IE43622L - Phenolic resins - Google Patents
Phenolic resinsInfo
- Publication number
- IE43622L IE43622L IE760778A IE77876A IE43622L IE 43622 L IE43622 L IE 43622L IE 760778 A IE760778 A IE 760778A IE 77876 A IE77876 A IE 77876A IE 43622 L IE43622 L IE 43622L
- Authority
- IE
- Ireland
- Prior art keywords
- phenolic resins
- generally
- april
- added
- reaction mixture
- 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
- C08G8/00—Condensation polymers of aldehydes or ketones with phenols only
- C08G8/04—Condensation polymers of aldehydes or ketones with phenols only of aldehydes
- C08G8/08—Condensation polymers of aldehydes or ketones with phenols only of aldehydes of formaldehyde, e.g. of formaldehyde formed in situ
- C08G8/10—Condensation polymers of aldehydes or ketones with phenols only of aldehydes of formaldehyde, e.g. of formaldehyde formed in situ with phenol
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Phenolic Resins Or Amino Resins (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
1489737 Phenolic resins SAINT-GOBAIN INDUSTRIES 7 April 1976 [30 April 1975] 14119/76 Heading C3R A process for the manufacture of phenolic resins intended for the production of foams comprises condensing a mixture of formaldehyde and phenol, generally in a molar ratio of from 1À0 to 1À7, in at least 2 successive stages, the HCHO generally being added in 2 stages, in the presence of an alkaline catalyst, e.g. NaOH, characterized in that after cooling of the reaction mixture at the end of the last stage of condensation, preferably to a temperature of from 30 to 35 C., a quantity of acid, e.g. HCl, sufficient to lower the pH to from 3 to 4 is added to the reaction mixture and the resinous phase is removed from the aqueous medium. The phenolic resins obtained generally have solids contents of from 70 to 74% wt. and viscosities from 1500 to 2000 cP. at 20 C.
[GB1489737A]
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7513570A FR2309574A1 (en) | 1975-04-30 | 1975-04-30 | PROCESS FOR MANUFACTURING PHENOLIC RESINS |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE43622L true IE43622L (en) | 1976-10-30 |
| IE43622B1 IE43622B1 (en) | 1981-04-22 |
Family
ID=9154672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE778/76A IE43622B1 (en) | 1975-04-30 | 1976-04-12 | Process for the manufacture of phenolic resins |
Country Status (26)
| Country | Link |
|---|---|
| JP (1) | JPS6016449B2 (en) |
| AR (1) | AR206265A1 (en) |
| AT (1) | AT351264B (en) |
| AU (1) | AU500580B2 (en) |
| BE (1) | BE841305A (en) |
| BR (1) | BR7602673A (en) |
| CA (1) | CA1079439A (en) |
| CH (1) | CH615443A5 (en) |
| DE (1) | DE2618665C2 (en) |
| DK (1) | DK138276A (en) |
| ES (1) | ES447471A1 (en) |
| FI (1) | FI62109C (en) |
| FR (1) | FR2309574A1 (en) |
| GB (1) | GB1489737A (en) |
| IE (1) | IE43622B1 (en) |
| IL (1) | IL49492A (en) |
| IN (1) | IN144644B (en) |
| IT (1) | IT1062311B (en) |
| LU (1) | LU74858A1 (en) |
| MX (1) | MX3425E (en) |
| NL (1) | NL180669C (en) |
| NO (1) | NO146641C (en) |
| PT (1) | PT65058B (en) |
| SE (1) | SE426837B (en) |
| TR (1) | TR18614A (en) |
| ZA (1) | ZA762315B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2544660B1 (en) * | 1983-04-22 | 1986-06-20 | Saint Gobain Isover | PROCESS AND DEVICE FOR THE CONTINUOUS MANUFACTURE OF COMPOSITE FOAM PANELS |
| US4668759A (en) * | 1985-07-31 | 1987-05-26 | Acme Resin Corporation | Phenolic resin binders for foundry and refractory uses |
| US4833009A (en) * | 1988-03-25 | 1989-05-23 | E. I. Du Pont De Nemours And Company | Purification of condensation products |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2147766B1 (en) * | 1971-04-15 | 1974-03-08 | Saint Gobain Pont A Mousson |
-
1975
- 1975-04-30 FR FR7513570A patent/FR2309574A1/en active Granted
-
1976
- 1976-01-01 AR AR263133A patent/AR206265A1/en active
- 1976-03-29 DK DK138276A patent/DK138276A/en not_active Application Discontinuation
- 1976-04-01 MX MX13576U patent/MX3425E/en unknown
- 1976-04-07 GB GB14119/76A patent/GB1489737A/en not_active Expired
- 1976-04-12 IE IE778/76A patent/IE43622B1/en unknown
- 1976-04-13 IN IN628/CAL/76A patent/IN144644B/en unknown
- 1976-04-20 ZA ZA762315A patent/ZA762315B/en unknown
- 1976-04-23 SE SE7604718A patent/SE426837B/en not_active IP Right Cessation
- 1976-04-26 CA CA251,000A patent/CA1079439A/en not_active Expired
- 1976-04-27 TR TR18614A patent/TR18614A/en unknown
- 1976-04-27 FI FI761169A patent/FI62109C/en not_active IP Right Cessation
- 1976-04-28 DE DE2618665A patent/DE2618665C2/en not_active Expired
- 1976-04-29 ES ES447471A patent/ES447471A1/en not_active Expired
- 1976-04-29 IL IL49492A patent/IL49492A/en unknown
- 1976-04-29 LU LU74858A patent/LU74858A1/xx unknown
- 1976-04-29 PT PT65058A patent/PT65058B/en unknown
- 1976-04-29 BR BR2673/76A patent/BR7602673A/en unknown
- 1976-04-29 CH CH540476A patent/CH615443A5/en not_active IP Right Cessation
- 1976-04-29 BE BE166596A patent/BE841305A/en not_active IP Right Cessation
- 1976-04-29 AU AU13463/76A patent/AU500580B2/en not_active Expired
- 1976-04-29 IT IT68047/76A patent/IT1062311B/en active
- 1976-04-29 AT AT316576A patent/AT351264B/en not_active IP Right Cessation
- 1976-04-29 NL NLAANVRAGE7604582,A patent/NL180669C/en not_active IP Right Cessation
- 1976-04-30 NO NO761500A patent/NO146641C/en unknown
- 1976-04-30 JP JP51048689A patent/JPS6016449B2/en not_active Expired
Also Published As
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