Stock material or miscellaneous articles – Composite – Of inorganic material
Reexamination Certificate
1999-03-26
2001-04-03
Le, Hoa Van (Department: 1752)
Stock material or miscellaneous articles
Composite
Of inorganic material
C428S195100, C428S480000
Reexamination Certificate
active
06210816
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention is directed to xerographic recording components such as sheets for use in creating simulated photographic-quality images or prints with nonphotographic imaging such as xerography printing and/or copying. More specifically, the present invention is directed to creating simulated, photographic-quality prints on a translucent or transparent plastic recording sheet with pigmentless toner receiving layers containing polyester resins and polyester compatible toner wetting additives on the front side of a transparent substrate, and on the back side thereof a coating or layer of pigmented coatings containing luminescence imparting materials and liquid crystalline esters and which back side can be written upon with a pen, pencil, xerography and ink jet printing.
PRIOR ART
Disclosed in U.S. Pat. No. 3,790,435 are synthetic papers with acceptable foldability of a nonlaminated structure of one thermoplastic resin film or a laminated structure of at least two thermoplastic resin films. Each of the films is stretched or molecularly oriented, and one or more of the films contain a fine inorganic filler to provide paperness of the film. According to this patent, some of the films may contain amounts of poly (styrene) as a foldability improving compound.
There is disclosed in U.S. Pat. No. 4,705,719 a synthetic paper with a resin film comprising a base layer (1a) of a biaxially stretched thermoplastic resin film, and a laminate provided on at least one of the opposite surfaces of the base layer, the laminate including a paper-line layer; (1b) a surface layer, and (1c) a paper like layer containing a uniaxially stretched film of thermoplastic resin containing 8 to 65 parts by weight of inorganic fine powder. Also known is an electrostatic recording material comprised of a multi-layered sheet support with an electroconductive layer and dielectric layers formed thereon, reference, for example, U.S. Pat. No. 4,795,676.
Moreover, there is disclosed in U.S. Pat. No. 5,075,153 a never-tear paper comprised of a plastic supporting substrate, a binder layer comprised of polymers selected from the group consisting of (1) hydroxypropyl cellulose; (2) poly(vinyl alkylether); (3) vinylpyrrolidone/vinylvinylacetate; (4) quaternized vinylpyrrolidone/dialkyl aminoethyl/methacrylate; (5) poly(vinylpyrrolidone); (6) poly(ethyleneimine) and mixtures thereof; and a pigment, or pigments, and an ink receiving layer.
Xerographic substrates such as transparencies and papers used in various printing and imaging processes are known, reference for example, U.S. Pat. No. 5,145,749 which discloses erasable coatings for xerography paper which coatings comprise for example, a pigment such as calcium carbonate in a binder such as an aqueous emulsion of an acrylic polymer.
U.S. Pat. No. 4,956,225 discloses a transparency suitable for electrographic and xerographic imaging which transparency comprises a polymeric substrate with a toner receptive coating on one surface thereof comprising blends selected from the group consisting of poly(ethylene oxide) and carboxymethyl cellulose; poly(ethylene oxide), carboxymethyl cellulose, and hydroxypropyl cellulose; poly(ethyleneoxide) and vinylidenefluoride/hexafluoro propylene copolymer; poly (chloroprene) and poly(alpha-methyl styrene); poly(caprolactone), poly(alpha-methylstyrene); poly(vinylisobutylether) and poly(alpha-methylstyrene); poly(caprolactone) and poly(p-isopropyl alpha-methylstyrene); blends of poly(1,4-butylene adipate) and poly(alpha-methyl styrene); chlorinated poly(propylene) and poly(alpha-methylstyrene); chlorinated poly(ethylene) and poly(alpha-methyl styrene); and chlorinated rubber and poly(alpha-methylstyrene).
U.S. Pat. No. 4,997,697 discloses a transparent substrate material for receiving or containing an image which comprises a supporting substrate base, an antistatic polymer layer coated on one or both sides of the substrate and comprising hydrophilic cellulosic components, and a toner receiving polymer layer contained on one or both sides of the antistatic layer, which polymer comprises hydrophobic cellulose ethers, hydrophobic cellulose esters, or mixtures thereof, and wherein the toner receiving layer can contain adhesive components.
U.S. Pat. No. 5,202,205, the disclosure of which is totally incorporated herein by reference, discloses a transparent substrate material for receiving or containing an image comprising a supporting substrate, an ink toner receiving coating composition on both sides of the substrate and comprising an adhesive layer and an antistatic layer contained on two surfaces of the adhesive layer, which antistatic layer comprises mixtures or complexes of metal halides or urea compounds both with polymers containing oxyalkylene segments.
U.S. Pat. No. 5,302,439, the disclosure of which is totally incorporated herein by reference, discloses a recording sheet, which comprises, (a) a substrate; (b) a coating on the substrate which comprises a binder and a material having a melting point of less than about 65° C. and a boiling point of greater than 150° C. and selected from the group consisting of alkyl phenones, alkyl ketones, halogenated alkanes, alkyl amines, alkyl anilines, alkyl diamines, alkyl alcohols, alkyl diols, halogenated alkyl alcohols, alkane alkyl esters, saturated fatty acids, unsaturated fatty acids, alkyl aldehydes, alkyl anhydrides, alkanes, and mixtures thereof; (c) an optional traction compound; and (d) an optional antistatic compound.
U.S. Pat. No. 5,451,458, the disclosure of which is totally incorporated herein by reference, discloses a recording sheet, which comprises, (a) a substrate; (b) a coating on the substrate, which comprises, (1) a binder selected from the group consisting of (A) polyesters; (B) polyvinyl acetals; (C) vinyl alcohol-vinyl acetal copolymers; (D) polycarbonates; and (E) mixtures thereof; and (2) an additive having a melting point of less than about 65° C. and a boiling point of more than about 150° C. and selected from the group consisting of: (A) furan derivatives; (B) cyclic ketones; (C) lactones; (D) cyclic alcohols; (E) cyclic anhydrides; (F) acid esters; (G) phosphine oxides; and (H) mixtures thereof; (c) an optional filler; (d) an optional antistatic compound; and (e) an optional biocide. Also disclosed is a process for generating images which comprises: (1) generating an electrostatic latent image on an imaging member in an imaging apparatus; (2) developing the latent image with a toner comprised of a colorant and a resin selected from the group consisting of (A) polyesters; (B) polyvinyl acetals; (C) vinyl alcohol-vinyl acetal copolymers; (D) polycarbonates; and (E) mixtures thereof; and (3) transferring the developed image to a recording sheet which comprises: (A) a substrate; (B) a coating on the substrate which comprises: (I) a binder selected from the group consisting of: (a) polyesters; (b) polyvinyl acetals; (c) vinyl alcohol-vinyl acetal copolymers; (d) polycarbonates; and (e) mixtures thereof; and (II) an additive having a melting point of less than about 65° C. and a boiling point of more than about 150° C. and selected from the group consisting of: (a) furan derivatives; (b) cyclic ketones; (c) lactones; (d) cyclic alcohols; (e) cyclic anhydrides; (f) acid esters; (g) esters; (h) phenones; (i) phosphine oxides; and (j) mixtures thereof; (C) an optional filler; (D) an optional antistatic compound; and (E) an optional biocide.
The disclosures of each of the above patents are totally incorporated herein by reference.
While known plastic recording sheets are suitable for their intended purposes, a need remains for improved xerographic recording sheets with improved image waterfastness and lightfastness. There is also a need for coated xerographic recording sheets with improved traction to thereby avoid or minimize problems when these sheets are fed into various printers and copiers. Additionally, there is a need for xerographic recording sheets with enhanced optical density, minimum show through, and less or minimal intercolor bleed.
Le Hoa Van
Palazzo E. O.
Walke Amanda C.
Xerox Corporation
LandOfFree
Translucent xerographic recording substrates does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Translucent xerographic recording substrates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Translucent xerographic recording substrates will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2533628