C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 175/06 (2006.01) C08G 18/08 (2006.01) C08G 18/42 (2006.01) C08G 18/46 (2006.01) C08G 18/68 (2006.01)
Patent
CA 2161888
Aqueous-based corsslinkable coating composition comprising: (A) an aqueous dispersion of at least one hydroxyl-functional polyester oligomer in which: (i) said polyester has an average hydroxyl functionality of 2; (ii) said polyester incorporates chain pendant sulphonate anion groups which impart water-dispersibility thereto; (iii) said polyester has a number average molecular weight within the range of from 500 to below 1000,000; (iv) said aqueous dispersion is substantially free of any added amine or ammonia and any amine or ammonium cations; and (B) at least one organic polyisocyanate.
Enduit aqueux réticulable consistant en: (A) une dispersion aqueuse d'au moins un oligomère de polyester à fonction hydroxyle dans laquelle: (i) ledit polymère présente une fonctionalité hydroxyle de >/=2; (ii) ledit polymère comporte des groupes anion-sulfonate caténés pendants qui lui confèrent sa dispersibilité dans l'eau; (iii) ledit polymère possède un poids moléculaire moyen compris entre 500 et moins de 100 000; (iv) ladite dispersion aqueuse est pratiquement exempte d'amine ou d'ammoniaque et de cations amine ou ammonium; et (B) au moins un polyisocyanate organique.
Overbeek Gerardus Cornelis
Pears David Alan
Tennebroek Ronald Adrianus Norbertus Petrus
Smart & Biggar
Zeneca Resins Bv
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