中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

184 records (took 0.022 seconds)

    61.
    发明专利
    未知

    公开(公告)号：DE602005001622D1

    公开(公告)日：2007-08-23

    申请号：DE602005001622

    申请日：2005-03-16

    Applicant: DEGUSSA

    Inventor： LORTZ WOLFGANG ,  MENZEL FRANK

    IPC: C09G1/02 ,  C09K3/14 ,  H01L21/321

    Abstract: Aqueous dispersion for the chemical-mechanical polishing of metal surfaces, containing a metal oxide powder and a cationic, surface-active polymer, wherein the metal oxide powder is silicon dioxide, aluminium oxide or a mixed oxide of silicon dioxide and aluminium oxide, and the cationic, surface-active polymer is a polyallyl amine or polydiallyl amine dissolved in the dispersion and having a weight average molecular weight of less than 100,000 g/mol. The dispersion can be used for the chemical-mechanical polishing of metallic layers and of metallic films, which are applied to an insulating barrier layer.

    63.
    发明专利
    未知

    公开(公告)号：DE102004037118A1

    公开(公告)日：2006-03-23

    申请号：DE102004037118

    申请日：2004-07-30

    Applicant: DEGUSSA

    Inventor： PERLET GABRIELE ,  LORTZ WOLFGANG ,  BATZ-SOHN CHRISTOPH ,  WILL WERNER ,  REITZ SASCHA

    IPC: B01J13/00 ,  B01F3/12 ,  C09D5/02 ,  C09D5/32

    Abstract: An aqueous dispersion that can be used in the coating of glass, ceramics and metal surfaces is prepared by placing, in water, an aggregated titanium dioxide powder having a specific surface area of from 20 to 150 m2/g in such an amount that the desired dispersion contains at least 20 wt. % titanium dioxide, and at least one amino alcohol having from 1 to 6 carbon atoms, and at least one carboxylic acid selected from dibasic carboxylic acids and/or hydroxycarboxylic acids having from 2 to 6 carbon atoms. A pre-dispersion is produced by introducing energy in an amount of less than 200 kJ/m3. Then a dispersion is produced in which the aggregated titanium dioxide powder has a mean, volume-related aggregate diameter of less than 150 nm by grinding the pre-dispersion with a high-energy mill at a pressure of at least 500 bar.

    64.
    发明专利
    未知

    公开(公告)号：DE10317066A1

    公开(公告)日：2004-11-11

    申请号：DE10317066

    申请日：2003-04-14

    Applicant: DEGUSSA

    Inventor： LORTZ WOLFGANG ,  BATZ-SOHN CHRISTOPH ,  PERLET GABRIELE ,  WILL WERNER ,  SCHNEIDER GERRIT

    IPC: C01B13/14 ,  C01B33/141 ,  C01F7/02 ,  C03C1/00 ,  C09G1/02 ,  C09K3/14 ,  C01G1/02 ,  C01B33/14

    Abstract: Process for the production of an aqueous dispersion of pyrogenically produced metal oxide and metalloid oxide powders with a BET surface area of between 5 and 600 m2/g, with a metal oxide or metalloid oxide content in the dispersion of between 5 and 25 wt. %, comprising the following steps: water, which is optionally adjusted to pH values of between 2 and 4 by adding acids, is circulated from a receiving vessel via a rotor/stator machine, and metal oxide or metalloid oxide powder is introduced, using a feed device, into the shear zone between the slots in the rotor teeth and the stator slots, continuously or discontinuously and with the rotor/stator machine running, in a quantity such that a predispersion with a solids content of between 20 and 40 wt. % results, and, after all the metal oxide powder or metalloid oxide powder has been added, the feed device closes and shearing continues in such a way that the shear rate is in the range of between 10000 and 40000 s-1, and then, by dilution, the predispersion is adjusted to the desired solids content of the dispersion while maintaining the dispersing conditions.

    66.
    发明专利
    未知

    公开(公告)号：DE10256267A1

    公开(公告)日：2004-06-24

    申请号：DE10256267

    申请日：2002-12-03

    Applicant: DEGUSSA

    Inventor： BATZ-SOHN CHRISTOPH ,  SCHARFE THOMAS ,  LORTZ WOLFGANG

    IPC: B41M5/52 ,  C09C1/30 ,  C09D1/02 ,  C09D5/02 ,  C09D11/02 ,  G03F7/075

    Abstract: Stable, aqueous dispersion containing powders A and B,-wherein powder A is an amorphous silicon dioxide powder having an average particle diameter of 0.05 to 0.7 mum and a BET surface aa of 5 to 50 m 2 /g, and-wherein powder B is a metal oxide or non-metal oxide powder consisting of aggregates of intergrown primary particles and displays a primary particle size of 5 to 50 nm and a BET surface area of 50 to 400 m 2 /g. Coating slip to form an ink-absorptive coating using the dispersion and at least one hydrophilic binder. Absorptive medium using the coating slip and a support.

    DISPERSION, COATING COMPOSITION AND RECORDING MEDIUM
    67.
    发明专利
    DISPERSION, COATING COMPOSITION AND RECORDING MEDIUM 未知

    公开(公告)号：CA2422979A1

    公开(公告)日：2003-09-22

    申请号：CA2422979

    申请日：2003-03-21

    Applicant: DEGUSSA

    Inventor： SCHARFE THOMAS ,  LORTZ WOLFGANG ,  BATZ-SOHN CHRISTOPH

    IPC: B41M5/00 ,  B01J13/00 ,  B05D5/04 ,  B41M5/50 ,  B41M5/52 ,  C09C1/00 ,  C09C1/28 ,  C09D7/12 ,  C09D17/00 ,  C09D201/00 ,  B01F17/54 ,  B41J2/01

    Abstract: Stable, aqueous dispersion containing between 20 and 80 wt.% of metal oxide and/or non-metal oxide powders, which are present in the dispersion in the form of aggregates of primary particles, whereby the average diameter of the aggregates is between 10 nm and 300 nm and the average diameter of the primary particles is between 5 and 50 nm, characterised in that the powders comprise at least two types of powder, whereby the powder types at a given pH of the dispersion display the same surface charge sign and have a zeta potential that gives rise to an electrostatic repulsion between the particles that is greater than the van der Waals attraction between the powders and the average diameters of the primary particles differ by a factor of at least 1.5 between two powder types and in the dispersion the average aggregate diameter of the second and additional powder types displays 60 to 150% of the size of the first powder type and each powder type is present in the dispersion in a quantity of at least 1 wt.%. Coating composition produced with this dispersion and containing at least one hydrophilic binder. An recording medium containing this coating composition.

    69.
    发明专利
    未知

    公开(公告)号：DE19905820A1

    公开(公告)日：2000-05-04

    申请号：DE19905820

    申请日：1999-02-12

    Applicant: DEGUSSA

    Inventor： LUGINSLAND HANS-DETLEF ,  KRAFCZYK ROLAND ,  LORTZ WOLFGANG

    IPC: B60C1/00 ,  B29D30/06 ,  B60C11/00 ,  C08G77/28 ,  C08G77/392 ,  C08G77/50 ,  C08L9/00 ,  C08L21/00 ,  C08L83/08 ,  C08L83/14

    Abstract: Sulfur-functional polyorganosiloxanes containing side-chain groups which can bond with silicic acid (preferably alkoxy or haloalkoxy) and side-chain groups which can bond with elastomers, preferably mercapto, thiocyanato, disulfide or polysulfide groups. Sulfur-functional polyorganosiloxanes of formula (I), R -R = H, 1-4C alkyl, alkoxy, haloalkyl or haloalkoxy, phenyl, aryl or aralkyl; W = a group which can bond to silicic acid, preferably 1-4C alkoxy or haloalkoxy; Y = alkyl, haloalkyl, phenyl, aryl or aralkyl; Z = a 0-6C alkylidene group; A = a group which can form bonds with at least one elastomer in a rubber mixture, i.e. mercapto or thiocyanato if q = 1, or disulfide or polysulfide (Sx) if q = 2; x = 2-10; (k+m+n+p) = 3 or more; k = n = 0 (optionally). Independent claims are also included for (a) a process for the production of (I) by reacting compounds of formula (IV) with compounds of formula MSH, MSCN or M2Sx, or with M2S and sulfur, in an alcohol W-H at 20-150 degrees C under normal pressure, optionally with a catalyst, using compounds in which X = halogen; M = a metal ion; (b) rubber mixtures containing (I); (c) a process for the production of rubber mixtures by using (I) and other filler(s) in addition to rubber; (d) molded products obtained from these rubber mixtures.

Patent Agency Ranking