| Patent Number |
Title Of Patent |
Date Issued |
| 4461787 |
Method for increasing the through-conductivity of a cellophane substrate |
July 24, 1984 |
| A method and chemical solutions for use in increasing the surface and volume conductivities of a cellophane substrate. The substrate can be used for dielectric copying or any other purpose for which a through-conductive substrate is required. |
| 4454058 |
Chemical solution for increasing the surface conductivity and/or the volume conductivity of a su |
June 12, 1984 |
| A chemical solution to be applied to a substrate either as a surface coating or as an impregnating solution which, in both cases, increases the conductivity and in the case of impregnation also increases the dimensional stability of the substrate. The solution consists of nitrocellul |
| 4430382 |
Conductive coating |
February 7, 1984 |
| A conductive coating structure useful in dielectric recording media and other uses comprises nitrocellulose. In one embodiment, conductive pigments are added to the nitrocellulose thus increasing the opacity of the substrate, and providing a surface suitable for handwritten annotatio |
| 4382262 |
Multicolor jet printing |
May 3, 1983 |
| A method is provided for jet printing in a plurality of colors on a substrate which is coated with one component of a dye. The jet printing nozzles direct droplets of liquid to the substrate containing the complementary dye components which produce a finished dye at the points of imp |
| 4356679 |
Apparatus for applying a degrading chemical to envelopes |
November 2, 1982 |
| A method and apparatus is disclosed in which a plurality of envelopes are arranged and aligned in face-to-face relationship to form at least one batch of envelopes with at least a first edge of each envelope in the batch disposed substantially in a common plane and with a second edge of |
| 4283473 |
Electrophotographic sheet material |
August 11, 1981 |
| The present invention relates to an electrophotographic sheet material suitable for use as an offset printing master, comprising: a fibrous substrate, a continuous film of cellulose nitrate thereon and a layer of photo conductive material on said film. |
| 4271250 |
Fibrous electrophotographic sheet with a cellulose nitrate coating |
June 2, 1981 |
| The present invention relates to an electrophotographic sheet material suitable for use as an offset printing master, comprising: a fibrous substrate, a continuous film of cellulose nitrate thereon and a layer of photo conductive material on said film. |
| 4228634 |
Envelope opening process and composition |
October 21, 1980 |
| In an envelope opening process in which an aqueous solution of a chemical degradation agent, such as tartaric acid is applied to envelope edges and the envelope edges are then heated and subjected to a mild mechanical action, penetration of the degradation agent through the envelope pape |
| 4194342 |
Folded paper edge opening process |
March 25, 1980 |
| A process is provided for the opening of envelopes made of cellulosic paper in which there is applied to at least one envelope edge as the sole reactant with the cellulose therein a non-noxious organic acid having at least one pK value at room temperature between about 1.5 and about 5, |
