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Class 523/344 - Multistep operation achieved within a stated interval of time, e.g., total cycle time, etc.


Subclass of Class 523 - Synthetic resins or natural rubbers -- part of the class 520 series
Definition: Process wherein an intentional or desired composition is
No. of patents: 35
Last issue date: 04/08/2008


NumberTitleIssue Date
7354880Catalyst composition and methods for its preparation and use in a polymerization process
The present invention relates to a catalyst composition and a method for making the catalyst composition of a polymerization catalyst and a carboxylate metal salt. The invention is also directed to the use of the catalyst composition in the polymerization of olefin(...
04/08/2008
7235605Crystalline biodegradable resin composition
A crystalline biodegradable resin composition obtained by annealing a composition comprising an aliphatic polyester and a modified elastomer. ...
06/26/2007
7122586Preparation of silica-rich rubber composition by sequential mixing with maximum mixing temperature limitations
The invention relates to preparation of silica-rich rubber compositions by a sequence of sequential mixing steps conducted in internal rubber mixer(s) with individual maximum temperature limitations. The mixing steps are comprised of at least two non-productive mixi...
10/17/2006
7059760Method of post mixing additives to hot melt adhesives
A method and apparatus for post mixing an additive with a hot melt adhesives. The method includes the steps of providing a source of molten hot melt adhesive, feeding the hot melt adhesive to an inlet of a mixer, simultaneously feeding an additive for the hot melt a...
06/13/2006
6833397Method for producing a flame retardant polycarbonate resin composition
Disclosed is a method for producing a flame retardant polycarbonate resin composition by using a screw extruder, which comprises extruding a resin component (mainly comprising a polycarbonate) and an organic phosphorus compound having an acid value of not more than ...
12/21/2004
6632918Method of reclaiming crosslinked rubber
The object of the present invention is to provide a method of reclaiming crosslinked rubber, which can reclaim various kinds of crosslinked rubbers whose reclamation is difficult. The method of reclaiming crosslinked rubber 10 of the present invention inc...
10/14/2003
6207775Homogeneous filled polymer composite
The present invention relates to a process for preparing a filled polymer composite comprising from 1 to 98 percent by weight of an interpolymer and from 2 to 99 percent by weight of a filler, said process comprising copolymerization in the presence of a ...
03/27/2001
6031027Method of compounding a multimodal polymer composition
A method of compounding a multimodal, preferably a bimodal polymer composition comprising a low molecular weight ethylene polymer and a high molecular weight ethylene polymer is described. The composition is compounded during a relatively long time at a l...
02/29/2000
5932633Method for making polymers-coated pigment particles using initiator-treated pigments
A method of making polymer-coated pigment particles, involving the steps of providing a plurality of pigment particles, each of which has an outer surface coated with a layer of material that operates as a nucleus for initiating polymerization on the oute...
08/03/1999
5852083Process for making hot melt adhesives using water soluble substituted lactam/polymer solutions as feedstocks
A process for making hot melt adhesive compositions comprising the steps of: (a) dissolving hot melt adhesive components into a room temperature or higher solution of a water soluble substituted (e.g. NMP) to form a water soluble substituted lactam (e.g. ...
12/22/1998
5633296Method for the production of rubber mixtures
The method for manufacturing rubber mixtures includes the steps of plasticizing batchwise rubber in a first inner kneader to produce a batch of plasticized rubber and transporting the batch of plasticized rubber, while still hot, into a second inner knead...
05/27/1997
5498646Production of block polymer adhesives
Method for preparing adhesive compositions subjecting a mixture of block polymer and other adhesive constituents e.g., resin(s) and oil(s) to shearing and smearing in an emulsifier disperser....
03/12/1996
5422386Process to simultaneously reactor-fill polyolefins and compatibilize fillers with polyolefins
The present invention relates to a process to simultaneously reactor-fill polyolefins and to a compatibilized, reactor-filled polyolefin composite produced by the process of the instant invention. More specifically, the instant invention provides a proces...
06/06/1995
5412001Method to reactor-fill polyolefins by formation of a dual catalyst system causing compatibilization of the filler with the maxtrix polymer
The present invention relates to a method to reactor-fill polyolefins and to reactor-filled composites obtained from the instant method. More specifically, the present invention relates to a method to reactor-fill polyolefins comprising the steps of (a) a...
05/02/1995
5403874Production of block polymer adhesives
Method for preparing adhesive compositions by dissolution of the block polymer component(s) thereof in a hot melt of the other adhesive constituents e.g., resin(s) and oil(s)....
04/04/1995
5369148Method for continuous agglomeration of an absorbent resin powder and apparatus therefor
Continuous agglomeration of an absorbent resin powder is accomplished by a method which comprises introducing the absorbent resin powder into a cylindrical member having an open lower end by means of a current of air through a dispersing member disposed i...
11/29/1994
5334638Aqueous dispersion useful in coatings containing hydrolyzed cellulose ester and acyrlic resin
A stable aqueous dispersion and process for making the dispersion are provided containing hydrolyzed cellulose ester, organic solvent, water and acrylic resin having free acid functionalities that are at least partially neutralized. The dispersion is usef...
08/02/1994
4876297Method of producing mixtures of rubber or rubber-like material, and carbon black
A method of producing a mixture that contains rubber or rubber-like material, and carbon black. The method includes the steps of adding to the rubber or rubber-like material a portion only of the intended total quantity of carbon black, thereupon preheati...
10/24/1989
4774280Polyethylene based resins, their preparation, and their application as binding agents in coatings
New resins based on oxidized polyethylene, which are thermoplastic or thermosetting, soluble in solvents and/or aqueous media, are characterized in that they consist essentially of grafted polyethylene obtained by preparing a dispersion of a molten oxidiz...
09/27/1988
4486562Process for making vulcanized carbon black-reinforced bromobutyl rubber films
A process is provided for preparing a vulcanized carbon black-reinforced chloro- or bromobutyl rubber film comprising admixing a polyfunctional amine vulcanization system with a carbon black-reinforced chloro- or bromobutyl rubber latex containing one or ...
12/04/1984
4433077Process for preparing curable compounds
A process is provided for the production of soft compounds which are curable by heat to rubbery elastomers which process comprises mixing in a trough type blade mixer a butadiene-acrylonitrile polymer, filler, tackifying resin, plasticizer, a polymerizabl...
02/21/1984
4393175Process for the continuous diazotization of water-soluble polymeric amines
An improvement in the diazotization of polymeric amines is disclosed that minimizes crosslinking problems. Solutions of nitrite ion and polymeric amine are concurrently continuously fed at controlled rates to a turbulently agitated limited volume mixing z...
07/12/1983
4371659Preparation of aqueous polymer dispersions having a polymer content of up to 75% by weight
Aqueous polymer dispersions containing up to 75% by weight of polymer are prepared advantageously by emulsion copolymerization in the presence of conventional anionic emulsifiers, polymerization initiators and small amounts of polymerization inhibitors, a...
02/01/1983
4357432Vulcanizates
A process, and the product of the process, is provided for the production of improved rubbery vulcanizates which contain both of silica or calcium silicate and carbon black as the fillers and two polymers one of which contains hydroxy or epoxy groups. Suc...
11/02/1982
4340516Compounding mica and resin with heat sensitive additives
A method of rapidly compounding melt forming resin, mica and chlorinated hydrocarbon wherein the mica has a coating comprising the chlorinated hydrocarbon, which method comprises providing a molten mass of the resin, contacting the molten mass with the co...
07/20/1982
4332850Vinyl acetate-ethylene emulsions for nonwoven goods
This invention relates to a vinyl acetate-ethylene copolymer containing emulsion particularly adapted for the preparation of nonwoven goods. The vinyl acetate-ethylene emulsion is prepared by an improved process for producing an aqueous emulsion suitably ...
06/01/1982
4183832Aqueous solutions of etherified melamine-formaldehyde resins with long shelf life and low free formaldehyde content
An etherified melamine-formaldehyde resin is disclosed that has prolonged shelf life, comparatively low free formaldehyde content, and is especially adapted as a binder for glass fiber mats. The melamine-formaldehyde resin is prepared in several distinct ...
01/15/1980
4155893Preparing a hydrophilic gel by hydrolyzing a vinyl ester-acrylic or methacrylic ester copolymer
A method for the preparation of water-insoluble gels containing at least a hydroxyl group and a carboxylate group in molecules thereof which comprises saponifying copolymers comprising a vinyl ester component and an acrylic or methacrylic acid ester compo...
05/22/1979
4125511Filled polyester of a cyclic diacid anhydride with an epoxide
The invention provides a polymeric material comprising a polyester prepared by initiating a reaction between a poly-terminal epoxide, a mono-terminal epoxide and a cyclic diacid anhydride in the presence of a catalytically effective quaternary salt, heati...
11/14/1978
4080352Process for continuously coagulating an aqueous latex and consolidating as a paste coagulum
A process for continuously coagulating a polymeric latex and consolidating as a paste coagulum in an apparatus comprising a barrel containing first and second feed ports, a rotor having opposed rows of angled tab blades and opposed wiper blades, a feed an...
03/21/1978
4070324Continuous procedure for the production of a diene based synthetic rubber latex whose particle diameter is in the range between 1500 and 4000 angstroms
A diene based synthetic rubber latex, whose particle diameter is in the range between 1500 and 4000A, is prepared through an emulsion polymerization process wherein there is fed to a stirred autoclave system, the following ingredients: A. 100 parts of mon...
01/24/1978
3966661Preparation of latices
Carboxylated latices are prepared continuously under substantially constant temperature conditions in a total reaction time of 6 to 10 hours using two or more reactors at controlled temperatures. The monomers and the reaction ingredients which are specifi...
06/29/1976
3953390Process for preparing a composition for the surface of roads, airport runways and like surfaces and the products obtained
Process for preparing a composition for the surface of roads, airport runways, canals, dams and the like surfaces, comprising mineral granulates coated with 4-12% by weight with respect to the weight of the granulates, of a binder consisting essentially o...
04/27/1976
 
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