GB518858A - Improvements in or relating to the production of hardened artificial resin products - Google Patents

Improvements in or relating to the production of hardened artificial resin products

Info

Publication number
GB518858A
GB518858A GB30857/38A GB3085738A GB518858A GB 518858 A GB518858 A GB 518858A GB 30857/38 A GB30857/38 A GB 30857/38A GB 3085738 A GB3085738 A GB 3085738A GB 518858 A GB518858 A GB 518858A
Authority
GB
United Kingdom
Prior art keywords
formaldehyde
solution
products
added
urea
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
GB30857/38A
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.)
ALBERT PRODUCTS Ltd
Original Assignee
ALBERT PRODUCTS Ltd
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
Priority claimed from DEA84694D external-priority patent/DE767062C/en
Application filed by ALBERT PRODUCTS Ltd filed Critical ALBERT PRODUCTS Ltd
Publication of GB518858A publication Critical patent/GB518858A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
    • C08L61/34—Condensation polymers of aldehydes or ketones with monomers covered by at least two of the groups C08L61/04, C08L61/18 and C08L61/20
    • 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
    • C08G14/00—Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00
    • C08G14/02—Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00 of aldehydes
    • C08G14/04—Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00 of aldehydes with phenols
    • C08G14/06—Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00 of aldehydes with phenols and monomers containing hydrogen attached to nitrogen
    • 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
    • C08G8/28—Chemically modified polycondensates
    • 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
    • C08G8/28—Chemically modified polycondensates
    • C08G8/32—Chemically modified polycondensates by organic acids or derivatives thereof, e.g. fatty oils

Abstract

518,858. Artificial resins. ALBERT PRODUCTS, Ltd. Oct. 25, 1938, No. 30857. Convention date, Oct. 30, 1937. [Class 2 (iii)] Artificial products hardenable at normal temperature are obtained by mixing at normal or moderate temperatures water-insoluble ureaformaldehyde and/or thioureaformaldehyde condensation products with phenol resols and hardening catalysts ; condensation products of formaldehyde with condensable amino compounds, e.g., dicyandiamide, or aniline, may be added. The two resins may be mixed, neutralized and heated with stirring, or one resin may be added to a solution, e.g., in alcohol, of the other, or solutions of both resins may be mixed and heated. Alkaline or acid catalysts may be added, preferably acid, e.g., hydrochloric, sulphuric or phosphoric acids or hydroxylamine-chlorhydrate. The products are suitable for coatings, adhesives, cement, packing and impregnating materials and for castings and plastic masses. In examples, (1) a waterinsoluble product obtained by weakly alkaline condensation of urea and thiourea with formaldehyde at 30-40‹C., followed by further heating with urea nitrate in alcohol, is mixed with a phenol resol, produced by condensing phenol and formaldehyde in the presence of caustic' soda, together with glycerine as softening agent and an alcoholic solution of hydrochloric acid to produce a casting resin ; (2) a resol from dioxydiphenylmethane and formaldehyde is added to an alcoholic solution of a ureaformaldehyde condensation product and, after heating to 60-70‹C. for a short time a butanol solution of sulphuric acid, together with ethyl lactate giving a solution suitable as an adhesive, e.g., for completely hardened phenolic or carbamide resins ; (3) a butanol solution of a cresol-formaldehyde resin is mixed with a spirit-benzol alcohol solution of a urea-formaldehyde condensation product triturated with pigments or dyestuffs and alcoholic hydrochloric acid added forming enamels. The Specification as open to inspection under Sect. 91 refers to urea-formaldehyde and/or thiourea-formaldehyde condensation products in general, and includes a further example in which dimethylolurea is heated with a phenolformaldehyde resin and treated with phosphoric acid. This subject matter does not appear in the Specification as accepted.
GB30857/38A 1937-10-30 1938-10-25 Improvements in or relating to the production of hardened artificial resin products Expired GB518858A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE845339X 1937-10-30
DE518858X 1937-10-30
DEA84694D DE767062C (en) 1937-10-30 1937-10-31 Process for the manufacture of hardened synthetic resin products

Publications (1)

Publication Number Publication Date
GB518858A true GB518858A (en) 1940-03-08

Family

ID=31981801

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30857/38A Expired GB518858A (en) 1937-10-30 1938-10-25 Improvements in or relating to the production of hardened artificial resin products

Country Status (2)

Country Link
FR (1) FR845339A (en)
GB (1) GB518858A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2483854A (en) * 1946-02-27 1949-10-04 Snyder Chemical Corp Production of modified carbamide resins
US3029212A (en) * 1957-09-09 1962-04-10 Nopco Chem Co Synthetic tanning agent and process for preparing same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB901663A (en) * 1959-11-12 1962-07-25 Formica Int Flame resistant materials

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2483854A (en) * 1946-02-27 1949-10-04 Snyder Chemical Corp Production of modified carbamide resins
US3029212A (en) * 1957-09-09 1962-04-10 Nopco Chem Co Synthetic tanning agent and process for preparing same

Also Published As

Publication number Publication date
FR845339A (en) 1939-08-18

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