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| Number | Title | Issue Date |
| 7074851 | Method for making stabilised polyamide compositions The invention relates to a process for preparing stabilized compositions based on polyamide. The stabilizer is a phosphorus stabilizer selected from phosphorous acid and hypophosphorous acid. It is introduced before or during the polymerization of the polyamide. The... | 07/11/2006 |
| 6956074 | Polyurethane composition There is a provided a polyurethane composition, which exhibits an excellent property of preventing discoloring or coloring not only by oxidized nitrogen gases but also by heat, characterized in that (A) a hindered phenol antioxidan... | 10/18/2005 |
| 6740706 | Method for obtaining coating compositions having reduced VOC The invention relates to an economical method of making a polymer having reduced VOCs and coating compositions containing such polymers. In one embodiment, the method of invention requires providing a reactant mixture (a), providing a solvent mixture (b) comprising ... | 05/25/2004 |
| 6713569 | Thermoplastic silicone elastomers formed from nylon resins A method for preparing a thermoplastic elastomer is disclosed, said method comprising (I) mixing (A) a rheologically stable polyamide resin having a melting point or glass transition temperature of 25° C. to 275° C., (B) a silicone base comprising | 03/30/2004 |
| 6506838 | Modified oxymethylene polymers Modified oxymethylene polymers comprising a linear polymer of oxymethylene repeat units, blocked at one end by at least one terminal group selected from the group consisting of an alkylene oxide as an adduct to alcohol and an alkylene oxide as an adduct t... | 01/14/2003 |
| 6433074 | Process for producing vinyl chloride polymer Provided is a vinyl chloride polymer production process comprising the steps of polymerizing in an aqueous medium a vinyl chloride monomer alone or a mixture of monomers including the vinyl chloride monomer, and adding an antioxidant to starting materials... | 08/13/2002 |
| 6362287 | Thermoplastic silicone elastomers formed from nylon resins A method for preparing a thermoplastic elastomer is disclosed, said method comprising (I) mixing (A) a rheologically stable polyamide resin having a melting point or glass transition temperature of 25° C. to 275° C., (B) a silicone base comprising (B') 100 p... | 03/26/2002 |
| 6242555 | Light-stable elastomeric polyurethane mouldings and process for the production thereof A process for the production of micro-cellular or non-cellular, light-stable elastomeric, flexible or semi-flexible polyurethane moldings which are especially suited for window encapsulation applications from a reaction mixture by the reaction injection m... | 06/05/2001 |
| 5977222 | Chloroprene rubber latex for adhesive, process of production thereof, and adhesive composition using the same A chloroprene rubber latex for an adhesive containing a chloroprene rubber polymer which forms a copolymer with a chloroprene monomer and carboxyl-group containing vinyl monomer and which, when dissolved in chloroform to a concentration of 10% by weight, ... | 11/02/1999 |
| 5959025 | Additive for the prevention of nitrosamine formation in silicone articles The present invention relates to a method for making nitrosamine-free silicone articles by treating the mixture of vinyl containing organopolysiloxane and filler with hindered phenols, a nitrosamine-free composition and a nitrosamine-free article made the... | 09/28/1999 |
| 5886139 | Process for producing polyacetal copolymer To economically produce a polyacetal copolymer excellent in properties including thermal stability by copolymerizing trioxane as the main monomer through simple steps, a polyacetal copolymer is produced by copolymerizing trioxane as the main monomer using... | 03/23/1999 |
| 5859156 | Vapor phase synthesis of rubbery polymers By utilizing the vapor phase polymerization techniques of the present invention, numerous distinct and highly beneficial advantages are realized. For instance, cis-1,4-polyisoprene rubber and high cis-1,4-polybutadiene rubber having a consistent and contr... | 01/12/1999 |
| 5719229 | Process for preparing solid elastomeric polyurethanes having reduced surface skinning This invention relates to solid elastomeric polyurethanes prepared by reacting, in an open mold at an isocyanate index of 80 to 120, (a) an isocyanate prepolymer having an isocyanate content of 3 to 15% by weight and a number average molecular weight of 550 to... | 02/17/1998 |
| 5652304 | Vapor phase synthesis of rubbery polymers By utilizing the vapor phase polymerization techniques of the present invention, numerous distinct and highly beneficial advantages are realized. For instance, cis-1,4-polyisoprene rubber and high cis-1,4-polybutadiene rubber having a consistent and contr... | 07/29/1997 |
| 5650464 | Process for the preparation of stabilized olefin polymers The invention relates to a process for the preparation of olefin polymers by polymerization using a transition metal catalyst with the addition of an aminoalkyl-1,1'-biphenyl-2,2'-diylphosphite or aminoalkyl-2,2'-alkylidene-bis(phenyl)phosphite, in conjun... | 07/22/1997 |
| 5338606 | Polyester compositions Disclosed are polyester adhesive compositions which exhibit increased melt viscosity and improved adhesion comprised of residues of terephthalic acid, ethylene glycol and diethylene glycol and having reacted therewith or copolymerized therein the residue ... | 08/16/1994 |
| 5286786 | Process for producing stabilized ethylene carbon monoxide interpolymers A process is described for stabilizing the melt flow rate and melt tension of ethylene-carbon monoxide interpolymers with a hindered phenol antioxidant. The antioxidant is melt blended with the polymer before it is exposed to air.... | 02/15/1994 |
| 5064878 | In-reactor stabilization of polymers via coated stabilizers The present invention includes: (i) a method for making a coated particulate comprising the steps of forming a polyolefin emulsion or dispersion; fluidizing additive particles; spraying the emulsion or dispersion on the fluidized additive particles; and forming dis... | 11/12/1991 |
| 4940844 | Polyol-alkali metal silicate emulsion A stable polyol-alkali metal silicate emulsion is produced by mixing and emulsifying an aqueous alkali metal solution, a polyol and an organic compound that will cause the aqueous alkali metal silicate solution to solidify. The polyol-alkali metal silicat... | 07/10/1990 |
| 4879339 | Storage stable and room temperature-curable organopolysiloxane composition A room temperature-curable organopolysiloxane composition is proposed which is useful as a material for imprinting or blocking of forms of, for example, medical and dental prostheses without the problem of curing retardation or incomplete curing. The comp... | 11/07/1989 |
| 4849465 | Aliphatic isocyanurate containing polyester resins, method for making the same, magnet wire coated therewith and an electromagnetic device A composition of matter comprising the reaction product of a cyanuric acid reactant, an aliphatic vicinal diol reactant and a carboxyl reactant, a method for producing the same, a magnet wire coated therewith and an electromagnetic device utilizing the sa... | 07/18/1989 |
| 4835230 | Use of a cationic polymerization initiator in the preparation of thermoset polymer Disclosed is an improved method for making a thermoset polymer wherein a plurality of reactant streams, one of which contains the activator of a metathesis catalyst system combined with a moderator, and a second of which contains the catalyst of the metat... | 05/30/1989 |
| 4666976 | Internally colored polyol (allyl carbonate) polymerizates When a solution of liquid allylic-functional material and bromoxylenol blue is polymerized using a thermally decomposable polymerization initiator, the color imparted by the bromoxylenol blue is brilliant yellow.... | 05/19/1987 |
| 4624981 | Process for the production of polyamideimides from polyisocyanates, polycarboxylic acid anhydrides and lactams or polyamides in which the reaction products are precipitated with a non-solvent This invention relates to a new process for the production of polyamide imides.... | 11/25/1986 |
| 4546138 | Process for the production of polyamide imides by using a phenol in the workup of the material This invention relates to a new process for the production of polyamide imides.... | 10/08/1985 |
| 4511681 | Process for producing a polyimide solution A transparent and homogeneous polyimide resin solution produced by a process in which a tetracarboxylic acid component and an aromatic diamine component are subjected to polymerization and imidization by one step at 100° to 200° C. by use of a halogenat... | 04/16/1985 |
| 4391937 | Color stable chelated titanate compositions A composition containing a chelated titanium compound and an additive selected from the group consisting of (1) esters of thioalkanoic acids, (2) di-tertiary-butyl phenol containing compounds, (3) organic phosphites, and (4) mixtures of (2) and (3), retar... | 07/05/1983 |
| 4170589 | Catalytic polymerization of ethylene with supported chromium [II] catalyst in the presence of a phenolic antioxidant An improved method for preparing ethylene polymers with certain supported chromium [II] catalysts wherein the improvement comprises employing said catalyst in the presence of phenolic antioxidant.... | 10/09/1979 |
| 4137202 | Method of synthesizing polyvinyl chloride compositions A process of preparing polyvinyl chloride by the polymerization of monomeric material consisting essentially of vinyl chloride in an aqueous medium containing a suspension vehicle, catalyst for the polymerization, and at least one additive such as stabili... | 01/30/1979 |
| 3998786 | Process for preparing aromatic polyimides, polyimides prepared thereby A process for preparing substantially completely cyclized aromatic polyimides, either monomeric, oligomeric or polymeric, is provided. The process involved the reaction of a mixture of at least one tetracarboxylic acid dianhydride and at least one aromati... | 12/21/1976 |
| 3988251 | Wire enamel with low soldering temperature A wire enamel coating composition capable of forming an insulative coating on a wire to provide a solderability of less than 1 second at temperatures as low as 285°-315° C and a thermoplastic flow temperature of at least 230° C comprising a predetermin... | 10/26/1976 |
| 3962372 | Stabilized quick set adhesives Adhesive compositions of acrylic or methacrylic monomers, chlorosulfonated polyethylene, and polymerization initiator of increased shelf stability but fast set up time, containing 2,6-di-t-butyl-4-methylphenol.... | 06/08/1976 |
| 3945968 | Heat-resistant polyurethane compositions Polyurethanes are rendered resistant to heat and oxidation by addition, as stabiliser, of a hydroxylic spiro-bis-indane of the formula: ##SPC1## In which each of the R1 radicals which may be identical or different; represents a methyl or ethyl ... | 03/23/1976 |
