A shrinkable film capable of being overlapped and heat sealed, a preparation method for the film, and a packaging bag prepared using same, including outer surface layers and a heat sealing layer. Each outer surface layer includes a low-molecular weight compound and is subjected to electron cross-linking treatment, and the low-molecular weight compound is selected from paraffin, oleamide, stearic acid, and one or more of their derivatives. The low-molecular weight compound in each outer surface layer can, during overlapping and heat sealing, be migrated in a polymer under the action of being heated to influence movement of polymer molecular chains, and can be migrated to two molten interfaces to hinder mutual penetration of the polymer molecular chains. Further, by performing electronic cross-linking treatment on the outer surface layers, the outer surface layers form a polymer molecular chain cross-linking structure, and the movement of the polymer molecular chains is reduced.

A shrinkable film capable of being overlapped and heat sealed, a preparation method for the film, and a packaging bag prepared using same, including outer surface layers and a heat sealing layer. Each outer surface layer includes a low-molecular weight compound and is subjected to electron cross-linking treatment, and the low-molecular weight compound is selected from paraffin, oleamide, stearic acid, and one or more of their derivatives. The low-molecular weight compound in each outer surface layer can, during overlapping and heat sealing, be migrated in a polymer under the action of being heated to influence movement of polymer molecular chains, and can be migrated to two molten interfaces to hinder mutual penetration of the polymer molecular chains. Further, by performing electronic cross-linking treatment on the outer surface layers, the outer surface layers form a polymer molecular chain cross-linking structure, and the movement of the polymer molecular chains is reduced.

Provided is a PSA sheet that allows installation of a protection sheet with good shape precision on the surface of an object to be protected. The PSA sheet provided by this invention comprises a substrate whose primary component is a resin film and a PSA layer placed on one face of the substrate. The PSA sheet comprises a protection sheet part which is adhered to an adherend to protect it, a marginal part bounded from the protection sheet part by a tear-off line surrounding the protection sheet part, and a tear-aiding structure provided along the tear-off line. The PSA sheet is configured so that after the protection sheet part is adhered to the adherend, when the marginal part is pulled in a direction in which the PSA sheet is peeled off the adherend, the marginal part is torn off the protection sheet part.

The adhesive composition comprising emulsion polymers and microspheres and articles made therefrom are provided. The adhesive is particularly suitable for packages for consumer products that provide sufficient strength and thermal insulation while reducing the overall basis weight of the substrates.

Polar silane linkers are provided that attach to resins to form silane-functionalized resins. The functionalized resins can be bound to hydroxyl groups on the surface of silica particles to improve the dispersibility of the silica particles in rubber mixtures. Further disclosed are synthetic routes to provide the silane-functionalized resins, as well as various uses and end products that benefit from the unexpected properties of the silane-functionalized resins. Silane-functionalized resins impart remarkable properties on various rubber compositions, such as tires, belts, hoses, brakes, and the like. Automobile tires incorporating the silane-functionalized resins are shown to possess excellent results in balancing the properties of rolling resistance, tire wear, and wet braking performance.

A sealing film suitable for food packaging is disclosed, which adopts the following solution. The sealing film comprises, in sequence, a PET layer, a VMPET layer and a PE layer from outside to inside, wherein the PE layer comprises 100-110 parts of PE, 15-20 parts of EVA, 15-20 parts of EAA, 55-60 parts of HDPE and 10-15 parts of LLDPE in parts by mass. In this manner, the addition of HDPE and LLDPE into the PE layer is intended to enhance the tensile strength of the sealing film.

The present invention relates to a hot melt adhesive composition comprising at least one particular aldehyde scavenger, and the use of said aldehyde scavenger(s) to remove or reduce the volatile organic compound(s) (VOC), particularly volatile aldehyde(s) of a hot melt adhesive composition. The hot melt adhesive compositions according to the invention emit low odor during and after their manufacture and application, and are thus particularly useful to manufacture low odor disposable nonwoven absorbent articles.

The present invention relates to a hot melt adhesive composition comprising at least one particular aldehyde scavenger, and the use of said aldehyde scavenger(s) to remove or reduce the volatile organic compound(s) (VOC), particularly volatile aldehyde(s) of a hot melt adhesive composition. The hot melt adhesive compositions according to the invention emit low odor during and after their manufacture and application, and are thus particularly useful to manufacture low odor disposable nonwoven absorbent articles.

Polar silane linkers are provided that attach to resins to form silane-functionalized resins. The functionalized resins can be bound to hydroxyl groups on the surface of silica particles to improve the dispersibility of the silica particles in rubber mixtures. Further disclosed are synthetic routes to provide the silane-functionalized resins, as well as various uses and end products that benefit from the unexpected properties of the silane-functionalized resins. Silane-functionalized resins impart remarkable properties on various rubber compositions, such as tires, belts, hoses, brakes, and the like. Automobile tires incorporating the silane-functionalized resins are shown to possess excellent results in balancing the properties of rolling resistance, tire wear, and wet braking performance.

Polar silane linkers are provided that attach to resins to form silane-functionalized resins. The functionalized resins can be bound to hydroxyl groups on the surface of silica particles to improve the dispersibility of the silica particles in rubber mixtures. Further disclosed are synthetic routes to provide the silane-functionalized resins, as well as various uses and end products that benefit from the unexpected properties of the silane-functionalized resins. Silane-functionalized resins impart remarkable properties on various rubber compositions, such as tires, belts, hoses, brakes, and the like. Automobile tires incorporating the silane-functionalized resins are shown to possess excellent results in balancing the properties of rolling resistance, tire wear, and wet braking performance.