Abstract: The present invention relates to a method of storing a biocatalyst, which biocatalyst is capable of converting acrylonitrile to acrylamide, comprising the steps: (a) providing an aqueous suspension comprising the biocatalyst, which is capable of converting acrylonitrile to acrylamide, which aqueous suspension is an aqueous fermentation broth; (b) sequentially in either order or simultaneously (b) concentrating the aqueous suspension comprising the biocatalyst to a concentration of at least 3% (w/w); and (b2) reducing the temperature of the aqueous suspension comprising the biocatalyst to a temperature of below 8° C., thereby forming a concentrated aqueous suspension; and (c) maintaining the concentrated aqueous suspension of step (b) at a temperature of below 8° C. The invention also relates to a biocatalyst composition obtainable by this method and also the use of the biocatalyst composition in a process of preparing (meth-) acrylamide aqueous solution from (meth-) acrylonitrile.

Abstract: Described herein are methods for the production of 4-cyano benzoic acid or salts thereof from terephthalonitrile using nitrilase as catalyst. Also described herein are compositions including 4-cyano benzoic acid.

Abstract: The present invention relates to a process for preparing ammonium (meth-) acrylate, aqueous ammonium (meth-) acrylate solutions obtainable by such process, and (meth-) acrylic acid homopolymers or copolymers obtainable by polymerizing such ammonium (meth-) acrylate. The invention furthermore relates to a modular, relocatable bioconversion unit for manufacturing aqueous ammonium (meth-) acrylate solutions.

Abstract: Described herein are methods for the production of ammonium acrylate or salts thereof from acrylonitrile using nitrilase as a catalyst.

Abstract: Compounds of the formula in which R1 is an organic radical having a (meth)acryloyl group and R2, R3, and R4 independently of one another are an H atom or a C1 to C10 alkyl group.

Abstract: What are described are copolymers formed from (a) at least one monomer M1 of the formula in which R1 is an organic radical having a (meth)acryloyl group, R2, R3 and R4 are each independently a hydrogen atom or a C1- to C10-alkyl group; and (b) at least one ethylenically unsaturated, free-radically copolymerizable monomer M2 other than the monomers M1. What are also described are two-pack adhesives comprising the copolymers and a polyfunctional hardener. The copolymers and the two-pack adhesives can be used as laminating adhesives.

Abstract: What are described are copolymers formed from (a) at least one monomer M1 of the formula in which R1 is an organic radical having a (meth)acryloyl group, R2, R3 and R4 are each independently a hydrogen atom or a C1- to C10-alkyl group; and (b) at least one ethylenically unsaturated, free-radically copolymerizable monomer M2 other than the monomers M1. What are also described are two-pack adhesives comprising the copolymers and a polyfunctional hardener. The copolymers and the two-pack adhesives can be used as laminating adhesives.

Abstract: Compounds of the formula in which R1 is an organic radical having a (meth)acryloyl group and R2, R3, and R4 independently of one another are an H atom or a C1 to C10 alkyl group.