BR7706747A - Aperfeicoamento em composicao para fundicao - Google Patents

Aperfeicoamento em composicao para fundicao

Info

Publication number
BR7706747A
BR7706747A BR7706747A BR7706747A BR7706747A BR 7706747 A BR7706747 A BR 7706747A BR 7706747 A BR7706747 A BR 7706747A BR 7706747 A BR7706747 A BR 7706747A BR 7706747 A BR7706747 A BR 7706747A
Authority
BR
Brazil
Prior art keywords
foundation
improvement
composition
Prior art date
Application number
BR7706747A
Other languages
English (en)
Inventor
D Dumolo
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
Publication of BR7706747A publication Critical patent/BR7706747A/pt

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
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30—Low-molecular-weight compounds
    • C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
    • C08G18/3203—Polyhydroxy compounds
    • C08G18/3215—Polyhydroxy compounds containing aromatic groups or benzoquinone groups
    • 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
    • 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
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
    • C08G18/6666—Compounds of group C08G18/48 or C08G18/52
    • C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
    • C08G18/6674—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
    • 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
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/80—Masked polyisocyanates
    • C08G18/8003—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen
    • C08G18/8051—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/36

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)
  • Polyurethanes Or Polyureas (AREA)
  • Adhesives Or Adhesive Processes (AREA)
BR7706747A 1977-07-21 1977-10-10 Aperfeicoamento em composicao para fundicao BR7706747A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB30608/77A GB1601938A (en) 1977-07-21 1977-07-21 Foundry binders

Publications (1)

Publication Number Publication Date
BR7706747A true BR7706747A (pt) 1978-08-08

Family

ID=10310329

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7706747A BR7706747A (pt) 1977-07-21 1977-10-10 Aperfeicoamento em composicao para fundicao

Country Status (5)

Country Link
US (2) US4209428A (pt)
BR (1) BR7706747A (pt)
CA (1) CA1082833A (pt)
GB (1) GB1601938A (pt)
MX (1) MX148158A (pt)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54500107A (pt) * 1977-12-07 1979-12-27
US4311620A (en) * 1980-05-08 1982-01-19 Hooker Chemicals & Plastics Corp. Foundry aggregate binders and foundry compositions prepared therefrom
US4366266A (en) * 1981-02-05 1982-12-28 Valvoline Oil & Chemicals Ltd. Binder compositions and process for making molded products therewith
DE3339174C3 (de) * 1983-10-28 1995-06-01 Schuiling Metall Chemie B V Kalthärtbares Bindemittel auf Polyurethan-Basis für Gießereizwecke
US4692479A (en) * 1985-07-19 1987-09-08 Ashland Oil, Inc. Self-setting urethane adhesive paste system
US4698377A (en) * 1986-09-26 1987-10-06 Acme Resin Corporation Binder compositions containing phenolic resins and esters of alkoxy acids
US5264535A (en) * 1991-06-12 1993-11-23 Acme Resin Corp. Low free formaldehyde phenolic polyol formulation
US5189079A (en) * 1991-06-12 1993-02-23 Acme Resin Corp. Low free formaldehyde phenolic polyol formulation
EP0746432B1 (en) * 1992-09-08 2001-12-05 Ashland Oil, Inc. Foundry mixes containing a polyether polyol and their use
US20050250874A1 (en) * 2004-05-04 2005-11-10 Ha-International, Llc Phenolic urethane foundry binder
WO2006071549A1 (en) * 2004-12-23 2006-07-06 Dow Global Technologies Inc. An isocyanate composition comprising a vegetable oil and composites therefrom

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2374136A (en) * 1940-11-01 1945-04-17 Du Pont Catalytic reaction of isocyanates with organic compounds
US3255500A (en) * 1965-02-01 1966-06-14 Archer Daniels Midland Co Foundry composition comprising sand, drying oil and polyisocyanate
US3403721A (en) * 1966-06-13 1968-10-01 Ashland Oil Inc Tensile strengths of certain sand cores
US3429848A (en) * 1966-08-01 1969-02-25 Ashland Oil Inc Foundry binder composition comprising benzylic ether resin,polyisocyanate,and tertiary amine
US3432457A (en) * 1967-07-12 1969-03-11 Ashland Oil Inc Resinous composition comprising benzylic ether resin,polyisocyanate,and tertiary amine
GB1269202A (en) * 1968-02-14 1972-04-06 Fordath Ltd Improvements in the production of cores for use in the production of metal castings
US3925296A (en) * 1971-10-26 1975-12-09 Hooker Chemicals Plastics Corp Foundry aggregate binders
US3933727A (en) * 1972-09-26 1976-01-20 Ab Bofors Method of producing polyurethane-based cores and moulds according to the so-called cold-box procedure

Also Published As

Publication number Publication date
US4224201A (en) 1980-09-23
US4209428A (en) 1980-06-24
CA1082833A (en) 1980-07-29
MX148158A (es) 1983-03-22
GB1601938A (en) 1981-11-04

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