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
GB1628/21A
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.)
ELEKTROCHEMISCHE WERKE GmbH
Original Assignee
ELEKTROCHEMISCHE WERKE GmbH
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Filing date
Publication date
Application filed by ELEKTROCHEMISCHE WERKE GmbHfiledCriticalELEKTROCHEMISCHE WERKE GmbH
Publication of GB171956ApublicationCriticalpatent/GB171956A/en
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
C08G61/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
C08G61/02—Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes
Abstract
A resinous condensation product is obtained by heating naphthalene with glycollic acid or glycollide and an acid reagent such as phosphorus pentoxide in an autoclave at 130-170 DEG C. The product has properties similar to those of shellac, and on sulphonation produces a synthetic tanning-agent. Specification 16245/07 is referred to.
GB1628/21A1919-07-041921-01-10Method for the production of a condensation product from naphthalene and glycollic acid
ExpiredGB171956A
(en)