Rodgers; Mark L., Marsh; William F. - US Patent Attorneys and Agents

Attorney: Rodgers; Mark L., Marsh; William F.

Number of patents: 24
Last date: September 30, 1997

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Number	Title	Issue Date
5672731	N-vinylformamide/alkyl acrylate Michael adducts Novel unsaturated compounds comprising the 3-(N-vinylformamido)propionates and 2-methyl-3-(N-vinylformamido)propionates, or the corresponding propionamides, are obtained by the Michael addition reaction of N-vinylformamide with an acrylic or methacrylic a...	09/30/1997
5655570	Condensate drain device The present invention provides a condensate drain device suitable for use in high pressure systems where liquid condensate is removed. The device, through use of a wicking disk, allows removal of the condensate from the system without significant reductio...	08/12/1997
5641337	Process for the dehydration of a gas The present invention relates to a process for the dehydration of a gas, particularly of a gas where the gas values should all be substantially recovered as dehydrated gas. The process uses membrane dryers and provides a sweep gas for each of the dryers. ...	06/24/1997
5569725	N-vinyl-n-acyl urea resins A class of unsaturated resins which are suitable for use in radiation curable coatings has been developed. The resins comprise N-vinyl-N-acyl oligomers made by reacting a secondary N-vinylamide with a polyisocyanate monomer which is reacted with at least ...	10/29/1996
5525143	Hollow fiber membrane dryer with internal sweep The present invention provides a method and apparatus for the dehydration of gases utilizing hollow fiber membranes. The invention provides an internal sweep of the permeate side of the membranes utilizing an aperture in the tubesheet at the product end o...	06/11/1996
5519093	Synthesis of amine functional co-and terpolymers Amine functional polymers are prepared by polymerization of vinylamides with vinyl ester monomers. The resultant polymers are hydrolyzed under acid conditions and subsequently at least partially basified to the free-base amine. Byproduct salts are removed...	05/21/1996
5514413	Process for producing composite membranes A process is provided for fabricating composite membranes by coating a porous substrate with a solution of selective polymer. A reserve of non-solvent medium is incorporated in the substrate pore network which allows the substrate to be successfully coate...	05/07/1996
5500251	Process for coating low energy surfaces N-(4-alkylphenyl)acrylamides, N-(4-alkylphenyl)methacrylamides and N-(4-alkylphenyl)maleimides, when co-polymerized into conventional polymer systems promote adhesion of such systems to low energy polyolefin surfaces. These compounds are effective in incr...	03/19/1996
5491199	One step production of low salt vinylamine polymers Salt-free poly(vinylamine) and vinylamine copolymers are formed by heating N-vinylformamide or N-vinylformamide copolymers to a temperature from about 50° to 225° C. in an aqueous medium in the presence of a catalyst comprising a transition metal which ...	02/13/1996
5463110	Michael adducts of N-vinylformamide and acrylic and methacrylic esters Novel unsaturated compounds comprising the 3-(N-vinylformamido)propionates and 2-methyl-3-(N-vinylformamido)propionates are obtained by the Michael addition reaction of N-vinylformamide with an acrylic or methacrylic acid ester. These compounds are useful...	10/31/1995
5441772	Protecting carbon steel from corrosion with nonconducting poly(aniline) Carbon steel substrates are protected from corrosive environments by a coating of nonconductive poly(aniline) which has been chemically prepared and cast onto the substrate from solution. The coating can also include other polymers which are miscible with...	08/15/1995
5436299	Decarbonylation of N-vinylformamide copolymers Salt-free vinylamine copolymers are formed by heating the corresponding N-vinylformamide copolymer to a temperature from about 75° to 225° C. in non-aqueous media in the presence of a catalyst comprising a Group VIII metal....	07/25/1995
5418016	Coating process using radiation curable compositions A process is provided whereby radiation curable compositions comprising N-vinylformamide and an oligomer selected from the group consisting of epoxy-acrylate resins, polyester acrylate resins, polyurethane acrylate resins, acrylic acrylate resins, silicon...	05/23/1995
5401808	Poly(vinylammonium formate) and process for making amidine-containing polymers Amine functional polymers which are terpolymers made up of randomly linked units of amidine or amidinium formate, N-vinylformamide and either vinylamine or vinylammonium formate are prepared by aqueous hydrolysis of poly(N-vinylformamide) at a temperature...	03/28/1995
5373076	Functional oligomeric vinylformamides and vinylamines Vinylamide oligomers having molecular weights between about 280 and 7,500 are prepared by the cationic polymerization of vinylamides in the presence of a Lewis acid at a temperature between -100° and 100° C. The resultant vinylamide oligomers are charac...	12/13/1994
5371288	Branched alkyl-containing aminobenzamides as chain extenders in polyurethane-urea elastomers N,N'-Di-(branched alkyl)-alkylenediamine-bis-p-aminobenzamides are useful as chain extenders in the manufacture of polyurethane-urea elastomers. These compositions have remarkably uniform reactivities but can be varied structurally to achieve a range of p...	12/06/1994
5369185	Multiple acetal containing resins Resins which comprise polymers which contain multiple acetal groups have been developed which are useful for crosslinking and adhesion promotion in coating and adhesive applications. The polymers which make up these resins are prepared by the addition of ...	11/29/1994
5369184	Resins for crosslinking and adhesion promotion Resins which comprise polymers which contain multiple acetal groups have been developed which are useful for crosslinking and adhesion promotion in coating and adhesive applications. The polymers which make up these resins are prepared by the addition of ...	11/29/1994
5360876	Curative coating system Crosslinking agents are provided which are stable in both the solid state and in solution without undergoing uncontrolled self-crosslinking reactions. The crosslinking agents are formed by the amination of compounds having multiple ester moieties using ho...	11/01/1994
5336807	Crosslinking agents for coating and adhesive applications Crosslinking agents are provided which are stable in both the solid state and in solution without undergoing uncontrolled self-crosslinking reactions. The crosslinking agents are formed by the amination of compounds having multiple ester moieties using ho...	08/09/1994
5336298	Polyelectrolyte membranes for the separation of acid gases Acid gases are separated from a gas stream by bringing the gas stream into contact with a multilayer composite membrane comprising a nonselective polymeric support layer and an active separating layer comprising a polyelectrolyte polymer which contains ca...	08/09/1994
5324792	Process for making amidine-containing polymers Amine functional polymers which are terpolymers made up of randomly linked units of amidine or amidinium formate, N-vinylformamide and either vinylamine or vinylammonium formate are prepared by aqueous hydrolysis of poly(N-vinylformamide) at a temperature...	06/28/1994
5324787	Modification of poly (vinylamine) Poly(vinylamine) homopolymers and copolymers are hydrophobically modified by reaction of amine units present in the polymer with a saturated aliphatic or aromatic glycidyl ether compound. The resulting polymers are useful as flocculants in separating wate...	06/28/1994
5319118	Volatile barium precursor and use of precursor in OMCVD process Novel volatile barium complexes are disclosed which are very stable and evaporate cleanly at elevated temperatures. Such complexes are highly suited for use as a barium source in OMCVD processes....	06/07/1994

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Attorney: Rodgers; Mark L., Marsh; William F.