Nippon Paper Industries Co., Ltd.

Fumiyasu Sakakibara

Koji Kimura

Naosuke Komoto

Ryuji Doi

Shunji Sekiguchi

Takato Takenaka

Isamu Ono

Ryo Koike

Takao Yoshimoto

Kei Kondo

Chiaki Hiraoka

An object is to provide a dispersion resin composition which can maintain dispersion stability even if the added amount of an emulsifier is reduced. Provided is a dispersion resin composition including, at least: a modified polyolefin resin in which a modification component containing an α,β-unsaturated carboxylic acid derivative with a ring structure has been introduced to a polyolefin resin; and an aqueous dispersion medium, wherein the modified polyolefin resin has a degree of ring opening, represented by the equation (1), of 70 or more:degree of ring opening=modification degree×rate of ring opening  (1)

Dispersion resin composition

The present invention has an object to provide a modified polyolefin resin capable of forming a coating film that is excellent in water-resistant adhesiveness under a high temperature condition. The present invention provides a modified polyolefin resin including a graft-modified product in which a component (A) that is a polyolefin resin is graft-modified with a component (B) that is an α,β-unsaturated carboxylic acid or a derivative thereof, and having a tensile modulus of 250 MPa or higher, and a weight-average molecular weight of 70,000 or more and less than 200,000.

Modified polyolefin resin and dispersion composition thereof

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Tokyo, Japan

Fumiyasu Sakakibara