DK131581A - BAREER FREE CARBON MATERIALS - Google Patents

BAREER FREE CARBON MATERIALS

Info

Publication number
DK131581A
DK131581A DK131581A DK131581A DK131581A DK 131581 A DK131581 A DK 131581A DK 131581 A DK131581 A DK 131581A DK 131581 A DK131581 A DK 131581A DK 131581 A DK131581 A DK 131581A
Authority
DK
Denmark
Prior art keywords
coat
dye
top coat
resin
synthetic
Prior art date
Application number
DK131581A
Other languages
Danish (da)
Inventor
U Kohle
H Paffhausen
Original Assignee
Pelikan Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pelikan Ag filed Critical Pelikan Ag
Publication of DK131581A publication Critical patent/DK131581A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/10—Duplicating or marking methods; Sheet materials for use therein by using carbon paper or the like

Landscapes

  • Laminated Bodies (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Color Printing (AREA)

Abstract

1. A carrier-less carbon recording material including a dye-coat - the dye particles of which are dispersed in a coat of a synthetic-resin bonding agent - and a synthetic-resin top coat which covers the rear of the dye-coat, is applied thereto as a solution and is subsequently physically dried, in which the top coat is based on a solvent-soluble non-reactive polyurethane resin comprising additives, characterised in that the top coat is modified by adding thereto, while still in its state of solution, a small quantity of a polyisocyanate derived from isocyanuric acid by replacing the three H atoms of the latter by hydrocarbon radicals which in turn carry free NCO groups and which react with reactive OH groups to form a high-strength polyurethane resin which is three-dimensionally interlaced.
DK131581A 1980-03-21 1981-03-23 BAREER FREE CARBON MATERIALS DK131581A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19803010859 DE3010859A1 (en) 1980-03-21 1980-03-21 STRAPLESS CARBON MATERIAL

Publications (1)

Publication Number Publication Date
DK131581A true DK131581A (en) 1981-09-22

Family

ID=6097874

Family Applications (1)

Application Number Title Priority Date Filing Date
DK131581A DK131581A (en) 1980-03-21 1981-03-23 BAREER FREE CARBON MATERIALS

Country Status (4)

Country Link
EP (1) EP0037370B1 (en)
AT (1) ATE22042T1 (en)
DE (2) DE3010859A1 (en)
DK (1) DK131581A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3816636A1 (en) * 1988-05-16 1989-11-23 Pelikan Ag METHOD FOR PRODUCING A THERMOFIBB BAND FOR THE THERMOTRANSFER PRESSURE

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1070918B (en) * 1956-03-08 1959-12-10 Fa. Günther Wagner, Hannover Carbon paper with a plastic rack layer
GB1218031A (en) * 1967-08-04 1971-01-06 Columbia Ribbon & Carbon Self-supporting transfer elements and processes for making self-supporting transfer elements
GB1217844A (en) * 1967-11-25 1970-12-31 Columbia Ribbon & Carbon Improvements in or relating to pressure-sensitive transfer elements
FR2021920A1 (en) * 1968-10-30 1970-07-24 Kores Spa Colour printing using polymer resins for - colour transfer surfaces
GB1380786A (en) * 1972-06-23 1975-01-15 Ozalid Group Holdings Ltd Pressure-sensitive transfer elements

Also Published As

Publication number Publication date
ATE22042T1 (en) 1986-09-15
EP0037370A3 (en) 1982-01-13
DE3010859A1 (en) 1981-10-01
EP0037370A2 (en) 1981-10-07
EP0037370B1 (en) 1986-09-10
DE3175286D1 (en) 1986-10-16

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Legal Events

Date Code Title Description
ATS Application withdrawn
PUP Patent expired