GB1001802A - Improvements in or relating to sand coated with a resin for the hot-box method of manufacture of foundry cores - Google Patents

Improvements in or relating to sand coated with a resin for the hot-box method of manufacture of foundry cores

Info

Publication number
GB1001802A
GB1001802A GB1546363A GB1546363A GB1001802A GB 1001802 A GB1001802 A GB 1001802A GB 1546363 A GB1546363 A GB 1546363A GB 1546363 A GB1546363 A GB 1546363A GB 1001802 A GB1001802 A GB 1001802A
Authority
GB
United Kingdom
Prior art keywords
resin
relating
hot
manufacture
box method
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
GB1546363A
Inventor
Eric Parkes
Anthony Walter Lawrence
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.)
Fordath Ltd
Original Assignee
Fordath 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 Fordath Ltd filed Critical Fordath Ltd
Priority to GB1546363A priority Critical patent/GB1001802A/en
Priority to DE19641495780 priority patent/DE1495780B2/en
Priority to FR970613A priority patent/FR1387798A/en
Publication of GB1001802A publication Critical patent/GB1001802A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C08G8/00—Condensation polymers of aldehydes or ketones with phenols only
    • C08G8/04—Condensation polymers of aldehydes or ketones with phenols only of aldehydes
    • C08G8/08—Condensation polymers of aldehydes or ketones with phenols only of aldehydes of formaldehyde, e.g. of formaldehyde formed in situ
    • C08G8/10—Condensation polymers of aldehydes or ketones with phenols only of aldehydes of formaldehyde, e.g. of formaldehyde formed in situ with phenol
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
    • B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
    • B22C1/20—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents
    • B22C1/22—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents of resins or rosins
    • B22C1/2233—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents of resins or rosins obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • B22C1/2246—Condensation polymers of aldehydes and ketones
    • B22C1/2253—Condensation polymers of aldehydes and ketones with phenols
    • 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
    • C08G16/00—Condensation polymers of aldehydes or ketones with monomers not provided for in the groups C08G4/00 - C08G14/00
    • C08G16/02—Condensation polymers of aldehydes or ketones with monomers not provided for in the groups C08G4/00 - C08G14/00 of aldehydes
    • C08G16/025—Condensation polymers of aldehydes or ketones with monomers not provided for in the groups C08G4/00 - C08G14/00 of aldehydes with heterocyclic organic compounds
    • C08G16/0256—Condensation polymers of aldehydes or ketones with monomers not provided for in the groups C08G4/00 - C08G14/00 of aldehydes with heterocyclic organic compounds containing oxygen in the ring
    • C08G16/0262—Furfuryl alcohol
    • 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
    • C08G8/00—Condensation polymers of aldehydes or ketones with phenols only
    • C08G8/28—Chemically modified polycondensates

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)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mold Materials And Core Materials (AREA)
  • Phenolic Resins Or Amino Resins (AREA)

Abstract

A resin-forming composition is obtained by reacting 2.25 to 4.5 moles of formaldehyde with 1 mole of phenol in the presence of furtural alcohol under aqueous alkaline conditions. The product is mixed with sand, a curing agent, and optionally a secondary binding agent such as a rosin to give foundry mould compositions. Urea may also be included to react with excess formaldehyde. The curing agent may be a mixture of an acid and an ester which decomposes to release further acid during curing, e.g. a mixture of p-toluene sulphonic acid and an alkyl ester thereof.
GB1546363A 1963-04-19 1963-04-19 Improvements in or relating to sand coated with a resin for the hot-box method of manufacture of foundry cores Expired GB1001802A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB1546363A GB1001802A (en) 1963-04-19 1963-04-19 Improvements in or relating to sand coated with a resin for the hot-box method of manufacture of foundry cores
DE19641495780 DE1495780B2 (en) 1963-04-19 1964-03-03 HEAT-RESISTANT MOLDING COMPOUND FOR FOUNDRY PURPOSES
FR970613A FR1387798A (en) 1963-04-19 1964-04-10 Improvements to resins, sand and resin-based compositions for the production of foundry cores, and processes for the production of such compositions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1546363A GB1001802A (en) 1963-04-19 1963-04-19 Improvements in or relating to sand coated with a resin for the hot-box method of manufacture of foundry cores

Publications (1)

Publication Number Publication Date
GB1001802A true GB1001802A (en) 1965-08-18

Family

ID=10059576

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1546363A Expired GB1001802A (en) 1963-04-19 1963-04-19 Improvements in or relating to sand coated with a resin for the hot-box method of manufacture of foundry cores

Country Status (2)

Country Link
DE (1) DE1495780B2 (en)
GB (1) GB1001802A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES493602A0 (en) * 1980-07-22 1981-02-16 Iglesias Hernandez Eduardo AGGREGATE AGGLOMERATE PROCEDURE WITH CATALYST ACTIVATED BY VACUUM

Also Published As

Publication number Publication date
DE1495780A1 (en) 1969-04-10
DE1495780B2 (en) 1971-10-14

Similar Documents

Publication Publication Date Title
GB1098029A (en) Improved binder composition
GB1211929A (en) Cold-cure phenolic-resin binders for foundry moulds and cores
DE69019050T2 (en) Phenolic resin compositions.
CO4230258A1 (en) BINDING RESINS FOR THE SAND OF THE MODIFIED DIALDEHYDE FOUNDRY PHENOLIC CORES, PROCESS TO PREPARE THEM, AND PROCESS TO PREPARE THE FOUNDRY CORES AND MOLDS USED BY THE SAME
GB954084A (en) Improvements in or relating to sand binding agents
GB1001802A (en) Improvements in or relating to sand coated with a resin for the hot-box method of manufacture of foundry cores
KR900014449A (en) Method for producing modified benzyl ether resol resin and molding composition for casting containing the resin and method for manufacturing casting core and mold
GB985175A (en) Amino plastic binders for the production of sand cores
GB1303707A (en)
KR900016361A (en) Ester curing agent, binder containing the same, and molding composition for casting containing the same
JPS5772750A (en) Binder composition for mold
CA2088199A1 (en) Alkaline resol phenol-aldehyde resin binder compositions
GB835792A (en) Improvements in or relating to resin coated sand
GB766066A (en) Improvements relating to expanded synthetic resins
JPS5578049A (en) Resin composition for shell mold
KR900016403A (en) How to improve the flowability of resin coated sand
GB927978A (en) Manufacture of foundry moulds and cores
ES341069A1 (en) Method of preparing foundry moulds and cores of sand
GB1179284A (en) Improvements relating to the Production of Resin-Coated Sand.
ES374262A1 (en) Improvements in or relating to a process for the production of foundry cores and compositions therefor
GB773338A (en) Improvements in or relating to sand moulds and cores for casting metals
GB810286A (en) Improved fibrous composition for use in the manufacture of pencils
GB1306521A (en) Preparation of moulded articles
GB1379727A (en) Production of cores for use in the production of metal castings
GB735564A (en) Improvements in synthetic resin binders for making foundry moulding mixtures and in such mixtures