FR2168197A1 - Recording material - with top layer formed from calcium carbonate scrapped off by pen to reveal coloured base - Google Patents

Recording material - with top layer formed from calcium carbonate scrapped off by pen to reveal coloured base

Info

Publication number
FR2168197A1
FR2168197A1 FR7201847A FR7201847A FR2168197A1 FR 2168197 A1 FR2168197 A1 FR 2168197A1 FR 7201847 A FR7201847 A FR 7201847A FR 7201847 A FR7201847 A FR 7201847A FR 2168197 A1 FR2168197 A1 FR 2168197A1
Authority
FR
France
Prior art keywords
layer formed
top layer
recording material
pen
scrapped
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
FR7201847A
Other languages
French (fr)
Other versions
FR2168197B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KIEVSKY ORDENA LENINA SU
Original Assignee
KIEVSKY ORDENA LENINA SU
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
Priority to CH1845471A priority Critical patent/CH541414A/en
Priority to US00210896A priority patent/US3781153A/en
Priority claimed from GB6020771A external-priority patent/GB1365098A/en
Priority claimed from DE19712165439 external-priority patent/DE2165439C3/en
Application filed by KIEVSKY ORDENA LENINA SU filed Critical KIEVSKY ORDENA LENINA SU
Priority to FR7201847A priority patent/FR2168197A1/en
Publication of FR2168197A1 publication Critical patent/FR2168197A1/en
Application granted granted Critical
Publication of FR2168197B1 publication Critical patent/FR2168197B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/51—Screws with internal flow passages, e.g. for molten material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils

Abstract

The recording material comprises a top layer formed on a coloured material (i.e. paper or film) which is scraped off with a recording pen. A fibrous substance and/or a thermoplastic resin (e.g. vinyl resin) are dissolved in a mixed solvent of ratio 1:0-1, solvent:diluent then a white agent is blending into the soln. to form a coating liq. This agent is CaCO3 treated with stearic acid to make it completely dispersable in the org. solvents. Finally thin liquid is coated onto the paper and dreid under dry heated air to form a white layer of high quality.
FR7201847A 1971-12-17 1972-01-20 Recording material - with top layer formed from calcium carbonate scrapped off by pen to reveal coloured base Granted FR2168197A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CH1845471A CH541414A (en) 1971-12-17 1971-12-17 Extruder for processing polymer materials
US00210896A US3781153A (en) 1971-12-17 1971-12-22 Disk extruder for processing polymeric materials
FR7201847A FR2168197A1 (en) 1971-12-22 1972-01-20 Recording material - with top layer formed from calcium carbonate scrapped off by pen to reveal coloured base

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US21089671A 1971-12-22 1971-12-22
GB6020771A GB1365098A (en) 1971-12-22 1971-12-28 Centripetal extruder for processing polymeric materials
DE19712165439 DE2165439C3 (en) 1971-12-29 Disk extruder for processing polymeric materials
FR7201847A FR2168197A1 (en) 1971-12-22 1972-01-20 Recording material - with top layer formed from calcium carbonate scrapped off by pen to reveal coloured base

Publications (2)

Publication Number Publication Date
FR2168197A1 true FR2168197A1 (en) 1973-08-31
FR2168197B1 FR2168197B1 (en) 1975-10-24

Family

ID=27431377

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7201847A Granted FR2168197A1 (en) 1971-12-17 1972-01-20 Recording material - with top layer formed from calcium carbonate scrapped off by pen to reveal coloured base

Country Status (1)

Country Link
FR (1) FR2168197A1 (en)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Also Published As

Publication number Publication date
FR2168197B1 (en) 1975-10-24

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Legal Events

Date Code Title Description
ST Notification of lapse