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| Number | Title | Issue Date |
| 7087704 | Method for manufacturing thermotropic liquid-crystalline polymer It is an object of the present invention to manufacture high quality thermotropic liquid-crystalline polymer generating no low boiling gas and inducing no discoloration resulted from thermal degradation at high yield. To manufacture a liquid-crystalline polymer havi... | 08/08/2006 |
| 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 |
| 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 |
| 6218463 | Ocular devices manufactured with free radical-polymerizable latent ultra-violet absorbers The invention provides compositions for forming ocular devices which compositions contain latent UV absorbers. The compositions of the invention may be used to conveniently and efficiently produce ocular devices through UV initiated, free radical polymeri... | 04/17/2001 |
| 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 |
| 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 |
| 5270430 | Polymers stabilized with 6-chromanol derivatives 6-chromanol derivatives are used as antioxidants in polyethers. These, particularly in conjunction with other antioxidants, provide excellent protection against oxidation at very low levels of use. They are particularly useful in polyethers for preparing ... | 12/14/1993 |
| 5238992 | Microemulsion polymer blends A process for preparing solid polymer blends and composites of controlled porosity in microemulsions containing both hydrophilic and hydrophobic phases. The microemulsions are prepared with surfactant systems that may include a cosolvent as a part thereof... | 08/24/1993 |
| 5177142 | Silicone release coating compositions "Acrylic weld" of a silicone release composition comprising a polydiorganosiloxane containing unsaturated groups, a crosslinking agent containing Si--H groups and a hydrosilation catalyst is inhibited by incorporating therein at least one free radical inh... | 01/05/1993 |
| 5115051 | Method of preventing polymer scale deposition in a polymerization vessel A method of preventing polymer scale deposition in a polymerization vessel during polymerization of a monomer having an ethylenically double bond, wherein said polymerization is carried out in a polymerization vessel of which the inner wall has been previ... | 05/19/1992 |
| 5032642 | Phenolic resin compositions A phenolic resin composition comprises an ester-curable phenol-aldehyde resin in alkaline aqueous solution wherein the phenol-aldehyde resin is a methylolated phenolic novolak resin. Preferably, during manufacture of the methylolated phenolic novolak resi... | 07/16/1991 |
| 5006599 | Use of 3,5-di-tert-butyl-4-hydroxyphenylpropionic acid for stabilizing polyether polyols The present invention relates to a method for stabilizing a polyether polyol having a molecular weight of from about 300 to about 10,000 comprising adding 3,5-di-tert-butyl-4-hydroxyphenylpropionic acid as an antioxidant stabilizer, optionally in combinat... | 04/09/1991 |
| 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 |
| 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 |
| 4517347 | Method for copolymerization of styrene and acrylonitrile In the emulsion copolymerization of styrene and acrylonitrile, the copolymer yield can be increased by adding certain antioxidant compounds to the emulsifier. These antioxidant compounds include an aromatic portion and a fatty acid portion, and may be, fo... | 05/14/1985 |
| 4227979 | Radiation-curable coating compositions containing amide acrylate compounds Radiation-curable coating compositions are disclosed which contain one or more amide acrylate compounds of the general formula: ##STR1## wherein X, Y and Z may each independently be H, alkyl, aryl, acrylyloxyalkyl, acrylyloxy aliphatic ester or acryl... | 10/14/1980 |
| 4155899 | Post bulk polymerization process for polyvinyl halide and composition thereof An improved polyvinyl halide or a polyvinyl halide copolymer containing up to 50 percent of a comonomer can be obtained by post polymerizing in a single stage or two-stage bulk process in contact with a base polymer, the same or different monomer as the m... | 05/22/1979 |
| 4011196 | Stabilized polyester resin and processes for making them Process of making a polyester resin using a zinc esterification catalyst and a hindered phenol stabilizer.... | 03/08/1977 |
| 3989660 | Polymerization of vinyl halides Aqueous microsuspension polymerization of vinyl halides in which monomer-soluble surfactant is dissolved in the monomer before it is brought into contact with the aqueous phase.... | 11/02/1976 |
| 3974119 | Ethylene-styrenic-alkyl vinyl terpolymer emulsions having particle size of 100 to about 100 angstrom units Stable emulsions of terpolymer particles are formed by polymerizing ethylene, a styrenic monomer such as styrene, and an alkyl vinyl monomer having from about 3 up to about 24 carbon atoms in an aqueous medium in the presence of a water soluble persulfate... | 08/10/1976 |
| 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 |
