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| Number | Title | Issue Date |
| 7557157 | Polymerization of macrocyclic polyester oligomers at elevated temperature using rare earth element catalysts Compounds containing a lanthanide rare earth element or yttrium are effective catalysts for the polymerization of macrocyclic polyester oligomers. The catalysts are stable at elevated temperatures, and the polymerization is rapid, resulting in high monomer conversio... | 07/07/2009 |
| 7550531 | Polymerization of macrocyclic polyester oligomers using metal amide and metal alkoxide catalysts Metal amide and metal alkoxide species have been found to catalyze the ring opening polymerization of macrocyclic polyester oligomers. The catalysts provide rapid polymerization, high monomer conversion, high molecular weight, and a mechanically sound material. ... | 06/23/2009 |
| 7514499 | Ring opening polymerization of cyclic amides using N-heterocyclic carbene catalysts N-heterocyclic carbenes are effective catalysts for the ring opening polymerization of cyclic amides. The catalysts provide rapid polymerization, high monomer conversion, high molecular weight, and a mechanically sound material. ... | 04/07/2009 |
| 7488772 | Polymerization of macrocyclic polyester oligomers using N-heterocyclic carbene and metal amide or metal alkoxide catalyst Mixtures or adducts of N-heterocyclic carbenes with metal amides or metal alkoxides are effective catalysts for the polymerization of macrocyclic polyester oligomers. The catalysts are stable at polymerization temperatures, and the polymerization is rapid, resulting... | 02/10/2009 |
| 7342068 | Aqueous polyurethane dispersion and method for making and using same Aqueous polyurethane dispersions comprising polyurethane polymer and methods for making and using same are disclosed herein. In one aspect of the present invention, aqueous polyurethane dispersions, comprising a polyurethane polymer having a weight average molecular... | 03/11/2008 |
| 7309756 | Methods for converting linear polyesters to macrocyclic oligoester compositions and macrocyclic oligoesters Macrocyclic oligoesters and compositions comprising macrocyclic oligoesters are prepared from intermediate molecular weight polyesters. In one embodiment, a diol is contacted with a dicarboxylic acid or a dicarboxylate in the presence of a catalyst to produce a comp... | 12/18/2007 |
| 7241814 | Preparation of metallic nanoparticles with shell-crosslinked micelle as mold A method for the preparation of a dispersion of fine particles characterized in that the micelles are ones which have been formed in a aqueous medium with an amphiphilic block copolymer represented by the general formula PB and in which the shell of each micelle has... | 07/10/2007 |
| 7220792 | Water resistant permanent antistatic thermoplastic composition A water resistant permanent antistatic thermoplastic composition contains about 100 parts by weight of a thermoplastic polymer, such as polycarbonate or a blend thereof, about 0.1 to about 10 parts by weight of an antistatic agent, and about 0.1 to about 10 parts by... | 05/22/2007 |
| 7160975 | Methacrylates as stabilizers for polymer polyols This invention relates to ethylenically unsaturated macromers which contain reactive unsaturation, and to a process for preparing these ethylenicallly unsaturated macromers which contain reactive unsaturation. The process of preparing these ethylenically unsaturated... | 01/09/2007 |
| RE39182 | Process for the preparation of thermally stable polyoxymethylene copolymers A process for the preparation of polyoxymethylene copolymers, wherein 1,3,5-trioxane is polymerized with generally known comonomers in the presence of a strong protonic acid initiator and in the presence of a formaldehyde dialkyl acetal, and wherein the initiator is... | 07/11/2006 |
| 6881764 | Polyurethane composition with glass cullet filler and method of making same There is disclosed a polyurethane composition with a glass cullet filler. The composition comprises at least one polyol, an isocyanate, a catalyst and glass cullet. The glass cullet has an average particle size of not greater than 100 mesh and not less than 325 mesh... | 04/19/2005 |
| 6730715 | Dental restorative composition, dental restoration, and a method of use thereof A curable dental restorative composition comprising about 1 to about 90 wt %, based on the total weight of the composition, of a filler component, the filler component comprising about 10 to 100 wt %, based on the total weight of the filler component, of a surface r... | 05/04/2004 |
| 6486225 | Photocurable composition A photocurable composition comprising (A) 100 parts by weight of a compound having an ethylenically unsaturated group, (B) from 0.001 to 5 parts by weight of a cationic dye having an absorption maximum wavelength in the wavelength region of from 400 to 1,... | 11/26/2002 |
| 6417263 | Heat curable silicone rubber composition with improved resistance to engine oils and coolants A heat curable silicone rubber composition, having improved resistance to engine coolants and oils, including long-life coolants and synthetic motor oils, comprises: (A) 100 parts by weight of an organosiloxane polymer base comprising an organosiloxane po... | 07/09/2002 |
| 6362251 | Dental material comprising porous glass ceramics, porous glass ceramics, processes and use Dental material based on polymerizable (for example ethylenically unsaturated) monomers, epoxides, ormocers, liquid crystal monomers, oxethanes, spiro-orthoesters or spiro-carbonates as binders, a catalyst for cold, hot and/or photo-polymerization, and fi... | 03/26/2002 |
| 6346324 | Cis-bridged metal complexes and catalyst systems containing the same Disclosed is a cis-bridged metal complex of the formula (I) ##STR1## where R5 is an electron-withdrawing radical, and catalyst systems based on these complexes for copolymerizing carbon monoxide and olefinically unsaturated compounds.... | 02/12/2002 |
| 6210520 | Screen printable thermally curing conductive gel The present invention provides a novel screen printable thermosetting composition for forming thermally conductive interface and a method of using the same. The composition is used to promote the transfer of heat from a source of heat such as an electroni... | 04/03/2001 |
| 6162850 | Heat resistant emulsion resins The invention is high temperature emulsion composition comprising borax and a substantially water-insoluble polymer prepared by aqueous suspension polymerizing a blend of monomers, said blend comprising a plasticizing amount by weight of at least one plas... | 12/19/2000 |
| 6103867 | Catalyst systems for producing copolymers of carbon monoxide and olefinically unsaturated compounds The catalyst systems comprise as active constituents a) a metal complex of the formula (I) ##STR1## b) one or more Lewis or protic acids or a mixture of Lewis and protic acids.... | 08/15/2000 |
| 6080834 | Titanium-containing catalyst composition and processes therefor and therewith A catalyst composition is disclosed. The composition comprises a titanium compound, a complexing agent, a solvent, and optionally a cocatalyst. The cocatalyst can be a cobalt/aluminum catalyst, an antimony compound, or combinations thereof. Also disclosed... | 06/27/2000 |
| 6077885 | Chromate-free protective coatings The invention provides chromate-free coating mixtures, and coatings formed from these mixtures, that protect an underlying aluminum or aluminum alloy substrate from corrosion. The coating mixtures include a continuous phase selected from organic polymeric... | 06/20/2000 |
| 6020424 | Screen printable thermally curing conductive gel The present invention provides a screen printable thermosetting composition for forming thermally conductive interface and a method of using the same. The composition is used to promote the transfer of heat from a source of heat such as an electronic devi... | 02/01/2000 |
| 5994455 | Process for the preparation of thermally stable polyoxymethylene copolymers A process for the preparation of polyoxymethylene copolymers, wherein 1,3,5-trioxane is polymerized with generally known comonomers in the presence of a strong protonic acid initiator and in the presence of a formaldehyde dialkyl acetal, and wherein the i... | 11/30/1999 |
| 5977232 | Formaldehyde-free, accelerated cure, aqueous composition for bonding glass fiber heat-resistant nonwovens A formaldehyde-free curable aqueous composition comprising: (a) a polyacid comprising at least two carboxylic acid groups, anhydride groups, or salts of the polyacid thereof; (b) an active hydrogen compound containing at least two active hydrogen groups select... | 11/02/1999 |
| 5969036 | Epoxy-containing die-attach compositions In accordance with the present invention, there are provided novel compositions for attaching semiconductor devices to substrates. Invention compositions comprise liquid monomer vehicle comprising hydrophobic cyanate ester monomer(s) and epoxy monomer(s),... | 10/19/1999 |
| 5945478 | High speed extrusion Extrusion rheology of thermoplastic polymer as manifested by surface smoothness is improved by incorporating foam cell nucleating agents into the polymer and extruding the polymer under laminar flow to form unfoamed extrudate.... | 08/31/1999 |
| 5922799 | Organopolysiloxane compositions which can be crosslinked to give flame-resistant elastomers The use is described of boron compounds chosen from the group consisting of boron carbide and metal borides mixed with non-reinforcing fillers, with the proviso that at least 75% by weight of the non-reinforcing fillers are heat-stable up to 1200° C., as... | 07/13/1999 |
| 5905138 | Process for the preparation of copolymers A process for the preparation of a copolymer of carbon monoxide with an olefinically unsaturated compound in which a powder of a copolymer of carbon monoxide with an olefinically unsaturated compound is suspended in a liquid diluent. The suspension is con... | 05/18/1999 |
| 5880194 | Firewall sealant A curable composition which contains an alkenyl group containing polyorganosiloxane, an organosilicon compound having two silicon-bonded hydrogen atoms, a hydrosilylation reaction catalyst, and a glass frit, which is suitable, upon cure, for use as a fire... | 03/09/1999 |
| 5859105 | Organosilicon-containing compositions capable of rapid curing at low temperature Described is an organosilicon-containing composition suitable for use as an adhesive and capable of rapid curing at low temperature. The composition comprises about 10 to 80 wt. % of an organic compound component and about 20 to 90 wt. % of one of boron n... | 01/12/1999 |
| 5843526 | Protective compositions and methods of making the same The present invention is directed to compositions derived from polymers containing metal-nitrogen bonds, which compositions exhibit, among other things, desirable oxidation resistance, corrosion resistance and hydrolytic stability when exposed to adverse ... | 12/01/1998 |
| 5756656 | Process for the prepartion of copolymers A process for the preparation of a copolymer of carbon monoxide with an olefinically unsaturated compound, comprising copolymerizing the monomers in the presence of a Group VIII metal containing catalyst composition and in the presence of an olefinically ... | 05/26/1998 |
| 5750642 | Process for the preparation of copolymers A process for the preparation of copolymers of carbon monoxide with an olefinically unsaturated compound comprising copolymerizing the monomers in the presence of a catalyst composition based upon (a) a salt of a Group VIII metal, and (b) a cation which is sel... | 05/12/1998 |
| 5747638 | Process for the preparation of a copolymer of carbon monoxide A process for the copolymerization of carbon monoxide with ethene and optionally another olefinically unsaturated compound in which process the monomers are copolymerized in the presence of a liquid diluent and a catalyst composition which is based on (a)... | 05/05/1998 |
| 5734010 | Process for the preparation of copolymers of carbon monoxide and at least one compound containing an alkenyl unsaturation Linear alternating copolymers of carbon monoxide and at least one compound containing an alkenyl unsaturation are obtained by reaction between carbon monoxide and at least one compound containing an alkenyl unsaturation, in a solvent which is liquid under... | 03/31/1998 |
| 5717060 | Process for the preparation of copolymers based on carbon monoxide and at least one compound containing an alkenyl unsaturation An improved process is described for the preparation of alternating linear copolymers based on carbon monoxide and at least one compound containing an alkenyl unsaturation which comprises reacting in a liquid solvent under the operating conditions, a mixt... | 02/10/1998 |
| 5688457 | High speed extrusion Extrusion theology of thermoplastic polymer as manifested by surface smoothness is improved by incorporating foam cell nucleating agents into the polymer and extruding the polymer under laminar flow to form unfoamed extrudate.... | 11/18/1997 |
| 5670611 | Process for the copolymerization of carbon monoxide with an olefinically unsaturated compound A process for the copolymerization of carbon monoxide with an olefinically unsaturated compound in which a solid particulate material is suspended in a liquid diluent in which the polymer to be produced forms a suspension. The monomers are contracted in t... | 09/23/1997 |
| 5668249 | Process for the copolymerization of carbon monoxide with an olefinically unsaturated compound A process for the copolymerization of carbon monoxide with an olefinically unsaturated compound in which the monomers are contacted in the presence of a liquid diluent and a protic compound with a catalyst composition which is based on a source of a Group... | 09/16/1997 |
| 5668212 | Aqueous organosiloxane liquid composition and its use An aqueous organosiloxane liquid composition in a homogeneous state is disclosed, which contains (A) aqueous modified organosilicon compound having at least one polyether group as a side chain, (B) liquid organopolysiloxane, (C) a cross-linking agent, (D)... | 09/16/1997 |
