GB632218A - Improvements in the manufacture of paper - Google Patents

Improvements in the manufacture of paper

Info

Publication number
GB632218A
GB632218A GB7136/47A GB713647A GB632218A GB 632218 A GB632218 A GB 632218A GB 7136/47 A GB7136/47 A GB 7136/47A GB 713647 A GB713647 A GB 713647A GB 632218 A GB632218 A GB 632218A
Authority
GB
United Kingdom
Prior art keywords
paper
photographic use
manufacture
aldehydric
papeteries
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
GB7136/47A
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 Steinbach & Cie
Original Assignee
Papeteries Steinbach & Cie
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 Steinbach & Cie filed Critical Papeteries Steinbach & Cie
Publication of GB632218A publication Critical patent/GB632218A/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
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/47—Condensation polymers of aldehydes or ketones
    • D21H17/49—Condensation polymers of aldehydes or ketones with compounds containing hydrogen bound to nitrogen
    • D21H17/51—Triazines, e.g. melamine

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paper (AREA)

Abstract

632,218. Paper for photographic use. PAPETERIES STEINBACH & CIE. SOC. ANON. March 14, 1947, No. 7136. Convention date, Dec. 31, 1946. [Class 96] Paper for photographic use is made by adding to pulp 0.25 to 5 per cent of one or more aldehydric condensation products of aminotriazines, e.g. melamine in hot water with formaldehyde, to replace at least the greater part of the resin soap ordinarily used, and to prevent the penetration of the sensitive emulsion into the paper.
GB7136/47A 1946-12-31 1947-03-14 Improvements in the manufacture of paper Expired GB632218A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE632218X 1946-12-31

Publications (1)

Publication Number Publication Date
GB632218A true GB632218A (en) 1949-11-18

Family

ID=3876085

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7136/47A Expired GB632218A (en) 1946-12-31 1947-03-14 Improvements in the manufacture of paper

Country Status (1)

Country Link
GB (1) GB632218A (en)

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