FR865378A - Improvements in the manufacture of protective papers against toxic or aggressive gases and products - Google Patents

Improvements in the manufacture of protective papers against toxic or aggressive gases and products

Info

Publication number
FR865378A
FR865378A FR865378DA FR865378A FR 865378 A FR865378 A FR 865378A FR 865378D A FR865378D A FR 865378DA FR 865378 A FR865378 A FR 865378A
Authority
FR
France
Prior art keywords
manufacture
products
against toxic
aggressive gases
protective papers
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.)
Expired
Application number
Other languages
French (fr)
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.)
Papeteries De Vizille SA Des
Original Assignee
Papeteries De Vizille SA Des
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 Papeteries De Vizille SA Des filed Critical Papeteries De Vizille SA Des
Application granted granted Critical
Publication of FR865378A publication Critical patent/FR865378A/en
Expired legal-status Critical Current

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
    • D21H17/66—Salts, e.g. alums

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
FR865378D 1940-01-19 1940-01-19 Improvements in the manufacture of protective papers against toxic or aggressive gases and products Expired FR865378A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR865378T 1940-01-19

Publications (1)

Publication Number Publication Date
FR865378A true FR865378A (en) 1941-05-21

Family

ID=9344332

Family Applications (1)

Application Number Title Priority Date Filing Date
FR865378D Expired FR865378A (en) 1940-01-19 1940-01-19 Improvements in the manufacture of protective papers against toxic or aggressive gases and products

Country Status (1)

Country Link
FR (1) FR865378A (en)

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