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    PROCESS FOR PREPARING STABLE PHOTORESIST COMPOSITIONS
    2.
    发明公开
    PROCESS FOR PREPARING STABLE PHOTORESIST COMPOSITIONS 审中-公开
    方法制备稳定PHOTO油漆组合物

    公开(公告)号：EP1966251A1

    公开(公告)日：2008-09-10

    申请号：EP06838000.5

    申请日：2006-11-17

    申请人： Dupont Electronic Polymers L.P.

    发明人： RUSSELL, William Richard ,  SCHUTZ, John Anthony

    IPC分类号： C08F6/02 ,  C08F6/10 ,  C08F6/12 ,  G03F7/00 ,  C08J3/00 ,  C08G61/00 ,  C08L65/00 ,  C08L25/18

    CPC分类号： C08F6/02 ,  C08F6/10 ,  C08F6/12 ,  C08J3/09 ,  G03F7/0382 ,  G03F7/0392

    摘要： A method of making a stable photoresist solution containing a polymer from a solution of a polymer containing trace metals, said method comprising the steps of: (a) providing a polymer solution containing a polymer, a first solvent and trace metals; (b) passing said polymer solution through an acidic cation ion exchange material to remove said trace metals therefrom and thereby forming a polymer solution containing free acid radicals; (c) precipitating said polymer from said polymer solution of step b by contacting with a second solvent wherein the polymer is substantially insoluble therein; (d) filtering said solution and said second solvent to thereby form a solid polymer cake; (e) contacting said cake from step d with sufficient quantities of additional said second solvent in order to remove free acid radicals therefrom; (f) adding a compatible photoresist solvent to said solid polymer cake from step e and mixing the two in order to dissolve said polymer in said photoresist solvent and thereby forming a photoresist solution; and (g) removing any residual first and second solvents from said photoresist solution containing said polymer to form a stable photoresist solution.

    DERIVATIZED POLYHYDROXYSTYRENES WITH A NOVOLAK TYPE STRUCTURE AND PROCESSES FOR PREPARING THE SAME
    3.
    发明公开
    DERIVATIZED POLYHYDROXYSTYRENES WITH A NOVOLAK TYPE STRUCTURE AND PROCESSES FOR PREPARING THE SAME 有权
    根据上述制造的结构线型和过程衍生化聚羟基苯乙烯

    公开(公告)号：EP1756191A1

    公开(公告)日：2007-02-28

    申请号：EP05742547.2

    申请日：2005-04-22

    申请人： Dupont Electronic Polymers L.P.

    发明人： SHEEHAN, Michael, T. ,  ZEY, Edward, G.

    IPC分类号： C08G61/02

    CPC分类号： C09D125/18 ,  C08G61/04 ,  C08G2261/312 ,  G03F7/023 ,  G03F7/038 ,  Y02P20/582

    摘要： A process for preparing derivatized poly(4-hydroxystryrene) having a novolak type structure which comprises the steps of (i) supplying a solution of methanol containing 4-hydroxyphenylmethylcarbinol, (ii) subjecting said solution to an acid catalyzed displacement reaction for a sufficient period of time and under suitable conditions of temperature and pressure to convert substantially all of said carbinol to 4-hydroxyphenylmethylcarbinol methyl ether in solution, (iii) polymerizing said ether containing solution in the presence of a suitable acid catalyst for a sufficient period of time and under suitable conditions of temperature and pressure to form a novolak type polymer. New compositions of matter which comprise the derivatized poly(4-hydroxystyrene) prepared in the above manner and which have application in the electronic chemicals market such as in a photoresist composition, and in other areas such as in varnishes, printing inks, epoxy resins, copying paper, tackifiers for rubber, crude oil separators, and the like.

    PREPARATION OF HOMO-, CO- AND TERPOLYMERS OF SUBSTITUTED STYRENES
    6.
    发明授权
    PREPARATION OF HOMO-, CO- AND TERPOLYMERS OF SUBSTITUTED STYRENES 有权
    均聚物，共聚物和三元共聚物OFF取代的苯乙烯的制备

    公开(公告)号：EP1497341B1

    公开(公告)日：2009-06-10

    申请号：EP03719712.6

    申请日：2003-04-10

    申请人： DuPont Electronic Polymers L.P.

    发明人： SHEEHAN, Michael, T. ,  SOUNIK, James, R.

    IPC分类号： C08F8/00 ,  C08F6/02 ,  C08F12/24

    CPC分类号： C08F6/04 ,  C08F6/02 ,  C08F8/14 ,  C08F2800/10 ,  C08F2800/20 ,  G03F7/0045 ,  G03F7/039 ,  C08L25/18 ,  C08L25/00 ,  C08F212/14

    摘要： A novel one-pot cost efficient process for the preparation of homo-, co- and terpolymers of p-hydroxystyrene or substituted p-hydroxystyrene and alkyl acrylates. The process involves polymerization of esters of p-hydroxystyrene (or its substituted analogs), alkyl acrylate monomers and/or one or more of ethylenically unsaturated monomers in an alcohol solvent in the presence of a free radical initiator. The reaction mixture containing the so formed polymer is subjected to transesterification conditions using a catalytic amount of catalyst to result in co-and/or terpolymers of p-hydroxystyrene without cleavage of the alkyl ester in the acrylate repeat unit, and then removing the catalyst from the system. Preferred embodiments include homopolymers of p-hydroxystyrene, copolymer of p-hydroxystyrene and tert-butyl acrylate and terpolymer of p-hydroxystyrene, tert-butyl acrylate and styrene. These polymers have a wide variety of applications including as photoresists in microelectronics industry.

    Derivatized polyhydroxystyrenes with a novolak type structure and processes for preparing the same
    10.
    发明公开
    Derivatized polyhydroxystyrenes with a novolak type structure and processes for preparing the same 审中-公开
    Derivatisierte Polyhydroxystyrole mit einer Struktur vom Novolaktyp und Herstellungsverfahrendafür

    公开(公告)号：EP2336216A1

    公开(公告)日：2011-06-22

    申请号：EP10179873.4

    申请日：2005-04-22

    申请人： DuPont Electronic Polymers L.P.

    发明人： SHEEHAN, Michael T. ,  ZEY, Edward G.

    IPC分类号： C08G61/02 ,  C09D125/18

    CPC分类号： C09D125/18 ,  C08G61/04 ,  C08G2261/312 ,  G03F7/023 ,  G03F7/038 ,  Y02P20/582

    摘要： A process for preparing derivatized poly(4-hydroxystryrene) having a novolak type structure which comprises the steps of (i) supplying a solution of methanol containing 4-hydroxyphenylmethylcarbinol, (ii) subjecting said solution to an acid catalyzed displacement reaction for a sufficient period of time and under suitable conditions of temperature and pressure to convert substantially all of said carbinol to 4-hydroxyphenylmethylcarbinol methyl ether in solution, (iii) polymerizing said ether containing solution in the presence of a suitable acid catalyst for a sufficient period of time and under suitable conditions of temperature and pressure to form a novolak type polymer. New compositions of matter which comprise the derivatized poly(4-hydroxystyrene) prepared in the above manner and which have application in the electronic chemicals market such as in a photoresist composition, and in other areas such as in varnishes, printing inks, epoxy resins, copying paper, tackifiers for rubber, crude oil separators, and the like.

    摘要翻译： 一种制备具有酚醛清漆型结构的衍生化聚（4-羟基苯乙烯）的方法，其包括以下步骤：（i）提供含有4-羟基苯基甲基甲醇的甲醇溶液，（ii）使所述溶液进行酸催化置换反应足够的时间 的时间和温度和压力的合适条件下，将基本上所有的所述甲醇转化为溶液中的4-羟基苯基甲基甲醇甲醚，（iii）在合适的酸催化剂存在下将所述含醚溶液聚合足够的时间和在 合适的温度和压力条件形成酚醛清漆型聚合物。 包含以上述方式制备的衍生化的聚（4-羟基苯乙烯）的新物质组合物，其应用于电子化学品市场，例如在光致抗蚀剂组合物中，以及其它领域如清漆，印刷油墨，环氧树脂， 复印纸，橡胶增粘剂，原油分离器等。