EVONIK RÖHM GMBH Patent applications |
Patent application number | Title | Published |
20160137583 | METHOD FOR PRODUCING ALPHA-HYDROXYCARBOXYLIC ACID ESTERS - The present invention relates to a process for the production of alpha-hydroxycarboxylic esters by means of alcoholysis of the corresponding alpha-hydroxycarboxamide under heterogeneous catalysis. | 05-19-2016 |
20140051886 | PROCESS FOR PREPARING METHACRYLIC ACID - The present invention relates to a process for preparing methacrylic acid based on the hydrolysis of methacrylic esters. | 02-20-2014 |
20140017335 | METHOD FOR MANUFACTURING ANTIMICROBIAL ACRYLIC MATERIALS - Acrylic materials with antimicrobial activity are tumble blended, melted and extruded through an extruder. The resulting polymer compounds include an acrylic resin, such as methylmethacrylate polymers, copolymers and multipolymers, and blends thereof, silver-containing antimicrobial additives; and optional additives such as impact modifiers, flow promoters, stabilizers and coloring agents. The properties of the acrylic materials, especially the antimicrobial performance, are strongly dependent on the manufacturing process conditions, including feed resins pre-drying, residual moisture content, screw speed and melt temperature. The materials composition and manufacturing procedures are equally significant. | 01-16-2014 |
20130197156 | BLOCK-COPOLYMER CONTAINING CROSSLINKABLE PHOTOINITATOR GROUPS - A block-copolymer containing at least two different blocks wherein block A contains (meth)acrylate monomers the copolymer having a glass transition temperature of less than 15° C., block B contains (meth)acrylate monomers the copolymer having a glass transition temperature of more than 25° C. being free of thio-containing substances in the polymer chain, characterized in that one block contains at least one photoinitiator chemically bound to the chain. | 08-01-2013 |
20130190468 | PROCESS FOR PREPARING A (METH)ACRYLATE COPOLYMER CONTAINING TERTIARY AMINO GROUPS BY FREE-RADICAL POLYMERIZATION IN SOLUTION - The invention relates to a process for preparing a (meth)acrylate copolymer containing tertiary amino groups by free-radical polymerization in solution from a monomer mixture selected from a) 30 to 70% by weight of a C | 07-25-2013 |
20130172511 | BLOCK COPOLYMERS ON THE BASIS OF (METH)ACRYLATE - The invention relates to block copolymers produced by means of controlled polymerization and that have at least one block A or B comprising (meth)acrylate monomers and copolymerizable monomers, and a block P on the basis of functionalized polymers. | 07-04-2013 |
20130112272 | WEATHERING-RESISTANT BACKING FILMS - The invention relates to the use of non-transparent, methacrylate-containing one-, two- or multi-layered films in flexible photovoltaic systems, and to the production of said films by extrusion coating, extrusion lamination (adhesive lamination, melt lamination or hotmelt lamination) or glue lamination. For this purpose, e.g. a thin, inorganic or metallically coated film, for example made of PET, is laminated or coextruded with a weather-resistant film, e.g. a film made of PMMA or PMMA polyolefin coextrudate. In particular, laminates are produced in which at least one of the two layers is non-transparent. An optional inorganic oxide or metal layer has the property of a high barrier effect against water vapour and oxygen while the PMMA layer exhibits weather resistance stability. | 05-09-2013 |
20100263504 | DEVICE AND METHOD FOR PRODUCING A REINFORCED FOAM MATERIAL - The invention relates to a device for producing a reinforced foam material and for receiving a textile semifinished product in a hook. To this end, the device has a first subunit having a transport device and a second subunit having a receiving device. The transport device is designed to convey the textile semifinished product into the receiving device, and the first subunit and the second subunit are designed such that the textile semifinished product can be presented in defined length by a relative movement of the first subunit relative to the second subunit. Furthermore, the receiving device of the second subunit is set up such that the textile semifinished product can be placed in the hooks by a relative movement of the receiving device relative to the hook. | 10-21-2010 |
20100210784 | EMULSION POLYMER COMPRISING ACTIVATORS, PROCESS FOR PREPARATION THEREOF AND USE THEREOF IN TWO-COMPONENT OR MULTICOMPONENT SYSTEMS - Emulsion polymer which can be obtained by polymerization of a mixture. The emulsion polymer of the invention makes it possible to provide two-component or multicomponent systems which cure by means of a redox initiator system and have a controllable pot life, in which use is preferably made of two monomers which swell the emulsion polymer to different extents and of which that having a sufficient swelling action is stored separately from the emulsion polymer, preferably together with a peroxide in an organic solvent, until the system is used. The system is used in adhesives, pourable resins, floor coatings and other reactive coatings, sealing compositions, impregnation compositions, embedding compositions, compositions for producing artificial marble and other artificial stones, compositions for reactive pegs, dental compositions, porous plastic moulds for ceramic objects or in unsaturated polyester resins and vinyl ester resins. | 08-19-2010 |