Essentially ethylene thiourea free cross linkable composition comprising a chloroprene rubber having defined contents of cations from the second or third main group and resinate anions are provided, which possess improved curing characteristics for increased productivity and lower vulcanization temperatures for energy-saving manufacturing methods and vulcanizates obtained by using said chloroprene rubber.

Essentially ethylene thiourea free cross linkable composition comprising a chloroprene rubber having defined contents of cations from the second or third main group and resinate anions are provided, which possess improved curing characteristics for increased productivity and lower vulcanization temperatures for energy-saving manufacturing methods and vulcanizates obtained by using said chloroprene rubber.

The present invention provides processes (100, 200, 300, 400) for making a flexible packaging substrate having one or more Fresnel lenses (410, 602) and a product made therefrom. The said process comprises providing one or more Fresnel lenses (410, 602) on a first surface (408a, 610a) of a substrate/film (408, 610); and overlapping a predetermined portion (411, 603) of the Fresnel lenses (410, 602) on the substrate/film (408, 610) by printing or foil stamping. The flexible packaging substrate having one or more Fresnel lenses comprises a substrate (408) having the Fresnel lens or the pattern of Fresnel lenses (410) on the first surface (408a) thereof, wherein a predetermined portion (411) of the Fresnel lenses (410) is covered to hide irregular/uneven/torn edges.

The present invention provides processes (100, 200, 300, 400) for making a flexible packaging substrate having one or more Fresnel lenses (410, 602) and a product made therefrom. The said process comprises providing one or more Fresnel lenses (410, 602) on a first surface (408a, 610a) of a substrate/film (408, 610); and overlapping a predetermined portion (411, 603) of the Fresnel lenses (410, 602) on the substrate/film (408, 610) by printing or foil stamping. The flexible packaging substrate having one or more Fresnel lenses comprises a substrate (408) having the Fresnel lens or the pattern of Fresnel lenses (410) on the first surface (408a) thereof, wherein a predetermined portion (411) of the Fresnel lenses (410) is covered to hide irregular/uneven/torn edges.

An object of the present invention is to provide a layer for suppressing permeation of soil moisture that has a low environmental load and can be easily constructed, and a method of forming the same. The method of forming a layer for suppressing permeation of soil moisture comprises a step of spraying coagulant for a natural rubber latex over a target soil and then spraying a natural rubber latex over the target soil, and repeating the step twice or more.

An object of the present invention is to provide a layer for suppressing permeation of soil moisture that has a low environmental load and can be easily constructed, and a method of forming the same. The method of forming a layer for suppressing permeation of soil moisture comprises a step of spraying coagulant for a natural rubber latex over a target soil and then spraying a natural rubber latex over the target soil, and repeating the step twice or more.

A masterbatch manufacturing method in accordance with the present disclosure comprises an operation in which pre-coagulation rubber latex comprising filler is coagulated to obtain a coagulum; an operation in which the coagulum is dewatered; and an operation in which the dewatered coagulum is plasticized as it is dried by means of an extruder; wherein, during the operation in which the dewatered coagulum is plasticized as it is dried, the coagulum comprises a peptizing agent.

A masterbatch manufacturing method in accordance with the present disclosure comprises an operation in which pre-coagulation rubber latex comprising filler is coagulated to obtain a coagulum; an operation in which the coagulum is dewatered; and an operation in which the dewatered coagulum is plasticized as it is dried by means of an extruder; wherein, during the operation in which the dewatered coagulum is plasticized as it is dried, the coagulum comprises a peptizing agent.

Disclosed are a method of preparing a resin powder and an integrated reactor for the same. When a coagulation process is performed using an acidic coagulant in the integrated coagulator for latex coagulation and aging according to the present invention, a remaining acidic coagulant is also removed from a reactor through neutralization, and thus, a resin powder having enhanced moist-heat resistance and thermal stability may be prepared.

Disclosed are a method of preparing a resin powder and an integrated reactor for the same. When a coagulation process is performed using an acidic coagulant in the integrated coagulator for latex coagulation and aging according to the present invention, a remaining acidic coagulant is also removed from a reactor through neutralization, and thus, a resin powder having enhanced moist-heat resistance and thermal stability may be prepared.