Byk-chemie Gmbh

Dow Global Technolgoies LLC

Buna Sow Leuna Olefinverbund Gmbh

Reynolds Tobacco Gmbh

Byk Kometra Gmbh

Inno Rapthel

Frederik Piestert

Thorsten Kröller

Bianka Leitner

Jochen Gerecke

Andre Rapthel

Dennis Levering

Patricia Oostendorp

Markus Borth

Kerstin Reichwald

Hans-Dieter Voigt

Manfred Gehring

Christel Rom

Dieter Weiwad

Rolf Kakuschke

Hans-Jürgen Eichler

Jochen Wilms

Lutz Haeussler

Klaus Besser

Klaus Dieter Besser

Lutz Häussler

The invention relates to a composition comprising a) a thermoplastic matrix polymer based on one or more ethylenically unsaturated polymerizable monomer(s), wherein the thermoplastic polymer is selected from the group consisting of polyolefins, polystyrene, polyacrylates, ethylene-vinylacetate copolymer, and copolymers and blends of the aforementioned, b) an inorganic flame retardant, c) a polymer based on one or more ethylenically unsaturated polymerizable monomers and having a plurality of alkoxysilane and/or acetoxysilane groups covalently linked to the polymer, wherein the ethylenically unsaturated polymerizable monomers of component c) are different or have a different composition than the ethylenically unsaturated monomer(s) of component a) and d) a clay.

Thermoplastic composition having improved flame retardant properties

The invention relates to a process of preparing a polyolefin polylactic acid polymer blend comprising the steps of i) providing a polyolefin selected from polyethylene, polypropylene, and mixtures and copolymers thereof, ii) providing polylactic acid, iii) providing a polyolefin selected from polyethylene, polypropylene, and mixtures and copolymers thereof grafted with at least one epoxide-functional monomer, iv) providing a polylactic acid grafted with at least one carboxylic acid or carboxylic anhydride functional monomer, v) mixing the components i) to iv) at elevated temperature in a range from 150&#xb0; C. to 260&#xb0; C., and wherein component i) is provided in an amount of 5.0 to 50.0% by weight, component ii) is provided in an amount of 40.0 to 90.0% by weight, component iii) is provided in an amount of 1.0 to 20.0% by weight, and component iv) is provided in an amount of 1.0 to 15.0% by weight, calculated on the sum of components i) to iv).

Polyolefin polylactic acid polymer blends

A method for producing functionalized thermoplastic elastomers on the basis of grafting substrates, selected from olefine-block copolymers of composition 80 to 98 mass-% ethylene-/2 to 20 mass-% C- to C-olefine units or partially crystalline propylene/ethylene and/or C- to C-olefine and/or C- to C-diene-copolymers of composition 50 to 98 mass-% propylene-/2 to 50 mass-% C- and/or C- to C-olefine and/or C- to C-diene units or cross-linked styrene/olefine/styrene or styrene/olefine-block copolymers, wherein, in a liquid mixing reactor per 100 mass parts of particular grafting substrate&#x2014;0.1 to 15 mass parts of at least one functional monomer from the series of functional groups comprising &#x3b1;,&#x3b2;-ethylenic unsaturated compounds or 0.1 to 15 mass parts of a monomer mixture comprising at least one of said functional monomers and&#x2014;0.01 to 10 mass parts of at least one initiator forming free radicals having a 1-hour half-life temperature (T) between 50 and 200&#xb0; C. are added and, at reaction temperatures between 40&#xb0; C. and the melting or softening temperature of the grafting substrate, are polymerized over a reaction period between 10 and 200 min to solid-fluid phase, wherein a grafting product having a grafted functional monomer is produced by such a solid phase functionalization which is used as an input component for further processing. Functionalized thermoplastic elastomers having a degree of functionalization between 0.1 and 5 mass-% can be obtained using the method. Said elastomers are suitable for use as a bonding agent and/or adhesive agent for various substrates or multi-layer composites.

Method for producing functionalized thermoplastic elastomers

Procedure for the manufacture of carboxylated ethylene polymer blends, in which in a 1step, in a fluid mixing reactor, to 100 pbw of a particulate ethylene polymer&#x2014;chosen from among ethylene homopolymers (HDPE, LDPE) and/or linear ethylene copolymers with 2 to &#x2266;20 wt.-% polymerized-in C-olefin units (LLDPE, EOP), with a melt-flow rate MFR (190&#xb0; C./2.16 kg)&#x2267;20 g/10 min&#x2014;are added 0.05-15 pbw of a &#x3b1;,&#x3b2;-ethylenically unsaturated mono and/or dicarboxylic acid or its anhydride (carboxyl monomer), or a monomer mixture containing at least one carboxyl monomer and 0.01-10 pbw of a radical initiator or initiator mixture, and graft-polymerizing at reaction temperatures of 30-120&#xb0; C., over a reaction time of 5-120 min and subsequently, in a 2step, reacting a mixture continuously fed into a reaction extruder of 100 pbw of the modified ethylene polymer obtained in the 1solid phase step, 150-4,000 pbw of an ethylene polymer or polymer blend with a melt flow rate MFR (190&#xb0; C., 2.16 kg)&#x3c;20 g/10 min, as well as 0-4,000 pbw of an olefinic elastomer, at temperatures of 160-260&#xb0; C. and continuously removing the graft-modified ethylene polymer blend that has a degree of carboxylation of 0.05-1 wt.-%. The products obtained are especially suitable as adhesion promoters and/or adhesives for numerous substrates, preferably on and between metallic surfaces.

Method for producing carboxylated ethylene polymer blends

Biodegradable deformable thermoplastic materials and packages made

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Halle, Germany

Inno Rapthel