Patent ID: 11958823
Assignee: BASF SE
Field: Organic fine chemistry (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A process for manufacturing a polymer comprising urethane groups, the process comprising:
in a first alternative, reacting
A) a five-membered cyclic monothiocarbonate, and
B) a compound comprising at least two amino groups, selected from primary or secondary amino groups, and
C) a compound comprising at least one carbon-carbon triple bond or at least two functional groups that react with a —SH group; or

in a second alternative, reacting
A) a five-membered cyclic monothiocarbonate, and
D) a compound with at least one primary or secondary amnmo group and at least one functional group that reacts with a group —SH,

wherein
A) is a monothiocarbonate of formula I, wherein R1, R2, R3, and R4 each independently represent hydrogen or an organic group comprising up to 50 carbon atoms; and
R2 and R4 and the two carbon atoms to which R2 and R4 are bonded optionally form a five to ten membered carbon ring,
where in the first alternative when the at least two functional groups of compound C) that react with the —SH group are present they are selected from the group consisting of non-aromatic, ethylenically unsaturated groups, isocyanate groups, groups with a non-aromatic carbon-nitrogen double bond, carbonyl groups and halides, and
where in the second alternative, the compound D) includes as the at least one functional group a functional group selected from the group consisting of non-aromatic, ethylenically unsaturated groups; a carbon-carbon triple bond; isocyanate groups; groups with a non-aromatic carbon-nitrogen double bond; carbonyl groups; and halides.