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51. 发明专利

HK1081609A1 A process for making dyed articles 未知
公开(公告)号：HK1081609A1
公开(公告)日：2006-05-19
申请号：HK06101948
申请日：2006-02-15
申请人： BAYER MATERIALSCIENCE LLC
发明人： PYLES ROBERT A , ARCHEY RICK L
IPC分类号： D06P20060101 , G02C7/02 , B29D20060101 , D06P1/16 , D06P1/613 , D06P1/651 , D06P1/92 , D06P3/00 , D06P3/54 , D06P5/00 , D06P5/20 , G02B1/04
摘要： A process of dyeing a molded article is disclosed. The process entails immersing at least a portion of the article in a dyeing bath, retaining the portion in the bath for a period of time sufficient to allow an amount of dye to diffuse into the article, and removing said article from the bath. The molded article comprises a polymeric resin such as (co)polyester, (co)polycarbonates, acrylonitrile-butadiene-styrene, polyamide, polyurethane, polyalkyl(meth)-acrylate, allyldiglycol carbonate and styrene copolymers. The dyeing bath contains in addition to dye, water, a plasticizing agent and a leveling agent.

52. 发明专利

CA2549186A1 METHOD OF TREATING A PLASTIC ARTICLE 未知
公开(公告)号：CA2549186A1
公开(公告)日：2005-07-07
申请号：CA2549186
申请日：2004-12-06
申请人： BAYER MATERIALSCIENCE LLC
发明人： ARCHEY RICK L , DERIKART DAVID M , PYLES ROBERT A
IPC分类号： C08J7/06
摘要： In the method of the present invention at least a portion of the surface of a plastic article (e.g., a molded article of thermoplastic polycarbonate) is contacted with (e.g., immersed in) a treatment composition which includes on e or more performance additives. The treatment composition contains: (i) at least one performance additive (e.g., an ultraviolet light absorber); (ii) water; (iii) at least one carrier represented by the following general formu la (I), wherein R1 is a radical selected from the group consisting of linear or branched C1-C18 alkyl, benzyl, benzoyl and phenyl, R2 is a radical selected from the group consisting of linear or branched C1-C18 alkyl, benzyl, benzoy l, phenyl and H, n is 2, 3 or 4, and m is 1 to 35; and (iv) a diol selected fro m at least one of linear or branched C2-C20 aliphatic diols, poly(C2-C4 alkyle ne glycol), cycloaliphatic diols having from 5 to 8 carbon atoms in the cyclic ring, monocyclic aromatic diols, bisphenols and hydrogenated bisphenols. In an embodiment of the present invention, the carrier is ethyleneglycol monobutyl ether, and the diol is diethylene glycol.

53. 发明专利

CA2549150A1 METHOD OF DYEING A PLASTIC ARTICLE 未知
公开(公告)号：CA2549150A1
公开(公告)日：2005-07-07
申请号：CA2549150
申请日：2004-12-06
申请人： BAYER MATERIALSCIENCE LLC
发明人： PYLES ROBERT A , ARCHEY RICK L , DERIKART DAVID M
IPC分类号： D06P1/613 , B29D11/00 , C08J7/06 , D06P1/60 , D06P1/651 , D06P5/00 , G02B1/04 , G02C7/04
摘要： In the method of the present invention a plastic article (e.g., a molded article of thermoplastic polycarbonate) is immersed at least partially in a dye bath which includes one or more dyes, water, at least one carrier, and a t least one diol. The dye bath contains: (i) at least one dye (e.g., a static and/or photochromic dye); (ii) water; (iii) at least one carrier represented by the following general formula I, R-O-(CH2)n-OH wherein R is a radical selected from linear or branched C1-C18 alkyl, benzyl, benzoyl and phenyl, a nd n is 2 or 3; and (iv) a diol selected from at least one of linear or branche d C2-C20 aliphatic diols, poly(C2-C4 alkylene glycol), cycloaliphatic diols having from 5 to 8 carbon atoms in the cyclic ring, monocyclic aromatic diol s, bisphenols and hydrogenated bisphenols. In an embodiment of the present invention, the carrier is ethyleneglycol butyl ether, and the diol is diethylene glycol. The present invention also relates to a method of separating the dye from the water, carrier and diol components of the dye bath, by contacting the dye bath with particulate activated carbon.

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