共聚物,并且任选地与至多25重量%的在乙烯键不饱和的单体的单元共聚,和 固体含量为45〜70重量%,其特征在于分散体不部分絮凝,聚合物的平均粒度为150〜500nm,以盘式离心机的平均重量测定,多分散指数为 1.8和小于50%的聚合物颗粒大于1,000nm,并且使用氯乙烯,乙烯和任选的其它单体如乙烯基酯可以用作分散体粉末,粘合剂,粘合剂和粘合剂的单步自由基聚合制备方法 混凝土添加剂。

    Process for emulsion polymerization
    2.
    发明授权
    Process for emulsion polymerization 失效
    乳液聚合方法

    公开(公告)号:US4859751A

    公开(公告)日:1989-08-22

    申请号:US665787

    申请日:1984-10-29

    摘要: A novel process for the preparation of a readily dispersible, pourable dispersion powder comprising emulsion polymerizing in the presence of a free radial initiator a mixture of 1 to 50% by weight of ethylene and 99 to 50% by weight of an ethylenically unsaturated comonomer phase comprising at least one member of the group consisting of (a) 60 to 100% by weight of vinyl chloride, (b) 0 to 40% by weight of monoethylically unsaturated, oil-soluble monomers, (c) 0 to 10% by weight of monoethylenically unsaturated water-soluble monomers having functional groups and (d) 0 to 5% by weight of oil-soluble monomers that are monoethylenically unsaturated and have functional groups or are multiple ethylenically unsaturated and optionally a protective colloid and/or emulsifier at an ethylene pressure of 10 to 150 bar to obtain an aqueous dispersion of a vinyl chloride-ethyelene copolymer, optionally adding to the aqueous dispersion (e) 0 to 40% by weight, based on the VCE-polymer, of at least one water-soluble substance having a T.sub.g .gtoreq.60.degree. C., (f) 0 to 1% by weight, based on the VCE-polymer, of an antifoaming agent, and (g) 0 to 30% by weight, based on the total weight of polymer constituents, of a finely divided antiblocking agent and spray drying or freeze drying the aqueous dispersion to obtain the readily redispersible, pourable powder of a vinyl chloride-ethylene copolymer and the powder produced by the said process and improved coatings, paints, glues and adhesives containing the said redispersible powder.

    摘要翻译: 一种用于制备容易分散的可倾倒分散粉末的新方法,其包括在自由径向引发剂存在下,在1-50重量%的乙烯和99-50重量%的烯键式不饱和共聚单体相的混合物中聚合乳液,该混合物包含 由(a)60至100重量%的氯乙烯组成的组中的至少一个,(b)0至40重量%的单乙基不饱和的油溶性单体,(c)0至10重量% 具有官能团的单烯属不饱和水溶性单体和(d)0-5重量%的单烯属不饱和和具有官能团或具有多烯属不饱和和任选的乙烯压力保护胶体和/或乳化剂的油溶性单体 10至150巴,以获得氯乙烯 - 乙烯共聚物的水分散体,任选地将水分散体(e)加入至少一种基于VCE-聚合物的0至40重量% 基于VCE聚合物,消泡剂的Tg> = 60℃,(f)0〜1重量%的水溶性物质,和(g)0〜30重量%,基于 聚合物组分的总重量,细碎的防粘连剂,并喷雾干燥或冷冻干燥该水性分散体以获得氯乙烯 - 乙烯共聚物的容易再分散的可倾倒粉末和由所述方法生产的粉末和改进的涂料,油漆 ,含有所述可再分散粉末的胶水和粘合剂。

    Novel adhesive dispersions
    3.
    发明授权
    Novel adhesive dispersions 失效
    新型粘合剂分散体

    公开(公告)号:US4997879A

    公开(公告)日:1991-03-05

    申请号:US180378

    申请日:1988-04-12

    CPC分类号: C08F218/04 C08F210/02

    摘要: Novel pressure-sensitive aqueous adhesive dispersions comprising 40 to 65% by weight, based on the dispersion weight, of a copolymer produced by radical emulsion polymerization of ethylene, vinyl esters of saturated carboxylic acids of 2 to 12 carbon atoms, ethylenically unsaturated carboxylic acids, ethylenically unsaturated hydroxyalkyl functional compounds, optionally present (meth)acrylic acid esters with alkyl of 4 to 12 carbon atoms and optionally present mono- or poly-ethylenically unsaturated compounds having a second order transition temperature of -20.degree. to -60.degree. C. and a K value of 50 to 180, characterized in that the copolymer was obtained by polymerization of(a) 10-45% by weight of ethylene(b) 0-25% by weight of acrylic ester(s)(c) 40-89% by weight of vinyl ester(s)(d) 0.5-4% by weight of ethylenically unsaturated carboxylic acids(e) 0.5-10% by weight of ethylenically unsaturated hydroxyalkyl-functional compounds(f) 0-0.3% (meth)acrylamide(g) 0-10% ethylenically unsaturated sulfates and sulfonates or polyethylenically unsaturated compounds, in the presence of 1 to 6% by weight, based on the comonomer mixture, of an emulsifier.

    摘要翻译: 新型压敏水性粘合剂分散体,其包含通过乙烯的自由基乳液聚合,2-12个碳原子的饱和羧酸的乙烯基酯,烯键式不饱和羧酸,基于分散体重量的40至65重量% 烯键式不饱和羟烷基官能化合物,任选存在的具有4至12个碳原子的烷基的(甲基)丙烯酸酯和任选的具有-20°至-60℃的二级转变温度的单或多烯属不饱和化合物,以及 K值为50〜180,其特征在于,共聚物通过(a)10-45重量%的乙烯(b)0-25重量%的丙烯酸酯(c)40-89 乙烯基酯的重量%(d)0.5-4重量%的烯键式不饱和羧酸(e)0.5-10重量%的烯键式不饱和羟烷基官能化合物(f)0-0.3%(甲基)丙烯酰胺 (g)0-10%烯属 不饱和硫酸盐和磺酸盐或多烯属不饱和化合物,在1至6重量%的存在下,基于共聚单体混合物,乳化剂。

    Process for emulsion polymerization of graft copolymers
    4.
    发明授权
    Process for emulsion polymerization of graft copolymers 失效
    接枝共聚物乳液聚合方法

    公开(公告)号:US5187233A

    公开(公告)日:1993-02-16

    申请号:US490729

    申请日:1990-03-08

    摘要: A process is provided for the production of a graft copolymer by means of emulsion polymerization. The graft base used is a sulfonate group-containing vinyl ester/ethylene latex which is stabilized exclusively by an anionic emulsifier (CMC.gtoreq.0.5% by weight in H.sub.2 O) and is grafted, preferably with vinyl chloride, without further addition of emulsifier or protective colloid. The graft copolymers according to the invention have good water resistance and very good thermoplastic processability. They are useful as impact modifiers and for the production of articles, such as, soft to semi-hard moldings.

    摘要翻译: 提供了通过乳液聚合制备接枝共聚物的方法。 所使用的接枝基是含有磺酸基的乙烯基酯/乙烯胶乳,其仅由阴离子乳化剂(CMC> / = 0.5重量%,在H 2 O中)稳定,并且优选用氯乙烯接枝,而不进一步加入乳化剂或 保护胶体。 根据本发明的接枝共聚物具有良好的耐水性和非常好的热塑性加工性。 它们可用作抗冲击改性剂和用于生产物品,如软硬半成品。

    Process for the manufacture of aqueous copolymer dispersions and their
use
    5.
    发明授权
    Process for the manufacture of aqueous copolymer dispersions and their use 失效
    制备含水共聚物分散体及其用途的方法

    公开(公告)号:US4900777A

    公开(公告)日:1990-02-13

    申请号:US202225

    申请日:1988-06-03

    CPC分类号: C08F214/06 C08F14/06

    摘要: Aqueous copolymer dispersions suitable for use in the manufacture of adhesives or as binding agents or as coating substances are produced by the emulsion polymerization of from 1 to 50% by weight of ethylene and from 99 to 50% by weight of vinyl monomers. With the process of the invention, in which, as vinyl monomers, vinyl chloride and, if desired, other ethylenically-unsaturated monomers, for example esters, are used, a higher ethylene content in the copolymer can be obtained at a lower pressure than hitherto. For this purpose, the greater part of the vinyl monomers is metered in and, in addition, an inert organic substance is used.

    摘要翻译: 适用于制造粘合剂或粘合剂或作为涂层物质的水性共聚物分散体是通过1至50重量%的乙烯和99至50重量%的乙烯基单体的乳液聚合制备的。 使用本发明的方法,其中作为乙烯基单体,如果需要,使用其它烯属不饱和单体(如酯)作为乙烯基单体,可以在比迄今为止更低的压力下获得共聚物中更高的乙烯含量 。 为此,大部分乙烯基单体被计量,并且另外使用惰性有机物质。

    Novel polymerization process
    6.
    发明授权
    Novel polymerization process 失效
    新型聚合工艺

    公开(公告)号:US4847341A

    公开(公告)日:1989-07-11

    申请号:US100469

    申请日:1987-09-24

    摘要: A process for the preparation of finely-divided aqueous copolymer dispersions with a solids content of 10 to 70% by weight, based on the dispersion, comprising emulsion polymerizing (a) 1 to 50% by weight of ethylene and (b) 99 to 50% by weight of at least two ethylenically unsaturated comonomers in the presence of a free-radial initiator and at least one member of the group consisting of emulsifier and a protective colloid and optionally present conventional adjuvants, the ethylenically unsaturataed comonomers being (b1) 79.5 to 99.5% by weight of vinyl chloride, (b2) 0 to 15% by weight of ethylenically unsaturated oil-soluble monomers, (b3) 0.5 to 10% by weight of ethylenically unsaturated, functional, water-soluble monomers and (b4) 0 to 5% by weight of oil-soluble monomers monoethylenically unsaturated and containing functional groups or polyethylenically unsaturated and mixtures thereof with the proviso that the monomers of (b2) and (b4) are copolymerizable with (a) and (b1), the comonomers being initially present in 1 to 40% by weight and the content of the water-soluble monomers being 1 to 35% by weight of the comonomers phase initially present and the rest of component (b) being added as an aqueous emulsion during polymerization and the polymerization is effected at 0.degree. to 120.degree. C. with an ethylene pressure of 10 to 150 bar which is built up at the latest by the point in time at which polymerization of the initial material is complete.

    摘要翻译: 一种制备基于分散体的固含量为10-70重量%的细分的含水共聚物分散体的方法,包括将(a)1-50重量%的乙烯和(b)99-50的乳液聚合 在自由 - 径向引发剂和至少一种由乳化剂和保护胶体和任选存在的常规助剂组成的组中的至少一种成分的情况下,至少两种烯键式不饱和共聚单体的重量%,所述烯属不饱和共聚单体为(b1)79.5至 99.5重量%的氯乙烯,(b2)0〜15重量%的烯属不饱和油溶性单体,(b3)0.5〜10重量%的烯属不饱和官能水溶性单体和(b4)0〜 5重量%的油溶性单体单烯属不饱和和含有官能团或多烯属不饱和的和其混合物,条件是(b2)和(b4)的单体可与(a)和(b1)共聚, 共聚单体最初以1至40重量%存在,并且水溶性单体的含量为初始存在的共聚单体相的1至35重量%,组分(b)的其余部分在聚合期间以水乳液形式加入, 聚合反应在0至120℃下进行,乙烯压力为10至150巴,最终在初始材料的聚合完成的时间点内建成。

    Novel aqueous dispersions
    7.
    发明授权
    Novel aqueous dispersions 失效
    新型水性分散体

    公开(公告)号:US4748202A

    公开(公告)日:1988-05-31

    申请号:US907036

    申请日:1986-09-12

    CPC分类号: C08F214/06 C08F265/04

    摘要: A process for the production of an emulsion polymerization aqueous copolymer dispersion with a solids contents of 45-55% by weight of(a) 75 to 95 parts by weight of acrylic acid and/or methacrylic acid alkyl esters of 1 to 10 carbon atoms of which 20 to 80% by weight have a water solubility of at most 2 g/l and 20 to 80% by weight a water solubility of at least 10 g/l(b) 5 to 25 parts by weight of a mixture of ethylenically-unsaturated, functional and water-soluble monomers, 25 to 100% by weight thereof consisting of unsaturated carboxylic acids.(c) 500 to 1700 parts by weight of a mixture of 70 to 100% by weight of vinyl chloride, 0 to 30% by weight of at least one vinyl ester of saturated carboxylic acids of 2 to 18 carbon atoms and 0 to 1.5% by weight of a poly-unsaturated monomer which possesses a water solubility of at most 5 g/l, and(d) Ethylene with radical initiators in the presence of emulsifiers and optionally other common additives, characterized in that (1) the components (a) and (b) together with 500 to 1000 parts by weight of water and 0.5 to 10 parts by weight of emulsifier are charged at a pH value of 2 to 4 in an autoclave, and their polymerization is begun at a temperature of 50.degree. to 80.degree. C. by addition of an initiator, (2) the component (c) is metered in in the form of an aqueous emulsion as soon as components (a) and (b) are reacted at least 50% and at most 99%, (3) during the metering phase a pH value of 4.5 to 6.5 is maintained, (4) an ethylene pressure of 40 to 80 bars is built up at the time indicated in (2) and (5) before start of polymerization or at the latest at the time indicated in (2) 10 to 50 parts of an inert organic substance having a water solubility of 10.sup.-3 to 200 g/l and a molecular weight of at most 1000 are added.

    摘要翻译: 一种制备乳液聚合水性共聚物分散体的方法,其固体含量为(a)75-95重量份的丙烯酸和/或甲基丙烯酸烷基酯的1-50个碳原子数为45-55重量% 其中20至80重量%的水溶解度为至多2g / l和20至80重量%,水溶解度为至少10g / l(b)5至25重量份的烯属 - 不饱和的,官能的和水溶性的单体,25-100%重量的不饱和羧酸。 (c)500至1700重量份的70至100重量%的氯乙烯的混合物,0至30重量%的至少一种2至18个碳原子的饱和羧酸的乙烯基酯和0至1.5重量% 重量的水溶解度至多为5g / l的多不饱和单体,和(d)在乳化剂和任选的其它常用添加剂存在下,具有自由基引发剂的乙烯,其特征在于(1)组分(a )和(b)与500〜1000重量份的水和0.5〜10重量份的乳化剂在高压釜中以2〜4的pH值加入,并且在50〜 80℃,通过加入引发剂,(2)组分(a)和(b)一旦反应至少50%且至多99%,则组分(c)以水乳液形式计量。 ,(3)在计量阶段期间,pH值保持在4.5至6.5,(4)在indic the时建立了40至80巴的乙烯压力 在(2)和(5)开始聚合之前,或最迟在(2)表示的时间将10至50份水溶性为10-3-200g / l的惰性有机物质和分子 加入最多1000的重量。

    Preparation of aqueous N-methylol amide solutions
    8.
    发明授权
    Preparation of aqueous N-methylol amide solutions 失效
    N-羟甲基酰胺水溶液的制备

    公开(公告)号:US4567297A

    公开(公告)日:1986-01-28

    申请号:US659711

    申请日:1984-10-11

    摘要: A process for the preparation of aqueous solutions of N-methylol-acrylamide and/or N-methylol-methacrylamide comprising forming a homogeneous mixture of aqueous solution of formaldehyde and aqueous solution of acrylamide and/or methacrylamide and passing the homogeneous mixture through an ion-exchange resin bed based on a styrene-divinylbenzene polymer with tertiary amino groups at an elevated temperature so that the reaction is at least 80% theoretically completed when the mixture issues from the bed, characterized in that the ion exchanger is initially in the form of its free base, the initial temperature and velocity of the homogeneous mixture being adjusted to maintain the bed temperature between 35.degree. and 60.degree. C. and continuing the passage of the homogeneous mixture through the exchanger bed until the bed temperature drops and/or the pH of the exiting solution is below 8.

    摘要翻译: 制备N-羟甲基 - 丙烯酰胺和/或N-羟甲基 - 甲基丙烯酰胺的水溶液的方法,包括形成甲醛水溶液和丙烯酰胺和/或甲基丙烯酰胺的水溶液的均匀混合物,并使均匀混合物通过离子交换树脂, 基于具有叔氨基的苯乙烯 - 二乙烯基苯聚合物的交换树脂床在升高的温度下使得当所述混合物从所述床发出时,所述反应在理论上达到至少80%,其特征在于,所述离子交换剂最初为其 游离碱,均匀混合物的初始温度和速度被调节以保持床温度在35℃和60℃之间,并且使均匀混合物继续通过交换器床直到床温度下降和/或pH 现有的解决方案低于8。