DE888301C - Mass for molded shells - Google Patents

Mass for molded shells

Info

Publication number
DE888301C
DE888301C DES12694D DES0012694D DE888301C DE 888301 C DE888301 C DE 888301C DE S12694 D DES12694 D DE S12694D DE S0012694 D DES0012694 D DE S0012694D DE 888301 C DE888301 C DE 888301C
Authority
DE
Germany
Prior art keywords
powders
binder
molded shells
diisocyanate
mass
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
DES12694D
Other languages
German (de)
Inventor
Willi Dr Phil Mertens
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Priority to DES12694D priority Critical patent/DE888301C/en
Application granted granted Critical
Publication of DE888301C publication Critical patent/DE888301C/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
    • B22C1/2273—Polyurethanes; Polyisocyanates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Mold Materials And Core Materials (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Description

Masse für Formschalen Zusatz zum Patent 880 469 Gegenstand des Patents 880 469 ist eine Masse für Formschalen für Metall- oder Eisenguß. Sie, besteht aus einem körnigem Werkstoff als Grundkomponente, z. B. Quarzsand, Aluminiumoxyd, Mineralpulver, Metallpulver od.:dgl., und einem organischen Bindemittel, das aus einer Mischung von höhermolekularen Stoffen mit mehreren freien Hydroxyl-, Su'lfhydryl- oder Aminogruppen und Di- oder Polyisocyanaten :hergestellt ist.Composition for molded shells Addition to patent 880 469 The subject of patent 880 469 is a compound for molded shells for metal or iron casting. It consists of a granular material as a basic component, e.g. B. quartz sand, aluminum oxide, mineral powder, metal powder or the like.

Die Erfindung besteht in der Auswahl der Diisocyanate, die für den Zweck der Bindemittelbiläiung für derartige Schalenformen besonders günstig erscheinen;, und zwar handelt es sich -um Hexamethylen-,.Tolylen und Chlo,rphemyl@en-Diisocyanat. Außerdem können die Polymerisationsproidukte dieser Diisocyanate verwendet werden.The invention consists in the selection of the diisocyanates that are used for the The purpose of binder formation for such shell shapes appear particularly favorable; and it is -um hexamethylene -, tolylene and chlorophemyl @ ene diisocyanate. In addition, the polymerization products of these diisocyanates can be used.

Claims (1)

PATENTANSPRUCH: Masse für Formschalen für Metall oder Eisenguß, die aus einem organischen Bindemittel und einem körnigen Werkstoff, insbesondere Quarzsand, Aluminiumoxyd, andieren Mineralpulvern, Metallpulvern, Eisenpulvern od. dgl. besteht, wobei das Bindemittel aus einer Mischung von höhermolekularen Stoffen mit mehreren freien Hydroxyl-, Sulfhydryl- oder Aminogruppen und Dii- oder Polyisocyanaten hergestellt ist, nach Patent 88o 469, dadurch gekennzeichnet, daß als Bindemittelbestandteil Hexamethylen-Diisocyanat und dessen Polymerisationsprodulcte, Tolylen-Diisocyanat und dessen Polymerisationsprodukte oder Chlorphenylen-Diisocyanat und dessen Polymerisationsproduktc dienen.PATENT CLAIM: Composition for molded shells for metal or cast iron that made of an organic binder and a granular material, in particular quartz sand, Aluminum oxide, mineral powders, metal powders, iron powders or the like consists, wherein the binder is composed of a mixture of higher molecular weight substances with several free hydroxyl, sulfhydryl or amino groups and di- or polyisocyanates is produced, according to Patent 88o 469, characterized in that as a binder component Hexamethylene diisocyanate and its polymerisation products, tolylene diisocyanate and its polymerization products or chlorophenylene diisocyanate and its polymerization product c to serve.
DES12694D 1944-11-24 1944-11-24 Mass for molded shells Expired DE888301C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES12694D DE888301C (en) 1944-11-24 1944-11-24 Mass for molded shells

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES12694D DE888301C (en) 1944-11-24 1944-11-24 Mass for molded shells

Publications (1)

Publication Number Publication Date
DE888301C true DE888301C (en) 1953-08-31

Family

ID=7474074

Family Applications (1)

Application Number Title Priority Date Filing Date
DES12694D Expired DE888301C (en) 1944-11-24 1944-11-24 Mass for molded shells

Country Status (1)

Country Link
DE (1) DE888301C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3255500A (en) * 1965-02-01 1966-06-14 Archer Daniels Midland Co Foundry composition comprising sand, drying oil and polyisocyanate
DE1583521B1 (en) * 1966-08-01 1970-04-23 Ashland Oil Inc Masses for making foundry cores and molds

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3255500A (en) * 1965-02-01 1966-06-14 Archer Daniels Midland Co Foundry composition comprising sand, drying oil and polyisocyanate
DE1583521B1 (en) * 1966-08-01 1970-04-23 Ashland Oil Inc Masses for making foundry cores and molds

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