The present invention relates to an ethylene polymer composition comprising: (A) an ethylene polymer comprising epoxy-groups, and (B) a cross-linking agent comprising: (B1) an organo-metallic Lewis acid, and at least one of: (B2) a compound comprising at least one amino group; and (B3) a compound comprising at least one hydroxyl group.

The present invention provides rubber compositions suitable for tyre manufacture comprising a functionalised polymer and a functionalised silica.

The present disclosure relates to a multilayer pressure sensitive adhesive assembly comprising at least a first pressure sensitive adhesive layer superimposed to a second polymer layer, wherein a curable liquid precursor of the first pressure sensitive adhesive polymer layer comprises a low Tg (meth)acrylate copolymer and a high Tg (meth)acrylate copolymer having a weight average molecular weight (Mw) of above 20,000 Daltons. The present disclosure also relates to a method of manufacturing such a pressure sensitive adhesive assembly and uses thereof.

Disclosed herein is a composition comprising a propylene based polymer; a polymeric ethylene ionomer; a vulcanizing agent that is a crosslinker and that is reactive with the polymeric ethylene ionomer; and a compatibilizer that is a crystalline block composite including (1) a crystalline ethylene based polymer, (2) a crystalline alpha-olefin based polymer derived from a C.sub.3-10 α-olefin, and (3) a block copolymer comprising 10 to 90 wt % of a crystalline ethylene block comprising at least 85 wt % of units derived from ethylene and 10 to 90 wt % of a crystalline alpha-olefin block comprising at least 90 wt % of units derived from the C.sub.3-10 α-olefin.

Composition for making magnetic coverings comprising at least one elastomer, at least one magnetic filler, at least one compatibilizer, wherein the at least one magnetic filler is present in the composition in an amount comprised between 90% and 300% by weight, preferably between 100% and 250% by weight based on the weight of the least one elastomer.

A medical rubber part in which non-elution characteristics are maintained even after sterilization with gamma ray, a packaging article for the medical rubber part, and a medical rubber composition for manufacturing the medical rubber part can be provided or implemented. The medical rubber composition can contain or comprise: a (a) base polymer containing a halogenated isobutylene-isoprene rubber; a (b) polyethylene; and a (c) triazine derivative as a crosslinking agent. A proportion of the triazine derivative contained per 100% by mole of a halogen of the halogenated isobutylene-isoprene rubber contained in the (a) base polymer can be 1% by mole to 15% by mole.

A rubber composition capable of manufacturing a sheet transport roller having an excellent friction coefficient and wear resistance. A sheet transport roller rubber composition contains an ethylene-α-olefin-diene copolymer as a base rubber, a sulfur-based crosslinking agent, and a coumarone-indene resin. It is preferable that the sheet transport roller rubber composition be obtained by mixing the base rubber and the coumarone-indene resin at a temperature equal to or higher than a softening point of the coumarone-indene resin to prepare a mixture, and then mixing this mixture with a sulfur-based crosslinking agent.

Polyamide-filled EVA copolymer compositions comprising a continuous EVA copolymer phase and a discontinuous polyamide phase are produced by a melt mixing process. When crosslinked with peroxide curatives the polyamide-filled EVA copolymer compositions exhibit enhanced resistance to heat aging compared to EVA elastomer compositions reinforced with carbon black or other inorganic fillers.

This invention relates to monodisperse magnetic hydrogel polymer particles comprising a magnetic material and a polymer formed from (a) a hydrophilic vinylic monomer having a log P.sub.oct/wat (log P) of less than about 0.5; and (b) a crosslinker comprising at least two vinyl groups. The invention also relates to monodisperse coated hydrogel polymer particles comprising a polymer formed from (a) a hydrophilic vinylic monomer having a log P.sub.oct/wat (log P) of less than about 0.5; and (b) a crosslinker comprising at least two vinyl groups; and a coating. Also provided are methods of forming the monodisperse magnetic hydrogel polymer particles and monodisperse coated polymer particles.

The invention is directed to a process for the preparation of a heterophasic propylene copolymer comprising mixing 55-95 wt % of a propylene polymer and 5-45 wt % of an ethylene-propylene rubber with 0.01 −1 wt % of an organic peroxide with a decomposition half-life time of 6 minutes at a temperature between 80 and 109° C. and 0.001 −1.5 wt % of a co-agent, wherein all weight percentages are based on the total weight of the polymer composition, wherein the mixing is performed at a temperature which is below the temperature where the organic peroxide has a decomposition half-life time of 6 minutes to obtain a mixed polymer composition, and subsequently melt-mixing the mixed polymer composition. The invention also relates to A heterophasic propylene copolymer having a. Overall ethylene content between 5-20 wt % measured with FTIR b. MFI between 3 and 25 (g/10 min) measured according to ISO 1133-1:2011 at 230° C. and 2.16 kg c. 20° C. xylene soluble fraction (CXS) between 8 and 30 (wt %) d. a BTT according to the formula: BTT≦65-10* (CXS/MFI) wherein the wt % is defined relative to the total of the composition.