GB1225615A - - Google Patents

Info

Publication number
GB1225615A
GB1225615A GB1225615DA GB1225615A GB 1225615 A GB1225615 A GB 1225615A GB 1225615D A GB1225615D A GB 1225615DA GB 1225615 A GB1225615 A GB 1225615A
Authority
GB
United Kingdom
Prior art keywords
acetophenone
reduced pressure
formaldehyde
product
novolaks
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
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 filed Critical
Publication of GB1225615A publication Critical patent/GB1225615A/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
    • C08G8/24—Condensation polymers of aldehydes or ketones with phenols only of aldehydes of formaldehyde, e.g. of formaldehyde formed in situ with mixtures of two or more phenols which are not covered by only one of the groups C08G8/10 - C08G8/20

Abstract

1,225,615. Novolaks. IMPERIAL CHEMICAL INDUSTRIES Ltd. 9 Sept., 1968 [5 Oct., 1967], No. 45543/67. Heading C3R. Novolaks are produced from formaldehyde and a molar excess of a phenolic component comprising an acetophenone-free p-cumylphenol-containing fraction obtained from the tarry waste product of the manufacture of phenol by decomposition of cumene hydroperoxide. The tarry waste product may contain tar, inorganic materials and a volatile fraction comprising pcumylphenol (12-30%), 1-phenyl isopropanol (10-20%), trimethylphenylindene (2-10%) diphenylmethylpentenes - 1 and 2 (10-30%), and acetophenone. The volatile fraction may be isolated by flash distillation under reduced pressure and then the acetophenone removed by a futher distillation at reduced pressure. 25- 35% of this product may be mixed with phenol to form the phenolic material. The formaldehyde may be in aqueous solution. The reactants may be heated at a temperature below 100‹ C. in the presence of 0À5-2% oxalic acid as catalyst. When reaction is complete, water may be removed under reduced pressure and the temperature of the still allowed to rise above 100‹ C. On cooling the product sets and may be broken up in a two-roll mill, mixed with additional formaldehyde and cured hot or under alkaline conditions.
GB1225615D 1967-10-05 1967-10-05 Expired GB1225615A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4554367 1967-10-05

Publications (1)

Publication Number Publication Date
GB1225615A true GB1225615A (en) 1971-03-17

Family

ID=10437604

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1225615D Expired GB1225615A (en) 1967-10-05 1967-10-05

Country Status (3)

Country Link
DE (1) DE1801327B2 (en)
FR (1) FR1585334A (en)
GB (1) GB1225615A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55155013A (en) * 1979-05-21 1980-12-03 Sumitomo Bakelite Co Ltd Preparation of quick-curing phenol resin
DE3034948A1 (en) * 1980-09-17 1982-05-06 Hoechst Ag, 6000 Frankfurt METHOD FOR PRODUCING SYNTHETIC RESINS BASED ON RESORCIN COMPOUNDS

Also Published As

Publication number Publication date
DE1801327A1 (en) 1969-05-08
DE1801327B2 (en) 1971-07-22
FR1585334A (en) 1970-01-16

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees