The Mead Corporation

Mhb Joint Venture

The Mead Company

John K Rourke

Joseph G O'Connor

Peter C Yao

Dale R Shackle

Mahendra Mehta

Gerhart Schwab

Robert A Austin

William J Culhane

Bruce A Neeld

Datta G Mislankar

Amitabh Das

Trude J Amick

Glenn E Bane

Willard W McCarty

Keith Colyer

A self-contained sheet for forming an image comprising a support, a first layer of microcapsules containing a color precursor of the electron donating type in a carrier liquid on the surface of the support, a layer of microspheres overlying the microcapsule layer, and a developer material present in at least one of the microcapsule layer or microsphere layer, wherein the developer material can react with the color precursor to form a visible image when the color precursor is released from the microcapsules.

Dual layer self-contained paper incorporating hollow spherical plastic pigment

Wear resistant overlays for use in decorative laminates and laminates prepared therefrom comprising a web of cellulosic fibers having deposited on the surface thereof a layer of mineral pigment composite particles wherein said composite particles comprise mineral pigment particles embedded in a cured carrier material are disclosed. A process for forming an abrasion resistant overlay sheet which comprises forming a web of cellulosic fibers on a papermaking machine and applying a slurry including mineral pigment composite particles to the upper surface of the web on the papermaking machine wherein said mineral pigment composite particles comprise mineral pigment particles embedded in a cured carrier material is also disclosed.

Preparation of wear-resistant laminates using mineral pigment composites

A process for producing a microencapsulated system comprising the steps of: (a) emulsifying a solution of color precursor in a solvent as a first internal phase and a diluent as a second internal phase in an external phase to produce discrete droplets of each of said first and second phases; and (b) encapsulating said droplets, is disclosed. A recording sheet is also disclosed which comprises a substrate having a layer of microencapsules containing a color precursor solution and microcapsules containing a diluent. Preferably the microcapsules are clusters of gelatin capsules.

Capsules having discrete solvent/color former and diluent capsule

A developer sheet for use in pressure-sensitive carbonless paper which incorporates a hollow microspherical plastic pigment.

Recording paper incorporating hollow spherical plastic pigment

The present invention is directed to a method of preparing a carbonless paper by ink jet application of molten particles before or after application of capsules.

Ink jet application of hot melt stilts to carbonless paper

An improvement is produced in prior art processes for the continuous production of emulsions; the processes include the step of continuously combining volumetrically determined amounts of the hydrophobic phase and the hydrophilic phase in mixing apparatus in a volume ratio of about 45 to 95 percent hydrophobic phase to about 5 to 55 percent hydrophilic phase wherein the particle size of the emulsion is controlled by adjusting the volume ratio within the aforesaid ranges; the process is particularly useful as the emulsification step of a process for forming microcapsules.

Continuous production of Emulsions and microcapsules of uniform particle

A mill for emulsifying immiscible fluids comprises a mill body having a cylindrical cavity extending therewithin, a fluid inlet at one end of the cavity and a fluid outlet near the other end, both in fluid communication with the cavity. The mill further comprises a stator having a first stator surface, and a rotor assembly having a rotor mounted on a shaft for rotation in the cavity, where the rotor has a first milling surface which faces the first stator surface. Between the first stator surface and the first milling surface is a first fluid milling space. The stator includes at least one annular row of stator projections extending from the first stator surface into the first fluid milling space, and the rotor includes at least one annular row of rotor projections extending from the first milling surface into the first fluid milling space. The annular rows of rotor projections are concentrically adjacent to the annular rows of stator projections within the first fluid milling space. The fluid inlet delivers the hydrophobic and hydrophilic fluids to the first fluid milling space, such that, upon rotating the rotor assembly, the fluids are pumped from the fluid inlet into the first fluid milling space where they are emulsified, and are then pumped from the first fluid milling space to the fluid outlet. The mill thus utilizes a single pass continuous feed process to produce fluid emulsions of a substantially uniform particle size.

Emulsifying milling machine and process for emulsifying

An imaging sheet useful in forming images on plain paper, said sheet comprising a support having a plurality of photosensitive microcapsules and a developer-containing resin on the surface thereof, said microcapsules and said developer-containing resin being present in the same layer or in contiguous layers on the surface of said support, said microcapsules containing an internal phase which includes a photosensitive composition which changes in viscosity in response to exposure to actinic radiation and a color former which is capable of reacting with said developer and forming a visible dye image, said imaging sheet being useful in forming images by a process which comprises image-wise exposing said imaging sheet to actinic radiation, assembling said imaging sheet with a sheet of plain paper, heating said assembly, subjecting the assembly to a uniform rupture and transfer force, and separating said imaging sheet from said paper such that said image areas are area-wise transferred to said plain paper.

Imaging sheet useful in forming images on plain paper comprising

A method for preparing a cathode material is provided. An insertion compound is ground until small particles of the insertion compound are formed. The insertion compound particles are encapsulated in an electronic and ionic conducting polymer to form the cathode material by using a spray dryer.

Growing community of inventors

Chillicothe, OH, United States of America

John K Rourke