GB1136307A - Improvements in or relating to foundry moulding compositions and to a process for theproduction of foundry cores - Google Patents

Improvements in or relating to foundry moulding compositions and to a process for theproduction of foundry cores

Info

Publication number
GB1136307A
GB1136307A GB33658/66A GB3365866A GB1136307A GB 1136307 A GB1136307 A GB 1136307A GB 33658/66 A GB33658/66 A GB 33658/66A GB 3365866 A GB3365866 A GB 3365866A GB 1136307 A GB1136307 A GB 1136307A
Authority
GB
United Kingdom
Prior art keywords
core
box
foundry
mould
mixes
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
GB33658/66A
Inventor
Peter Herbert Richard Br Lemon
Christopher Terron
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.)
Hexion UK Ltd
Original Assignee
Borden Chemical UK 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 Borden Chemical UK Ltd filed Critical Borden Chemical UK Ltd
Priority to GB33658/66A priority Critical patent/GB1136307A/en
Priority to FR115468A priority patent/FR1532138A/en
Priority to ES343433A priority patent/ES343433A1/en
Publication of GB1136307A publication Critical patent/GB1136307A/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
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/16—Catalysts
    • 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
    • B22C1/2273—Polyurethanes; Polyisocyanates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
    • C08K3/013—Fillers, pigments or reinforcing additives

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)
  • Mold Materials And Core Materials (AREA)

Abstract

1,136,307. Moulding processes. BORDEN CHEMICAL CO. (U.K.) Ltd. 10 July, 1967 [26 July, 1966], No. 33658/66. Heading B3F. [Also in Division C3] Foundry moulds and cores are prepared by mixing and charging to a mould or core-box a moulding mixture comprising a granular refractory material and 0À5 to 5 per cent by weight of a binder comprising a liquid polyol of hydroxy value 100 to 600 mg. KOH/gm, a polyisocyanate in an amount sufficient to provide 0À8 to 1À5 isocyanate groups per OH group of the polyol and an amount of an accelerator sufficient to cause the moulding mixture to set within 5 minutes at 25‹ C. and finally allowing the moulding mixture to set while in contact with the mould or core-box. The mixture may be prepared from two separate sand sub-mixes. The mould or core-box may be warmed before the introduction of the foundry mix. In examples various foundry mixes are discharged into a cylindrical 2-inch diameter core-box and rammed three times with a 14 lb. weight dropped from a height of 2 inches before setting or alternatively the mixes may be charged to the cartridge of an air-operated core blower and blown into a mould or core-box.
GB33658/66A 1966-07-26 1966-07-26 Improvements in or relating to foundry moulding compositions and to a process for theproduction of foundry cores Expired GB1136307A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB33658/66A GB1136307A (en) 1966-07-26 1966-07-26 Improvements in or relating to foundry moulding compositions and to a process for theproduction of foundry cores
FR115468A FR1532138A (en) 1966-07-26 1967-07-25 Mixture suitable for foundry
ES343433A ES343433A1 (en) 1966-07-26 1967-07-26 Improvements in or relating to foundry moulding compositions and to a process for theproduction of foundry cores

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB33658/66A GB1136307A (en) 1966-07-26 1966-07-26 Improvements in or relating to foundry moulding compositions and to a process for theproduction of foundry cores

Publications (1)

Publication Number Publication Date
GB1136307A true GB1136307A (en) 1968-12-11

Family

ID=10355757

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33658/66A Expired GB1136307A (en) 1966-07-26 1966-07-26 Improvements in or relating to foundry moulding compositions and to a process for theproduction of foundry cores

Country Status (2)

Country Link
ES (1) ES343433A1 (en)
GB (1) GB1136307A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3985699A (en) 1974-06-07 1976-10-12 Ab Bofors Method of manufacturing mould members of polyurethane-bonded granular material
DE2811476A1 (en) * 1977-03-16 1978-09-21 Ashland Oil Inc MOLDING COMPOUNDS AND METHODS FOR MANUFACTURING MOLDED PARTS
FR2491363A1 (en) * 1980-10-06 1982-04-09 Mitsubishi Petrochemical Co BINDER COMPOSITION FOR SAND FOUNDRY MOLDS AND CORES
GB2130511A (en) * 1982-11-12 1984-06-06 Gen Kinematics Corp Method and apparatus for making foundry molds

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3985699A (en) 1974-06-07 1976-10-12 Ab Bofors Method of manufacturing mould members of polyurethane-bonded granular material
DE2811476A1 (en) * 1977-03-16 1978-09-21 Ashland Oil Inc MOLDING COMPOUNDS AND METHODS FOR MANUFACTURING MOLDED PARTS
FR2491363A1 (en) * 1980-10-06 1982-04-09 Mitsubishi Petrochemical Co BINDER COMPOSITION FOR SAND FOUNDRY MOLDS AND CORES
GB2130511A (en) * 1982-11-12 1984-06-06 Gen Kinematics Corp Method and apparatus for making foundry molds

Also Published As

Publication number Publication date
ES343433A1 (en) 1968-09-01

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