Patent application number | Description | Published |
20100129642 | POLYMERIC FILM OR COATING COMPRISING HEMICELLULOSE - A film forming composition and a polymeric film or coating comprising hemicellulose and at least one component selected from the group consisting of plasticizers, cellulose, and an oligomer or polymer, is disclosed, said polymeric film or coating further comprising at least one additive/reactant increasing the liquid/moisture resistance and mixed with and/or reacting with the hemicellulose and said at least one component before or in conjunction with the forming of the film or coating. The use of said film or coating is also disclosed. Further, a method for the manufacture of said polymeric film or coating is disclosed, as well as a method for improving the liquid/moisture resistance of hemicellulose. Said at least one additive/reactant increasing the liquid/moisture resistance is either a cross-linking agent or a hydrophobizing agent. In another preferred embodiment the additive is a 2:1 layered phyllosilicate. The additive forms a nanocomposite with the hemicellulose as a matrix. The hemicellulose/phyllosilicate nanocomposite reinforced material provides excellent liquid/moisture resistance. Heat treatment of all of the films increases their liquid/moisture resistance and reduces their oxygen permeability. | 05-27-2010 |
20100263903 | Polyolefin Composition for Medium/High/Extra High Voltage Cables with Improved Electrical Breakdown Strength - The present invention relates to a polyolefin composition comprising a polyolefin and aromatic compounds, comprising a naphthyl-group or at least two linked phenyl-groups, as stabilizers for use in producing medium and high voltage cables with improved electrical breakdown strength. | 10-21-2010 |
20110220392 | POLYOLEFIN COMPOSITION FOR MEDIUM/EXTRA/HIGH VOLTAGE CABLES COMPRISING BENZOPHENONE-TYPE VOLTAGE STABILIZER - The present invention relates to a polyolefin composition comprising (i) a polyolefin (A), (ii) a benzophenone derivative (B) comprising the, preferably consisting of the, structural unit according to the following formula (I): wherein one or more of the Carbon atoms in the phenyl rings to which residue R1, R2, R3, R4, R5, R6, R7, R8, R9 or R10 is attached may also be a heteroatom, such as N, in which case the respective residue R1, R2, R3, R4, R5, R6, R7, R8, R9 or R10 is not present; R1, R2, R3, R4, R5, R6, R7, R8, R9 and R10 independently are hydrogen, or a hydrocarbyl group which may contain heteroatoms; or at least two of said R1, R2, R3, R4, R5, R6, R7, R8, R9 and R10 together with the ring atoms of the ring system of formula (I) they are attached to, form a further aromatic or non-aromatic ring fused to the ring system of formula (I), and wherein the ring system of formula (I) with said at least one fused further ring may further bear one to eight substituents, R1′ to R8′ each of which are independently selected from said same groups as R1 to R10; and n=1 to 10; with the proviso that (i) at least one of said R1, R2, R3, R4, R5, R6, R7, R8, R9 or R10, or if present, at least one of said R1′ to R8′, is a hydrocarbyl group which may contain heteroatoms and which contains an amine group. | 09-15-2011 |
20130025910 | POLYOLEFIN COMPOSITION FOR MEDIUM/HIGH/EXTRA HIGH VOLTAGE CABLES COMPRISING BENZIL-TYPE VOLTAGE STABILISER - The present invention relates to a polyolefin composition comprising (i) a polyolefin (A), (ii) a benzil derivative (B) comprising the, preferably consisting of the, structural unit according to the following formula (I). wherein one or more of the carbon atoms in the phenyl rings to which residue R1, R2, R3, R4, R5, R6, R7, R8, R9 or R10 is attached may also be a heteroatom, such as N, in which case the respective residue R1, R2, R3, R4, R5, R6, R7, R8, R9 or R10 is not present; R1, R2, R3, R4, R5, R6, R7, R8, R9 and R10 independently are hydrogen, or a hydrocarbyl group which may contain heteroatoms; or at least two of said R1, R2, R3, R4, R5, R6, R7, R8, R9 and R10 together with the ring atoms of the ring system of formula (I) they are attached to, form a further aromatic or non-aromatic ring fused to the ring system of formula (I), and wherein the ring system of formula (I) with said at least one fused further ring may further bear one to eight substituents, R1′ to R8′, each of which are independently selected from said same groups as R1 to R10; and n=2 to 9; with the proviso that (i) at least one of said R1, R2, R3, R4, R5, R6, R7, R8, R9 or R10, or if present, at least one of said R1′ to R8′, is a hydrocarbyl group which may contain one or more heteroatoms. | 01-31-2013 |
20130199820 | SILANE CROSSLINKABLE POLYMER COMPOSITION - The invention relates to a crosslinkable polymer composition comprising (a) a polyolefin bearing hydrolysable silane groups and a silanol condensation catalyst compound, as well as to an article, preferably a cable, thereof. Also the use of the silanol condensation catalyst compound for crosslinking an article, preferably a layer of a cable is provided. | 08-08-2013 |
20130313000 | POLYMER COMPOSITION - The invention relates to a polymer composition comprising a polyolefin (A) and an antioxidant. | 11-28-2013 |
20130341066 | Polyolefin Composition for Medium/High/Extra High Voltage Cables with Improved Electrical Breakdown Strength - This application relates to a polyolefin composition comprising a polyolefin and an aromatic compound. The polyolefin composition can be used in producing medium and high voltage cables with improved electrical breakdown strength. | 12-26-2013 |
20140093724 | POLYMERIC FILM OR COATING COMPRISING HEMICELLULOSE - A film forming composition and a polymeric film or coating comprising hemicellulose is disclosed, said polymeric film or coating further comprising at least one additive/reactant increasing the liquid/moisture resistance. The use of said film or coating is also disclosed. Further, a method for the manufacture of said polymeric film or coating is disclosed, as well as a method for improving the liquid/moisture resistance of hemicellulose. The hemicellulose/phyllosilicate nanocomposite reinforced material provides excellent liquid/moisture resistance. | 04-03-2014 |
20140199547 | SEMICONDUCTIVE POLYMER COMPOSITION - The invention relates to a crosslinkable semiconductive polymer composition comprising (a) a polyolefin, carbon black and a compound (b), to a cable, preferably to a crosslinkable comprising the polymer composition, to a production thereof, and preferably to a crosslinked cable comprising the polymer composition of the invention. | 07-17-2014 |
20140275427 | NEW POLYETHYLENE - The present invention relates to a low density polyethylene having a molecular weight distribution Mw/Mn which is greater than 15, a storage modulus G′ (5 kPa) which is above 3000 and a vinylidene content which is at least 15/100k C, compositions, a process for production of the low density polyethylene, a continuous ethylene polymerization method for introducing vinylidene in a low density polyethylene, a method for an extrusion coating process, an article, e.g. an extrusion article, and use in extrusion coating. | 09-18-2014 |
20140295186 | CABLE COMPRISING A SILANE CROSSLINKABLE POLYMER COMPOSITION - The invention relates to a cable comprising a conductor surrounded by at least one crosslinkable layer comprising a polymer composition which comprises (a) a polyolefin bearing hydrolysable silane groups and a silanol condensation catalyst compound, as well as to a production process of such cable. | 10-02-2014 |
20150031843 | ETHYLENE POLYMERIZATION PROCESS USING AN INHIBITOR - The present invention relates to an ethylene homo- or copolymerization process, characterized in that an inhibitor is added to the reaction mixture or any of its components before the reaction mixture is fed to the reaction zone. The present invention further relates to the use of an inhibitor to reduce fouling in an ethylene homo- or copolymerization process. | 01-29-2015 |
20150038655 | HIGH-PRESSURE RADICAL ETHYLENE CO-POLYMERIZATION PROCESS WITH A REDUCED TEMPERATURE OF THE REACTION MIXTURE PRIOR TO INTRODUCTION INTO THE REACTION ZONE - The present invention relates to a high-pressure radical ethylene polymerization process in which ethylene is polymerized with a polyunsaturated olefin comprising at least 6 carbon atoms and at least two non-conjugated double bonds of which at least one is terminal; and/or an alpha-omega-divinylsiloxane according to Formula (I) wherein R | 02-05-2015 |
20150073104 | HIGH-PRESSURE RADIAL ETHYLENE POLYMERIZATION PROCESS IN WHICH ETHYLENE IS POLYMERIZED WITH A SPECIFIC POLYUNSATURATED OLEFIN GRADE - The present invention relates to a high-pressure radical ethylene polymerization process in which ethylene is polymerized with a polyunsaturated olefin comprising at least 6 carbon atoms and at least two non-conjugated double bonds of which at least one is terminal, characterized in that a polyunsaturated olefin grade is used as a starting material which yields a percentage of less than 6.3% in the zero conversion test or which has a decomposition temperature as measured by DSC of 130° C. or more. | 03-12-2015 |