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Receptor sheet manifolds for thermal mass transfer imaging
| Details |
Inventors: Henry, Robert M.; Anderson, David N.; Lin, Feng M.; Sarkar, Manisha; Williams, Donald J.;
Assignee: Minnesota Mining and Manufacturing Company (St. Paul, MN)
Primary Examiner: Ryan; Patrick J.
Assistant Examiner: Krynski; W.
Attorney, Agent or Firm: Griswold; Gary L., Kirn; Walter N., Neaveill; Darla P.
A receptor sheet manifold for thermal mass transfer imaging comprising a polymeric image receptor sheet comprising a transparent film substrate having an image receptive layer coated on at least one surface thereof which comprises at least about 90% imaging polymer, from about 1% to about 5% perfluoroalkylsulfonamidopolyether antistatic agent, and from about 0.2% to about 5% silica particles, and attached thereto is an opaque backing sheet having a contact surface touching the attached receptor sheet, and an opposing surface having a coating comprising from about 75% to about 94% of a binder resin capable of adhering thereto, from about 1% to about 10% antistatic agent and from about 5% to about 15% of a particulate, such that the opposing surface has a Bekk smoothness of about 450 to about 550 Bekk seconds. |
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DETAILED DESCRIPTION OF THE INVENTION Manifolds of the invention comprise image-receptive sheets and backing sheets attached thereto.
The image-receptive sheets comprise a film substrate having image receptive layers on at least one surface thereof.
Image-receptive layers useful in manifolds of the invention can comprise any polymer which is coatable and improves the printability of the transparent film substrate.
Specific examples include chlorinated polyolefins, polycaprolactones, blends of chlorinated polyolefin and polymethyl methacrylate, block copolymers of styrene-ethylene/butylene-styrene, and copolymers of ethylene and vinyl acetate.
Preferably, copolymers of ethylene and vinyl acetate should contain from about 10% to about 40% vinyl acetate units and blends of chlorinated polyolefins and polymethyl methacrylate should contain at least 50% of the chlorinated polyolefin.
Also useful are film-forming polymers such as ethylene bisphenol-A copolymers, e,g, those commercially available from E.
I.
DuPont Corporation (DuPont) as Atlac.
TM.
382-05; copolyesters such as Vitel.
TM.
PE 200, and PE 222, both commercially available from Goodyear Tire and Rubber Company; polyvinyl butyral, available as Butvar.
TM.
B72 and B76, available from Monsanto; polyvinylidene chloride acrylonitrile copolymers, available as Saran.
TM.
F310 from Dow Chemical, and polymethylmethacrylate, available as Elvacite.
TM.
2041 from DuPont.
Blends of imaging polymers are also useful.
One preferred imaging polymer has the basic formula: ##STR4## where R is selected from hydrogen or an alkyl group having 10 or fewer carbon atoms, an aryl group or alkyl substituted aryl group wherein the alkyl group has 10 or fewer carbon atoms, where R.
sub.
1 is a pendant group selected from the group consisting of: ##STR5## where R.
sub.
3 is a long chain alkyl group having from about 14 to about 38 carbon atoms, preferably 14-18, where R.
sub.
2 is selected from the group consisting of R.
sub.
1, ##STR6## where R.
sub.
4 is a short chain alkyl group having from 1 carbon atom to 15 carbon atoms, where x, and y are numbers related in that x+y comprises 100% of the polymer; x is from about 25% to about 100% of the final polymer, and y is from 0 to about 75% of the final polymer
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Adhesives and Rubbers 
