Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Light-sensitive vesicular imaging materials
T990001 Light-sensitive vesicular imaging materials
Patent Drawings:Drawing: T990001-2    
« 1 »

(1 images)

Inventor: Huffey, et al.
Date Issued: January 1, 1980
Application: 06/037,513
Filed: May 9, 1979
Inventors: Huffey; Roy F. (Ipswich, GB2)
Lothian; David E. (Colchester, GB2)
Rennison; Stuart C. (Hadleigh, GB2)
Titman; Michael K. (Colchester, GB2)
Assignee: Bedford Limited (London, GB2)
Primary Examiner:
Assistant Examiner:
Attorney Or Agent:
U.S. Class: 430/152; 430/162; 430/273.1; 430/290; 430/292
Field Of Search:
International Class: G03C 5/60
U.S Patent Documents:
Foreign Patent Documents:
Other References:









Abstract: Light-sensitive vesicular imaging materials, suitable for the production of colored labels, etc., comprise a light-sensitive vesicular imaging layer applied to one surface of a transparent self-supporting plastics sheet or film such as a linear polyester, e.g. polyethylene terephthalate film, said light-sensitive vesicular imaging layer comprising a polymeric vehicle having uniformly dispersed therein a sensitizing agent which releases a vesicle-forming gas, preferably nitrogen, upon exposure to light and optionally including a pigment or dye, said polymeric vehicle comprising a thermoplastic polymer having a nitrogen permeability constant in the range 1.times.10.sup.-15 to 1.times.10.sup.-10 and being softenable upon heating above ambient temperature to permit the gas released by the sensitizing agent in the light-struck areas to form an image in the form of light-scattering or reflecting vesicles therein, wherein at least one pigmented or dyed coating layer which includes a polymeric binder and has an opacity represented by a total luminous transmittance measured by ASTM test method D-1003-61 not exceeding 25% is applied over the vesicular imaging layer and remote from the plastics sheet or film and provides a contrasting background for the image. The pigmented or dyed layer may optionally contain a self-adhesive or pressure-sensitive adhesive for affixing the material to a receptive substrate. Alternatively a separate self-adhesive or pressure-sensitive adhesive layer may be applied to the pigmented or dyed layer, optionally protected by a peelable backing layer.
Claim:
Description:
 
 
  Recently Added Patents
Multi-radio coexistence
Systems and methods for arranging and labeling cardiac episodes
Architectural panel with millet and grass
Earphone
Portable multimedia player
Synthesis of amines and intermediates for the synthesis thereof
Bi-directional pattern dependent noise prediction
  Randomly Featured Patents
Method and apparatus for detecting small magnetizable particles and flaws in nonmagnetic conductors
Maintaining write ordering in a system
Electric readout display unit
Multi-filament fluorescent lamp construction
Cable spacer clip
Method of, and apparatus for, effecting temperature-equalization of hot steel strip
Support pole
Enclosed passenger lift suitable for use in a vehicle having a fixed passenger access step
Method for making radiation curable silicon containing polyacrylate hardcoat compositions and compositions made thereby
Fragrance container