 Junction between two microwave transmission lines of different field structures |
| A junction according to our invention ensures full coupling between two kinds of line which can be ... |
|
| General technique for the integration of MIC/MMIC'S with waveguides |
| The invention relates to the incorporation of a microwave integrated circuit (MIC) or a monolithic ... |
|
| Wafer probe |
| Referring to FIG. 1, a probe configuration according to the present invention suitably comprises a ... |
|
| Miniature wide-band microwave power divider |
| A wide-band microwave power divider/combiner is provided in accordance with this invention which ... |
|
| Primary flat cell |
| What is claimed is: 1. In a primary dry cell, a sealed flexible non-conductive plastic envelope, ... |
|
| Seal for alkaline primary battery |
| An alkaline battery seal comprising a sealant, such as bitumen and/or fatty polyamides, compressed ... |
|
| Method of and apparatus for cleaning down well valves of well pumps in situ |
| Now with reference to FIG. 1, a vertical I-beam 1 supports auxiliary pumping mechanism and extends ... |
|
| Heat treatment of material |
| We claim: 1. Apparatus for the heat treatment of a material in discrete form including a ... |
|
| Reformer reaction control apparatus for a fuel cell |
| It is an object of this invention to provide a reformer reaction control system for improving the ... |
|
| Explosion-suppressive masses |
| Applicant has found that the filler masses formed of multiple layers of expanded metal are often of ... |
|
|
Thermal dye sublimation transfer recording element
| Details |
Inventors: Uytterhoeven, Herman J.; Raue, Roderich; Korte, Siegfried;
Assignee: Agfa-Gevaert, N.V. (Mortsel, BE)
Primary Examiner: Hess; Bruce H.
Assistant Examiner:
Attorney, Agent or Firm: Breiner & Breiner
Thermal dye sublimation transfer recording element for receiving sublimable basic dye-precursors, comprising a support having thereon a dye-developing layer containing a dye-developing copolymer having sulfonic acid side-groups that can react with the basic dye-precursor to produce a dye image, characterized in that said dye-developing vinyl copolymer comprises plasticizing comonomers, the weight percentage of plasticizing comonomers in the dye-developing vinyl copolymer being such that the glass transition temperature of the dye-developing vinyl copolymer is between 30.degree. C. and 90.degree. C. |
|
DETAILED DESCRIPTION We claim: 1.
Thermal dye sublimation transfer recording element for receiving sublimable basic dye-precursors, comprising a support having thereon a dye-developing layer containing a dye-developing vinyl copolymer having sulfonic acid side-groups that can react with the basIc dye-precursor to produce a dye image, characterized in that said dye-developing vinyl copolymer comprises plasticizing comonomers, the weIght percentage of plasticizing comonomers in the dye-developing vinyl copolymer being such that the glass transItIon temperature of the dye-developing vinyl copolymer Is between 30.
degree.
C.
and 90.
degree.
C.
2.
Thermal dye sublimation transfer recording element according to claim 1 characterized in that the sulfonic acid groups are incorporated into the dye-developing vinyl copolymer by copolymerization oF styrene sulfonic acid or 2-acrylamido,2-methylpropane sulfonic acid with vinyl monomers.
3.
Thermal dye sublimation transFer recording element according to claim 1, characterized in that the plasticizing comonomer is butyl acrylate or butyl methacrylate.
4.
Thermal dye sublimation transfer recording element according to claim 1, characterized in that the dye-developing vinyl copolymer consists of ##STR20## with n=1.
8 a 2.
0, x=65.
8 wt %, y=24.
5 wt %, z=4.
4 wt %, w=4.
8 wt % or ##STR21## with y=80.
4 wt %, z=15.
1 wt %, w=4.
5 wt % or ##STR22## with x=27.
1 wt %, Y=63.
3 wt %, z=5 wt %, w=4.
6 wt %.
5.
Thermal dye sublimation transfer recording element according to claim 1, characterized in that the dye-developing layer also comprises a polysiloxane or a polysiloxane-polyether.
6.
A process of producing a dye image on a recording element, which comprises heating a donor element containing a sublimable basic dye-precursor so as to cause the dye-precursor to sublime and react with a color developer present in the recording element, characterized in that the recording element is as claimed in claim 1.
7.
A process according to claim 6, characterized in that the basic dye-precursor is ##STR23##
Description:
DESCRIPTION This invention relates to thermal dye sublimation transfer recording, and more particularly, to dye-developing layers of recording elements for use in thermal dye sublimation transfer recording
|
|
Fuel Cells 
