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GB666690A - Improvements in and relating to acid resisting cements - Google Patents

Improvements in and relating to acid resisting cements

Info

Publication number
GB666690A
GB666690A GB1257848A GB1257848A GB666690A GB 666690 A GB666690 A GB 666690A GB 1257848 A GB1257848 A GB 1257848A GB 1257848 A GB1257848 A GB 1257848A GB 666690 A GB666690 A GB 666690A
Authority
GB
United Kingdom
Prior art keywords
weight
per cent
acid resisting
relating
poises
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
GB1257848A
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.)
FRANCIS ROBERT HIMSWORTH
Imperial Chemical Industries Ltd
Original Assignee
FRANCIS ROBERT HIMSWORTH
Imperial Chemical Industries Ltd
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 FRANCIS ROBERT HIMSWORTH, Imperial Chemical Industries Ltd filed Critical FRANCIS ROBERT HIMSWORTH
Priority to GB1257848A priority Critical patent/GB666690A/en
Publication of GB666690A publication Critical patent/GB666690A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
    • 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
    • C04B26/02—Macromolecular compounds
    • C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
    • H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
    • H03K4/10—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only
    • H03K4/26—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth current is produced through an inductor
    • H03K4/28—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth current is produced through an inductor using a tube operating as a switching device
    • H03K4/32—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth current is produced through an inductor using a tube operating as a switching device combined with means for generating the driving pulses
    • H03K4/34—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth current is produced through an inductor using a tube operating as a switching device combined with means for generating the driving pulses using a single tube with positive feedback through a transformer

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Phenolic Resins Or Amino Resins (AREA)

Abstract

In acid resisting cements comprising a thermosetting synthetic resin syrup, an accelerator therefore and ball or china clay as filler, the clay employed has a moisture content of less than 2 per cent by weight and comprises at least 40 per cent by weight of the mixture. Phenol-formaldehyde syrups of 50 poises viscosity at 25 DEG C. and furfuryl alcohol resin syrup of viscosity 5 poises are specified together with accelerators such as aromatic sulphonic acids or chlorides which may be used in from 10-40 per cent by weight of the resin.
GB1257848A 1948-05-07 1948-05-07 Improvements in and relating to acid resisting cements Expired GB666690A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1257848A GB666690A (en) 1948-05-07 1948-05-07 Improvements in and relating to acid resisting cements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1257848A GB666690A (en) 1948-05-07 1948-05-07 Improvements in and relating to acid resisting cements

Publications (1)

Publication Number Publication Date
GB666690A true GB666690A (en) 1952-02-20

Family

ID=10007227

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1257848A Expired GB666690A (en) 1948-05-07 1948-05-07 Improvements in and relating to acid resisting cements

Country Status (1)

Country Link
GB (1) GB666690A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2134120A (en) * 1982-10-28 1984-08-08 Herman Clark Wadsworth Corrosion resistant materials and method of making same
GB2415700A (en) * 2004-07-02 2006-01-04 Tarmac Recycling Ltd Building material derived from plastics

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2134120A (en) * 1982-10-28 1984-08-08 Herman Clark Wadsworth Corrosion resistant materials and method of making same
GB2415700A (en) * 2004-07-02 2006-01-04 Tarmac Recycling Ltd Building material derived from plastics

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