Home | Links | Contact Us | More About Intellectual Property | Bookmark
Search patents:
Home Adhesives and Rubbers Ink-jettable-toner-compositions-and-processes-for-making-and-using

 Flame retardant compositions
What is claimed is: 1. The flame retardant polymer composition comprising a linear alternating ...


 Oil resistant thermoplastic elastomer
The thermoplastic elastomer compositions produced according to the process of the present ...


 Coating composition of an acrylic polymer having ethylenically unsaturated groups and an acrylic polymer having primary amine groups
The coating composition contains about 20-80% by weight of binder and 80-20% by weight of a ...


 Catalysts for the polymerization of olefins
We claim: 1. A catalyst-forming component for use in preparing catalysts for the polymerization of ...


 ***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST*** *** NO IMAGES AVAILABLE*** Homogeneous-heterogeneous catalyst system for polyolefins
OF THE INVENTION The multi-catalyst system of the present invention is useful in the ...


 Catalyst for polymerizing an olefin and method for producing an olefin polymer
We claim: 1. A catalyst for polymerizing an olefin which consists essentially of a product obtained ...


 Process for preparing biaxially oriented polypropylene film suitable for twist wrapping
It is therefore an object of the instant invention to provide a multilayered, coextruded, highly ...


 Process for the production of a biaxially highly oriented polypropylene film
The propylene polymer of the base ply (or single ply, if there are no top plies) is preferably ...


 Process for making a drag shield for a power mower
With the problems of the prior art in mind, the present invention includes two opposing and spaced ...


 Process for producing a chloromethylated polymer
We claim: 1. A process for producing a chloromethylated polymer by reacting styrene polymer ...


 Ink jettable toner compositions and processes for making and using

Details
Inventors: Keoshkerian, Barkev; Georges, Michael K.; Drappel, Stephan V.;
Assignee: Xerox Corporation (Stamford, CT)
Primary Examiner: Wright; Lee C.
Assistant Examiner:
Attorney, Agent or Firm: Haack; John L.

A process for the preparation of toner compositions comprising: forming a mixture comprised of at least one free radical reactive monomer, a colorant, a stabilizer compound containing a stable free radical reactive group, and a liquid vehicle; and heating the mixture from about 75.degree. to about 200.degree. C. to effect polymerization of said monomer, wherein there results stabilized core resin particles containing said colorant and wherein said stabilized core particles are stabilized by said stable free radical reactive stabilizer compounds being bonded directly to the core particles.

DETAILED DESCRIPTION An object of the present invention is to provide polymerization processes and polymers and stabilized particles therefrom that overcome many of the problems and disadvantages of the aforementioned prior art.
In another object of the present invention is provided polymerization processes for the preparation of diblock and multiblock reactive emulsifiers or reactive stabilizer compounds.
It is also an object of the present invention to provide polymerization processes for the production of diblock and multiblock resins and thermally labile, free radical reactive, emulsifiers having narrow molecular weight polydispersity properties and with high monomer to polymer conversion.
It is a further object of the present invention to provide pigment stabilization processes which embody the direct reaction of the aforementioned thermally labile reactive emulsifier or stabilizer compounds with pigment particles, such as carbon black, to provide surface modified and dispersion stabilized pigment particles.
In another object of the present invention is provided, in embodiments, a polymerization process for the preparation of stabilized thermoplastic resins and toner resin particles comprising forming a mixture comprised of at least one free radical reactive monomer, a colorant, a stabilizer compound containing a thermally labile and covalently bound stable free radical reactive group, an optional emulsifier, and an optional polymeric resin wherein the optional resin is soluble or dispersible within the monomer, and a liquid vehicle; and heating the mixture to effect polymerization of the monomer, wherein there results stabilized core resin particles containing the colorant and wherein the stabilized core particles are stabilized by the covalently appended stable free radical and stable free radical reactive stabilizer compound fragments.
In embodiments of forming the aforementioned reactive stabilizer compound, it is important that the free radical initiator and stable free radical agent be added as separate components and wherein a reaction therebetween is avoided



Related patents
  Ink jettable toner compositions and processes for making and using
An object of the present invention is to provide polymerization processes and polymers and stabilized particles therefrom that overcome many of the problems and ...
  Stable free radical polymerization processes and compositions thereof
What is claimed is: 1. A free radical polymerization process for the preparation of polymer having a narrow polydispersity from about 1.05 to about 1.95 comprising; ...
  Recording liquid, printed product and ink jet recording method
What is claimed is: 1. A recording liquid comprising: carbon black having a DBP oil absorption of at least 140 ml/100 g and an average particle size of from 0.01 to 0.4 ....
  Thermoplastic elastomer composition
OF THE INVENTION The thermoplastic elastomer composition of the invention comprises 100 parts by weight of a polyester block copolymer and 0.05 to 20 parts by weight of ...
  Intercalations of crystalline lithium aluminates
As shown in the above patents which are incorporated herein by reference, hydrous alumina, represented by the formula Al(OH).sub.3, may be suspended in an ion exchange ...
  Surface wettable silicone hydrogels
OF THE INVENTION The crosslinked polymeric network found in the hydrogels of the present invention are believed to be formed, in part, from the polysiloxane prepolymer ....
  High voltage insulating compositions containing phosphorus compounds
OF THE PREFERRED EMBODIMENTS OF THE INVENTION Preferred phosphorus compounds for use in the invention are (a) compounds of Formula I, II or III above wherein each of ...
  Flame retardant polyphenylene oxide thermoplastics
What is claimed is: 1. A flame retardant thermoplastic blend comprising by weight (A) 100 parts of polyphenylene oxide, (B) 20 to 300 parts of styrene resin and (C) 0.01 ...
  Film and sheet capable of forming retortable and easy-open packagings
OF THE PREFERRED EMBODIMENT Applicants have found that a wrappable film may be made which is capable of forming peel seals and comprises a mixture containing from about ...
  Hot melt adhesive
What is claimed is: 1. A hot melt adhesive composition for bonding polypropylene substrates, said composition comprising: (a) about 20% to abut 35% by weight of an ...

1.264

Archive: All patents - Links

Copyright (c)2006 Eipa-patents.org - All rights reserved