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1.发明授权Process for preparation of polymer blends composed of polyoxymethylenes and of thermoplastic elastomers 失效由聚甲醛和热塑性弹性体组成的聚合物共混物的制备方法公开(公告)号：US07906594B2
公开(公告)日：2011-03-15
申请号：US11520415
申请日：2006-09-13
IPC分类号： C08L61/02
CPC分类号： C08L59/00 , C08L75/04 , Y10T428/31942 , C08L2666/20
摘要： The invention relates to a process for preparation of polymer blends comprising at least one polyoxymethylene and at least one thermoplastic elastomer, where the thermoplastic elastomer is micropelletized by a pelletizing process and the pellets obtained in a) are dispersed in the polyoxymethylene matrix via melting of the components and mixing of these at low shear forces, and also to the use of micropelletized thermoplastic elastomers for preparation of polyoxymethylenes with low formaldehyde emission.
摘要翻译： 本发明涉及一种制备包含至少一种聚甲醛和至少一种热塑性弹性体的聚合物共混物的方法，其中热塑性弹性体通过造粒工艺进行微胶体化，并且将a）中获得的颗粒分散在聚甲醛基体中， 组分和这些在低剪切力下的混合，以及使用微胶体化热塑性弹性体制备低甲醛释放的聚甲醛。
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公开(公告)号：US07001959B2
公开(公告)日：2006-02-21
申请号：US10700195
申请日：2003-11-03
IPC分类号： C08G65/00
CPC分类号： C08G2/38
摘要： Copolymers are described containing blocks of the structural repeat units of the formula I and blocks containing structural units of the formula II [—O—CH2—]x, (I) [—O—R1—], (II) where R1 is a divalent radical derived from a hydroxy-terminated aliphatic or cycloaliphatic oligomer or polymer which, where appropriate, has ether groups and/or carbonyloxy groups in the chain, and x is a whole number, at least 10. The copolymers may be used for producing moldings.
摘要翻译： 描述了包含式I的结构重复单元的嵌段和含有结构单元的嵌段的共聚物
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公开(公告)号：US06306940B1
公开(公告)日：2001-10-23
申请号：US09600945
申请日：2000-07-25
IPC分类号： C08K53492
CPC分类号： C08J3/226 , C08J2359/02 , C08J2459/00 , C08L59/04 , C09D17/00
摘要： Colorant concentrates made from free-flowing polyoxymethylene copolymer as carrier, 15-80% by weight of colorant, 2-15% by weight of nitrogen-containing stabilizer and 0-15% by weight of dispersion aid for coloring pellets or molding compositions made from polyoxymethylene (POM) and for producing colored injection moldings or colored POM extrudates. The products produced with this colorant preparation are particularly stable during processing and have very low formaldehyde emissions.
摘要翻译： 由自由流动的聚甲醛共聚物作为载体制成的着色剂浓缩物，15-80重量％的着色剂，2-15重量％的含氮稳定剂和0-15重量％的用于着色的颗粒或模制组合物的分散助剂 聚甲醛（POM）和用于生产着色注塑件或着色POM挤出物。 用这种着色剂制备生产的产品在加工过程中特别稳定，具有非常低的甲醛排放。
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公开(公告)号：US20080182966A1
公开(公告)日：2008-07-31
申请号：US12058197
申请日：2008-03-28
IPC分类号： C08G65/34
CPC分类号： C08G2/38
摘要： Copolymers are described containing blocks of the structural repeat units of the formula I and blocks containing structural units of the formula II [—O—CH2—]x, (I) [—O—R1—], (II) where R1 is a divalent radical derived from a hydroxy-terminated aliphatic or cycloaliphatic oligomer or polymer which, where appropriate, has ether groups and/or carbonyloxy groups in the chain, and x is a whole number, at least 10.The copolymers may be used for producing moldings.
摘要翻译： 描述共聚物，其包含式I的结构重复单元的嵌段和含有式II的结构单元的嵌段<？in-line-formula description =“In-line Formulas”end =“lead”→[ - O-CH （I）<？in-line-formula description =“In-line Formulas”end =“tail”？> <？in-line-formula- 公式描述=“在线公式”end =“lead”？> [ - OR 1 - ]，（II）<？in-line-formula description =“In-line Formulas”end = 其中R 1是衍生自羟基封端的脂族或脂环族低聚物或聚合物的二价基团，其在适当的情况下在链中具有醚基和/或羰氧基，x 是整数，至少为10.共聚物可用于生产模制品。
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公开(公告)号：US07301055B2
公开(公告)日：2007-11-27
申请号：US10451469
申请日：2001-11-19
CPC分类号： C08G2/24 , C07C45/002 , C07C45/38 , C07C45/82 , C07C45/85 , C07D323/06 , C08G2/08 , C08G2/10 , Y02P20/127 , C07C47/04
摘要： Process for removing methanol from formaldehyde-containing solutions. The present invention relates to a process for removing methanol from formaldehyde-containing solutions, with methanol being converted into formaldehyde dimethyl acetal by reactive distillation in the presence of an acidic fixed-bed catalyst, and the resultant mixture comprising methanol, formaldehyde dimethyl acetal and possibly other impurities being distilled off.
摘要翻译： 从含甲醛溶液中除去甲醇的方法。 本发明涉及一种从含甲醛溶液中除去甲醇的方法，甲醇通过反应蒸馏在酸性固定床催化剂存在下转化为甲醛二甲缩醛，所得混合物包含甲醇，甲醛二甲基缩醛和可能的 其他杂质被蒸馏掉。
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公开(公告)号：US07534922B2
公开(公告)日：2009-05-19
申请号：US11302290
申请日：2005-12-13
CPC分类号： C07C41/56 , C07C41/58 , Y02P20/127 , C07C43/303
摘要： A process for preparing acetals from aldehydes and alcohols is carried out by generating a reaction/distillation zone charged with an acidic fixed bed catalyst in a distillation column, feeding the aldehyde and the alcohol to the reaction/distillatlon zone and at least partly converting them to the acetal, heating the column bottom disposed below the reaction/distillation zone in order to at least partly evaporate the bottom's mixture and to establish a defined temperature in the reaction/distillation zone, feeding an extractant into a rectifying section of the column, disposed above the reaction/distillation zone and condensing a product having more than 90% by weight of acetal at the top of the column.
摘要翻译： 通过在蒸馏塔中生成装有酸性固定床催化剂的反应/蒸馏区，将醛和醇进料至反应/蒸馏区，并将其至少部分转化为 缩醛，加热设置在反应/蒸馏区下方的塔底，以便至少部分地蒸发底部的混合物并在反应/蒸馏区中建立限定的温度，将萃取剂进料到柱的精馏段中，其设置在 反应/蒸馏区，并将在塔顶部具有超过90重量％缩醛的产物冷凝。
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7.再颁专利公开(公告)号：USRE39182E1
公开(公告)日：2006-07-11
申请号：US09998276
申请日：2001-11-30
申请人： Karl-Friedrich Mück , Horst Röschert , Robert M. Gronner , Satyajit Verma , Michael G. Yearwood
发明人： Karl-Friedrich Mück , Horst Röschert , Robert M. Gronner , Satyajit Verma , Michael G. Yearwood
摘要： A process for the preparation of polyoxymethylene copolymers, wherein 1,3,5-trioxane is polymerized with generally known comonomers in the presence of a strong protonic acid initiator and in the presence of a formaldehyde dialkyl acetal, and wherein the initiator is dissolved in the formaldehyde dialkyl acetal before admixing to the trioxane and the comonomers.
摘要翻译： 一种制备聚甲醛共聚物的方法，其中1,3,5-三恶烷在强质子酸引发剂的存在下和在甲醛二烷基缩醛存在下与通常已知的共聚单体聚合，并且其中引发剂溶于 甲醛二烷基缩醛，然后与三恶烷和共聚单体混合。
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公开(公告)号：US07795357B2
公开(公告)日：2010-09-14
申请号：US10570643
申请日：2004-09-03
CPC分类号： C08G81/00 , C08G2/32 , C08L59/00 , C08L71/02 , C08L2666/16
摘要： Multiblock copolymers are described and contain the structural unit of formula I -A-O—R1—O—CO—(R2—CO—)m—X-D-X—(CO—R2)m—CO—X— (I), where A is a radical derived from a homo- or copolyoxymethylene, R1 is an alkylene radical-having at least two carbon atoms or a cycloalkylene radical, R2 is a direct carbon-carbon bond, or an alkylene, cycloalkylene, arylene, or aralkylene radical, X is selected from —O—, —S—, or —NH—, D is a divalent radical B which is a radical of a hydroxy-terminated, mercaptan-terminated, or amino-terminated polymer which derives from polyalkylene glycols, polyvinyl ethers, polyvinyl ether-alkene copolymers, polyvinyl esters, polyvinyl ester-alkene copolymers, polyvinyl alcohols, polyvinyl alcohol-alkene copolymers, polyvinylaromatics, polyacrylates, polymethacrylates, polyacetals, polycarbonates, polyesters, polyamides, polyimines, polyetherester elastomers, polyetheramide elastomers, polyalkadienes, polyurethanes, polyureas, polysiloxanes, or a triblock copolymer radical -PAO-B-PAO-, where B assumes one of the above meanings and PAO is a polyalkylene oxide radical, and m is 0 or 1. The multiblock copolymers may be used to produce moldings.
摘要翻译： 描述了多嵌段共聚物并含有式I-A-O-R 1 -O-CO-（R 2 -CO-）m -XDX-（CO-R 2）m -CO-X-I（I）的结构单元，其中A为 衍生自均聚或共聚甲醛的基团，R 1是具有至少两个碳原子的亚烷基或亚环烷基，R 2是直接碳 - 碳键或亚烷基，亚环烷基，亚芳基或亚芳基，选择X 由-O - ， - S-或-NH-取代，D是二价基团B，其是由聚亚烷基二醇衍生的羟基封端的，硫醇封端的或氨基封端的聚合物的基团，聚乙烯醚，聚乙烯醚 聚烯烃共聚物，聚乙烯基酯，聚乙烯基酯 - 烯烃共聚物，聚乙烯醇，聚乙烯醇 - 烯烃共聚物，聚乙烯芳烃，聚丙烯酸酯，聚甲基丙烯酸酯，聚缩醛，聚碳酸酯，聚酯，聚酰胺，聚亚胺，聚醚酯弹性体，聚醚酰胺弹性体，聚链烯二烯，聚氨酯，聚脲， 宝 溶解硅氧烷或三嵌段共聚物基团-PAO-B-PAO-，其中B为上述含义之一，而PAO为聚环氧烷基，m为0或1.多嵌段共聚物可用于制备模制品。
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