发明授权
- 专利标题: Low titanium dioxide coatings
- 专利标题(中): 低二氧化钛涂层
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申请号: US13091887申请日: 2011-04-21
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公开(公告)号: US08362132B2公开(公告)日: 2013-01-29
- 发明人: Stephen Arthur Wheeler , Richard Barcock , Colin Pearce , Gary Jefferson , Anthony David Woods , Simon Nicholas Emmett , Javier Perez-Amoros
- 申请人: Stephen Arthur Wheeler , Richard Barcock , Colin Pearce , Gary Jefferson , Anthony David Woods , Simon Nicholas Emmett , Javier Perez-Amoros
- 申请人地址: NL Arnhem
- 专利权人: Akzo Nobel Coatings International B.V.
- 当前专利权人: Akzo Nobel Coatings International B.V.
- 当前专利权人地址: NL Arnhem
- 代理机构: Kenyon & Kenyon LLP
- 优先权: EP10161203 20100427
- 主分类号: C08K3/22
- IPC分类号: C08K3/22 ; C09D125/00 ; B32B27/30
摘要:
Aqueous coating composition having a PVC from 78 to 85% and free of non-fugitive coalescing solvent, comprising, based on the total volume solids of the dry coating unless otherwise stated, a) opacifying pigment particles comprising from 3 to 10% titanium dioxide and from 0 to 20% of hollow polymeric particles; b) non-opacifying extender particles comprising calcium magnesium carbonate and/or calcium carbonate and/or nepheline syenite and/or kaolin; c) polymer binder particles of calculated Fox Tg of from 5 to 25° C. having an acid value of from 15 to 65 mg KOH/g of polymer; d) dispersant having weight average molecular weight of at least 3500 Daltons, and wherein the dispersant demand of a mixture of the opacifying pigment particles, other than the hollow polymeric particles, of a) and the extender particles of b) is greater than 0.35 wt %, calculated on the weight of the titanium dioxide and extender particles; e) fugitive coalescing solvent.
公开/授权文献
- US20110318594A1 LOW TITIANIUM DIOXIDE COATINGS 公开/授权日:2011-12-29
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