Described herein is an adhesive composition including a copolymer. The adhesive composition has a viscosity of from about 2,000 mPa.Math.s to about 11,500 mPa.Math.s at 150° C. The adhesive composition has a Storage Modulus at 37° C. of from about 3 MPa to 9.5 MPa. The adhesive composition has a Yield Stress at 37° C. of from about 0.8 MPa to about 1.45 MPa.

Described herein is an adhesive composition including a copolymer. The adhesive composition has a viscosity of from about 2,000 mPa.Math.s to about 11,500 mPa.Math.s at 150° C. The adhesive composition has a Storage Modulus at 37° C. of from about 3 MPa to 9.5 MPa. The adhesive composition has a Yield Stress at 37° C. of from about 0.8 MPa to about 1.45 MPa.

The dewaxing aid of the present invention is a dewaxing aid including an ethylene-α-olefin copolymer (A) having a molar ratio [(a)/(b)] of (a) ethylene and (b) an α-olefin having 3 or more and 12 or less carbon atoms of 93/7 to 75/25, and having a weight average molecular weight of 10,000 to 500,000. According to the present invention, a dewaxing aid that is excellent in improving filterability can be provided.

The dewaxing aid of the present invention is a dewaxing aid including an ethylene-α-olefin copolymer (A) having a molar ratio [(a)/(b)] of (a) ethylene and (b) an α-olefin having 3 or more and 12 or less carbon atoms of 93/7 to 75/25, and having a weight average molecular weight of 10,000 to 500,000. According to the present invention, a dewaxing aid that is excellent in improving filterability can be provided.

A polyethylene powder satisfying (Requirements 1 to 3):

(Requirement 1): viscosity-average molecular weight (Mv) is 200,000 or more and 3,000,000 or less
(Requirement 2): complex viscosity |η*|.sub.m obtained by measurement under predetermined <Conditions for Measurement of Slurry Viscoelasticity>satisfies the following formula (1):
590.0×(Mv×10.sup.−4).sup.1.18≥|η*|.sub.m≥13.3×(Mv×10.sup.−4).sup.1.18 (1)
(Requirement 3): a value of any peak when d(log|η*|)/dT is plotted against temperature is 1.0 or more and 3.0 or less.

A polyethylene powder satisfying (Requirements 1 to 3):

(Requirement 1): viscosity-average molecular weight (Mv) is 200,000 or more and 3,000,000 or less
(Requirement 2): complex viscosity |η*|.sub.m obtained by measurement under predetermined <Conditions for Measurement of Slurry Viscoelasticity>satisfies the following formula (1):
590.0×(Mv×10.sup.−4).sup.1.18≥|η*|.sub.m≥13.3×(Mv×10.sup.−4).sup.1.18 (1)
(Requirement 3): a value of any peak when d(log|η*|)/dT is plotted against temperature is 1.0 or more and 3.0 or less.

The present invention relates to substituted 2-iso-propyl-1, 3-dialkoxypropanes, and more particularly to their use as internal donors in Ziegler-Natta catalysts to obtain ethylene (co)polymers with desirable properties. The present disclosure further concerns use of Ziegler-Natta catalyst components comprising said substituted 2-iso-propyl-1, 3-dimethoxypropanes and use of Ziegler-Natta catalysts in ethylene (co)polymerization comprising said Ziegler-Natta catalyst components.

The present invention relates to substituted 2-iso-propyl-1, 3-dialkoxypropanes, and more particularly to their use as internal donors in Ziegler-Natta catalysts to obtain ethylene (co)polymers with desirable properties. The present disclosure further concerns use of Ziegler-Natta catalyst components comprising said substituted 2-iso-propyl-1, 3-dimethoxypropanes and use of Ziegler-Natta catalysts in ethylene (co)polymerization comprising said Ziegler-Natta catalyst components.

The present invention relates to tetrahydrofurfuryl derivatives and more particularly to their use as internal electron donors in Ziegler-Natta catalysts to obtain polymers with desirable properties. The present disclosure further concerns Ziegler-Natta catalyst components comprising said tetrahydrofurfuryl derivatives and Ziegler-Natta catalysts for olefin polymerization comprising said Ziegler-Natta catalyst components, as well as a method for preparing the same and their use in providing polyolefins.

The present invention relates to tetrahydrofurfuryl derivatives and more particularly to their use as internal electron donors in Ziegler-Natta catalysts to obtain polymers with desirable properties. The present disclosure further concerns Ziegler-Natta catalyst components comprising said tetrahydrofurfuryl derivatives and Ziegler-Natta catalysts for olefin polymerization comprising said Ziegler-Natta catalyst components, as well as a method for preparing the same and their use in providing polyolefins.