The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 07, 2023
Filed:
Jan. 10, 2020
Henkel Ag & Co. Kgaa, Duesseldorf, DE;
Adrian Brandt, Essen, DE;
Horst Beck, Neuss, DE;
Alexander Kux, Monheim, DE;
Kerstin Schroeder, Grevenbroich/Wevelinghoven, DE;
Henkel AG & Co. KGaA, Duesseldorf, DE;
Abstract
The present invention relates to a semi-crystalline mixture of polyester polyols which recrystallises upon melting and which can be obtained by polycondensing a reaction mixture comprising one or more dicarboxylic acids selected from saturated aliphatic dicarboxylic acids having an even number of at least 8 methylene groups, and one or more diols selected from aliphatic diols which have at least one ether function. The invention also relates to a polymeric material which is obtained from the chemical modification of the mixture of polyester polyols with organic compounds which contain at least one isocyonate group and/or epoxide group. The mixtures and materials according to the invention are characterised by relatively low melting enthalpies, while the melting temperature can be set in a range of −30 to 60° C., meaning that it is possible to obtain easily fusible formulations containing the mixtures and materials according to the invention. The mixtures and materials according to the invention also provide such formulations with a high elasticity and breaking resistance. The present invention therefore includes the use of the polyester polyols and polymeric materials according to the invention as deforming, fusing, and extrusion means in thermoplastic materials, and the use thereof for producing adhesives and sealants, in particular hot-melt adhesives and reactive adhesives.