Basf Se Corporation

Markus Jegelka

Peter Rudolf

Indre Thiel

Joaquim Henrique Teles

Johann-Peter Melder

Hermann Luyken

Robert Baumann

Thomas Krug

Jan-Dirk Arndt

Boris Buschhaus

Stephanie Jaegli

Barbara Becker

Gordon Brasche

Michael Lorenz

Bernd Bruchmann

Karl-Heinz Schumacher

Ulrike Licht

Volker Maywald

Roland Goetz

Daniel Saelinger

Birgit Gockel

Thomas Fenlon

Manfred Ehresmann

Elliot Christ

A bonding process is described in which two substrates are bonded together by applying to the surface of at least one of the substrates a curable, not yet cured 2-component adhesive that comprises, in a first component, a compound A having at least one defined cyclic thiocarbonate unit having a five-membered ring structure and, in a second component, a curing compound B selected from compounds having at least one functional group selected from primary amine groups and secondary amine groups.

Adhesive method using two-component adhesives based on compounds having cyclothiocarbonate units

A process for preparing coatings or sealed materials using a coating composition or a sealant that contains a first component and a second component. The first component includes a compound A) with at least one five-membered cyclic monothiocarbonate group. The second component includes a compound B) with at least one amino group. The at least one amino group can be a primary or secondary amino group or blocked primary or secondary amino group. Compounds A) or B) may additionally have at least one polymerizable, ethylenically unsaturated group. The coating composition or sealant may further include a compound C) with at least one polymerizable, ethylenically unsaturated group.

Coating composition or sealant comprising a compound with a five- membered cyclic monothiocarbonate group

A polymer obtainable by reacting a compound A) comprising at least one five-membered cyclic monothiocarbonate group and at least one polymerizable, ethylenically unsaturated group, a compound B) comprising at least one amino group, selected from primary or secondary amino groups, optionally a compound C) which is different from compound A) and comprises at least one five-membered cyclic monothiocarbonate group, and optionally a compound D) which is different from compound A) and comprises at least one functional group that reacts with a group —SH.

Polymers of a compound comprising a monothiocarbonate group and an ethylenically unsaturated group

A compound of formula IVa includes two or three Rto Rgroups which represent hydrogen, and the Rto Rgroups not being hydrogen represent a group CH—O—R, CH—O—C(═O)—R, or —CH—NRR, with Rto Rbeing a linear or branched alkyl group, alkoxy group, polyalkoxy group, or alkenyl group with at maximum 30 carbon atoms.

Thiocarbonate compounds

A process prepares a compound containing at least one cyclic monothiocarbonate group, wherein a salt of an acidic compound with at least one acidic hydrogen atom is reacted with a compound of formula (I), wherein one of the groups Rto Ris a group of formula (II), -A-X, with A representing an organic group with at least one carbon atom and X representing a halide, and the remaining groups Rto Rindependently from each other represent hydrogen or an organic group with 1 to 50 carbon atoms.

Method for the preparation of compounds with cyclic monothiocarbonate groups

A method for manufacturing an isocyanate compound represented by formula (2) (2) wherein R1 represents a methyl group, an ethyl group, a cyclopropyl group, a chlorine atom, a bromine atom, or a methoxy group; and R2 represents an alkyl group having 1 to 6 carbon atoms, comprising reacting an aniline compound represented by formula (1) (1) wherein R1 and R2 are defined as above with a phosgene compound at a temperature of from 40&#xb0; C. to the boiling point of the inert solvent in at least one kind of inert solvent.

Manufacturing method for an aromatic isocyanate compound

Process for the preparation of a compound with at least one five-membered cyclic monothiocarbonate group wherein a) a compound with at least one epoxy group is used as starting material b) the compound is reacted with phosgene or an alkyl chloroformate thus giving an adduct and c) the adduct is reacted with a compound comprising anionic sulfurthus obtaining the compound with at least one five-membered cyclic monothiocarbonate group.

Method for the preparation of thiocarbonates

The present invention relates to a process for preparing ethylenediamine (EDA), where the process comprises the steps a) to c). In step a), formaldehyde is reacted with hydrocyanic acid (HCN) to form formaldehyde cyanohydrin (FACH), where the hydrocyanic acid is completely free or largely free of sulfur dioxide (SO). The FACH prepared in this way is reacted with ammonia (NH) to form aminoacetonitrile (AAN) in step b), whereupon a hydrogenation of AAN in the presence of a catalyst to form EDA is carried out in step c).

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The present invention relates to a process for purifying ethylenediamine (EDA) by distillation, wherein the process comprises the steps a) and b). In step a), a mixture (G1) comprising water, EDA and N-methylethylenediamine (N-MeEDA) is fed into a distillation apparatus (D1), and the major part of the water comprised in the mixture (G1) is separated off overhead at a pressure of greater than 4.8 bara. From the bottom of (D1), the water-enriched mixture (G2) is fed into a distillation apparatus (D2) in step b). At the top of (D2), the major part of the N-MeEDA is distilled off. The stream (S3) obtained from the bottom of (D2) comprises EDA, with the components water and N-MeEDA comprised in the mixture (G1) having been largely or completely removed. Further distillation steps can optionally be carried out in order to obtain pure EDA, for example when diethylenetriamine (DETA) is additionally comprised in the mixture (G1). If ammonia is additionally comprised in the mixture (G1), an ammonia removal is preferably additionally carried out before carrying out the step a) in the process of the invention.

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Ludwigshafen, Germany

Markus Jegelka