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公开(公告)号：US11370907B2
公开(公告)日：2022-06-28
申请号：US16483128
申请日：2018-02-05
发明人： Paul Eustace , Brian McMahon
IPC分类号： C08L33/12 , C08K5/20 , B32B27/08 , B32B27/30 , C08F220/14
摘要： The invention relates to a composition with improved scratch and/or abrasion resistance and methods of their manufacture. Compositions for injection moulding, extrusion, (co)extrusion and/or thermoforming are described. The composition comprises (a) an acrylic (co)polymer and (b) a fatty acid amide. At least 30 wt % of the acrylic (co)polymer residues are residues of an alkacrylic acid or ester monomer such as methyl methacrylate and 0 to 70 wt % are residues of one or more other vinyl comonomers. A process for the production of a composition comprising the steps of melt blending the fatty acid amide with the acrylic (co)polymer or adding the fatty acid amide to the monomer during production of the acrylic (co)polymer. Use of the composition may be in injection moulding, extrusion or co-extrusion. Co-extruded laminates comprising a cap layer of the composition are also described.
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2.发明申请公开(公告)号：US20210283579A1
公开(公告)日：2021-09-16
申请号：US17181444
申请日：2021-02-22
摘要： A catalyst has a modified silica support and comprises a modifier metal, zirconium and/or hafnium, and a catalytic metal on the modified support. The catalyst has at least a proportion, typically, at least 25%, of modifier metal present in moieties having a total of up to 2 modifier metal atoms. The moieties may be derived from a monomeric and/or dimeric cation source.
A method of production: provides a silica support with isolated silanol groups with optional treatment to provide isolated silanol groups (—SiOH) at a level of-
3.发明授权公开(公告)号：US09890103B2
公开(公告)日：2018-02-13
申请号：US14700651
申请日：2015-04-30
摘要： A method of extracting (meth)acrylic acid from an aqueous reaction medium into an organic phase in contact therewith is described. The aqueous reaction medium is formed from at least one base catalyst and at least one dicarboxylic acid selected from maleic, fumaric, malic, itaconic, citraconic, mesaconic, and citramalic acid or mixtures thereof in aqueous solution and contains the base catalyzed decarboxylation products of the base catalyzed reaction. The method includes either the addition of at least one of the said dicarboxylic acids and/or a pre-cursor thereof to the aqueous reaction medium to enhance the solvent extraction of the (meth)acrylic acid into the organic solvent or maintaining the level of base catalyst to dicarboxylic acid and/or pre-cursor at a sub-stoichiometric level during the extraction process. The method extends to a process of producing (meth)acrylic acid, its esters and polymers and copolymers thereof.
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公开(公告)号：US09821304B2
公开(公告)日：2017-11-21
申请号：US14452101
申请日：2014-08-05
发明人： Trevor Huw Morris
CPC分类号： B01J49/60 , B01J49/50 , B01J49/53 , C07C67/343 , C07C67/60 , Y02P20/582 , C07C69/54
摘要： A process for the reactivation of an acidic ion exchange resin is described. The invention relates to the treatment of an at least partially deactivated resin which has been deactivated by contact with an impure ethylenically unsaturated acid or ester containing target impurities. The reactivation includes the step of contacting the at least partially deactivated resin with an alcohol to thereby increase the activity thereof. The invention extends to reactivating a resin deactivated by contact with an impure ethylenically unsaturated acid, ester or nitrile containing target impurities by contacting the at least partially deactivated resin with an alcohol and a carboxylic acid to thereby increase the activity thereof. A reactivated resin and a process for preparing and purifying an ethylenically unsaturated acid or ester of the following formula: R1—C(═(CH2)m)—COOR2 are also described.
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公开(公告)号：US09676938B2
公开(公告)日：2017-06-13
申请号：US12602611
申请日：2008-06-05
申请人： Mark Davies
发明人： Mark Davies
CPC分类号： C08L69/00 , C08J5/043 , C08J2369/00 , C08J2433/12 , C08J2455/00 , C08J2455/02 , C08L33/06 , C08L33/12 , C08L51/04 , C08L55/02 , C08L2207/04 , C08L2207/53 , C08L2666/02
摘要： A composition comprising a mixture of: (i) an aromatic polycarbonate; (ii) a graft copolymer including polyacrylonitrile; and, (iii) a non-crosslinked acrylic polymer having a weight average molecular weight (Mw) of less than or equal to 65,000 Daltons (Da).
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公开(公告)号：US09334227B2
公开(公告)日：2016-05-10
申请号：US12084575
申请日：2006-11-08
CPC分类号： C07C67/31 , B01J31/2414 , C07C51/09 , C07C67/38 , C07C59/08 , C07C59/01 , C07C69/68 , C07C69/675 , C07C69/67
摘要： A process for the carbonylation of ethylenically unsaturated compounds including vinyl esters and a process for the production of 3-hydroxy propanoate esters or acids. The process comprises reacting said compound with carbon monoxide in the presence of a source of hydroxyl groups and of a catalyst system. The catalyst system is obtainable by combining: (a) a metal of Group 8, 9 or 10 or a compound thereof: and (b) a bidentate ligand of general formula (I): X1(X2)-Q2-A-R—B-Q1-X3(X4).
摘要翻译： 包括乙烯基酯的烯属不饱和化合物的羰基化方法和用于制备3-羟基丙酸酯或酸的方法。 该方法包括在羟基源和催化剂体系的存在下使所述化合物与一氧化碳反应。 催化剂体系可以通过以下方法获得：（a）第8,9或10族金属或其化合物：和（b）通式（I）的二齿配体：X1（X2）-Q2-AR-B- Q1-X3（X4）。
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公开(公告)号：US08933179B2
公开(公告)日：2015-01-13
申请号：US13517958
申请日：2010-12-21
IPC分类号： C07C51/38 , C08F220/10 , C08F120/10 , C07C57/04 , C07C67/00 , C07C67/08 , C08F220/14
CPC分类号： C07C51/38 , C07C67/08 , C08F220/14 , C07C57/04 , C07C69/54 , C08F220/06
摘要： A method of producing a compound of formula (i): wherein R=H or CH3 the method comprising exposing a source of a compound of formula (ii) to reaction conditions of temperature and pressure: formula (ii) wherein R is defined as above wherein, when R=CH3, the source of a compound of formula (ii) is exposed to reaction conditions of temperature and pressure while being in a liquid phase.
摘要翻译： 一种制备式（ⅰ）化合物的方法：其中R = H或CH 3，该方法包括将式（ⅱ）化合物的源与温度和压力的反应条件相接触：式（ⅱ）其中R定义如上 其中当R = CH 3时，式（ⅱ）化合物的来源在温度和压力的反应条件下暴露于液相。
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公开(公告)号：US08907121B2
公开(公告)日：2014-12-09
申请号：US13140754
申请日：2009-12-11
摘要： A process for purifying methyl methacrylate (MMA) is described. The process involves contacting liquid MMA having impurities therein with a sulphonic acid resin, in the presence of formaldehyde or a suitable source of methylene or ethylene of formula I. R5 and R6 are independently selected from C1-C12 hydrocarbons or H; X is either O or S; n is an integer from, 1 to 100; and m is 1 or 2: The compound of formula I may be suitable source of formaldehyde.
摘要翻译： 描述了甲基丙烯酸甲酯（MMA）的纯化方法。 该方法包括在甲醛或合适的式I的亚甲基或亚乙基的存在下使其中含有杂质的液体MMA与磺酸树脂接触.R 5和R 6独立地选自C 1 -C 12烃或H; X是O或S; n是1至100的整数; 并且m为1或2：式I化合物可以是合适的甲醛源。
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公开(公告)号：US08785678B2
公开(公告)日：2014-07-22
申请号：US13515585
申请日：2010-12-15
IPC分类号： C07C67/38
摘要： A continuous process for carbonylation of ethylene in a liquid phase using carbon monoxide, a co-reactant and a suitable catalyst system, including: (i) forming a liquid phase comprising the co-reactant and a suitable catalyst system obtainable by combining: (a) a group VIII metal/compound; (b) a ligand of general formula (I) and c) optionally, a source of anions; wherein Q1 is optionally phosphorous; (ii) forming a gaseous phase in contact with the liquid phase by providing at least an ethylene gas input feed stream and a carbon monoxide gas input feed stream wherein the ethylene:CO molar ratio entering the liquid phase from the input feed streams is greater than 2:1; (iii) reacting ethylene with carbon monoxide in the presence of the co-reactant, and of the suitable catalyst system in the liquid phase; wherein the ethylene:CO gas molar ratio in the gaseous phase is between 20:1 and 1000:1 or wherein the molar ratio of ethylene:CO in the liquid phase is greater than 10:1.
摘要翻译： 一种使用一氧化碳，共反应物和合适的催化剂体系在液相中羰基化乙烯的连续方法，包括：（i）形成包含共反应物的液相和合适的催化剂体系，所述催化剂体系可通过以下方式获得：（a ）VIII族金属/化合物; （b）通式（I）的配体和c）任选的阴离子源; 其中Q1是任选的磷; （ii）通过提供至少一种乙烯气体输入进料流和一氧化碳气体输入进料流形成与液相接触的气相，其中从输入进料流进入液相的乙烯/ CO摩尔比大于 2：1; （iii）在共反应物和液相中合适的催化剂体系存在下使乙烯与一氧化碳反应; 其中所述气相中的乙烯:CO气体摩尔比为20:1至1000:1，或者其中液相中乙烯:CO的摩尔比大于10:1。
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公开(公告)号：US08592624B2
公开(公告)日：2013-11-26
申请号：US12992906
申请日：2009-05-15
CPC分类号： C07C67/343 , C07C51/50 , C07C67/62 , C07C57/04 , C07C69/54
摘要： A production process for the manufacture of ethylenically unsaturated acids or esters thereof is described. The process includes the steps of reaction of an alkanoic acid, or ester of an alkanoic acid, of the formula R3—CH2—COOR4 where R3 and R4 are each independently hydrogen or an alkyl group, in the presence of a catalyst system to produce an ethylenically unsaturated acid or ester product. The process is characterised in that the acid or ester product is subsequently contacted with a dienophile to thereby remove discolouration therefrom. An ethylenically unsaturated acid or ester crude product purification process is also described.
摘要翻译： 描述了用于制备烯属不饱和酸或其酯的制备方法。 该方法包括在催化剂体系的存在下使式R3-CH2-COOR4的链烷酸或链烷酸的酯反应的步骤，其中R 3和R 4各自独立地为氢或烷基，以产生 烯属不饱和酸或酯产物。 该方法的特征在于酸或酯产物随后与亲二烯体接触，从而除去其变色。 还描述了烯属不饱和酸或酯粗产物纯化方法。
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