GB753162A - Improvements in or relating to phenol-aldehyde resins and method of producing the same - Google Patents

Improvements in or relating to phenol-aldehyde resins and method of producing the same

Info

Publication number
GB753162A
GB753162A GB935754A GB935754A GB753162A GB 753162 A GB753162 A GB 753162A GB 935754 A GB935754 A GB 935754A GB 935754 A GB935754 A GB 935754A GB 753162 A GB753162 A GB 753162A
Authority
GB
United Kingdom
Prior art keywords
per cent
phenol
resin
parts
formaldehyde
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
GB935754A
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.)
DONALD BEAUVOIS ALEXANDER
EDGAR RUDOLF BOURKE
ERNEST WARREN SCHNEIDER
HENRY THOMAS CHAMBERLAIN
LEE JOSEPH GARY
WALTER AHERN WADE
Original Assignee
DONALD BEAUVOIS ALEXANDER
EDGAR RUDOLF BOURKE
ERNEST WARREN SCHNEIDER
HENRY THOMAS CHAMBERLAIN
LEE JOSEPH GARY
WALTER AHERN WADE
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 DONALD BEAUVOIS ALEXANDER, EDGAR RUDOLF BOURKE, ERNEST WARREN SCHNEIDER, HENRY THOMAS CHAMBERLAIN, LEE JOSEPH GARY, WALTER AHERN WADE filed Critical DONALD BEAUVOIS ALEXANDER
Priority to GB935754A priority Critical patent/GB753162A/en
Publication of GB753162A publication Critical patent/GB753162A/en
Expired legal-status Critical Current

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)

Abstract

A liquid composition comprising a novolak and sufficient phenol to maintain the resin liquid is obtained by reacting phenol and formaldehyde in molar proportions of 1 to 0.5-0.725 in the presence of 0.2-0.8 per cent hydrochloric acid as catalyst at controlled temperatures of 35 DEG -60 DEG -85 DEG C. for 4-5 hours, separating resinous and aqueous layers, and dehydrating the resinous layer under vacuum until a product having a resin solids content of 70-80 per cent is obtained; 1000 parts heated liquid phenol and 600 parts 37 per cent formaldehyde were mixed in a jacketed kettle with a stirrer, cold water being passed through the jacket until the reactants were cooled to 35 DEG C., 14 parts of 20 DEG Be. HCl were then added and the temperature allowed to rise to 50 DEG C. at the rate of half a degree per minute. After an hour the temperature was allowed to rise to 60 DEG C. at which it was maintained for two and one half hours. The resin mixture was brought to a pH of 6-7 by addition of 50 per cent NaOH and triethanolamine or other emulsion breaking agent added. An oily layer separated out which after removal of the aqueous layer was washed to remove salts and then dehydrated under 28-30 inches vacuum at 40-50 DEG C. to a solids content of 78 per cent leaving dissolved therein about 5 per cent water. The resin obtained had a 25 DEG C. viscosity of 57,000 centipoises and may be used for coating particles of sand for use in making sand cores.
GB935754A 1954-03-30 1954-03-30 Improvements in or relating to phenol-aldehyde resins and method of producing the same Expired GB753162A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB935754A GB753162A (en) 1954-03-30 1954-03-30 Improvements in or relating to phenol-aldehyde resins and method of producing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB935754A GB753162A (en) 1954-03-30 1954-03-30 Improvements in or relating to phenol-aldehyde resins and method of producing the same

Publications (1)

Publication Number Publication Date
GB753162A true GB753162A (en) 1956-07-18

Family

ID=9870381

Family Applications (1)

Application Number Title Priority Date Filing Date
GB935754A Expired GB753162A (en) 1954-03-30 1954-03-30 Improvements in or relating to phenol-aldehyde resins and method of producing the same

Country Status (1)

Country Link
GB (1) GB753162A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112358586A (en) * 2020-11-10 2021-02-12 中钢集团马鞍山矿山研究总院股份有限公司 Low-cost preparation method of carbon aerogel precursor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112358586A (en) * 2020-11-10 2021-02-12 中钢集团马鞍山矿山研究总院股份有限公司 Low-cost preparation method of carbon aerogel precursor
CN112358586B (en) * 2020-11-10 2023-09-15 中钢集团马鞍山矿山研究总院股份有限公司 Low-cost preparation method of carbon aerogel precursor

Similar Documents

Publication Publication Date Title
US1801052A (en) Resinous condensation product and process of making same
US2566851A (en) Phenolic intercondensation resins and methods of making same
GB753162A (en) Improvements in or relating to phenol-aldehyde resins and method of producing the same
US2700047A (en) Aqueous hydrolysis of flavanone glycosides
US2228159A (en) Manufacture of cation-exchanging bodies
US1503984A (en) Manufacture of 2.3-hydroxynaphthoic acid
US2302403A (en) Manufacture of resins from naphthalene derivatives
US2392686A (en) Resinous compositions
US2486925A (en) Production of phenolic ethers of
US4094825A (en) Process for the production of phenol silicoformate compounds and their condensation products
US2200762A (en) Production of resins from aldehydes and aromatic hydrocarbons
US1216728A (en) Method of producing insoluble condensation products and product thereof.
US3538035A (en) Stable urea-formaldehyde solutions
US2227219A (en) Resinous composition and method of making the same
US2663713A (en) Production of hydantoin and glycine
US1482929A (en) Ketonic resin and process of making same
US1584144A (en) Furfural-acetone resins and method of producing the same
EP0001321B1 (en) Alkanolamine salts of phenolic resins, their manufacture and their use as bonding agents
US2395676A (en) Condensation products and processes for producing the same
US1418718A (en) Process of making a phenolic condensation product
US2811508A (en) Condensation of phenol and aldehyde with trichloroacetic acid and production of phenolaldehyde resin free of acid catalyst
SU62995A1 (en) The method of obtaining synthetic tanning agents
US2875180A (en) Synthetic resins derived from hydroxymethylfurfural and ketones
Redman et al. Synthetic Resins
US2151946A (en) Cast phenolic resins