BR7706747A - Aperfeicoamento em composicao para fundicao - Google Patents
Aperfeicoamento em composicao para fundicaoInfo
- 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
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)
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)
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)
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 |
-
1977
- 1977-07-21 GB GB30608/77A patent/GB1601938A/en not_active Expired
- 1977-09-21 CA CA287,225A patent/CA1082833A/en not_active Expired
- 1977-09-26 US US05/836,924 patent/US4209428A/en not_active Expired - Lifetime
- 1977-10-10 BR BR7706747A patent/BR7706747A/pt unknown
-
1978
- 1978-01-31 MX MX172251A patent/MX148158A/es unknown
- 1978-12-19 US US05/971,128 patent/US4224201A/en not_active Expired - Lifetime
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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