Abstract: Stereogradient polyesters and processes of preparing same are provided. The stererogradient polyesters are composed of at least two segments of a polyester, each segment being composed of at least a first plurality of backbone units of a first cyclic ester featuring a first stereoconfiguration and a second plurality of backbone units of a second cyclic ester featuring a second stereoconfiguration, the first and second stereoconfigurations being different from one another, whereby each of the at least two segments features a different mol ratio of the at least first and second pluralities of backbone units. The sterogradient polyesters are obtainable by contacting a mixture of the first cyclic ester and the second cyclic ester with a catalyst that exhibits a different kinetic parameter towards ring opening polymerization of each of the cyclic esters, under conditions that promote ring opening polymerization of the cyclic ester.

Abstract: The invention provides polypropylene compositions for producing soft nonwoven fabrics, consisting of at least three propylene-based copolymers differing in content of alpha-olefin comonomers. The provided fabrics are soft and pleasant to touch.

Abstract: A thermoplastic polyolefin composition which is capable of being shaped and repeatedly recycled, comprises propylene-based polymers, said composition being modified with 0.01-5 wt % of organic oligomeric silanes selected from partially hydrolyzed alkoxy substituted vinyl, allyl or methacryl silanes, and blends thereof, and 0.0005-0.5 wt % of a compound capable of generating free radicals.

Abstract: The invention provides shape-stable products for storing and releasing thermal energy, based on thermoplastic polymer compositions containing organic phase change materials (PCM) incorporated into a polymer matrix, the products withstanding multiple melting-crystallization cycles of the PCM while maintaining their shape, dimensions, and the thermal energy storage capacity.

Abstract: The invention provides polypropylene compositions for producing soft nonwoven fabrics, consisting of at least three propylene-based copolymers differing in content of alpha-olefin comonomers. The provided fabrics are soft and pleasant to touch.

Abstract: A thermoplastic polyolefin composition which is capable of being shaped and repeatedly recycled, comprises propy-lene-based polymers, said composition being modified with 0.01-5 wt % of organic oligomeric silanes selected from partially hydrolyzed alkoxy substituted vinyl, allyl or methacryl silanes, and blends thereof, and 0.0005-0.

Abstract: The invention provides shape-stable products for storing and releasing thermal energy, based on thermoplastic polymer compositions containing organic phase change materials (PCM) incorporated into a polymer matrix, the products withstanding multiple melting-crystallization cycles of the PCM while maintaining their shape, dimensions, and the thermal energy storage capacity.

Abstract: The invention provides a method of joining tubular members.

Abstract: The invention provides a method of joining tubular members.

Abstract: The invention provides a process for dynamic vulcanization comprising grafting organic silane on disperse phase component, thereby introducing chains into the component which are cross-linkable in the presence of cross-linking agents when the component is molten. The invention further provides thermoplastic vulcanizates having superior properties, including high flexibility and impact resistance, low hygroscopicity, non-toxicity, and excellent processability.

Abstract: The invention provides a process for dynamic vulcanization comprising grafting organic silane on disperse phase component, thereby introducing chains into the component which are cross-linkable in the presence of cross-linking agents when the component is molten. The invention further provides thermoplastic vulcanizates having superior properties, including high flexibility and impact resistance, low hygroscopicity, non-toxicity, and excellent processability.

Abstract: A method of determining the OD of a printed colorant, comprising: determining a visible wavelength region in which the color is at or near saturation; and if a portion of a determination of saturation is found, determining the OD in a wavelength region at which the color is not at or near saturation.

Abstract: A method of determining the OD of a printed colorant, comprising: determining a visible wavelength region in which the color is at or near saturation; and if a portion of a determination of saturation is found, determining the OD in a wavelength region at which the color is not at or near saturation.

Abstract: A method of determining an adjusted color to be used for computing colorants for printing on a specified substrate, comprising: specifying an apparent color; estimating diffuse reflection from an outside surface of colorants when printed on the specified substrate; and adjusting the specified color for the effects of the estimated diffuse reflection to determine a color to be used for computing the colorants.

Abstract: A method of proportions of toner particles of different colors to be used in a mixture for toning an electrostatic image, the method comprising: determining a desired color for viewing; determining an illumination under which the desired color is to be viewed; determining a target color for printing which results in the desired color being perceived under the illumination; determining a plurality of sets each consisting of only two available candidate toner particles and optionally black and/or transparent color particles; computing a mixture of toner particles of a set of candidate color to particles only from said plurality of sets that best matches target color, according to a predetermined criteria; and mixing the colored toner particles to form a toner for printing.