GB1223311A - Improvements in and relating to the manufacture of paper - Google Patents

Improvements in and relating to the manufacture of paper

Info

Publication number
GB1223311A
GB1223311A GB166868A GB166868A GB1223311A GB 1223311 A GB1223311 A GB 1223311A GB 166868 A GB166868 A GB 166868A GB 166868 A GB166868 A GB 166868A GB 1223311 A GB1223311 A GB 1223311A
Authority
GB
United Kingdom
Prior art keywords
pulp
pulps
jan
paper
relating
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
GB166868A
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.)
Hoechst AG
Original Assignee
Hoechst AG
Farbwerke Hoechst 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 Hoechst AG, Farbwerke Hoechst AG filed Critical Hoechst AG
Publication of GB1223311A publication Critical patent/GB1223311A/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
    • D21H17/54—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen
    • D21H17/57—Polyureas; Polyurethanes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G71/00—Macromolecular compounds obtained by reactions forming a ureide or urethane link, otherwise, than from isocyanate radicals in the main chain of the macromolecule
    • C08G71/02—Polyureas
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
    • C08L75/02—Polyureas

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Paper (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)

Abstract

1,223,311. Papermaking. FARBWERKE HOECHST A.G. 11 Jan., 1968 [11 Jan., 1967], No. 1668/68. Headings D2A and D2B. In the making of paper, at any stage from beating to the transfer of pulp on to the wire and in the presence of sulphate ions under acid conditions, there is incorporated into the pulp a polymeric condensation product of urea and a 1, 2-alkyleneimine having a substitutable hydrogen atom at the nitrogen atom, or an oligomer thereof. These polymers improve freeness and filler-retention and import wet strength. Fillers referred to are kaolin, other silicates, titanium dioxide, and zirconium dioxide. The pulp may be acidified by the addition of aluminium sulphate. In the examples pulps of the invention are compared with pulps using polyethylenimine.
GB166868A 1967-01-11 1968-01-11 Improvements in and relating to the manufacture of paper Expired GB1223311A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF0051225 1967-01-11

Publications (1)

Publication Number Publication Date
GB1223311A true GB1223311A (en) 1971-02-24

Family

ID=7104436

Family Applications (1)

Application Number Title Priority Date Filing Date
GB166868A Expired GB1223311A (en) 1967-01-11 1968-01-11 Improvements in and relating to the manufacture of paper

Country Status (5)

Country Link
AT (1) AT272065B (en)
BE (1) BE709235A (en)
CH (1) CH506656A (en)
FR (1) FR1553208A (en)
GB (1) GB1223311A (en)

Also Published As

Publication number Publication date
AT272065B (en) 1969-06-25
BE709235A (en) 1968-07-11
FR1553208A (en) 1969-01-10
CH506656A (en) 1971-04-30

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