公开(公告)号：US09663678B2

公开(公告)日：2017-05-30

申请号：US14408183

申请日：2012-08-10

申请人： Alistair Mclennan ,  Linlin Miao

发明人： Alistair Mclennan ,  Linlin Miao

IPC分类号： C09D131/04 ,  C09D7/12 ,  C09D5/02

CPC分类号： C09D131/04 ,  C08L2205/025 ,  C08L2205/03 ,  C09D5/027 ,  C09D7/65 ,  C08L29/04

摘要： A coating composition comprises an emulsion copolymer of a monomer mixture comprising at least one vinyl ester, ethylene, and a stabilizing system. The stabilizing system comprises at least one polyvinyl alcohol. The monomer mixture comprises from 60 to 82 wt % of the at least one vinyl ester and from 18 to 40 wt % of the ethylene based on the total weight of monomers in the mixture. The stabilizing system comprises from 1 to 5 wt % of at least one medium molecular weight polyvinyl alcohol and at least one low molecular weight polyvinyl alcohol. The emulsion copolymer has a solids content from 50% to 60% and a viscosity ranges from 500 to 6,000 mPa·s. and a formaldehyde content of less than 10 ppm as determined by HPLC.

公开(公告)号：US09624622B2

公开(公告)日：2017-04-18

申请号：US13811956

申请日：2011-08-12

申请人： Harmin Müller ,  Paul Stuart Wormald ,  Paolo Bavaj

发明人： Harmin Müller ,  Paul Stuart Wormald ,  Paolo Bavaj

IPC分类号： D06N7/00

CPC分类号： D06N7/0063 ,  D06N7/0073 ,  D06N2203/042 ,  D06N2209/067 ,  Y10T428/23921

摘要： Disclosed are carpet products comprising at least one flexible substrate and at least one coating and/or adhesive layer associated with the at least one flexible substrate. The coating and/or adhesive layer is formed from an aqueous composition comprising: A) an emulsifier-stabilized vinyl acetate/ethylene (VAE) emulsion copolymer dispersion and B) at least one particulate filler material selected from particulate inorganic compounds and particulate plastic material. The vinyl acetate/ethylene copolymer in the copolymer dispersion has a selected ethylene content or glass transition temperature. It is also preferably substantially free of cross-linkable co-monomer moieties which generate formaldehyde upon curing and preferably has a particle size, dw, ranging from about 50 to about 500 nm. The carpet product is substantially free of polyvinyl chloride and bitumen and exhibits a Class B1 flame-retardancy in accordance with DIN 4102-14, corresponding to a critical heat flux of ≧about 4.5 kW/m2.

公开(公告)号：US09574061B2

公开(公告)日：2017-02-21

申请号：US14359223

申请日：2012-11-23

申请人： Ticona GMBH

发明人： Michael Haubs ,  Klaus Kurz ,  Jurgen Lingnau

IPC分类号： C07D323/04 ,  C08J11/28 ,  C07D323/06 ,  C08G2/10 ,  C08G2/36 ,  C07C47/04 ,  C08G65/30 ,  C08G65/16 ,  C08G65/06 ,  C08J11/16

CPC分类号： C07D323/06 ,  C07C47/04 ,  C07D323/04 ,  C08G2/10 ,  C08G2/36 ,  C08G65/06 ,  C08G65/16 ,  C08G65/30 ,  C08G2650/62 ,  C08J11/16 ,  C08J11/28 ,  C08J2359/02 ,  Y02P20/125

摘要： The present invention relates to a process for producing cyclic acetal comprising i) preparing a reaction mixture comprising a) a formaldehyde source in a liquid medium and b) a catalyst; ii) converting the formaldehyde source into cyclic acetals, wherein the final conversion of said formaldehyde source to said cyclic acetal is greater than 10% on basis of the initial formaldehyde source.

摘要翻译： 本发明涉及一种制备环状缩醛的方法，其包括：i）制备反应混合物，该反应混合物包含：a）甲醛源在液体介质中，b）催化剂; ii）将甲醛源转化为环状缩醛，其中基于初始甲醛源，所述甲醛源与所述环状缩醛的最终转化率大于10％。

公开(公告)号：US09567261B2

公开(公告)日：2017-02-14

申请号：US14396506

申请日：2012-04-25

申请人： Alistair McLennan ,  Hendrikus C. M. Van Boxtel

发明人： Alistair McLennan ,  Hendrikus C. M. Van Boxtel

IPC分类号： C04B24/26 ,  C04B26/04 ,  C08F22/10 ,  C08F4/40 ,  C08F218/08 ,  C04B103/00 ,  C04B111/00 ,  C04B111/62 ,  C08F210/02

CPC分类号： C04B24/2623 ,  C04B26/04 ,  C04B2103/0057 ,  C04B2111/00637 ,  C04B2111/62 ,  C08F4/40 ,  C08F22/10 ,  C08F210/02 ,  C08F218/08 ,  Y10T428/2982 ,  C08F2/30 ,  C08F2500/17

摘要： A vinyl ester/ethylene copolymer is prepared by emulsion copolymerization of a monomer mixture comprising at least one vinyl ester, ethylene, a stabilizing system comprising polyvinyl alcohol and a free radical redox polymerization initiator system comprising i-butyl hydroperoxide as an oxidizing agent and at least one of a sulfuric acid-based compound and erythorbic acid or a salt thereof as a reducing agent. The monomer mixture comprises from 70 wt % to 95 wt % of said at least one vinyl ester and from 5 wt % to 30 wt % of ethylene based on the total weight of monomers in said mixture and the copolymer has a formaldehyde content of less than 5.0 ppmw as determined by ISO-15173.

摘要翻译： 乙烯基酯/乙烯共聚物通过包含至少一种乙烯基酯，乙烯，包含聚乙烯醇的稳定体系和包含作为氧化剂的叔丁基过氧化氢的自由基氧化还原聚合引发剂体系的单体混合物的乳液共聚制备，并且至少 作为还原剂的硫酸类化合物和异抗坏血酸或其盐之一。 所述单体混合物包含70重量％至95重量％的所述至少一种乙烯基酯和5重量％至30重量％的乙烯，基于所述混合物中单体的总重量，并且所述共聚物的甲醛含量小于 5.0 ppmw，由ISO-15173确定。

公开(公告)号：US20220332942A1

公开(公告)日：2022-10-20

申请号：US17859367

申请日：2022-07-07

申请人： Celanese Sales Germany GmbH

发明人： Dirk Zierer ,  Patrick Nickolay ,  Tim Feuerstack

IPC分类号： C08L67/02 ,  C08J5/04 ,  C08K3/04

摘要： A polymer composition is described well suited for being combined with relatively short fibers. The fibers, for instance, can have a mean fiber length of less than 1,000 microns, such as less than 700 microns, such as less than 500 microns. The polymer formulation allows for intimate mixing with the fibers without having to use a sizing agent. In one embodiment, the composition contains a polybutylene terephthalate polymer combined with a thermoplastic polymer having lower crystallinity.

公开(公告)号：US10731027B2

公开(公告)日：2020-08-04

申请号：US15087036

申请日：2016-03-31

申请人： Celanese Sales Germany GmbH

发明人： Kirsten Markgraf ,  Lowell Larson

IPC分类号： C08K7/14 ,  C08G18/56 ,  C08G18/76 ,  C08K5/3492 ,  C08L61/02 ,  C08K5/29 ,  C08L59/02

摘要： The present invention relates to a molding composition, a process for manufacturing the molding composition, and molded parts obtainable from the molding composition. The molding composition can contain at least one polyoxymethylene having terminal OH-groups, at least one polyisocyanate coupling agent, at least one reinforcing fiber, and at least one formaldehyde scavenger. The moldings produced from the molding composition are distinguished by their improved mechanical properties while having low formaldehyde emissions and excellent tensile strength while having a good flex fatigue and creep performance.

公开(公告)号：US09902785B2

公开(公告)日：2018-02-27

申请号：US14366216

申请日：2012-12-19

申请人： CELANESE EMULSIONS GMBH

发明人： Lizandra Belmonte Rodrigues De Castro ,  Thomas Fichtner ,  Kerstin Gohr ,  Stephan Krieger

IPC分类号： C08F2/22 ,  C08F2/00 ,  C08F220/18 ,  C08F263/04 ,  C08F210/02 ,  C08F2/24 ,  C09D151/00 ,  C08F2/26 ,  C08F2/30 ,  C09D133/08 ,  C09D133/12

CPC分类号： C08F2/22 ,  C08F2/001 ,  C08F2/24 ,  C08F2/26 ,  C08F2/30 ,  C08F210/02 ,  C08F220/18 ,  C08F263/04 ,  C09D133/08 ,  C09D133/12 ,  C09D151/003

摘要： In a multi-stage emulsion polymerization process, a first monomer composition comprising from about 60 weight percent to about 95 weight percent of at least one vinyl ester, and from about 5 weight percent to about 40 weight percent ethylene is polymerized in a first stage under ethylene pressure to produce a first stage product having a Tg of less than 20° C. Then, in a second stage, a second monomer composition comprising at least 95 weight percent of a meth(acrylic)ester or a mixture of at least two different (meth)acrylic esters is polymerized in the presence of said first stage product, wherein the (meth)acrylic ester(s) is selected such that the polymer produced by said second monomer composition has a Tg of 5 to 90° C.

公开(公告)号：US09676958B2

公开(公告)日：2017-06-13

申请号：US14364407

申请日：2011-12-16

申请人： Stefan Nogai ,  Alistair McLennan

发明人： Stefan Nogai ,  Alistair McLennan

IPC分类号： C09D133/14 ,  C09D123/08 ,  C08K5/05 ,  C08K5/101 ,  C08K5/41 ,  C08K5/42 ,  C09D133/08 ,  C09D133/10

CPC分类号： C09D133/14 ,  C08K5/05 ,  C08K5/101 ,  C08K5/41 ,  C08K5/42 ,  C08L2312/00 ,  C09D123/0869 ,  C09D133/08 ,  C09D133/10

摘要： A copolymer dispersion is described comprising a copolymer derived from a monomer mixture comprising: (a) 88.5 to 94% by weight of at least one vinyl ester of a saturated carboxylic acid; (b) 5 to 10.5% by weight of ethylene; (c) 0.5 to 5% by weight of at least one ethylenically unsaturated acid and/or an anhydride thereof and/or a salt thereof; and (d) 0.5 to 5% by weight of at least one ethylenically unsaturated monomer having at least one crosslinkable functional unit. The weight ratio of vinylester units to ethylene units in the copolymer is between 89:11 and 94:6 and the dispersion is stabilized with at least 1% by weight of an emulsifier, wherein the amounts of monomers and emulsifier refer to the total amount of monomers in the copolymer.

公开(公告)号：US11993707B2

公开(公告)日：2024-05-28

申请号：US17859367

申请日：2022-07-07

申请人： Celanese Sales Germany GmbH

发明人： Dirk Zierer ,  Patrick Nickolay ,  Tim Feuerstack

IPC分类号： C08L67/02 ,  C08J5/04 ,  C08K3/04

CPC分类号： C08L67/02 ,  C08J5/042 ,  C08K3/04 ,  C08J2367/02 ,  C08J2467/02 ,  C08L2201/08 ,  C08L2205/025 ,  C08L2205/12 ,  C08L2205/24 ,  C08L2310/00 ,  C08K3/04 ,  C08L67/02

摘要： A polymer composition is described well suited for being combined with relatively short fibers. The fibers, for instance, can have a mean fiber length of less than 1,000 microns, such as less than 700 microns, such as less than 500 microns. The polymer formulation allows for intimate mixing with the fibers without having to use a sizing agent. In one embodiment, the composition contains a polybutylene terephthalate polymer combined with a thermoplastic polymer having lower crystallinity.

公开(公告)号：US20240034865A1

公开(公告)日：2024-02-01

申请号：US18482099

申请日：2023-10-06

申请人： Celanese Sales Germany GmbH

发明人： Christian Ohm ,  Rainer Walkenhorst ,  Patrick Scheibe

IPC分类号： C08L23/06 ,  C08L23/08 ,  C08L91/00 ,  C08J3/075 ,  C08J5/18

CPC分类号： C08L23/06 ,  C08L23/0815 ,  C08L91/00 ,  C08J3/075 ,  C08J5/18 ,  C08L2207/062 ,  C08J2323/06 ,  C08J2491/00 ,  C08L2203/12 ,  C08L2203/16 ,  C08L2205/14

摘要： A polymer composition for producing gel extruded articles is described. The polymer composition contains polyethylene particles combined with a plasticizer. The polyethylene particles are particularly selected so that the particles rapidly form a homogeneous gel-like material when combined with the plasticizer during gel processing. In one embodiment, the polyethylene used to produce the particles has a relatively low bulk density. Alternatively or in addition, the particles can have a carefully controlled particle size distribution. Polymer articles such as fibers and films can be produced having little to no imperfections.