公开(公告)号：US20210363305A1

公开(公告)日：2021-11-25

申请号：US17303020

申请日：2021-05-18

申请人： NOURYON CHEMICALS INTERNATIONAL B.V.

发明人： Christian PROBST ,  Olaf KLOBES ,  Volker BURKHARDT

IPC分类号： C08G75/14 ,  C08L63/00

摘要： An aliphatic epoxy-terminated polysulfide polymer has the formula R″—CHOH—CH2-S—R—(Sy-R)t-S—CH2-CHOH—R″ and is formed by a process, where each R is independently chosen from branched alkanediyl or branched arenediyl groups and groups with the structure —(CH2)a-O—(CH2)b-O—(CH2)c- and about 0 to about 20% of the number of R-groups are branched alkanediyl or branched arenediyl groups and about 80 to about 100% of the number of R-groups have the structure —(CH2)a-O—(CH2)b-O—(CH2)c-, where t is from about 1 to about 60, y is an average value of from about 1.0 to about 2.5, b is an integer value of from about 1 to about 8, and a and c are independently integers from about 1 to about 10, and where each R″ is independently a particular radical where, m, n, o, p, q and r independently have a value of from about 1 to about 10.

公开(公告)号：US20210363303A1

公开(公告)日：2021-11-25

申请号：US16886868

申请日：2018-12-04

申请人： NOURYON CHEMICALS INTERNATIONAL B.V.

发明人： Christian PROBST ,  Volker BURKHARDT ,  Olaf KLOBES

IPC分类号： C08G75/04 ,  C08K5/17 ,  C08K5/1515

摘要： Process for the production of a liquid mercapto-terminated polythioethersulfide comprising the step of reacting, at a temperature in the range 0-100° C. and in the presence of a catalyst: at least one compound selected from the group consisting of (i) dimercapto-dioxa-alkanes (DMDAs) and (ii) glycol di(mercapto carboxylic acid ester)s (GDMEs), at least one dimercapto-dialkyl sulfide (DMDS) at least one di-epoxide, and optionally at least one branching agent selected from compounds having at least three terminal groups selected from epoxy and mercapto groups, wherein the molar ratio (DMDA+GDME)/DMDS is in the range 1.1-4.0.

公开(公告)号：US20220184630A1

公开(公告)日：2022-06-16

申请号：US17643477

申请日：2021-12-09

申请人： NOURYON CHEMICALS INTERNATIONAL B.V.

发明人： Matthias FOLCHNANDT ,  Olaf KLOBES ,  Ulises PICARDI ,  Rodrigo M. GIMÉNEZ ,  Leandro PRATS

IPC分类号： B03B1/04 ,  B03D1/002

摘要： The disclosure is directed to a sulfidizing agent obtainable by mixing MySx and ZSH in a weight ratio of from about 90:10 to about 10:90, wherein M is chosen from Li+, Na+, K+, Rb+, Cs+, NH4+, Mg2+ and Ca2+, y is about 1 or about 2, x is from about 1.1 to about 5, and Z is independently chosen from Li+, Na+, K+, Rb+, Cs+ and NH4+, and a process for using the sulfidizing agent in the recovery of one or more metal ores and/or polymetallic minerals from gangue.

公开(公告)号：US20230303774A1

公开(公告)日：2023-09-28

申请号：US18181746

申请日：2023-03-10

申请人： NOURYON CHEMICALS INTERNATIONAL B.V.

发明人： Daniela LUNGU ,  Manfred MENZEL ,  Olaf KLOBES

IPC分类号： C08G75/04 ,  C08K5/06 ,  C08L81/02

CPC分类号： C08G75/04 ,  C08K5/06 ,  C08L81/02

摘要： The present disclosure relates to the production of bis-thiol compounds, preferably DMDH/DMDH oligomer mixtures, and their use in the production of liquid polysulfide polymers