IE43622L - Phenolic resins - Google Patents

Phenolic resins

Info

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
Application number
IE760778A
Other versions
IE43622B1 (en
Original Assignee
Saint Gobain
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 Saint Gobain filed Critical Saint Gobain
Publication of IE43622L publication Critical patent/IE43622L/en
Publication of IE43622B1 publication Critical patent/IE43622B1/en

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]
IE778/76A 1975-04-30 1976-04-12 Process for the manufacture of phenolic resins IE43622B1 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2147766B1 (en) * 1971-04-15 1974-03-08 Saint Gobain Pont A Mousson

Also Published As

Publication number Publication date
ES447471A1 (en) 1977-07-01
IL49492A0 (en) 1976-06-30
AR206265A1 (en) 1976-07-07
NO146641C (en) 1982-11-10
JPS51131592A (en) 1976-11-16
BE841305A (en) 1976-10-29
BR7602673A (en) 1976-11-23
ATA316576A (en) 1978-12-15
CA1079439A (en) 1980-06-10
CH615443A5 (en) 1980-01-31
NL7604582A (en) 1976-11-02
AU1346376A (en) 1977-11-03
LU74858A1 (en) 1977-02-08
AU500580B2 (en) 1979-05-24
DK138276A (en) 1976-10-31
JPS6016449B2 (en) 1985-04-25
MX3425E (en) 1980-11-19
FI62109B (en) 1982-07-30
ZA762315B (en) 1977-04-27
IT1062311B (en) 1984-10-10
PT65058A (en) 1976-05-01
SE7604718L (en) 1976-10-31
FR2309574B1 (en) 1977-12-02
NO146641B (en) 1982-08-02
AT351264B (en) 1979-07-10
TR18614A (en) 1977-06-22
FI62109C (en) 1982-11-10
IN144644B (en) 1978-05-27
IE43622B1 (en) 1981-04-22
NO761500L (en) 1976-11-02
IL49492A (en) 1979-12-30
FI761169A (en) 1976-10-31
DE2618665A1 (en) 1976-11-11
NL180669C (en) 1987-04-01
PT65058B (en) 1977-09-13
GB1489737A (en) 1977-10-26
DE2618665C2 (en) 1985-09-19
SE426837B (en) 1983-02-14
FR2309574A1 (en) 1976-11-26
NL180669B (en) 1986-11-03

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