GB523185A - Manufacture of wet-strengthened paper products - Google Patents

Manufacture of wet-strengthened paper products

Info

Publication number
GB523185A
GB523185A GB2992/39A GB299239A GB523185A GB 523185 A GB523185 A GB 523185A GB 2992/39 A GB2992/39 A GB 2992/39A GB 299239 A GB299239 A GB 299239A GB 523185 A GB523185 A GB 523185A
Authority
GB
United Kingdom
Prior art keywords
formaldehyde
urea
resin
per cent
paper
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
GB2992/39A
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.)
Brown Co
Original Assignee
Brown 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 Brown Co filed Critical Brown Co
Publication of GB523185A publication Critical patent/GB523185A/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
    • D21H17/50—Acyclic compounds

Landscapes

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

Abstract

523,185. Paper containing artificial resins; urea-formaldehyde polymers. BROWN CO. Jan. 28, 1939, No. 2992. Convention date, Jan. 28, 1938. [Class 96] [Also in Group IV] Paper, which may be absorbent, for towels, handkerchiefs &c. or may be waxed for wrapping foodstuffs &c. is given wet-strength by incorporating into the paper-making pulp # to 10 per cent of heat-polymerizable resins or resinforming substances e.g. urea-formaldehyde, phenol formaldehyde, acrylate polymers, or polyvinyl esters, added as solutions, suspensions, or emulsions, in water, or organic liquids, and exposing the resin-containing sheet to a temperature of 450 to 550‹F. for 1 second or to a lower temperature e.g. 150 to 300‹F. for 5 minutes to 24 hours, to complete the polymerization of the resin. The finished sheet may then be rehumidified by spraying. In an example 1¢ per cent. of intermediate stage urea-formaldehyde polymer and 1 per cent. resin soap are added at the beater to bleached kraft pulp and paper made therefrom passed through paraffin wax at. 230‹F. The waterproofing bath may be at a temperature sufficient to polymerize the resin. An intermediate-stage urea formaldehyde polymer may be prepared by cooking 100 parts of urea with 120 of formaldehyde in 203 'of water and 27 or 28 per cent. ammonia water at 190 to 200‹F. until the viscosity has increased substantially and is rising rapidly. Specification 502,425 is referred to.
GB2992/39A 1938-01-28 1939-01-28 Manufacture of wet-strengthened paper products Expired GB523185A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US523185XA 1938-01-28 1938-01-28

Publications (1)

Publication Number Publication Date
GB523185A true GB523185A (en) 1940-07-08

Family

ID=21976817

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2992/39A Expired GB523185A (en) 1938-01-28 1939-01-28 Manufacture of wet-strengthened paper products

Country Status (3)

Country Link
CA (1) CA393326A (en)
FR (1) FR849595A (en)
GB (1) GB523185A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2495232A (en) * 1943-05-25 1950-01-24 Comptoir Textiles Artificiels Cellulose derivatives and process of preparing same
US2539183A (en) * 1944-11-29 1951-01-23 Chester H Child Method of making mositureesistant paper
US2548513A (en) * 1944-04-22 1951-04-10 Eastman Kodak Co Method of making high wet strength paper
US2559220A (en) * 1942-07-31 1951-07-03 American Cyanamid Co Manufacture of cellulose products of improved wet strength
US2559221A (en) * 1942-07-31 1951-07-03 American Cyanamid Co Manufacture of wet strength paper
US2582840A (en) * 1946-09-07 1952-01-15 American Cyanamid Co Sizing fibrous materials with modified urea-formaldehyde resin
US2590846A (en) * 1944-11-30 1952-04-01 Richard H Cutting Plaster base
US2634246A (en) * 1950-11-13 1953-04-07 Allied Chem & Dye Corp Resin for wet strength paper and process for making it
DE969348C (en) * 1950-02-09 1958-05-22 American Viscose Corp Process for the production of porous fiber products such as felts, fleeces or paper from synthetic fibers
US3264171A (en) * 1962-07-18 1966-08-02 Sealkote & Chemical Corp Method of forming fiber-resin mold products wherein the resin is an intermediate stage thermosetting resin

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2559220A (en) * 1942-07-31 1951-07-03 American Cyanamid Co Manufacture of cellulose products of improved wet strength
US2559221A (en) * 1942-07-31 1951-07-03 American Cyanamid Co Manufacture of wet strength paper
US2495232A (en) * 1943-05-25 1950-01-24 Comptoir Textiles Artificiels Cellulose derivatives and process of preparing same
US2548513A (en) * 1944-04-22 1951-04-10 Eastman Kodak Co Method of making high wet strength paper
US2539183A (en) * 1944-11-29 1951-01-23 Chester H Child Method of making mositureesistant paper
US2590846A (en) * 1944-11-30 1952-04-01 Richard H Cutting Plaster base
US2582840A (en) * 1946-09-07 1952-01-15 American Cyanamid Co Sizing fibrous materials with modified urea-formaldehyde resin
DE969348C (en) * 1950-02-09 1958-05-22 American Viscose Corp Process for the production of porous fiber products such as felts, fleeces or paper from synthetic fibers
US2634246A (en) * 1950-11-13 1953-04-07 Allied Chem & Dye Corp Resin for wet strength paper and process for making it
US3264171A (en) * 1962-07-18 1966-08-02 Sealkote & Chemical Corp Method of forming fiber-resin mold products wherein the resin is an intermediate stage thermosetting resin

Also Published As

Publication number Publication date
CA393326A (en) 1940-12-24
FR849595A (en) 1939-11-27

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