http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2222717-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b9911abdd3631214895cc6dae252f9f4 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D4-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-001 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F265-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D5-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-00 |
| filingDate | 2008-11-28^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d8e5e1018653358b1234a01536763f96 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f91c17b12dc23713a087017aee02c979 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_affd8cd34907ba6ed4f8504931da195e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e4d2cf7ea18c029261e8f3966bf72c08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_171f5adbcc810594c92f7934a3b66304 |
| publicationDate | 2010-09-01^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-2222717-A1 |
| titleOfInvention | Polymer aqueous dispersion with core/skin structure, method for making same and application thereof in coatings |
| abstract | The invention relates to an aqueous dispersion of a polymer, including polymer particles having a core/skin structure, that can be obtained by the emulsion polymerisation of at least two monomer compositions 1 and 2 in at least two steps, said at least two monomer compositions 1 and 2 yielding polymers P1 and P2 having respective glass-transition temperatures Tg1 and Tg2, with Tg1 being lower than or equal to 30°C and Tg2 being higher than or equal to 80°C, the difference Tg2-Tg1 ranging from 50 to 200°C, wherein said polymerisation is carried out in the presence of at least one anionic phosphated surfactant that is present: a) either in the P1 polymer phase only; or b) in the P1 and P2 polymer phases provided that the weight ratio (anionic phosphated surfactant in P1/ anionic phosphated surfactant in P2) is higher than 1, the weight ratio of said anionic phosphated surfactant ranging from 0.5 t 5 wt %, preferably from 0.5 to 3 wt % and more preferably from 1 to 3 wt % relative to the total weight of the monomers in the dispersion, said phase P1 representing a ratio from 70 to 90 wt % of the total of P1+P2, and P2 representing a ratio from 10 to 30 wt % of the total of P1+P2. The invention also relates to a method for preparing said dispersion, to a composition of polymer aqueous dispersions including said dispersion, to a method for preparing said composition, to a coating or treatment composition containing said dispersion, to the use thereof in coatings or for treating natural or synthetic fibres, to the coating thus obtained and to a substrate coated with such a coating. |
| priorityDate | 2007-11-30^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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