IT8247794A0 - Composizione e procedimento di trattamento per migliorare la resistenza a trazione ad umido della carta - Google Patents

Composizione e procedimento di trattamento per migliorare la resistenza a trazione ad umido della carta

Info

Publication number
IT8247794A0
IT8247794A0 IT8247794A IT4779482A IT8247794A0 IT 8247794 A0 IT8247794 A0 IT 8247794A0 IT 8247794 A IT8247794 A IT 8247794A IT 4779482 A IT4779482 A IT 4779482A IT 8247794 A0 IT8247794 A0 IT 8247794A0
Authority
IT
Italy
Prior art keywords
paper
composition
improve
tensile strength
treatment procedure
Prior art date
Application number
IT8247794A
Other languages
English (en)
Other versions
IT1147614B (it
Inventor
Paul Allen Longo
Irving Edward Isgur
Original Assignee
Grace W R & Co
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 Grace W R & Co filed Critical Grace W R & Co
Publication of IT8247794A0 publication Critical patent/IT8247794A0/it
Application granted granted Critical
Publication of IT1147614B publication Critical patent/IT1147614B/it

Links

Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP 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
    • D21H17/00Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20Macromolecular organic compounds
    • D21H17/33Synthetic macromolecular compounds
    • D21H17/46Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/54Synthetic 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
    • D21H17/57Polyureas; Polyurethanes
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08Processes
    • C08G18/0804Manufacture of polymers containing ionic or ionogenic groups
    • C08G18/0809Manufacture of polymers containing ionic or ionogenic groups containing cationic or cationogenic groups
    • C08G18/0814Manufacture of polymers containing ionic or ionogenic groups containing cationic or cationogenic groups containing ammonium groups or groups forming them
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08Processes
    • C08G18/10Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
    • C08G18/12Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Paper (AREA)
IT47794/82A 1981-02-23 1982-02-15 Composizione e procedimento di trattamento per migliorare la resistenza a trazione ad umido della carta IT1147614B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US23732481A 1981-02-23 1981-02-23

Publications (2)

Publication Number Publication Date
IT8247794A0 true IT8247794A0 (it) 1982-02-15
IT1147614B IT1147614B (it) 1986-11-19

Family

ID=22893258

Family Applications (1)

Application Number Title Priority Date Filing Date
IT47794/82A IT1147614B (it) 1981-02-23 1982-02-15 Composizione e procedimento di trattamento per migliorare la resistenza a trazione ad umido della carta

Country Status (8)

Country Link
CA (1) CA1187659A (it)
DE (1) DE3205966A1 (it)
ES (1) ES8307841A1 (it)
FI (1) FI820446L (it)
FR (1) FR2500499A1 (it)
GB (1) GB2093491A (it)
IT (1) IT1147614B (it)
SE (1) SE8200472L (it)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2353005A1 (en) 2000-08-01 2002-02-01 Dai-Ichi Kogyo Seiyaku Co., Ltd. Blocked urethane prepolymers as paper wet strength agent
JP2003138497A (ja) * 2001-10-31 2003-05-14 Dai Ichi Kogyo Seiyaku Co Ltd 湿潤紙力増強剤
CN110982029B (zh) * 2019-11-21 2022-04-22 万华化学集团股份有限公司 一种用于水性太空革贝斯的水性聚氨酯树脂乳液及其制备方法、水性太空革贝斯及制备方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2400490C2 (de) * 1974-01-05 1982-06-03 Akzo Gmbh, 5600 Wuppertal Kationische Polyurethane und Verfahren zu deren Herstellung
DE2537653B2 (de) * 1975-08-23 1977-10-27 Bayer Ag, 5090 Leverkusen Papierleimungsmittel und verfahren zur papierleimung
DE3015143A1 (de) * 1979-04-30 1980-11-06 Grace W R & Co Polyurethanpolymere in waessrigem medium und verfahren zu deren herstellung
DE3102038A1 (de) * 1980-01-28 1981-12-10 W.R. Grace & Co., 02140 Cambridge, Mass. Polyurethanpolymeraminsalz als papieradditiv

Also Published As

Publication number Publication date
FR2500499A1 (fr) 1982-08-27
CA1187659A (en) 1985-05-28
FI820446A7 (fi) 1982-08-24
ES509801A0 (es) 1983-08-01
GB2093491A (en) 1982-09-02
ES8307841A1 (es) 1983-08-01
IT1147614B (it) 1986-11-19
SE8200472L (sv) 1982-08-24
DE3205966A1 (de) 1982-09-09
FI820446L (fi) 1982-08-24

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