GB474361A - Improvements in the use and manufacture of synthetic resins - Google Patents

Improvements in the use and manufacture of synthetic resins

Info

Publication number
GB474361A
GB474361A GB5514/36A GB551436A GB474361A GB 474361 A GB474361 A GB 474361A GB 5514/36 A GB5514/36 A GB 5514/36A GB 551436 A GB551436 A GB 551436A GB 474361 A GB474361 A GB 474361A
Authority
GB
United Kingdom
Prior art keywords
sulphited
gambier
tannin
formaldehyde
sodium sulphite
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
GB5514/36A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB5514/36A priority Critical patent/GB474361A/en
Publication of GB474361A publication Critical patent/GB474361A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J39/00—Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
    • B01J39/08—Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
    • B01J39/16—Organic material
    • B01J39/18—Macromolecular compounds
    • B01J39/19—Macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Compounds Of Unknown Constitution (AREA)

Abstract

Water-insoluble resins are prepared from polyhydric phenols, especially tannins, alone or in association with monohydric phenols, with formaldehyde or an equivalent methylene body under such conditions that the product will be sulphited to a degree such that the NaCl value (a measure of the cationic activity of the resin) is greater than 10. The term sulphited indicates treatment with sulphur dioxide, sulphites or their obvious p chemical equivalent. The resins may be prepared in the presence of the sulphiting agent, the A-stage condensation products may be sulphited, or the resins may be prepared from a sulphited phenol. The products may be used in the removal of certain cations from liquids. Suitable phenolic raw materials include sulphited quebracho, mimosa, black wattle, hemlock, gambier, uranday, mangrove and Indian cutch tannins, catechol, resorcinol, quinol and gambier catechin. In an example, a tannin or polyhydric phenol (catechin, liquid hemlock, liquid mimosa, mangrove, quebracho, or resorcinol) is heated with aqueous sodium sulphite, metabisulphite, or bisulphite, and the product condensed with aqueous formaldehyde. Samples have been furnished under Sect. 2 (5) of products obtained by condensing (1) resorcinol, sodium sulphite and formalin, (2) extra sulphited commercial quebracho and aqueous formaldehyde, (3) gambier tannin, sodium sulphite and formalin in presence of caustic soda, (4) gambier tannin, aqueous formaldehyde, sodium sulphite and formaldehyde, (5) gambier tannin, sodium sulphite, and furfural, (6) black wattle (mimosa) tannin, sulphurous acid and formaldehyde with and without caustic soda. Specifications 450,308 and 450,309 are referred to.
GB5514/36A 1936-02-24 1936-02-24 Improvements in the use and manufacture of synthetic resins Expired GB474361A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5514/36A GB474361A (en) 1936-02-24 1936-02-24 Improvements in the use and manufacture of synthetic resins

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5514/36A GB474361A (en) 1936-02-24 1936-02-24 Improvements in the use and manufacture of synthetic resins

Publications (1)

Publication Number Publication Date
GB474361A true GB474361A (en) 1937-10-25

Family

ID=9797637

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5514/36A Expired GB474361A (en) 1936-02-24 1936-02-24 Improvements in the use and manufacture of synthetic resins

Country Status (1)

Country Link
GB (1) GB474361A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE850892C (en) * 1943-05-19 1952-09-29 Hoechst Ag Process for the production of solid water-soluble condensation products, in particular tanning agents
US2816833A (en) * 1954-06-22 1957-12-17 Synvar Corp Wet strength paper
DE1032921B (en) * 1955-01-17 1958-06-26 Frederik Willem Rolf Von Den B Process for the production of medicinal resins
US2926146A (en) * 1956-05-28 1960-02-23 Armour Res Found Ion exchange material from bark and formaldehyde
US3065039A (en) * 1957-02-02 1962-11-20 Bayer Ag Sulfo-methylated phenol-formaldehyde tanning agents
USRE30650E (en) * 1979-12-14 1981-06-16 Hoechst Aktiengesellschaft Dispersing and stabilizing agents for dyestuffs

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE850892C (en) * 1943-05-19 1952-09-29 Hoechst Ag Process for the production of solid water-soluble condensation products, in particular tanning agents
US2816833A (en) * 1954-06-22 1957-12-17 Synvar Corp Wet strength paper
DE1032921B (en) * 1955-01-17 1958-06-26 Frederik Willem Rolf Von Den B Process for the production of medicinal resins
US2926146A (en) * 1956-05-28 1960-02-23 Armour Res Found Ion exchange material from bark and formaldehyde
US3065039A (en) * 1957-02-02 1962-11-20 Bayer Ag Sulfo-methylated phenol-formaldehyde tanning agents
USRE30650E (en) * 1979-12-14 1981-06-16 Hoechst Aktiengesellschaft Dispersing and stabilizing agents for dyestuffs

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