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GB939532A - Method of preparing fibrous sheet material - Google Patents

Method of preparing fibrous sheet material

Info

Publication number
GB939532A
GB939532A GB1872260A GB1872260A GB939532A GB 939532 A GB939532 A GB 939532A GB 1872260 A GB1872260 A GB 1872260A GB 1872260 A GB1872260 A GB 1872260A GB 939532 A GB939532 A GB 939532A
Authority
GB
United Kingdom
Prior art keywords
resin
asbestos
sheet material
suspensions
fillers
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
GB1872260A
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.)
Wacker Chemie AG
Original Assignee
Wacker Chemie 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 Wacker Chemie AG filed Critical Wacker Chemie AG
Publication of GB939532A publication Critical patent/GB939532A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/30—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Other silicon-containing organic compounds; Boron-organic compounds
    • C04B26/32—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Other silicon-containing organic compounds; Boron-organic compounds containing silicon
    • 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
    • D21H17/59—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 silicon

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Laminated Bodies (AREA)

Abstract

Compositions for use in the preparation of asbestos sheet material comprise an aqueous dispersion of a silicone resin containing asbestos fibre or particles in suspension, a curing agent for the resin and 0,5 to 1,5% by weight of an emulsifying agent, calculated on the weight of the resin. The resin is an organopolysiloxane of the average general formula <FORM:0939532/IV(a)/1> where n is 1,0 to 1,7 and R is a monovalent aliphatic or monocyclic aryl radical. The catalyst may be a water-soluble amine or an organometallic compound, e.g. a dialkyltin diacylate. The emulsifying agent may be the condensation product of an amine with higher fatty acids or it may be based on polyethylene glycol. The suspensions may also contain other fibres, e.g. glass, mineral wool such as basalt wool, cotton or cellulose; fillers and pigments, e.g. mica flour, stone powders such as ground shale, dry kaolin, iron oxide, titanium dioxide, zinc oxide, barium titanate, barium zirconate, zirconium silicate, magnesium silicate, calcium silicate, calcium carbonate, calcium sulphate, siliceous chalk, diatomaceous earth, clay, silica, gas soot, graphite, charcoal powder, copper powder, aluminium powder, cellulose, starch, dextrin, dextrin esters, pectin, polyethylene, polypropylene, poly(vinylether) and polyvinylpyrrolidone. The suspensions are used in making asbestos sheet material. The dispersion may be broken so that the resin is picked up by the asbestos and other fillers by adding acids or bases, e.g. acetic acid, ammonia and triethanolamine, or by the addition of inert water-soluble compounds such as acetone, by heating with steam, or simply by the addition of the asbestos and the resin is cured by heating.
GB1872260A 1959-05-26 1960-05-26 Method of preparing fibrous sheet material Expired GB939532A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW0025687 1959-05-26

Publications (1)

Publication Number Publication Date
GB939532A true GB939532A (en) 1963-10-16

Family

ID=7598152

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1872260A Expired GB939532A (en) 1959-05-26 1960-05-26 Method of preparing fibrous sheet material

Country Status (1)

Country Link
GB (1) GB939532A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4919754A (en) * 1984-05-10 1990-04-24 Albright & Wilson Limited Composition wherein recycled cellulosic pulp is deinked

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4919754A (en) * 1984-05-10 1990-04-24 Albright & Wilson Limited Composition wherein recycled cellulosic pulp is deinked
US5073234A (en) * 1984-05-10 1991-12-17 Albright & Wilson Limited Composition and method of deinking of recycled cellulosic material

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