Patents Assigned to Perstorp AB
  • Patent number: 5523010
    Abstract: A process of lubricating or releasing comprising disposing a lubricant release composition between frictional contacting parts or between parts to be released from each other, respectively, wherein the composition includes 5-alkyl-1,3-dioxane-5-methanol and esters and/or ethers thereof, the alkyl in the aforementioned compounds being methyl or ethyl.
    Type: Grant
    Filed: December 22, 1994
    Date of Patent: June 4, 1996
    Assignee: Perstorp AB
    Inventors: Kent Sorensen, Lars-Olof Garpvall, Mats Johansson
  • Patent number: 5433336
    Abstract: Storage container, preferably a storage tray (1) of plastic having detachable partition walls (2), the container being provided with opposite vertical recesses or pairs of vertical ledges (5) along the inner side of the two long sides (3, 4). The container (1) comprises an inwards directed horizontal ledge (6) at the top along the inner side of each of the two long sides (3, 4), locking means (7) arranged in the upper edge of the ledges (6) on the two long sides (3, 4) of the container (1) in connection with each recess or pair of ledges (5), partition walls (2) including a lower part (8) and an upper part (9) connected to each other by an integrated hinge (10), whereby the parts (8, 9 and 10) are made of plastic in one piece, the upper part (9) being provided with locking means (11) along each short side which locking means (1 1) arc intended to co-operate with the locking means (7) on the container (1).
    Type: Grant
    Filed: August 31, 1992
    Date of Patent: July 18, 1995
    Assignee: Perstorp AB
    Inventor: Karl-Gustaf Kristoffersson
  • Patent number: 5418301
    Abstract: The invention relates to a dendritic macromolecule of the polyester type comprising a central initiator molecule or initiator polymer having one or more reactive hydroxyl groups (A). The groups (A) are under formation of an initial tree structure bonded to reactive carboxyl groups (B) of a monomeric chain extender having the two reactive groups (A) and (B). The tree structure is optionally extended and further branched from the initiator molecule or initiator polymer by addition of further molecules of a monomeric chain extender by means of bonding between the reactive groups (A) and (B) thereof and is thereafter optionally further extended by reaction with a chain stopper. The invention also comprises a process for preparation of the dendritic macromolecule.
    Type: Grant
    Filed: July 13, 1994
    Date of Patent: May 23, 1995
    Assignee: Perstorp AB
    Inventors: Anders Hult, Eva Malmstrom, Mats Johansson, Kent Sorensen
  • Patent number: 5407924
    Abstract: A method of preventing or alleviating pain by administering to a human or other mammal in need thereof of a pain preventing or alleviating effective amount of a pharmaceutical composition comprising at least one specific isomer of inositol triphosphate.
    Type: Grant
    Filed: December 1, 1993
    Date of Patent: April 18, 1995
    Assignee: Perstorp AB
    Inventor: Matti Siren
  • Patent number: 5354792
    Abstract: The invention relates to a flowability improving agent comprising a combination, calculated on a dry product, of: A) 60-99% by weight of a sulphonated melamine-formaldehyde resin, a sulphonated melamine-urea-formaldehyde resin or a sulphonated naphthalene-formaldehyde resin; C) 0.5-40% by weight of a boron containing polyhydroxycarboxylic acid or a water-soluble salt of such an acid and optionally D) 0.5-30% by weight of a compound with formulaAr O--(R.sub.1).sub.n --R.sub.2where Ar is unsubstituted or substituted benzene moiety or naphthalene moiety, R.sub.1 is an oxyethylene group; --CH.sub.2 CH.sub.2 O--or an oxypropylene group; ##STR1## an oxyethylene chain or an oxypropylene chain with up to fifteen oxyethylene groups or oxypropylene groups or a combination of oxyethylene groups and oxypropylene groups to a chain where the sum of these groups is at most fifteen; the mean value n for n is 1-15 and R.sub.2 is hydrogen or a phosphonate group with the formula ##STR2## where M.sub.1 and M.sub.
    Type: Grant
    Filed: August 6, 1992
    Date of Patent: October 11, 1994
    Assignee: Perstorp AB
    Inventors: Lars-Inge Olsson, Kent Hamacek
  • Patent number: 5342832
    Abstract: A method of preventing or alleviating tissue damage, diabetes and complications thereof, bone disorders, disorders related to transplantation, disorders related to abnormal levels of lipoproteins, cardiovascular disease and inflammatory disorders by providing a mammal having one or more of the above diseases with a preventing or an alleviating effective amount of a compound having the formula C.sub.6 H.sub.6 (OH).sub.6-n (OPO.sub.3 H.sub.2).sub.n, where n is an integer of 1 or 2.
    Type: Grant
    Filed: August 21, 1992
    Date of Patent: August 30, 1994
    Assignee: Perstorp AB
    Inventor: Matti Siren
  • Patent number: 5330979
    Abstract: A method of preventing or alleviating renal disorders by administering to a human or an animal in need thereof a pharmaceutical composition comprising an effective amount amount of at least one specific isomer of inositol trisphosphate sufficient to obtain said prevention or alleviation.
    Type: Grant
    Filed: June 18, 1992
    Date of Patent: July 19, 1994
    Assignee: Perstorp AB
    Inventors: Matti Siren, Bertil Lofkvist, Lars Edvinsson
  • Patent number: 5324863
    Abstract: Process for the production of di-trimethylolpropane (di-TMP), which comprises subjecting a solution containing less than 3 per cent by weight, preferably less than 1 per cent by weight of water, free trimethylolpropane (TMP) and/or partial ester between TMP and a monocarboxylic acid or its anhydride having 1-4 carbon atoms in the chain, which partial ester on average contains 1.0-2.5, preferably 1.0-2.0 ester groups per molecule to an etherification reaction by heating to 50.degree.-200.degree. C., preferably 70.degree.-190.degree. C. in the presence of an acid catalyst in solid state or in dissolved state until at most 30%, preferably at most 15% of the total content of free TMP and partial ester of TMP in the solution has been etherified to free di-TMP and partial ester of di-TMP respectively, at the same time continuously removing etherification water formed at the etherification reaction under vacuum at a pressure of 0.1-200 mm Hg, preferably 0.
    Type: Grant
    Filed: March 24, 1993
    Date of Patent: June 28, 1994
    Assignee: Perstorp AB
    Inventors: Carl-Axel Sjogreen, Goran Axelsson
  • Patent number: 5284839
    Abstract: The present invention relates to the use of inositoltrisphosphate (IP.sub.3) for the preparing of a medicament effective as a neuropeptide Y- (NPY-) antagonist and to a pharmaceutical composition comprising at least one specific isomer of IP.sub.3 and a pharmaceutically active compound effective in the cardiovascular, renal and/or cerebral area.
    Type: Grant
    Filed: February 11, 1993
    Date of Patent: February 8, 1994
    Assignee: Perstorp AB
    Inventors: Matti Siren, Lars Edvinsson
  • Patent number: 5278332
    Abstract: New derivatives of cyclohexane in substantially pure form suitable as pharmaceutical, foodstuff or as a stabilizer.
    Type: Grant
    Filed: August 5, 1992
    Date of Patent: January 11, 1994
    Assignee: Perstorp AB
    Inventors: Matti Siren, Lars Perrson
  • Patent number: 5274161
    Abstract: New derivatives of cyclohexane in substantially pure form suitable as a pharmaceutical, foodstuff or as a stabilizer.
    Type: Grant
    Filed: August 5, 1992
    Date of Patent: December 28, 1993
    Assignee: Perstorp AB
    Inventors: Matti Siren, Lars Perrson
  • Patent number: 5225349
    Abstract: Inositol phosphates and/or derivatives thereof are analytically separated, whereby a quaternary amine is mixed with an aqueous solution containing one or more inositol phosphates and/or derivatives thereof. The aqueous solution obtained is fed to an analytical column containing a solid non-polar phase and the different constituents thereof are detected.
    Type: Grant
    Filed: February 19, 1992
    Date of Patent: July 6, 1993
    Assignee: Perstorp AB
    Inventors: Hubertus Irth, Ruth Kornfeldt, Lars Persson
  • Patent number: 5157140
    Abstract: New derivatives of cyclohexane in substantially pure form suitable as a pharmaceutical, foodstuff or as a stabilizer.
    Type: Grant
    Filed: December 29, 1989
    Date of Patent: October 20, 1992
    Assignee: Perstorp AB
    Inventor: Matti Siren
  • Patent number: 5135923
    Abstract: A method of reducing the negative effect of cadmium or aluminum ion or free-radicals in body tissues and a method of alleviating cardiovascular diseases and conditions by administering to a human or an animal a pharmaceutical composition comprising an amount of at least one specific isomer of inositol triphosphate sufficient to obtain said alleviation.
    Type: Grant
    Filed: February 1, 1991
    Date of Patent: August 4, 1992
    Assignee: Perstorp AB
    Inventor: Matti Siren
  • Patent number: 5128332
    Abstract: A method of preventing or alleviating certain conditions by administering to a human or an animal a pharmaceutical composition comprising an amount of at least one specific isomer of inositol trisphosphate sufficient to obtain said prevention or alleviation.
    Type: Grant
    Filed: September 11, 1990
    Date of Patent: July 7, 1992
    Assignee: Perstorp AB
    Inventors: Matti Siren, Bertil Lofkvist, Lars Edvinsson
  • Patent number: 5057507
    Abstract: A method of preventing or alleviating tissue or bone damage in mammals is disclosed. The method comprises administering, to a mammal, a tissue damage or a bone damage preventing or alleviating effective amount of a pharmaceutical composition which includes at least one isomer of inositol trisphosphate.
    Type: Grant
    Filed: January 24, 1991
    Date of Patent: October 15, 1991
    Assignee: Perstorp AB
    Inventor: Matti Siren
  • Patent number: 5051411
    Abstract: A method of reducing the negative effects of heavy metals and a method of preventing or alleviating immunodeficiency, hypertension and dermatitis in mammals is disclosed. In these methods pharmaceutical compositions are administered to a mammal in need thereof. The particular pharmaceutical composition includes a reducing, preventing or alleviating effective amount, for the particular condition, of at least one isomer of inositol triphosphate.
    Type: Grant
    Filed: June 19, 1989
    Date of Patent: September 24, 1991
    Assignee: Perstorp AB
    Inventor: Matti Siren
  • Patent number: D343941
    Type: Grant
    Filed: December 20, 1991
    Date of Patent: February 1, 1994
    Assignee: Perstorp AB
    Inventors: Soini Andersson, Stefan Lindh, Stig Svensson
  • Patent number: D371670
    Type: Grant
    Filed: December 20, 1994
    Date of Patent: July 9, 1996
    Assignee: Perstorp AB
    Inventor: Robin Carlsson
  • Patent number: D371882
    Type: Grant
    Filed: June 14, 1995
    Date of Patent: July 16, 1996
    Assignee: Perstorp AB
    Inventor: Karl-Gustaf Kristoffersson