Processes for preparing patterns for use in metal castings
    71.
    发明授权
    Processes for preparing patterns for use in metal castings 失效
    制备用于金属铸件的图案的方法

    公开(公告)号:US06710094B2

    公开(公告)日:2004-03-23

    申请号:US10322404

    申请日:2002-12-17

    申请人: Fred Sonnenberg

    发明人: Fred Sonnenberg

    IPC分类号: C08J918

    摘要: The present invention is directed to processes for forming styrenic polymers, and their related end uses. In particular, the present invention is directed to processes for preparing patterns for use in metal castings.

    摘要翻译: 本发明涉及形成苯乙烯聚合物的方法及其相关的最终用途。 特别地,本发明涉及用于制备用于金属铸件的图案的方法。

    Process for preparing heterodisperse chelating resins
    74.
    发明申请
    Process for preparing heterodisperse chelating resins 审中-公开
    制备异分散螯合树脂的方法

    公开(公告)号:US20020185443A1

    公开(公告)日:2002-12-12

    申请号:US10134717

    申请日:2002-04-29

    IPC分类号: C02F001/42

    CPC分类号: B01J45/00 C08F8/00 C08F212/00

    摘要: The object of the present invention is a process for preparing novel heterodisperse chelating resins having chelating functional groups, and their use for adsorbing metal compounds, in particular alkaline earth metals, heavy metal compounds and precious metal compounds, and also for extracting alkaline earth metals from saline solutions derived from alkali metal chloride electrolysis, and also in hydrometallurgy.

    摘要翻译: 本发明的目的是制备具有螯合官能团的新型异二分散螯合树脂的方法及其用于吸附金属化合物,特别是碱土金属,重金属化合物和贵金属化合物的用途,以及用于从 来自碱金属氯化物电解的盐溶液,也用于湿法冶金。

    Processes for forming styrenic copolymers
    75.
    发明授权
    Processes for forming styrenic copolymers 失效
    形成苯乙烯共聚物的方法

    公开(公告)号:US6360807B2

    公开(公告)日:2002-03-26

    申请号:US82840801

    申请日:2001-04-06

    摘要: Copolymers are formed by suspension polymerization of monomers, including one or more styrenic monomers, and one or more acrylic monomers. The monomers can be polymerized in the presence of polymeric seeds. The polymerization can be carried out in the presence of one or more blowing agents, producing polymers that can be expanded. The methods are useful, for example, in forming expandable polymeric particles. The expandable polymer particles are useful in processes such as forming patterns for lost foam molding techniques.

    摘要翻译: 共聚物通过包括一种或多种苯乙烯类单体和一种或多种丙烯酸类单体的单体的悬浮聚合形成。 单体可以在聚合物种子的存在下聚合。 聚合反应可以在一种或多种发泡剂的存在下进行,生成可以扩展的聚合物。 所述方法可用于例如形成可发性聚合物颗粒。 可膨胀聚合物颗粒可用于形成用于失去泡沫模塑技术的图案的工艺中。

    METAL ADHESIVE COMPOSITIONS AND METHOD OF BONDING ARTICLES THEREWITH
    76.
    发明申请
    METAL ADHESIVE COMPOSITIONS AND METHOD OF BONDING ARTICLES THEREWITH 失效
    金属粘合剂组合物及其结合方法

    公开(公告)号:US20020016429A1

    公开(公告)日:2002-02-07

    申请号:US08913977

    申请日:1997-12-18

    IPC分类号: C08F128/06

    摘要: An adhesive composition for metals including an unsaturated thiirane compound having at least one thiirane group bonded with a saturated carbon atom and having at least one olefin-type double bond is provided. The composition is useful for adhesion of noble metals or noble metal alloys.

    摘要翻译: 提供一种金属用粘合剂组合物,其包含具有与饱和碳原子键合的至少一种硫杂环丁烷并具有至少一种烯烃型双键的不饱和硫杂环丁烷化合物。 该组合物可用于贵金属或贵金属合金的粘合。

    AQUEOUS DISPERSIONS CONTAINING A MIXTURE OF COPOLYMERS AND THEIR USE IN BINDERS
    77.
    发明申请
    AQUEOUS DISPERSIONS CONTAINING A MIXTURE OF COPOLYMERS AND THEIR USE IN BINDERS 有权
    含有共混物混合物的水性分散体及其在粘合剂中的用途

    公开(公告)号:US20010056154A1

    公开(公告)日:2001-12-27

    申请号:US09272882

    申请日:1999-03-19

    IPC分类号: C08L033/00

    摘要: The present invention relates to aqueous solutions or dispersions of copolymers A) containing a hydroxy-functional, hydrophobic copolymer I) containing 30 to 85% by weight of (meth)acrylic acid esters having C1 to C18 hydrocarbon radicals in the alcohol portion, aromatic vinyl compounds and/or vinyl esters and 5 to 45% by weight of hydroxy-functional monomers; a hydroxy- and carboxy-functional, hydrophilic-hydrophobic copolymer II) containing 4 to 20% by weight of (meth)-acrylic acid esters having C1 to C18 hydrocarbon radicals in the alcohol portion, aromatic vinyl compounds and/or vinyl esters, 4 to 15% by weight of hydroxy-functional monomers and 0.8 to 3.0% by weight of acid-functional monomers; and optionally a hydroxy-functional hydrophobic copolymer III) containing 0 to 16% by weight of hydroxy- and/or non-functional (meth)acrylic acid esters or aromatic vinyl compounds, wherein 1) the sum of Ia), Ib), IIa), IIb) IIc) and IIIa) is 100%, based on the weight of these components, 2) copolymer A) has an acid number, based on solids, of 10 to 28 mg KOH/g substance, 3) the weight percent of monomers IIc) in monomer II) is less than 25% by weight and 4) the weight percent of hydroxy-functional monomers IIb) in copolymer II) is higher than the weight percent of hydroxy-functional monomers Ib) in copolymer I). The present invention also relates to a method of preparing these dispersions or solutions of copolymers A) and to their use in binder compositions with at least one crosslinking resin selected from aminoplast resins, blocked polyisocyanates and polyisocyanates containing free isocyanate groups.

    摘要翻译: 本发明涉及包含30至85重量%的在醇部分中具有C1至C18烃基的(甲基)丙烯酸酯的含羟基官能的疏水性共聚物I)的共聚物A)的水溶液或分散体,芳族乙烯基 化合物和/或乙烯基酯和5至45重量%的羟基官能单体; 含有4至20重量%的在醇部分中具有C1至C18烃基的(甲基)丙烯酸酯,芳香族乙烯基化合物和/或乙烯基酯的4〜20重量%的羟基和羧基官能的亲水疏水性共聚物II),4 至15重量%的羟基官能单体和0.8-3.0重量%的酸官能单体; 和任选的含有0至16重量%羟基和/或非官能(甲基)丙烯酸酯或芳族乙烯基化合物的羟基官能疏水性共聚物III),其中1)Ia),Ib),IIa ),IIb)IIc)和IIIa)为100%,基于这些组分的重量,2)共聚物A)具有基于固体的10至28mg KOH / g物质的酸值,3)重量百分数 单体II)中的单体IIc)小于25重量%,和4)共聚物II)中羟基官能单体IIb)的重量百分比高于共聚物I)中羟基官能单体Ib)的重量百分数。 本发明还涉及制备这些共聚物A)的这些分散体或溶液的方法,以及它们在粘合剂组合物中的用途,所述粘合剂组合物含有至少一种选自氨基塑料树脂,封端多异氰酸酯和含有游离异氰酸酯基团的多异氰酸酯的交联树脂。

    Resins
    78.
    发明授权
    Resins 失效
    树脂

    公开(公告)号:US4283499A

    公开(公告)日:1981-08-11

    申请号:US130923

    申请日:1980-03-17

    申请人: Thomas J. Howell

    发明人: Thomas J. Howell

    摘要: Ion exchange resins having improved physical stability and perfect bead count are prepared by a free-radical catalyzed polymerization of a monomer mixture utilizing certain peroxyester and peroxydicarbonate catalysts, followed by functionalizing the so prepared polymer.

    摘要翻译: 通过使用某些过氧化酯和过氧化二碳酸酯催化剂的单体混合物的自由基催化聚合,然后使如此制备的聚合物官能化,制备具有改善的物理稳定性和完美珠粒数的离子交换树脂。

    Ethylene-styrenic-alkyl vinyl terpolymer emulsions having particle size
of 100 to about 100 angstrom units
    79.
    发明授权
    Ethylene-styrenic-alkyl vinyl terpolymer emulsions having particle size of 100 to about 100 angstrom units 失效
    具有100至约100埃单位的乙烯 - 苯乙烯 - 烷基乙烯基三元共聚物乳液

    公开(公告)号:US3974119A

    公开(公告)日:1976-08-10

    申请号:US542307

    申请日:1975-01-20

    摘要: Stable emulsions of terpolymer particles are formed by polymerizing ethylene, a styrenic monomer such as styrene, and an alkyl vinyl monomer having from about 3 up to about 24 carbon atoms in an aqueous medium in the presence of a water soluble persulfate initiator, and a nonionic and/or anionic emulsifier. The resulting novel stable emulsions contain particles of terpolymer of the three monomers which will provide film coatings of increased flexibility and toughness. Furthermore, the emulsions have excellent compatibility when blended with conventional polish formulations.

    摘要翻译: 三元共聚物颗粒的稳定乳液通过在水溶性过硫酸盐引发剂的存在下,在水介质中聚合乙烯,苯乙烯类单体如苯乙烯和具有约3至约24个碳原子的烷基乙烯基单体形成,和非离子表面活性剂 和/或阴离子乳化剂。 所得到的新型稳定乳液含有三种单体的三元共聚物颗粒,这些颗粒将提供增加的柔韧性和韧性的薄膜涂层。 此外,当与常规抛光制剂混合时,乳液具有优异的相容性。

    Persulfate stabilized latices
    80.
    发明授权
    Persulfate stabilized latices 失效
    过硫酸酯稳定胶乳

    公开(公告)号:US3882070A

    公开(公告)日:1975-05-06

    申请号:US36325273

    申请日:1973-05-23

    申请人: ARCO POLYMERS INC

    发明人: CESKA GARY W

    摘要: A two-step process for preparing latices containing no emulsifier comprises (1) polymerizing a 30-50% portion of the monomers in aqueous emulsion containing 0.4-1.5 parts of persulfate and 0.5-2.0 parts of N-methylolacrylamide per 100 parts of monomer, and (2) adding the remaining portion of the monomers, 0.4-1.5 parts of persulfate, and 0.5-2.0 parts of Nmethylolacylamide per 100 parts of monomer and polymerizing to complete conversion. The latices have unusually good stability to mechanical shear and multivalent ions at low pH. Latices made with large amounts of persulfate but no N-methylolacrylamide are not stable; N-methylolacrylamide by itself has no capacity for stabilizing latices.

    摘要翻译: 制备不含乳化剂的胶乳的两步法包括(1)每100份单体聚合含有0.4-1.5份过硫酸盐和0.5-2.0份N-羟甲基丙烯酰胺的含水乳液的30-50%份单体, 和(2)每100份单体加入剩余部分单体,0.4-1.5份过硫酸盐和0.5-2.0份N-羟甲基酰胺,并进行聚合以完成转化。 胶乳在低pH下对机械剪切和多价离子具有非常好的稳定性。 用大量过硫酸盐但不含N-羟甲基丙烯酰胺制成的拉伸剂不稳定; N-羟甲基丙烯酰胺本身不具有稳定胶乳的能力。