CELANESE EMULSIONS GMBH Patent applications |
Patent application number | Title | Published |
20160115649 | FUNCTIONALIZED VINYL ACETATE ETHYLENE BINDERS FOR PAPER AND PAPERBOARD COATINGS - A paper product comprising a planar fibrous cellulose substrate, and a coating composition disposed on a surface of said substrate comprising an interpolymer prepared by the emulsion polymerization of (i) one or more vinyl ester monomers; (ii) ethylene; (iii) an unsaturated silane co-monomer; and (iv) one or more emulsion-stabilizing ionic co-monomers comprising one or more of unsaturated, substituted sulfonic acid, one or more of an unsaturated phosphonic acid, or an ester of one of those acids, in the presence of (v) a stabilizing system which comprises one or more anionic and/or nonionic surfactants but less than about 1 pphm of any protective colloid material; and (v) water. | 04-28-2016 |
20150247054 | POLYMER DISPERSIONS AND THEIR USE IN PIGMENTED COATING COMPOSITIONS - 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. | 09-03-2015 |
20150184015 | WATERPROOFING COATING COMPOSITIONS - 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. | 07-02-2015 |
20150141553 | LOW FORMALDEHYDE VINYL ESTER/ETHYLENE EMULSION COPOLYMERS - 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. | 05-21-2015 |
20150086746 | VINYL ESTER/ETHYLENE COPOLYMER DISPERSIONS PREPARED BY CONTINUOUS TUBULAR EMULSION POLYMERIZATION FOR COATING CARPET PRODUCTS - Disclosed are aqueous compositions suitable for use as binders or adhesives in carpet products. Such compositions, prior to being applied to carpet substrates and cured, comprise vinyl ester/ethylene copolymer dispersions, along with other optional comonomers. The compositions are made by a continuous emulsion polymerisation that utilises a continuous loop reactor with a secondary line section. Carpet products which utilise such coating compositions to provide binder and/or adhesive layer within the carpet are also disclosed. | 03-26-2015 |
20140350172 | POLYMER DISPERSIONS, THEIR PREPARATION AND USE - 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 T | 11-27-2014 |
20140349060 | CARPET COATING COMPOSITIONS OF IMPROVED STABILITY FORMED FROM VINYL ACETATE/ETHYLENE COPOLYMER DISPERSIONS - Disclosed are aqueous carpet-coating compositions suitable for use as binders or adhesives in carpet products. Such compositions, prior to being applied to carpet substrates and cured, comprise: A) a selected type of vinyl acetate/ethylene (VAE) copolymer dispersion which has been stabilized with emulsifiers and a cellulose ether-based protective colloid, and B) at least one carbon black based filler in the form of a dispersion/slurry with a solids content between 20 and 70%. These coating compositions exhibit especially desirable initial viscosity and viscosity stability characteristics. Carpet products which utilize such coating compositions to provide binder and/or adhesive layer within the carpet are also disclosed. Such carpet products can have desirable odor-controlling and odor-absorbing properties. | 11-27-2014 |
20140323655 | HALOGEN-CONTAINING THERMOPLASTIC RESINS COMPOSITIONS - A halogen-containing thermoplastic resin composition comprises (i) a halogen-containing thermoplastic resin; and (ii) a graft copolymer comprising (a) a first polymer produced by emulsion polymerization of at least one vinyl ester of a C | 10-30-2014 |
20140323608 | POLYMER DISPERSIONS - A polymer dispersion comprises particles of a polymer composition formed at least partially by emulsion polymerization of first and second, simultaneously added, substantially styrene-free monomer feeds in the presence of an initiator in a reaction zone. The first monomer feed comprises monomers selected to produce a copolymer having a glass transition temperature less than or equal to about −10° C., while the second monomer feed comprises monomers selected to produce a copolymer having a glass transition temperature greater than or equal to about 50° C. The relative rate of addition of the first and second monomer feeds into the reaction zone is continuously changed during at least part of the emulsion polymerization and the rate of addition of the initiator is changed step-wise at least once during the addition of the first and second monomer feeds. | 10-30-2014 |
20140243468 | Cross-Linkable Monomers and Polymers and the Use Thereof - The invention relates to novel cross-linkable monomers that may be polymerized with ethylenically unsaturated comonomers to form cross-linkable copolymers. Said copolymers may particularly be used in the form of aqueous dispersions as formaldehyde-free adhesives or as coatings with good water resistance. The cross-linkable monomer is a compound in acid or salt form comprising an anion of the formula (I) and one or more cations for producing electrical neutrality, where R | 08-28-2014 |
20140171574 | LOW FORMALDEHYDE VINYL ESTER/ETHYLENE COPOLYMER DISPERSIONS FOR USE IN ADHESIVES - Disclosed are low-formaldehyde aqueous dispersions of vinyl ester/ethylene, e.g., vinyl acetate/ethylene (VAE), copolymers suitable for use in adhesives for applications such as tobacco or food products wherein only very low levels of formaldehyde are permitted. Such dispersions are prepared by emulsion copolymerization of a monomer mixture comprising a vinyl ester, ethylene, a stabilizing system comprising polyvinyl alcohol preferably having a degree of hydrolysis of at least 97 mole %, and a selected type of free radical redox polymerization initiator system. This selected redox initiator system comprises both a water-insoluble oxidizing agent and a sulfuric acid-based reducing agent. The monomer mixture which is polymerized is substantially free of co-monomers which yield free formaldehyde upon drying or curing of the dispersion and is also substantially free of ethylene oxide-containing emulsifiers. The aqueous dispersions resulting from polymerization of this monomer mixture has a solids content in weight percent and a Brookfield viscosity in millipascal-seconds such that the ratio of solids content to the natural logarithm of viscosity ranges from about 6.34 to about 8.25 wt %/ln(mPa·s). The dispersions herein also have a formaldehyde content of less than about 5.0 ppmw as determined by ISO-15173. | 06-19-2014 |
20140162018 | Carpet Products and Methods for Making Same - Disclosed are carpet products made using a first copolymer precoat adhesive to secure carpet fibers to a carpet backing or substrates in combination with a second copolymer skipcoat adhesive for securing a carpet scrim or other layer to a carpet backing. The first copolymer is a copolymer of a vinyl ester and ethylene and a cross-linking comonomer, and the second copolymer is a copolymer of styrene and butadiene. Such emulsions are stabilized with surfactant emulsifiers but are preferably substantially free of protective colloid stabilizers. The first copolymer exhibits an elongation value greater than 125% at 110° C. | 06-12-2014 |
20130253101 | AQUEOUS BINDER SYSTEMS AND THEIR USE IN PRODUCING COATING COMPOSITIONS - A binder mixture is described comprising: an aqueous copolymer dispersion which has a glass transition temperature, T | 09-26-2013 |
20130203927 | Plasticized Vinyl Acetate Copolymer Binder Compositions for Chopped Strand Mat - A plasticized binder composition suitable as a binder for chopped strand mats comprising (a) a copolymer obtainable by reacting; (i) 60-95 pphwm of vinyl acetate; and (ii) 5-40 pphwm of vinyl ester of α-substituted alkanoic acid; and b) a plasticizer, wherein the weight ratio of copolymer/plasticizer is from 1 to 6. | 08-08-2013 |
20130190448 | AQUEOUS POLYMER DISPERSIONS - An aqueous polymer composition is described comprising a homogeneous acrylic polymer dispersion produced by emulsion polymerization of a monomer mixture comprising: (A) from 85 to 99.9 wt % of one or more main monomers selected from C | 07-25-2013 |
20130177733 | Washable Carpet Products With Coating Layers Formed From Vinyl Ester/Ethylene Copolymer Dispersions - Disclosed are carpet products comprising at least one flexible substrate and at least one coating layer associated with the at least one flexible substrate. The coating layer is formed from an aqueous composition comprising: A) an emulsifier-stabilized vinyl acetate/ethylene (VAE) emulsion copolymer dispersion wherein the VAE copolymer therein comprises co-monomers which include at least vinyl acetate copolymerized with ethylene and optionally also with other additional functional and/or non-functional co-monomers; 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 particle size, d | 07-11-2013 |
20130156997 | Flame Retardant Carpet Products With Coating and/or Adhesive Layers Formed From Vinyl Acetate/Ethylene Copolymer Dispersions - 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, d | 06-20-2013 |
20130095719 | Mineral Wool Fiber Mats, Method for Producing Same, and Use - The invention relates to mineral wool fiber mats, which are stabilized by means of a binder made of polymers funtionalized with epoxy groups and/or with carboxyl groups and selected cross-linking agents. Said mats can be used as an insulating material and are characterized by low or no formaldehyde emissions. | 04-18-2013 |
20120316282 | VINYL ESTER/ETHYLENE COPOLYMER DISPERSIONS FOR USE IN ADHESIVE FORMULATIONS - An aqueous dispersion of a vinyl ester/ethylene copolymer is prepared by emulsion copolymerization of a monomer mixture comprising a vinyl ester, ethylene and a polyvinyl alcohol stabilizing system consisting essentially of (a) about 0.5 to about 3 wt % based on the total monomer weight of a first polyvinyl alcohol having a degree of hydrolysis of at least 98 mole % and (b) about 1 to about 4 wt % based on the total monomer weight of a second polyvinyl alcohol having a degree of hydrolysis of about 85 to about 90 mole % and a weight average molecular weight of at least 85,000 g/mol. | 12-13-2012 |
20120061607 | Vinyl acetate based alkaline resistant scrim binder - Disclosed is an aqueous formulation comprising a polymer which is based on a vinyl acetate copolymer, a binder system comprising said aqueous formulation and additionally an aqueous formulation comprising polymer (B). The invention further relates to a fibrous product comprising a fibrous substrate as well as the aqueous formulation or the binder system and use of the aqueous formulation or the binder system for coating synthetic or mineral fibres, for the manufacturing of Eternal Insulation Finishing Systems (EIFS), for increasing the alkali resistance of synthetic or mineral fibres and use in a process for the manufacturing of an alkali resistant glass fibre scrim. Further, the invention relates to a method for the manufacturing of the aqueous formulation. | 03-15-2012 |
20120029142 | Heterogeneous Vinyl Acetate Based Copolymers as Binder for Paints - The present invention describes a method for the manufacturing of a multi-stage polymer by the following steps:
| 02-02-2012 |
20120009379 | Vinyl Acetate-Ethylene-Copolymer Dispersions and Textile Web Material Treated herewith - The invention relates to vinyl acetate-ethylene copolymer dispersions suitable for treating textle web materials, and to textile web material treated therewith, being suitable in particular as floor coverings or as belts. The vinyl acetate-ethylene-copolymer dispersions are characterized by a low ethylene unit content, relatively high glass transition temperatures, and a small particle size. | 01-12-2012 |
20110190462 | Cross-Linkable Monomers and Polymers and the Use Thereof - The invention relates to novel cross-linkable monomers that may be polymerized with ethylenically unsaturated comonomers to form cross-linkable copolymers. Said copolymers may particularly be used in the form of aqueous dispersions as formaldehyde-free adhesives or as coatings with good water resistance. The cross-linkable monomer is a compound in acid or salt form comprising an anion of the formula (I) and one or more cations for producing electrical neutrality, where R | 08-04-2011 |
20090312481 | POLYVINYL ESTER DISPERSIONS AND THEIR USE - A description is given of aqueous polyvinyl ester dispersions comprising
| 12-17-2009 |
20090281218 | POLYVINYL ESTER DISPERSIONS WITH LOW FILM FORMATION TEMPERATURE AND HIGH WATER RESISTANCE AND USE THEREOF - Polyvinyl ester dispersions with low film formation temperature and high water resistance and use thereof | 11-12-2009 |
20090203832 | Process for Preparing Polymer Dispersions, the Resulting Dispersions and Their Use - A description is given of a process of emulsion polymerization of free-radically polymerizable ethylenically unsaturated monomers selected from the group of the monoesters or diesters of ethylenically unsaturated monocarboxylic or dicarboxylic acids with alkanols, vinyl esters and/or vinylaromatics and, if desired, further monomers copolymerizable therewith, at least 60% of the total conversion in the polymerization taking place at a temperature of 100° C. to 160° C., the polymerization being performed in the presence of emulsifiers and an amount of 0% to 1% by weight, based on the total amount of the monomers used, of protective colloid. | 08-13-2009 |
20080269397 | Coating Agents that are Devoid of Preservatives, Method for their Production and Use Thereof - A description is given of coating compositions comprising at least one strongly basic agent to set a pH of at least 10, at least one selected vinyl ester copolymer, if desired, pigment and/or filler, and, if desired, further additives customary per se. | 10-30-2008 |
20080214722 | Coating Agent With High Abrasion Resistance Method For Production And Application Thereof - A description is given of coating compositions comprising at least one pigment and/or filler and at least one aqueous dispersion of a selected emulsifier-stabilized vinyl ester copolymer which comprises as its stabilizer a mixture of at least one nonionic emulsifier and at least one salt of a bisester of a sulfonated dicarboxylic acid having 4 to 8 carbon atoms. | 09-04-2008 |