A laminated foam sheet includes a foam layer, a first non-foam layer positioned on one side of the foam layer, and a second non-foam layer positioned on another side of the foam layer, in which the foam layer includes a polyolefin-based resin, the foam layer has a thickness of 2.0 to 6.0 mm, the foam layer has a closed cell ratio of 70% or more, the first non-foam layer includes a non-cross-linked olefin-based elastomer, the first non-foam layer has a maximum static friction coefficient determined by JIS K7125 of 2.0 or more, the second non-foam layer has a maximum static friction coefficient determined by JIS K7125 of 1.0 or less, and a ratio represented by [basis weight of first non-foam layer (a)]/[basis weight of second non-foam layer (b)] is 0.5 to 2.0.

A polyolefin foam having improved light-transmittance comprises an average cell size of about 70 microns to about 500 microns; a total cell wall thickness to gauge ratio of between about 0.15 to about 0.55; a basis weight of about 0.00005 lb/in.sup.2 to about 0.00050 lb/in.sup.2; an L color solid value of about 95 to about 45; and a light transmittance of about 10% to about 50% according to JIS K 7361-1.

A process for producing a polyolefin foam having improved light-transmittance comprises extruding a foamable sheet at a pressure from about 1 psi to about 55 psi, and foaming the foamable sheet with a foaming agent having an average diameter of about 10 to about 25 microns to produce a foam having a light transmittance of about 10% to about 50% according to JIS K 7361-1.

A laminated foam sheet includes a foam layer, a first non-foam layer positioned on one side of the foam layer, and a second non-foam layer positioned on another side of the foam layer, in which the foam layer includes a polyolefin-based resin, the foam layer has a thickness of 2.0 to 6.0 mm, the foam layer has a closed cell ratio of 70% or more, the first non-foam layer includes a non-cross-linked olefin-based elastomer, the first non-foam layer has a maximum static friction coefficient determined by JIS K 125 of 2.0 or more, the second non-foam layer has a maximum static friction coefficient determined by JIS K7125 of 1.0 or less, and a ratio represented by [basis weight of first non-foam layer (a)]/[basis weight of second non-foam layer (b)] is 0.5 to 2.0.

A foamed article formed by foam injection molding or foam extrusion of a composition is disclosed. The article is formed from a molding composition consisting essentially of: 100 phr of at least two different hydrogenated styrenic block copolymers (HSBC), a first HSBC and a second HSBC, having different molecular weights, a molecular weight ratio of at least 1.2:1, respectively; and a weight ratio of ranging from 5:95 to 95:5, respectively; 10-55 phr of a polypropylene having a melt flow of at least 2 g10/min; and optionally up to 55 phr of a plasticizer, selected from hydrocarbon based oils, fatty acids, triglyceride oils, and mixtures thereof. The composition has a melt flow rate of 2-50 g/10 min, a Shore A hardness of 60-90, a melt strength (F) of at least 0.010 N, and a melt strength (V) of at least 10.

The present invention refers to a process for the production of an additive composition intended to be mixed into a bituminous conglomerate for road paving. The process includes grinding a mixed waste material containing a mixture of plastic materials, which includes at least one plastic material based on a polyolefin thermoplastic material, washing the ground mixed waste material and separating a portion of low-density material which contains the plastic material based on a polyolefin thermoplastic polymer from the mixed waste material. This portion of low-density material is then ground to a particle size between 10 mm and 20 mm; and then mixed with a material based on polyvinyl butyral. The resultant mixture is further ground to produce an additive composition having a particle size between 4 mm and 6 mm.

The invention relates to plastic films and a silicone containing polymer blend composition that can be used in the production of the plastic films which is a polymer composition obtainable from, per 100 parts by weight of the composition, 99.99 to 90 parts by weight of a polyolefin polymer (P) and 0.01 to 10 parts by weight of a masterbatch (M).

A matte synthetic paper is a biaxially oriented polypropylene synthetic paper having a thickness of 25 to 300 m, and includes a printing surface layer as an outermost paper layer. Moreover, by adding a mist flour or a thermoplastic elastomer, the haze and gloss of the printing surface layer can be improved. According to Tappi T480, the printing surface layer having gloss of 15 to 50% is suitable to be printing paper.

An extrusion composition containing at least one resin selected from the group consisting of polypropylene homopolymers, polypropylene random copolymers, and polypropylene impact copolymers. The extrusion composition also contains at least one phosphate ester-based nucleating agent provided in the composition at a use level of between about 0.01 and 0.15 parts by weight, in relation to 100 parts by weight of the resin and at least one co-additive selected from the group consisting of poly(ethylene glycol) and copolymers containing segments of ethylene oxide, wherein the co-additive has a number average molecular weight of about 300 or more, and wherein the use level of the co-additive is about 0.005 parts by weight or more, in relation to 100 parts by weight of the resin.

An extrusion composition containing at least one resin selected from the group consisting of polypropylene homopolymers, polypropylene random copolymers, and polypropylene impact copolymers. The extrusion composition also contains at least one benzoic acid salt-based nucleating agent provided in the composition at a use level of between about 0.01 and 0.15 parts by weight, in relation to 100 parts by weight of the resin and at least one co-additive selected from the group consisting of poly(ethylene glycol) and copolymers containing segments of ethylene oxide, wherein the co-additive has a number average molecular weight of about 300 or more, and wherein the use level of the co-additive is about 0.005 parts by weight or more, in relation to 100 parts by weight of the resin.

This disclosure relates to ethylene interpolymer compositions and films prepared therefrom. Specifically: ethylene interpolymer products having: a dimensionless nonlinear rheology network parameter, .sub.int., greater than or equal to 0.01, satisfying 0.01(Z50).sup.0.78.sub.int.0.01(Z60).sup.0.78 inequality wherein Z is a normalized molecular weight defined by

[00001]$Z=\frac{M_w}{M_e}$

where M.sub.w and M.sub.e are the weight average and entanglement molecular weights, and; a residual catalytic metal of from 0.03 to 5 ppm of hafnium. The disclosed ethylene interpolymer products have a melt index from about 0.3 to about 500 dg/minute, a density from about 0.855 to about 0.975 g/cc, a polydispersity,

[00002]$\frac{M_w}{M_n},$

from about 1.7 to about 25 and a Composition Distribution Breadth Index (CDBI.sub.50) from about 1% to about 98%.