中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

34 records (took 0.017 seconds)

    HYPERBRANCHED POLYOL MACROMOLECULE, METHOD OF MAKING SAME, AND COATING COMPOSITION INCLUDING SAME
    11.
    发明公开
    HYPERBRANCHED POLYOL MACROMOLECULE, METHOD OF MAKING SAME, AND COATING COMPOSITION INCLUDING SAME 有权
    超支化多元醇大分子，方法ITS，涂装其组成

    公开(公告)号：EP1242509A1

    公开(公告)日：2002-09-25

    申请号：EP00976996.9

    申请日：2000-11-06

    Applicant: BASF CORPORATION

    Inventor： RAMESH, Swaminathan

    IPC: C08G83/00 ,  C08G63/60 ,  C09D201/00

    CPC classification number: C08G83/005 ,  C08G63/123 ,  C08G63/60 ,  C08G63/91 ,  C09D167/00 ,  C09D201/005 ,  Y10S977/754 ,  C08L2666/36 ,  C08L61/04

    Abstract: A hyperbranched polyester polyol macromolecule, having a plurality of both embedded and exterior hydroxyl groups thereon, may be synthesized in a 5 polymerization reaction having several steps. The hyperbranched polyol includes a central nucleus, a first chain extension, an inten-nediate substituent and a second chain extension. The central nucleus is a hydrocarbon structure with a plurality of oxygen atoms. The first chain extender is attached to the central nucleus and includes a carboxylic ester group and a plurality of hydroxyl groups. The intermediate substituent is attached to the first chain extender, and is a polyfunctional carboxylic acid or anhydride thereof. The preferred intermediate substituent is a cyclic compound. The second chain extension is attached to the inten-nediate substituent. The preferred second chain extension includes a glycidyl ester or epoxy. Methods of making a hyperbranched polyester polyol are also disclosed. Coating compositions in which the hyperbranched polyol is reacted with an aminoplast or with an isocyanate are also encompassed by the invention.

    CARBAMATE-FUNCTIONAL, RESINS AND THEIR USE IN HIGH SOLIDS COATING COMPOSITIONS
    17.
    发明公开
    CARBAMATE-FUNCTIONAL, RESINS AND THEIR USE IN HIGH SOLIDS COATING COMPOSITIONS 有权
    氨基甲酸酯树脂和它们在涂料组合物具有高固体含量

    公开(公告)号：EP1370622A2

    公开(公告)日：2003-12-17

    申请号：EP01990751.8

    申请日：2001-11-28

    Applicant: Basf Corporation

    Inventor： RAMESH, Swaminathan ,  GREEN, Marvin ,  CAMPBELL, Donald ,  OHRBOM, Walter

    IPC: C09D201/02 ,  C08G18/80 ,  C08G83/00

    CPC classification number: C09D201/025 ,  C09D201/005 ,  Y10T428/31511 ,  Y10T428/31551

    Abstract: The present invention provides a coating composition containing 1) a carbamate-functional resin having in its structure a hyperbranched or star polyol core, a first chain extension based on a polycarboxylic acid or anhydride, a second chain extension based on an epoxy containing compound, and having carbamate functional groups on the core, the second chain extension, or both; and 2) a second resin containing functional groups reactive with the carbamate groups on the carbamate-functional resin. In one embodiment, the coating compositions are used as a clearcoat to be applied over a basecoat to form a composite coating. The compositions exhibit a combination of desirable properties, such as scratch and mar resistance, resistance to environmental etch, good intercoat adhesion, and high solids.

    PIGMENT DISPERSION AND METHOD OF PREPARING THE SAME
    18.
    发明公开
    PIGMENT DISPERSION AND METHOD OF PREPARING THE SAME 有权
    颜料分散体及生产

    公开(公告)号：EP1366123A2

    公开(公告)日：2003-12-03

    申请号：EP01995101.1

    申请日：2001-11-19

    Applicant: Basf Corporation

    Inventor： RAMESH, Swaminathan ,  LANZA, JoAnn ,  HARRIS, Paul

    IPC: C09D5/00

    CPC classification number: B01F17/0028 ,  B01F17/0057 ,  B01F17/0064 ,  C01P2004/61 ,  C01P2006/22 ,  C08F8/40 ,  C09D7/45 ,  C09D17/004

    Abstract: The present invention is directed to a water-based acrylic emulsion dispersant to be used as a grind resin to incorporate inorganic pigment into a pigment dispersion for a coating composition. The acrylic emulsion dispersant is the reaction product of butyl methacrylate, butyl acrylate, styrene, methyl ether polyethylene glycol methacrylate, polyethylene glycol methacrylate, and polyphosphoric acid. The present invention is also directed to a method of preparing the acrylic emulsion dispersant. In this method, the butyl methacrylate, butyl acrylate, and styrene are combined with water to establish a first reaction blend. Similarly, the methyl ether polyethylene glycol methacrylate and the polyethylene glycol methacrylate are combined with water to establish a second reaction blend. Next, the first and second reaction blends are polymerized to form an intermediate emulsion polymer containing a hydroxyl group from the functionality of the polyethylene glycol methacrylate. Finally, the hydroxyl group from the polyethylene glycol methacrylate is reacted with polyphosphoric acid to form the acrylic emulsion dispersant which is utilized for efficient wetting and grinding of the pigment.

    CLEARCOAT COMPOSITION WITH IMPROVED SCRATCH AND MAR RESISTANCE
    19.
    发明公开
    CLEARCOAT COMPOSITION WITH IMPROVED SCRATCH AND MAR RESISTANCE 有权
    具有提高抗刮擦KLARLACK组成

    公开(公告)号：EP1320565A1

    公开(公告)日：2003-06-25

    申请号：EP01959191.6

    申请日：2001-07-26

    Applicant: BASF CORPORATION

    Inventor： RAMESH, Swaminathan ,  GUPTA, Manoj

    IPC: C08G18/77 ,  C09D175/04

    CPC classification number: C09D175/04 ,  C08G18/4283 ,  C08G18/8029 ,  C08G18/8077

    Abstract: The polyisocyanate ester compound is a branched material having at least two ester linkages, at least four urethane linkages further from the center of the compound compared to the ester linkages, and at least one terminal isocyanate group for each urethane linkage, which isocyanate group may be blocked. The compound can be prepared by first reaction a polyol compound having at least two hydroxyl groups with a carboxylic acid compound having one carboxylic acid group and at least two hydroxyl groups to form a hydroxyl-functional ester product. The hydroxyl-functional ester products is then reacted with a polyisocyanate compound in which the isocyanate groups have different reactivities. The reaction with the polyisocyanate compound is carried out under conditions so that only one of the isocyanate groups is substantially reactive with the hydroxyl groups of the ester product of the first stage. Because each of the isocyanate is monofunctional under the reaction conditions, the product avoids building viscosity. In this way, the highly-functional isocyanate can be used for in a coating composition as a crosslimker without the increase in viscosity experienced with polyisocyanate crosslinkers of the prior art.

Patent Agency Ranking