GB1210239A - Improvements in or relating to resin-coated granular refractory material - Google Patents

Improvements in or relating to resin-coated granular refractory material

Info

Publication number
GB1210239A
GB1210239A GB5019967A GB5019967A GB1210239A GB 1210239 A GB1210239 A GB 1210239A GB 5019967 A GB5019967 A GB 5019967A GB 5019967 A GB5019967 A GB 5019967A GB 1210239 A GB1210239 A GB 1210239A
Authority
GB
United Kingdom
Prior art keywords
novolak
resole
refractory material
phenol
added
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
GB5019967A
Inventor
Peter Herbert Richard Br Lemon
John Ireland
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 GB5019967A priority Critical patent/GB1210239A/en
Priority to FR1590399D priority patent/FR1590399A/fr
Priority to ES359836A priority patent/ES359836A1/en
Publication of GB1210239A publication Critical patent/GB1210239A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Abstract

1,210,239. Foundry moulding composition containing a Novolak and resole resin. BORDEN CHEMICAL CO. (U.K.) Ltd. 23 Oct., 1968 [3 Nov., 1967], No. 50199/67. Heading C3N. A foundry moulding composition comprises a granular refractory material, the particles of which are coated with a composition which has a pH less than 5.5 (measured in I.M.S.), is substantially nitrogen-free and comprises a Novolak and a resole. The Novolak may be prepared from phenol, m-cresol, 3,5-xylenol or resorcinol and 0À5-0À88 moles per mole of phenol, of aqueous formaldehyde solution in the presence of HC1, H 2 SO 4 , H 3 PO 4 or (COOH) 2 as catalyst. The resole may be prepared from phenol m-cresol or 3,5-xylenol and 1À6-2À8 moles per mole of phenol of aqueous formaldehyde solution in the presence of NaOH or Ca(OH) 2 as catalyst. In examples, a stainless steel reactor is used for this step. The refractory material may be silica sand, quartz, olivine or zirconia. In one procedure the Novolak and resole are added to heated refractory material and mixing is continued until the refractory material is cool, 1-2% of water optionally being added to accelerate cooling. In an alternative procedure the Novolak, containing acid curing catalyst, and the resole are added to separate batches of sand which are subsequently mixed. The moulding composition may also include a wax, mill scale and rosin, and a material such as Ca 2 SiO 4 , silica gel, CaSO 4 or CuSO 4 to absorb water during storage. The pH adjuster may be salicylic acid.
GB5019967A 1967-11-03 1967-11-03 Improvements in or relating to resin-coated granular refractory material Expired GB1210239A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB5019967A GB1210239A (en) 1967-11-03 1967-11-03 Improvements in or relating to resin-coated granular refractory material
FR1590399D FR1590399A (en) 1967-11-03 1968-10-31
ES359836A ES359836A1 (en) 1967-11-03 1968-11-02 Improvements in or relating to resin-coated granular refractory material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5019967A GB1210239A (en) 1967-11-03 1967-11-03 Improvements in or relating to resin-coated granular refractory material

Publications (1)

Publication Number Publication Date
GB1210239A true GB1210239A (en) 1970-10-28

Family

ID=10455045

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5019967A Expired GB1210239A (en) 1967-11-03 1967-11-03 Improvements in or relating to resin-coated granular refractory material

Country Status (3)

Country Link
ES (1) ES359836A1 (en)
FR (1) FR1590399A (en)
GB (1) GB1210239A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2413925A1 (en) * 1973-03-22 1974-09-26 Lignyte Co Ltd Process for the production of resin-coated refractory granular masses, in particular molding sand
US5051454A (en) * 1988-12-22 1991-09-24 Borden, Inc. Phenolic resin compositions
US5340888A (en) * 1988-12-22 1994-08-23 Borden Inc. Phenolic resin composition
CN104923737A (en) * 2015-06-01 2015-09-23 含山县恒翔机械制造有限公司 Stopper of rear door of car
CN104985120A (en) * 2015-06-01 2015-10-21 含山县恒翔机械制造有限公司 Fabrication method of tail section of minicar exhaust pipe

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2413925A1 (en) * 1973-03-22 1974-09-26 Lignyte Co Ltd Process for the production of resin-coated refractory granular masses, in particular molding sand
US5051454A (en) * 1988-12-22 1991-09-24 Borden, Inc. Phenolic resin compositions
US5340888A (en) * 1988-12-22 1994-08-23 Borden Inc. Phenolic resin composition
CN104923737A (en) * 2015-06-01 2015-09-23 含山县恒翔机械制造有限公司 Stopper of rear door of car
CN104985120A (en) * 2015-06-01 2015-10-21 含山县恒翔机械制造有限公司 Fabrication method of tail section of minicar exhaust pipe

Also Published As

Publication number Publication date
ES359836A1 (en) 1970-06-16
FR1590399A (en) 1970-04-13

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years