Abstract: Supported catalysts having a high sintering stability and comprising one or more noble metal cluster carbonyl compounds of the formula (1)
[HaMbNcLd(CO)x]n−An+
and their use for the dehydrogenation, hydrogenation and oxidation of organic compounds where
M and N
are, independently of one another, one or more metals
selected from the group consisting of Pt, Rh, Ir, Os, Ru, Ag,
Pd, Au, Ni, Fe, Co, Cu, Re, Mn;
L
is one or more neutral or anionic ligands which may be
identical or different;
(A)n+
is one or more cations which balance the charge of the
complex;
a
is an integer from 0 to 10, preferably from 0 to 6;
b
is an integer from 2 to 60;
c
is an integer from 0 to 30;
d
is an integer from 0 to 60;
x
is an integer from 1 to 120;
n
is the total charge of the complex which results from the
individual charges of the constituents and is greater than 0,
wher
Type:
Grant
Filed:
October 15, 1998
Date of Patent:
April 16, 2002
Assignee:
Hoechst Research & Technology
Inventors:
Alfred Hagemeyer, Harald Werner, Uwe Dingerdissen, Klaus Kühlein, John Meurig Thomas, Brian F. G. Johnson, D. S. Shephard, T. Maschmeyer
Abstract: The invention relates to the isolation of the prepro form of cathepsin L, of its leader sequence, of cathepsin L and of the affiliated propeptide from ciliates, in particular Paramecium, to the use of these peptides and to a process for preparing cathepsin L from ciliates.
Type:
Grant
Filed:
April 13, 1998
Date of Patent:
November 6, 2001
Assignees:
Hoechst Research & Technology, Deutschland GmbH & Co. KG
Abstract: This invention relates to a coated carrier for development of an electrostatically charged image, comprising carrier core particles coated with a coating resin; wherein the coating resin at least includes a polyolefin resin having a cyclic structure; a polyolefin resin of a cyclic structure having an intrinsic viscosity (i.v.) of 0.25 dl/g or more, a heat distortion temperature (HDT) by DIN53461-B of 70 .degree. C. or higher, and a number average molecular weight of 7,500 or more and a weight average molecular weight of 15,000 or more, as measured by GPC, is contained in an amount of less than 50% by weight based on the entire coating resin; and the coating resin is used for coating in an amount of 1 to 30% by weight based on the carrier core particles. The present invention can obtain a coated carrier which exhibits high anti-spent toner effect and excellent charge control properties during development with a dry toner.
Type:
Grant
Filed:
May 20, 1998
Date of Patent:
May 30, 2000
Assignees:
Hoechst Research & Technology, Deutschland GmbH & Co. KG