GB496125A - Improvements in the manufacture and production of adhesives - Google Patents

Improvements in the manufacture and production of adhesives

Info

Publication number
GB496125A
GB496125A GB14075/37A GB1407537A GB496125A GB 496125 A GB496125 A GB 496125A GB 14075/37 A GB14075/37 A GB 14075/37A GB 1407537 A GB1407537 A GB 1407537A GB 496125 A GB496125 A GB 496125A
Authority
GB
United Kingdom
Prior art keywords
product
urea
impregnated
water
products
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
GB14075/37A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to GB14075/37A priority Critical patent/GB496125A/en
Publication of GB496125A publication Critical patent/GB496125A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J161/00—Adhesives based on condensation polymers of aldehydes or ketones; Adhesives based on derivatives of such polymers
    • C09J161/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
    • C09J161/22—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds
    • C09J161/24—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds with urea or thiourea
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
    • C08L2666/02—Organic macromolecular compounds, natural resins, waxes or and bituminous materials
    • C08L2666/26—Natural polymers, natural resins or derivatives thereof according to C08L1/00 - C08L5/00, C08L89/00, C08L93/00, C08L97/00 or C08L99/00

Abstract

An adhesive, capable of hardening under the action of heat, is produced by adding to the solution of a water-soluble urea-formaldehyde condensation product wood meal or water-insoluble degradation products thereof impregnated with from about 5 to 20 per cent of a substance capable of reacting with the urea-formaldehyde condensation product, if necessary under the action of condensing agents. Such substance is one insoluble in water or becoming so by mixing with the solution of the urea-formaldehyde condensation product and containing -NH- or-NH2 groups or phenolic radicles, e.g. polymerization products of unsaturated acid amides or imides, condensation products of urea or thiourea with aldehydes or alcohols, albumen, or degradation products thereof, albuminous substances, reaction products of polyamines with mono- or polybasic acids, and phenol-aldehyde condensation products. In a modification, the treated wood meal is mixed with a dry, water-soluble ureaformaldehyde condensation product and subsequently stirred with water before use. In examples, an aqueous solution of a ureaformaldehyde product is mixed with (1) wood meal, or (2) beech wood meal and rye flour impregnated with a urea-formaldehyde product, (3) a cellulose degradation product impregnated with polyacrylic acid amide, (4) lignin impregnated with a reaction product of stearic acid with diethylene triamine, and (5) wood meal impregnated with a phenol-formaldehyde condensation product. Ammonium chloride is added in examples 1-3. Specification 370,972, [Group VIII], is referred to.
GB14075/37A 1937-05-20 1937-05-20 Improvements in the manufacture and production of adhesives Expired GB496125A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB14075/37A GB496125A (en) 1937-05-20 1937-05-20 Improvements in the manufacture and production of adhesives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB14075/37A GB496125A (en) 1937-05-20 1937-05-20 Improvements in the manufacture and production of adhesives

Publications (1)

Publication Number Publication Date
GB496125A true GB496125A (en) 1938-11-21

Family

ID=10034518

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14075/37A Expired GB496125A (en) 1937-05-20 1937-05-20 Improvements in the manufacture and production of adhesives

Country Status (1)

Country Link
GB (1) GB496125A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2446304A (en) * 1944-02-23 1948-08-03 Roman Charles Composite wood product

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2446304A (en) * 1944-02-23 1948-08-03 Roman Charles Composite wood product

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