An amine adduct is made by (1) forming an addition intermediate by heating a mixture comprising at least one diene and at least one unsaturated fatty acyl compound, and reacting the addition intermediate with a diamine to form the amine adduct, or by (2) reacting at least one unsaturated fatty acyl compound with at least one diamine to form an amine intermediate, and heating a mixture of the amidoamine intermediate and at least one diene to form the amine adduct, or by (3) reacting at least one unsaturated fatty tertiary amine compound with at least at least one diene to form the amine adduct. A surfactant composition is derived from the amine adduct and is particularly useful in a method for enhancing the recovery of oil from a reservoir having a production wellbore, comprising introducing an aqueous flooding fluid into the reservoir at one or more locations different from the location of the production wellbore, said fluid comprising the surfactant composition and recovering the oil through the production wellbore.

An amine adduct is made by (1) forming an addition intermediate by heating a mixture comprising at least one diene and at least one unsaturated fatty acyl compound, and reacting the addition intermediate with a diamine to form the amine adduct, or by (2) reacting at least one unsaturated fatty acyl compound with at least one diamine to form an amine intermediate, and heating a mixture of the amidoamine intermediate and at least one diene to form the amine adduct, or by (3) reacting at least one unsaturated fatty tertiary amine compound with at least at least one diene to form the amine adduct. A surfactant composition is derived from the amine adduct and is particularly useful in a method for enhancing the recovery of oil from a reservoir having a production wellbore, comprising introducing an aqueous flooding fluid into the reservoir at one or more locations different from the location of the production wellbore, said fluid comprising the surfactant composition and recovering the oil through the production wellbore.

Polyfunctional amine structures exhibiting at least one hydrophobic moiety selected from the group consisting of; hydrophobic epoxides, hydrophobic glycidyl ethers and hydrophobic (meth)acrylates are described which provide crosslinking capabilities for latex polymer compositions. These crosslinkers not only exhibit latent crosslinking properties but also improved hydrophobicity when compared with existing latex formulations. Latent crosslinking provides advantages associated with fast interactions between the anionic latex charge and the cationic charge associated with these hydrophobically modified polyfunctional amine crosslinkers. Once the latex is coated onto a substrate, the volatile base evaporates and the groups react to form a crosslinked coating with both improved hydrophobic and wash-off properties.

Polyfunctional amine structures exhibiting at least one hydrophobic moiety selected from the group consisting of; hydrophobic epoxides, hydrophobic glycidyl ethers and hydrophobic (meth)acrylates are described which provide crosslinking capabilities for latex polymer compositions. These crosslinkers not only exhibit latent crosslinking properties but also improved hydrophobicity when compared with existing latex formulations. Latent crosslinking provides advantages associated with fast interactions between the anionic latex charge and the cationic charge associated with these hydrophobically modified polyfunctional amine crosslinkers. Once the latex is coated onto a substrate, the volatile base evaporates and the groups react to form a crosslinked coating with both improved hydrophobic and wash-off properties.

The present invention relates to a process for the synthesis of cysteamine or a salt thereof.

The present invention relates to a process for the synthesis of cysteamine or a salt thereof.

Process for manufacturing a crystalline alkali metal salt of the general formula (I) [R.sup.1CH(COO)N(CH.sub.2COO).sub.2]M.sup.1.sub.3 (I) wherein M.sup.1 is selected from alkali metal cations, same or different, R.sup.1 is selected from C.sub.1-C.sub.4-alkyl and CH.sub.2CH.sub.2COOM.sup.1, comprising the step of (b) crystallizing said alkali metal salt from an aqueous solution containing in the range of from 5 to 30% by weight of alkali metal hydroxide, referring to said aqueous solution.

Process for manufacturing a crystalline alkali metal salt of the general formula (I) [R.sup.1CH(COO)N(CH.sub.2COO).sub.2]M.sup.1.sub.3 (I) wherein M.sup.1 is selected from alkali metal cations, same or different, R.sup.1 is selected from C.sub.1-C.sub.4-alkyl and CH.sub.2CH.sub.2COOM.sup.1, comprising the step of (b) crystallizing said alkali metal salt from an aqueous solution containing in the range of from 5 to 30% by weight of alkali metal hydroxide, referring to said aqueous solution.

The present invention is directed towards a process for the synthesis of compounds with the general formula (II) or their respective alkali metal salts by oxidation of compounds of general formula (I) with oxygen

##STR00001## in the presence of a heterogeneous catalyst containing a metal of group 10 of the periodic table of the elements, wherein R.sup.1 and R.sup.2 and R.sup.3 are same or different and selected from H and C.sub.1-C.sub.6-alkyl, non-substituted or substituted with one or more moieties selected from COOH and O-R.sup.4 with R.sup.4 being selected from H and C.sub.1-C.sub.4-alkyl.

The present invention is directed towards a process for the synthesis of compounds with the general formula (II) or their respective alkali metal salts by oxidation of compounds of general formula (I) with oxygen

##STR00001## in the presence of a heterogeneous catalyst containing a metal of group 10 of the periodic table of the elements, wherein R.sup.1 and R.sup.2 and R.sup.3 are same or different and selected from H and C.sub.1-C.sub.6-alkyl, non-substituted or substituted with one or more moieties selected from COOH and O-R.sup.4 with R.sup.4 being selected from H and C.sub.1-C.sub.4-alkyl.