CAS: 14284-89-0; Manganese(Iii) Acetylacetonate

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专利信息

专利号:US-2024368099-A1
优先权日:2022-01-18
标 题:Methods for the synthesis of di(hydroxymethyl)tetrahydrofuran and its application in polyesters and polyurethanes
发明人：SPIEGELBERG BRIAN; BRANDT ADRIAN; BECK HORST; KUX ALEXANDER; TIN SERGEY; DE VRIES JOHANNES GERARDUS
权利人:HENKEL AG & CO KGAA
摘要: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.

专利号:EP-3364957-B1
优先权日:2015-10-23
标 题:Improved synthesis of honokiol

专利号:EP-3364957-A1
优先权日:2015-10-23
标 题 :Improved synthesis of honokiol

专利号:CN-117794921-A
优先权日:2021-06-04
标 题:Methods for the synthesis of substituted sodium tetrahydrofuran channel modulators

专利号:US-9156966-B2
优先权日:2013-12-31
标题:Addition of non-reactive UV absorbers during polyester synthesis
发明人：SAKELLARIDES STEFANOS L; SHARPS JR GORDON VINCENT
权利人:TORAY PLASTICS AMERICA INC
摘要:A method of incorporating a UV light absorber into a polyester during the esterification or the condensation process by selecting the UV absorber from a class that is substantially not reactive with the polyester raw materials, is stable in the conditions of polycondensation or polymerization, and does not suffer loss through volatilization, resulting in an incorporation yield of 70% or higher, preferably 90% or higher. One embodiment comprises selecting the appropriate compound from the class of triazines and incorporating is as a solid powder in the beginning of the esterification. Another embodiment comprises selecting the appropriate compound from the class of triazines and incorporating it in the form of slurry during the time interval between esterification and condensation. Other embodiments include novel resins and films made by the UV absorber containing polyester resin made by the methods disclosed herein.

专利号:JP-2025504449-A
优先权日:2022-01-18
标题 :Synthesis of di(hydroxymethyl)tetrahydrofuran and its application in polyesters and polyurethanes.