METHODS FOR THE SYNTHESIS OF DI(HYDROXYMETHYL)TETRAHYDROFURAN AND ITS APPLICATION IN POLYESTERS AND POLYURETHANES

• Main Authors: DE VRIES, Johannes Gerardus, KUX, Alexander, TIN, Sergey, BRANDT, Adrian, BECK, Horst, SPIEGELBERG, Brian
• Format: Patent
• Language: English; French
• Published: 27.07.2023
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DYES; HETEROCYCLIC COMPOUNDS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC CHEMISTRY; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS AS ADHESIVES

The present invention relates to the synthesis of di(hydroxymethyl)tetrahydrofuran (DHMTHF) and the preparation of trans-enriched mixtures of DHMTHF. The invention further refers to polyester polyols which are obtained by reaction of cis/trans DHMTHF mixtures with a dicarboxylic acid. The invention further relates to polyurethanes and compositions containing a polyester polyol comprising DHMTHF, in particular to such polyurethane-containing (adhesive) compositions. La présente invention concerne la synthèse de di(hydroxyméthyl)tétrahydrofurane (DHMTHF) et la préparation de mélanges trans-enrichis de DHMTHF. L'invention concerne en outre des polyols de polyester qui sont obtenus par réaction de mélanges cis/trans DHMTHF avec un acide dicarboxylique. L'invention concerne en outre des polyuréthanes et des compositions contenant un polyester polyol comprenant du DHMTHF, en particulier de telles compositions contenant du polyuréthane (adhésif).