A propylene copolymer, a preparation method therefor, and an application thereof are provided. The copolymer forms a cross-linked network by means of a reaction between a furan-containing propylene copolymer and a small molecule of a coupling agent, thereby achieving a chemical bond connection between a polypropylene resin phase and an ethylene-propylene copolymer elastomer phase, fundamentally strengthening the force between the two phases, and improving the mechanical properties of a material. Meanwhile, the copolymer can achieve the decrosslinking of a material during melt processing such that the material has thermoplasticity, and after cooling, it can be crosslinked again to produce network structure.

A propylene copolymer, a preparation method therefor, and an application thereof are provided. The copolymer forms a cross-linked network by means of a reaction between a furan-containing propylene copolymer and a small molecule of a coupling agent, thereby achieving a chemical bond connection between a polypropylene resin phase and an ethylene-propylene copolymer elastomer phase, fundamentally strengthening the force between the two phases, and improving the mechanical properties of a material. Meanwhile, the copolymer can achieve the decrosslinking of a material during melt processing such that the material has thermoplasticity, and after cooling, it can be crosslinked again to produce network structure.

Provided are an ethylene-propylene-diene monomer (EPDM) copolymer and a method of preparing the same. An EPDM copolymer which has more improved miscibility with inorganic fillers such as carbon black, may further facilitate dispersibility in mixing to further decrease the viscosity of a compound composition, and may provide a compound composition having excellent processability and mechanical properties. A method of preparing the same is also provided.

Provided are an ethylene-propylene-diene monomer (EPDM) copolymer and a method of preparing the same. An EPDM copolymer which has more improved miscibility with inorganic fillers such as carbon black, may further facilitate dispersibility in mixing to further decrease the viscosity of a compound composition, and may provide a compound composition having excellent processability and mechanical properties. A method of preparing the same is also provided.

Painting in commercial, residential, and retail environments requires extreme care to avoid paint being deposited where it is not required. Drop cloths are commonly used to protect a floor or furniture during the painting process. However, these are generally simply plastic sheets to provide a barrier to the liquid paint and nothing more. Accordingly, it would be advantageous to provide a drop sheet or tarp that supports a liquid material drying process such as by dehydration, coagulate, etc. or form solid materials thereby reducing the instances of subsequent paint transfer from the drop sheet or tarp directly or indirectly to other surfaces and/or objects. It would also be advantageous to drop sheet or tarp that provides a non-slip surface which prevents the drop sheet from sliding around and remains well in place without additional weights, tape, etc.

Painting in commercial, residential, and retail environments requires extreme care to avoid paint being deposited where it is not required. Drop cloths are commonly used to protect a floor or furniture during the painting process. However, these are generally simply plastic sheets to provide a barrier to the liquid paint and nothing more. Accordingly, it would be advantageous to provide a drop sheet or tarp that supports a liquid material drying process such as by dehydration, coagulate, etc. or form solid materials thereby reducing the instances of subsequent paint transfer from the drop sheet or tarp directly or indirectly to other surfaces and/or objects. It would also be advantageous to drop sheet or tarp that provides a non-slip surface which prevents the drop sheet from sliding around and remains well in place without additional weights, tape, etc.

This invention relates to a polyolefin blend composition comprising a polyolefin base polymer component and a functionalized polybutadiene component. The polyolefin blend exhibits both i) an increased melt flow and ii) an increased impact toughness and/or melt elasticity, as compared to the same composition without the functionalized polybutadiene. This invention also relates to a method of increasing the melt flow of a polyolefin and simultaneously increasing the impact toughness and/or the melt elasticity of the polyolefin by blending a polyolefin base polymer component and a functionalized polybutadiene component.

This invention relates to a polyolefin blend composition comprising a polyolefin base polymer component and a functionalized polybutadiene component. The polyolefin blend exhibits both i) an increased melt flow and ii) an increased impact toughness and/or melt elasticity, as compared to the same composition without the functionalized polybutadiene. This invention also relates to a method of increasing the melt flow of a polyolefin and simultaneously increasing the impact toughness and/or the melt elasticity of the polyolefin by blending a polyolefin base polymer component and a functionalized polybutadiene component.

The application relates to a vessel closure seal, in particular for fat-containing filling materials, comprising a polymer compound of which the seal consists essentially or entirely, a) wherein the polymer compound is PVC-free and comprises at least one TPS, and at least two different co-PPs, or at least one co-PP with a Shore A hardness of max. 80, a crystallisation enthalpy of max. 30 J/g and a melting point of at least 155° C., b) and the polymer compound has a Shore A hardness at 70° C. of between 30 and 85 and a Molt Flow Index (5 kg/190° C.) of less than 20 g/10 min.

The application relates to a vessel closure seal, in particular for fat-containing filling materials, comprising a polymer compound of which the seal consists essentially or entirely, a) wherein the polymer compound is PVC-free and comprises at least one TPS, and at least two different co-PPs, or at least one co-PP with a Shore A hardness of max. 80, a crystallisation enthalpy of max. 30 J/g and a melting point of at least 155° C., b) and the polymer compound has a Shore A hardness at 70° C. of between 30 and 85 and a Molt Flow Index (5 kg/190° C.) of less than 20 g/10 min.