A foamable polymer composition comprising a crosslinkable polymer, a crosslinking peroxide compound, and a chemical blowing agent comprising a functionalized particulate bicarbonate containing at least one additive. The additive may be selected from the group consisting of a fatty acid, a rosin acid, any derivative thereof, and salts thereof; or any combinations thereof, such as comprising abietic acid, dihydroabietic acid, neoabietic acid, a rosin acid ester, linoleic acid, or mixtures thereof. The particulate bicarbonate may be preferably functionalized by spray-coating, extrusion or co-grinding with at least one additive. The functionalized particulate bicarbonate may further comprise 0.1-5 wt % silica. A process for manufacturing a foamed crosslinked polymer, such as EVA and/or crosslinked polyolefins, and a foamed crosslinked polymer obtained by such process.

The present invention relates to a polymeric composition suitable for watercrafts or nautical applications. The present invention relates also the use of a transparent polymeric composition for watercrafts. More particularly the present invention relates to a transparent (meth)acrylic polymer composition and relates also to a process for preparing such a (meth)acrylic polymer composition, its use in watercrafts and watercraft comprising it.

An ion exchange membrane has multiple layers of ionic polymers which each contain substantially different chemical compositions. i.e. varying side chain lengths, varying backbone chemistries or varying ionic functionality. Utilizing completely different chemistries has utility in many applications such as fuel cells where for example, one layer can help reduce fuel crossover through the membrane. Or one layer can impart substantial hydrophobicity to the electrode formulation. Or one layer can selectively diffuse a reactant while excluding others. Also, one chemistry may allow for impartation of significant mechanical properties or chemical resistance to another more ionically conductive ionomer. The ion exchange membrane may include at least two layers with substantially different chemical properties.

A method for manufacturing a medical instrument having a lubricating layer (coating layer) that exhibits excellent durability (particularly, sliding durability) is provided. The method for manufacturing a medical instrument is a method for manufacturing a medical instrument that includes a base layer and a lubricating layer carried on at least a portion of the base layer. The method includes applying a solution including a block copolymer having a structural unit derived from a reactive monomer having an epoxy group and a structural unit derived from a hydrophilic monomer, a choline derivative, and a solvent, on the base layer.

In one or more embodiments, the present invention provides a low molecular weight, non-toxic, resorbable poly(ethylene glycol) (PEG)-block-poly(propylene fumarate) (PPF) diblock copolymers and poly(propylene fumarate) (PPF)-block-poly(ethylene glycol) (PEG)-block-poly(propylene fumarate) (PPF) triblock copolymers (and related methods for their making and use) that permits hydration for the formation of such things as hydrogels and has constrained and predictable material properties suitable for 3D printing and drug delivery applications. Using continuous digital light processing (cDLP) hydrogels the diblock and triblock copolymers can be photochemically printed from an aqueous solution into structures having a 10-fold increase in elongation at break compared to traditional diethyl fumarate (DEF) based printing. Furthermore, PPF-PEG-PPF triblock hydrogels have also been found in vitro to be biocompatible across a number of engineered MC3T3, NIH3T3, and primary Schwann cells.

A thermally conductive dielectric film includes a thermoplastic layer including polyester segments and 5 to 30% by wt polyether amide segments. The thermally conductive dielectric film has a thickness of less than 100 micrometers.

The invention relates to a process for producing a polypropylene composition using a first extruder comprising successive zones comprising a first zone, a second zone, a third zone and a fourth zone and a second extruder comprising successive zones comprising a first zone and a second zone, the process comprising the steps of: 1a) introducing a first propylene-based polymer in the first zone of the first extruder, 1b) melt mixing the first propylene-based polymer in the second zone of the first extruder, 1c) adding an additive masterbatch to the mixture of step 1b) in the third zone of the first extruder and 1d) melt-mixing the mixture of step 1c) in the fourth zone of the first extruder to obtain the polypropylene composition, wherein the maximum temperature in the fourth zone of the first extruder is lower than the maximum temperature in the second zone of the first extruder and is lower than 240° C., wherein the additive masterbatch is produced in the second extruder by a process comprising the steps of: 2a) introducing a second propylene-based polymer and organic additives in the first zone of the second extruder and 2b) melt mixing the mixture of step 2a) in the second zone of the second extruder to obtain the additive masterbatch, wherein the maximum temperature in the second zone of the second extruder is lower than the maximum temperature in the second zone of the first extruder and is lower than 240° C.

The present disclosure relates to unsaturated polyolefins and processes for preparing the same. The present disclosure further relates to curable formulations comprising the unsaturated polyolefins that show improved crosslinking.

Provided are: an inorganic powder-filled resin composition which is highly filled with an inorganic powder, has excellent uniform dispersibility of the inorganic powder, and has stable mechanical properties after formation; and a formed body using the same. This inorganic powder-filled resin composition contains a thermoplastic resin and an inorganic powder at a mass ratio of 50:50 to 10:90, and is obtained by adding a neutralized product of a polymer comprising, as a constitutional unit, 50-100 mol % of α,β-unsaturated carboxylic acid, and 0-50 mol % of other monomers. Said formed body is produced using the resin composition.

The sheet-shaped photocurable composition of the present invention includes components (A) to (D) as follows, and is in a sheet shape at 25° C. in a state before curing: Component (A): (meth)acrylic triblock copolymer, Component (B): (meth)acrylate oligomer (excluding the component (A)), Component (C): a monomer having a (meth)acryloyl group and having a specific structure, and Component (D): photoinitiator.