A polyolefin composition made from or containing:

a) from 85% to 98% by weight of a composition made from or containing: A) a copolymer of butene-1 with ethylene having a copolymerized ethylene content of up to 18% by mole and no melting peak detectable at the DSC at the second heating scan; and B) an inorganic filler; wherein the B)/A) weight ratio being from 0.3 to 4; and
b) from 2% to 15% by weight of an additional polyolefin different from A).

Thermoplastic elastomer compositions comprising brominated isobutylene paramethyl-styrene terpolymers, one or more thermoplastic polyolefins, optionally, one or more soft thermoplastic elastomers, and a curing system to form such thermoplastic elastomeric compositions that are suitable for use in pharmaceutical articles.

Thermoplastic elastomer compositions comprising brominated isobutylene paramethyl-styrene terpolymers, one or more thermoplastic polyolefins, optionally, one or more soft thermoplastic elastomers, and a curing system to form such thermoplastic elastomeric compositions that are suitable for use in pharmaceutical articles.

Provided is an interlayer film for laminated glass capable of effectively enhancing the sound insulating property at 6300 Hz while effectively preventing deterioration in sound insulating property at 3150 Hz in laminated glass. An interlayer film for laminated glass according to the present invention has a one-layer structure or a two or more-layer structure and includes a resin layer containing a resin and a plasticizer. The interlayer film has a resonance frequency X of 550 Hz or more and 740 Hz or less, a loss factor Y in a secondary mode of 0.35 or more, and satisfies a formula: Y>0.0008X−0.142 in a measurement of resonance frequency in a secondary mode in a damping test for laminated glass according to a central exciting method of laminated glass, when the laminated glass is obtained by arranging the interlayer film between two glass plates of 25 mm wide, 300 mm long and 2 mm thick.

Provided is an interlayer film for laminated glass capable of effectively enhancing the sound insulating property at 6300 Hz while effectively preventing deterioration in sound insulating property at 3150 Hz in laminated glass. An interlayer film for laminated glass according to the present invention has a one-layer structure or a two or more-layer structure and includes a resin layer containing a resin and a plasticizer. The interlayer film has a resonance frequency X of 550 Hz or more and 740 Hz or less, a loss factor Y in a secondary mode of 0.35 or more, and satisfies a formula: Y>0.0008X−0.142 in a measurement of resonance frequency in a secondary mode in a damping test for laminated glass according to a central exciting method of laminated glass, when the laminated glass is obtained by arranging the interlayer film between two glass plates of 25 mm wide, 300 mm long and 2 mm thick.

The present disclosure provides a polyolefin composition made from or containing: A) from about 63 to about 78% by weight of a copolymer of butene-1 with ethylene having a copolymerized ethylene content of up to about 18% by mole and no melting peak detectable at the DSC at the second heating scan; B) from about 22 to about 37% by weight of (i) a propylene homopolymer, or (ii) a propylene copolymer, or (iii) a mixture of two or more of (i) and (ii), having a melting temperature T.sub.m, measured by DSC at the second heating scan, of from about 130° C. to about 165° C.;
wherein (i) the amounts of A) and B) are referred to the total weight of A)+B) and (ii) having a melting enthalpy ΔH.sub.fus, measured by DSC at the second heating scan, of from 7 to 30 J/g.

The present disclosure provides a polyolefin composition made from or containing: A) from about 63 to about 78% by weight of a copolymer of butene-1 with ethylene having a copolymerized ethylene content of up to about 18% by mole and no melting peak detectable at the DSC at the second heating scan; B) from about 22 to about 37% by weight of (i) a propylene homopolymer, or (ii) a propylene copolymer, or (iii) a mixture of two or more of (i) and (ii), having a melting temperature T.sub.m, measured by DSC at the second heating scan, of from about 130° C. to about 165° C.;
wherein (i) the amounts of A) and B) are referred to the total weight of A)+B) and (ii) having a melting enthalpy ΔH.sub.fus, measured by DSC at the second heating scan, of from 7 to 30 J/g.

The present disclosure provides a polyolefin composition made from or containing: A) from about 63 to about 78% by weight of a copolymer of butene-1 with ethylene having a copolymerized ethylene content of up to about 18% by mole and no melting peak detectable at the DSC at the second heating scan; B) from about 22 to about 37% by weight of (i) a propylene homopolymer, or (ii) a propylene copolymer, or (iii) a mixture of two or more of (i) and (ii), having a melting temperature T.sub.m, measured by DSC at the second heating scan, of from about 130° C. to about 165° C.;
wherein (i) the amounts of A) and B) are referred to the total weight of A)+B) and (ii) having a melting enthalpy ΔH.sub.fus, measured by DSC at the second heating scan, of from 7 to 30 J/g.

The invention features hot melt adhesive compositions including from 50% by weight to 95% by weight of a non-single site catalyzed amorphous poly alpha-olefin copolymer derived from propylene and at least one monomer selected from the group consisting of butene and hexene and having a viscosity of no greater 10,000 cP at 190° C. and from 5% by weight to 45% by weight of a polybutene-1 polymer.

The invention features hot melt adhesive compositions including from 50% by weight to 95% by weight of a non-single site catalyzed amorphous poly alpha-olefin copolymer derived from propylene and at least one monomer selected from the group consisting of butene and hexene and having a viscosity of no greater 10,000 cP at 190° C. and from 5% by weight to 45% by weight of a polybutene-1 polymer.