Patent application number | Description | Published |
20090143528 | Waterborne multistage polymer dispersion - The invention relates to a process for the manufacture of a waterborne multistage polymer dispersion that has ethylenically unsaturated functional groups for crosslinking. The process comprises the steps of;
| 06-04-2009 |
20090264586 | AQUEOUS DISPERSION OF AN AUTO-OXIDATIVELY DRYING POLYURETHANE - A process for the preparation of an aqueous dispersion of an auto-oxidatively drying polyurethane, comprising the steps of: a) forming the auto-oxidatively drying polyurethane by reacting an unsaturated fatty acid esterified polyol, a hydroxyl functional polyalkene having one or more unsaturated bonds in the backbone chain between 2 hydroxyl groups, a polyhydroxy carboxylic acid, a polyisocyanate, and optionally a diol having no polyunsaturation; b)optionally adding a neutralizing agent; and c) dispersing the product of step (a) or (b) in water to form an aqueous dispersion. The invention further relates to aqueous dispersions and coating compositions of an auto-oxidatively drying polyurethane, to hybrid dispersions further comprising a co-binder, preferably an acrylic binder as a co-dispersion, as a molecular hybrid or as a blend and to the use thereof for coating fabrics, plastics, wood, or metal. | 10-22-2009 |
20110124795 | AQUEOUS COATING COMPOSITION AND PREPARATION THEREOF - A process for the preparation of a thixotropic aqueous coating composition comprising the steps of: i) providing an aqueous dispersion of a binder system comprising carbonyl and hydrazide functional groups for crosslinking; and ii) reacting in the aqueous dispersion, an ether amine with a tris(isocyanate) isocyanurate to form a polyurea sag control agent. | 05-26-2011 |
20110237728 | CROSSLINKABLE POLYMER BINDER - The invention relates to a crosslinkable polymer binder comprising a polyurethane macromer and grafted thereon a vinyl polymer, to an aqueous dispersion comprising said crosslinkable polymer binder and to a process for the manufacture of said crosslinkable polymer binder and said aqueous dispersion thereof. The crosslinkable polymer binder can be used in coating compositions or adhesives. | 09-29-2011 |
20120088878 | AQUEOUS HYBRID DISPERSIONS - The invention relates to a process for the preparation of an aqueous hybrid polymer dispersion comprising an auto-oxidatively crosslinkable polymer and an addition polymer. The invention further relates to the aqueous hybrid polymer dispersion obtainable by said process, the use thereof for the manufacture of coating compositions, ink compositions or adhesives and to coating compositions includes the hybrid polymer dispersion as a binder. The process includes a first polymerization step wherein a first hybrid polymer dispersion is formed by addition polymerization of vinyl monomers in the presence of dispersed auto-oxidatively crosslinkable polymer and a second polymerization step wherein secondary polymerization loci are provided in the first hybrid polymer dispersion to polymerise residual vinyl monomer of the first polymerisation step. The aqueous hybrid polymer dispersions have very low residual vinyl monomer content by achieving a high if not full conversion of the vinyl monomers at the end of the polymerization. | 04-12-2012 |
20130018127 | WATERBORNE HYBRID POLYMER DISPERSIONAANM Mestach; Dirk Emiel PaulaAACI NijlenAACO BEAAGP Mestach; Dirk Emiel Paula Nijlen BEAANM Adolphs; RobAACI BavelAACO NLAAGP Adolphs; Rob Bavel NLAANM Berry; AdamAACI AucklandAACO NZAAGP Berry; Adam Auckland NZAANM Paulis; MariaAACI Donostia-San SebastianAACO ESAAGP Paulis; Maria Donostia-San Sebastian ESAANM Barandiaran; MariaAACI Donostia-San SebastianAACO ESAAGP Barandiaran; Maria Donostia-San Sebastian ESAANM Asua; JoseAACI Donostia-San SebastianAACO ESAAGP Asua; Jose Donostia-San Sebastian ESAANM Goikoetxea; MonikaAACI HondarrilbiaAACO ESAAGP Goikoetxea; Monika Hondarrilbia ESAANM Beristain; ItxasoAACI UrnietaAACO ESAAGP Beristain; Itxaso Urnieta ES - The invention relates to a process for the manufacture of an auto-oxidatively cross-linking hybrid polymer, in particular an aqueous hybrid polymer dispersion, comprising the step of reacting in a mini-emulsion process one or more ethylenically unsaturated monomers to form an addition polymer (also referred to as a vinyl polymer) in the presence of a modified auto-oxidatively crosslinkable (AOC) polymer which has been modified with terminal unsaturated groups of the formula C(R | 01-17-2013 |
20130072641 | CROSSLINKABLE POLYMER BINDER - The invention relates to a crosslinkable polymer binder comprising a polyurethane macromer and grafted thereon a vinyl polymer, to an aqueous dispersion comprising said crosslinkable polymer binder and to a process for the manufacture of said crosslinkable polymer binder and said aqueous dispersion thereof. The crosslinkable polymer binder can be used in coating compositions or adhesives. | 03-21-2013 |
20130245185 | AQUEOUS HYBRID DISPERSIONS - The invention relates to a process for the preparation of an aqueous hybrid polymer dispersion comprising an auto-oxidatively crosslinkable polymer and an addition polymer. The invention further relates to the aqueous hybrid polymer dispersion obtainable by said process, the use thereof for the manufacture of coating compositions, ink compositions or adhesives and to coating compositions includes the hybrid polymer dispersion as a binder. The process includes a first polymerization step wherein a first hybrid polymer dispersion is formed by addition polymerization of vinyl monomers in the presence of dispersed auto-oxidatively crosslinkable polymer and a second polymerization step wherein secondary polymerization loci are provided in the first hybrid polymer dispersion to polymerise residual vinyl monomer of the first polymerisation step. The aqueous hybrid polymer dispersions have very low residual vinyl monomer content by achieving a high if not full conversion of the vinyl monomers at the end of the polymerization. | 09-19-2013 |
20140005322 | WATERBORNE COATING COMPOSITION | 01-02-2014 |
20140039122 | PROCESS FOR PREPARING AQUEOUS VINYL POLYMER DISPERSIONS - The invention relates to a process for the preparation of aqueous vinyl polymer dispersions having good film forming properties, good stability and in can clarity, to the polymer dispersions obtainable by the process and coating compositions prepared from said polymer dispersions and the use thereof. The process comprising, (1) a first polymerisation step comprising (1a) preparing an emulsion (1A) in water of a first monomer mixture (1a1) comprising carboxylic acid functional monomers, a surfactant (1a2) and water soluble inorganic salt (1a3) wherein surfactant (1a2) is a sulfur based anionic surfactant containing less than 60 wt % ethylene oxide and wherein the salt (1a3) content at the start of polymerization (1b) is between 0.01 and 3 gr/kg water, (1b) emulsion polymerizing the obtained emulsion 1A forming a hydroplasticisable first stage polymer particle dispersion (1B) said first stage polymer having a Tg from 10 to 125°, (2) a second polymerization step comprising (2a) adding to dispersion 1B a second monomer mixture (2a1) wherein carboxylic acid functional monomers is present in an amount such that the acid value of the resulting polymer is less than 23 KOH/g and wherein the amount of monomer mixture (2a1) is between 10 and 90 wt % of the total weight of monomers (1a1) plus (2a1), (2b) polymerizing second monomer mixture (2a1) to form a second stage polymer in the first particle dispersion (1B) to form a multiphase particle dispersion (2B). | 02-06-2014 |