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| Number | Title | Issue Date |
| 7402646 | Polymerization of diisopropenylbenzene Processes for preparing substantially linear polymers from diisopropenylbenzenes are provided. The polymers are useful in making a variety of products, including coatings, pigment dispersing agents, and stabilizers. ... | 07/22/2008 |
| 7375175 | Dispersions containing living radicals A dispersion of polymer particles, the particle containing, on average, one or more living radicals each, the radicals not being chemically protected. Further disclosed is a free radical polymerization process resulting in a dispersion containing polymer particles h... | 05/20/2008 |
| 7250479 | Polymerization with living characteristics This invention concerns a free radical polymerization process, selected chain transfer agents employed in the process and polymers made thereby, in which the process comprises preparing polymer of general Formula (A) and Formula (B) comprising contacting: (i) a mono... | 07/31/2007 |
| 7098280 | Controlled polymerization The present invention discloses an emulsion polymerization process that comprises: (1) preparing an aqueous polymerization medium which is comprised of (a) at least one monomer, (b) a polymerization control agent, and an emulsifier, wherein the emulsifier is prepare... | 08/29/2006 |
| 7098281 | Plastic optical fiber, optical fiber cable, optical fiber cable with plug, method for producing methyl methacrylate based polymer and method for producing plastic optical fiber This invention provides a process for manufacturing a methyl methacrylate polymer comprising the steps of feeding a monomer containing at least 80 wt % of methyl methacrylate and a radical polymerization initiator represented formula (III) to a reactor; polymerizing... | 08/29/2006 |
| 7091293 | Stereoregular polar vinyl polymers and methods of making the same The polymerization of polar vinyl monomers in the presence of Lewis acids produces stereoregular vinyl polymers. Polar vinyl monomers may be mixed with Lewis acids to form associations or complexes between the monomers and Lewis acids. The mixtures or monomer-Lewis ... | 08/15/2006 |
| 7071270 | Method for obtaining polybutadiene-based aqueous dispersions The invention relates to a method for preparing butadiene-based aqueous dispersions in the presence of at least one azocarboxylic acid ester. ... | 07/04/2006 |
| 7067586 | Methods of making ABA-type block copolymers having a random block of hydrophobic and hydrophilic monomers Block copolymers are prepared by living-type or semi-living type free radical polymerization, with said copolymers having at least one random block comprised of at least one hydrophobic monomer and at least one hydrophilic monomer. The selection of hydrophobic and h... | 06/27/2006 |
| 6992156 | Controlled polymerization The present invention discloses an emulsion polymerization process that comprises: (1) preparing an aqueous polymerization medium which is comprised of (a) at least one monomer, (b) a polymerization control agent, and an emulsifier, wherein the emulsifier is prepare... | 01/31/2006 |
| 6943232 | Halogenated optical polymer composition The present invention provides an energy curable composition including a compound having an aromatic or heteroaromatic moiety; at least two fluorinated alkylene, arylene or polyether moieties, each fluorinated alkylene, arylene or polyether moiety being linked to th... | 09/13/2005 |
| 6844407 | Control agents for living-type free radical polymerization, methods of polymerizing and polymers with same Control agents that have a nitrogen-nitrogen bond covalently bonded to a thiocarbonyl moiety are provided for living-type free radical polymerization of a wide variety of monomers. These control agents provide superior properties for control of the polymerization an... | 01/18/2005 |
| 6825290 | Process for the preparation of latices using block copolymers as surfactants A subject-matter of the present invention is a process for the preparation of a latex by radical aqueous emulsion polymerization in the presence of at least one ethylenically unsaturated monomer, of at least one radical polymerization initiator and of at least one s... | 11/30/2004 |
| 6825301 | Water-in-oil polymer emulsion and method for making same The invention concerns a water-in-oil polymer emulsion containing in an organic and continuous phase practically non-miscible in water, finely comminuted water soluble polymers or capable of being swollen in water, a water-in-oil emulsifying agent and optionally wet... | 11/30/2004 |
| 6767980 | Reactive diluent and curable resin composition The present invention provides a reactive diluent composition which overcomes drawbacks of both the radical-cure and the cationic-cure reactive diluents and can be applied in a broad variety of uses such as paints, inks, adhesives, pressure sensitive adhesives, surf... | 07/27/2004 |
| 6653418 | Process for preparing polymer compound for resist There is provided a process for preparing a polymer compound for a resist, which can improve the performance, such as the heat resistance, sensitivity and resolution of the resist, without causing film loss of the resist, line width reduction of the resis... | 11/25/2003 |
| 6642306 | Method for preparing stable (co) polymers dispersions in a polyol The invention concerns a method for preparing stable (co)polymer dispersions in a polyol by polymerising in situ a monomer or a mixture of ethylenically unsaturated monomers, in the presence of one or several azocarboxylic acid ester(s).... | 11/04/2003 |
| 6602967 | Use of deaminatively-generated carbocation as polymerization initiators Deaminatively generated carbocations to initiate addition polymerization are disclosed. The high reactivity of the carbocation allows initiation of polymerization with virtually all alkenes, alkynes, alicyclic and aromatic monomers, regardless whether mul... | 08/05/2003 |
| 6518448 | Compounds useful for control agents for living-type free radical polymerization Control agents that have a nitrogen-nitrogen bond covalently bonded to a thiocarbonyl moiety are provided for living-type free radical polymerization of a wide variety of monomers. These control agents provide superior properties for control of the polyme... | 02/11/2003 |
| 6518364 | Emulsion living-type free radical polymerization, methods and products of same Heterogeneous (e.g., emulsion) polymerization systems include a control agent that has a nitrogen-nitrogen bond covalently bonded to a thiocarbonyl moiety for living-type free radical polymerization of a wide variety of monomers. These control agents prov... | 02/11/2003 |
| 6509394 | Optimized anaerobic adhesive compositions and methods of preparing same The present invention relates to anaerobic adhesive compositions which have been optimized using experimental design techniques to produce desired physical properties. A simplified cure system is disclosed which permits enhanced fixture and cure times.... | 01/21/2003 |
| 6482909 | Compounds useful for control agents for living-type free radical polymerization Control agents that have a nitrogen-nitrogen bond covalently bonded to a thiocarbonyl moiety are provided for living-type free radical polymerization of a wide variety of monomers. These control agents provide superior properties for control of the polyme... | 11/19/2002 |
| 6395850 | Heterocycle containing control agents for living-type free radical polymerization Control agents that have a nitrogen--nitrogen bond in a cyclic ring covalently bonded to a thiocarbonyl moiety are provided for living-type free radical polymerization without a bimodal molecular weight distribution at high monomer conversions. These cont... | 05/28/2002 |
| 6395822 | Coating composition This invention relates to a liquid coating composition that is thermally-curable in the presence of oxygen, comprising: a monomer or oligomer containing two or more acrylate and/or methacrylate functional groups; an azo initiator; and oxygen. This inventi... | 05/28/2002 |
| 6391995 | Polymer compositions useful as dye complexing agents, and processes for preparing same Described are preferred processes for preparing quaternary amine polymers of good color, comprising preparing a free base amine polymer by polymerizing a free base amine monomer in the presence of a water-soluble azo initiator, and subjecting the resultan... | 05/21/2002 |
| 6335431 | Method for separation of isomers of azo compounds A method of separation of a racemic isomer and a meso isomer from a mixture of a racemic isomer and a meso isomer of a compound shown by the general formula [1] ##STR1## (wherein R1 and R2 are each independently a lower alkyl group o... | 01/01/2002 |
| 6303723 | Process for polymerization of allylic compounds A process for preparing polymers of allylic amine compounds comprising: a) preparing a reaction mixture comprising: i) a polar reaction solvent; ii) at least one salt of an allylic amine compound; and iii) a free radical initiator comprising a water soluble non-ionic di... | 10/16/2001 |
| 6268452 | Process for the production of allylamine polymer Provided is an industrially advantageous process for producing allylamine polymers from various allylamines in an organic solvent with ease and at high yields, and the process comprises polymerizing allylamines in a medium containing an organic solvent in... | 07/31/2001 |
| 6258901 | Process for producing lightly colored p-vinylphenol polymer There is provided a process for efficiently and economically producing a polymer which is superior in transmittances of visible light and far-ultraviolet light, has a high molecular weight and is light-colored. A process for producing a light-colored viny... | 07/10/2001 |
| 6174977 | Cold curable resin composition and base material coated with the same Disclosed is a cold curable resin composition comprising at least a block copolymer in which a polymer portion having an epoxy group, a hydroxyl group and a hydrolytic silyl group and a polyorganosiloxane portion exist in the same molecular chain. A base ... | 01/16/2001 |
| 5886109 | AZO group-containing high molecular weight compound for block copolymerization An azo group-containing high molecular weight compound including --COHN--, an ester linkage, or an amido linkage and a monomer units of 10 to 1000 derived from ,ଲ-ethylenically unsaturated monomer is effective for producing a block copolymer ... | 03/23/1999 |
| 5849888 | Azoamide compound Azoamide compounds shown by the general formula 1 ! ##STR1## (Wherein R1 and R2 are independently a lower alkyl group, and R3 is a saturated alkyl group having 2 or more carbon atoms) and their use.... | 12/15/1998 |
| 5847091 | Fluorine-containing azo compounds A fluorine-containing azo compound having a fluorine segment at a molecular terminal is useful as a polymerization initiator for producing, for example, fluorine-containing polymers.... | 12/08/1998 |
| 5783646 | Process for producing styrene base polymer A styrene base polymer superior and well-balanced in mechanical strength and fluidity and also superior in heat resistance is industrially advantageously produced by a radical polymerization process comprising; (a) subjecting styrene or a styrene compound and ... | 07/21/1998 |
| 5744560 | Metal accelerated polymerization processes A free radical polymerization process for the preparation of a polymer comprising heating a mixture of a free radical initiator, a stable free radical agent, a metal catalyst, or a metal stable free radical complex catalyst, and at least one polymerizable... | 04/28/1998 |
| 5744559 | Macro-azo initiator A macro-azo initiator obtained by reacting a compound (A) having an azo group in the molecule and having a reactive functional group at each end of the molecule with a compound (B) having an azo group in the molecule and having at each end of the molecule... | 04/28/1998 |
| 5723554 | Process for producing styrenic polymer There is provided a process for producing a styrenic polymer having a weight average molecular weight (Mw) of 200,000-500,000, a number average molecular weight (Mn) of 100,000-450,000 and a molecular weight distribution (Mw/Mn) of from 1.1 to 2 by free r... | 03/03/1998 |
| 5663252 | Process for preparing a branched polymer from a vinyl aromatic monomer A free radical polymerization process for producing a branched polymer from a vinyl aromatic monomer comprising polymerizing a vinyl aromatic monomer in the presence of a free radical initiator of the formula: ##STR1## wherein R is H, alkyl, or aralk... | 09/02/1997 |
| 5610249 | Process for production of styrene or styrene derivative polymer of narrow molecular weight distrubition The present invention provides a process for producing a styrene or styrene derivative polymer of narrow molecular weight distribution, which comprises (co)polymerizing a styrene or styrene derivative monomer using, as the catalyst system, a mixture of a ... | 03/11/1997 |
| 5563276 | Polymerization of acrylic acid and derivatives thereof using azoamidoxime salt Acrylic acid or water-soluble derivatives thereof can be polymerized effectively in a short time using as a polymerization initiator an inorganic acid salt or organic acid salt of 2,2'-azobis(2-methylpropionamidoxime).... | 10/08/1996 |
| 5552501 | Method for the rapid free radical polymerization of acrylamide co-polymers using tetramethylamine catalysts A method for the accelerated free radical copolymerization of acrylamide monomers and diacetone acrylamide monomers in an aqueous solution to form copolymers which may be combined with photosensitizers and utilized in the color picture tube or photoengrav... | 09/03/1996 |
