CH500331A - Papier à forte opacité - Google Patents

Papier à forte opacité

Info

Publication number
CH500331A
CH500331A CH737369A CH737369A CH500331A CH 500331 A CH500331 A CH 500331A CH 737369 A CH737369 A CH 737369A CH 737369 A CH737369 A CH 737369A CH 500331 A CH500331 A CH 500331A
Authority
CH
Switzerland
Prior art keywords
high opacity
opacity paper
paper
opacity
Prior art date
Application number
CH737369A
Other languages
English (en)
French (fr)
Inventor
M Bazler Seward
C Lane William
Original Assignee
Mead Corp
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 Mead Corp filed Critical Mead Corp
Publication of CH500331A publication Critical patent/CH500331A/fr

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
    • D21H17/68—Water-insoluble compounds, e.g. fillers, pigments siliceous, e.g. clays
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
    • D21H17/675—Oxides, hydroxides or carbonates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Paper (AREA)
CH737369A 1968-06-19 1969-05-14 Papier à forte opacité CH500331A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US73813368A 1968-06-19 1968-06-19

Publications (1)

Publication Number Publication Date
CH500331A true CH500331A (fr) 1970-12-15

Family

ID=24966723

Family Applications (1)

Application Number Title Priority Date Filing Date
CH737369A CH500331A (fr) 1968-06-19 1969-05-14 Papier à forte opacité

Country Status (9)

Country Link
AT (1) AT292444B (de)
BE (1) BE733301A (de)
BR (1) BR6909958D0 (de)
CH (1) CH500331A (de)
DE (1) DE1926122A1 (de)
ES (1) ES368481A1 (de)
FR (1) FR2011197A1 (de)
IL (1) IL32215A0 (de)
NL (1) NL6909160A (de)

Also Published As

Publication number Publication date
BE733301A (de) 1969-11-03
DE1926122A1 (de) 1970-01-02
NL6909160A (de) 1969-12-23
BR6909958D0 (pt) 1973-01-09
FR2011197A1 (en) 1970-02-27
IL32215A0 (en) 1969-07-30
AT292444B (de) 1971-08-25
ES368481A1 (es) 1971-05-01

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Legal Events

Date Code Title Description
PL Patent ceased