POLYESTERS AND A PROCESS FOR PREPARING THESE POLYESTERS

    公开(公告)号:EP4455182A1

    公开(公告)日:2024-10-30

    申请号:EP23169389.6

    申请日:2023-04-24

    摘要: The present invention relates to a polymer comprising units derived from a carboxylic acid comprising at least two carboxylic groups or its anhydride and from an alcohol comprising at least two OH-groups, wherein the alcohol comprising at least two OH-groups is a bi-cyclo-aliphatic diol of formula (IX)

    with R 1 = ethyl, -CHz-CHz-CHzOH, or -CH(-CH 3 )-CH 2 OH, and R 2 = H or -CHzOH, with the proviso that R 2 is not H when R 1 = ethyl,
    to a process for preparing a polymer by reacting at least one carboxylic acid comprising at least two carboxylic groups or its anhydride or ester and at least one alcohol comprising at least two OH-groups, wherein the alcohol comprising at least two OH-groups used is a bi-cyclo-aliphatic diol of formula (IX), and to the use of a polymer according to the invention or obtained by a process according to the invention as or for the production of lacquers, coatings or adhesives, preferably tube or can coatings, metal decorating enamels, heat sealing lacquers, hot laminating adhesives, or primers.

    2-(2,4,5-TRIMETHYLCYCLOHEX-2-EN-1-YL)ACETALDEHYDE AND DERIVATIVES AND THEIR USE AS AROMA CHEMICALS

    公开(公告)号:EP3763352A1

    公开(公告)日:2021-01-13

    申请号:EP19185187.2

    申请日:2019-07-09

    申请人: BASF SE

    摘要: The present invention relates to 2-(2,4,5-trimethylcyclohex-2-en-1-yl)acetaldehyde and derivatives thereof, to a process for preparing said compounds, to the use of 2-(2,4,5-trimethylcyclohex-2-en-1-yl)acetaldehyde or a specific derivative thereof or of mixtures of said compounds or of a stereoisomer thereof or of a mixture of two or more stereoisomers thereof as aroma chemicals; to the use of 2-(2,4,5-trimethylcyclohex-2-en-1-yl)acetaldehyde or a specific derivative thereof for modifying the scent character of a fragranced composition; to compositions containing 2-(2,4,5-trimethylcyclohex-2-en-1-yl)acetaldehyde or a specific derivative thereof or a mixture of said compounds or a stereoisomer thereof or a mixture of two or more stereoisomers thereof; and to a method of preparing a fragranced composition or for modifying the scent character of a fragranced composition, comprising incorporating 2-(2,4,5-trimethylcyclohex-2-en-1-yl)-acetaldehyde or a specific derivative thereof or a mixture of said compounds or a stereoisomer thereof or a mixture of two or more stereoisomers thereof into said composition.