 System for chip joining by short wavelength radiation |
| Having thus described my invention, what I claim as new and desire to secure by Letters Patent is: 1... |
|
| Method of mechanical machining of workpieces using a plasma arc to heat the cutting zone |
| We claim: 1. A method of mechanical machining of metal workpieces using a cutter and a plasma arc ... |
|
| Leathery sheet material and process for the preparation thereof |
| What is claimed is: 1. A leathery sheet material having excellent flexibility, antistatic ... |
|
| Enkephalin-like compounds in bovine adrenal medulla |
| I claim: 1. The compound Tyr-Gly-Gly-Phe-Met-Arg-Phe essentially free of other endogenous peptides. ... |
|
| Dentifrice |
| I claim: 1. A dentifrice which reduces dental stain comprising about 20-80% by weight of a liquid ... |
|
| Method for manufacturing a semiconductor display device |
| What is claimed is: 1. A method for manufacturing a semiconductor display device, comprising the ... |
|
| Thin polycarbonate membranes for use in hemodialysis |
| What is claimed is: 1. An improved membrane prepared by a wet phase inversion technique using an ... |
|
| Process for preparing polycarbonate-polyether-blockcopolymers |
| What is claimed is: 1. A method for production of polycarbonate-polyether-copolymers comprising ... |
|
| Synthesis of amino acid-derived bioerodible polymers |
| OF THE PREFERRED EMBODIMENTS In the preparation of the polycarbonates of the present invention, ... |
|
| Flexible polyurethane foams having improved load bearing characteristics |
| What is claimed is: 1. A method of increasing the load bearing of a flexible polyurethane foam ... |
|
|
Offset transfer of toner images in electrography
| Details |
Inventors: Zwaldo, Gregory E.; Krech, Roger I.; Knutson, Donald L.;
Assignee: Minnesota Mining and Manufacturing Company (St. Paul, MN)
Primary Examiner: Goodrow; John
Assistant Examiner:
Attorney, Agent or Firm: Griswold; Gary L., Kirn; Walter N., Litman; Mark A.
An electrographic imaging process is performed by generating an electrostatic image, contacting the image with a temporary receptor sheet comprising a carrier layer, releasable release layer, and transferable adhesive layer secured to said release layer. The image is adhered to the adhesive surface, and that surface with the image thereon is then contacted with a final receiving (receptor) surface. The adhesive layer secures the toner image, adhesive layer, and the release layer (now a top protective layer) to the final receiving surface to generate the final image. |
|
DETAILED DESCRIPTION OF THE INVENTION An electrophotographic imaging process is performed by a definite sequence of steps which comprise: 1) providing a photoconductive layer (preferably with an abhesive layer or surface, such as a release layer or release surface) having an imaging surface, 2) charging said imaging surface of said photoconductive layer, 3) discharging in an imagewise fashion the charge on said imaging surface, 4) toning the imagewise charge remaining on said imaging surface with a first color toner, 5) optionally repeating steps 2, 3 and 4 at least one more time (the use of four colors, total being the most preferred but fewer or more colors are useful) using different color toners each time (different from said first color and each successive color) to form a multitoned image, 6) contacting said image (preferably multitoned image) with a transfer web (intermediate receptor layer) comprising in sequence, a carrier layer, a transferable release layer, and a releasable adhesive layer (releasable from the carrier layer along with the transferable release layer so that both layers transfer at once), said adhesive layer being in contact with said toned image, said contacting being done under sufficient heat and/or pressure to enable said toned image to be adhered to said releasable adhesive layer with greater strength than the adherence of said toned image to said imaging surface of said photoconductive layer, 7) separating said transfer web and said photoconductive layer so that the toned image is removed from said photoconductive layer and remains adhered to the adhesive layer of the transfer web, 8) contacting the surface of the transfer web having both the multitoned image and adhesive thereon with a permanent receptor surface, 9) adhering the adhesive on the transfer web to the permanent surface, 10) removing the carrier layer of the transfer web from the adhesive and the release layer of the transfer web so that an image article is formed of the permanent receptor, multitoned image, releaseable adhesive, and the resultant surface coating of the release layer which is furthest away from the permanent receptor
|
|
Adhesives and Rubbers 
