GB282635A - Improvements in the production of artificial masses - Google Patents

Improvements in the production of artificial masses

Info

Publication number
GB282635A
GB282635A GB28848/27A GB2884827A GB282635A GB 282635 A GB282635 A GB 282635A GB 28848/27 A GB28848/27 A GB 28848/27A GB 2884827 A GB2884827 A GB 2884827A GB 282635 A GB282635 A GB 282635A
Authority
GB
United Kingdom
Prior art keywords
parts
thiourea
lignin
dried
mixture
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
GB28848/27A
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
Publication of GB282635A publication Critical patent/GB282635A/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
    • 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
    • C08G14/08—Ureas; Thioureas
    • 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
    • C08G12/00—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
    • C08G12/02—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes
    • C08G12/04—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds
    • C08G12/10—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds with acyclic compounds having the moiety X=C(—N<)2 in which X is O, S or —N
    • C08G12/12—Ureas; Thioureas

Abstract

282,635. I. G. Farbenindustrie Akt.- Ges. Dec. 23, 1926, [Convention date]. Compositions containing phenol aldehydes, organic nitrogen derivatives.-Methylol compounds, especially of ureas, are mixed with fillers such as wood, lignin &c., which have been previously impregnated with phenol, urea, thiourea, their derivatives, or condensation products with aldehyde and dried, and the mixture is hardened. Catalysts or buffer mixtures to maintain the hydrogen ion concentration constant, may be employed Aldehydes or substances such as trihydroxy methylene may also be added. The composition may contain casein, horn, yeast or the like. I:a an example, 120 parts of lignin are impregnated with a solution of 30 parts of thiourea in methanol, dried, and mixed with 160 parts of dimethylol urea. The mixture is subjected to a pressure of 300 atmospheres for 2 hours at 100‹- 105‹ C. The product has good electrical insulate ing properties.
GB28848/27A 1926-12-23 1927-10-29 Improvements in the production of artificial masses Expired GB282635A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE282635X 1926-12-23

Publications (1)

Publication Number Publication Date
GB282635A true GB282635A (en) 1928-12-06

Family

ID=6041903

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28848/27A Expired GB282635A (en) 1926-12-23 1927-10-29 Improvements in the production of artificial masses

Country Status (1)

Country Link
GB (1) GB282635A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2501665A (en) * 1946-05-24 1950-03-28 Masonite Corp Lignin resins and process of making same
US2562898A (en) * 1946-05-24 1951-08-07 Masonite Corp Lignin resins and process of making same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2501665A (en) * 1946-05-24 1950-03-28 Masonite Corp Lignin resins and process of making same
US2562898A (en) * 1946-05-24 1951-08-07 Masonite Corp Lignin resins and process of making same

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