Nippon Paper Industries Co., Ltd.

Nippon Paper Chemicals Co., Ltd.

Minoru Yada

Naosuke Komoto

Masaru Kono

Takato Takenaka

Yuu Takata

Takao Yoshimoto

Hitomi Abe

Kenichi Fujino

Junichi Hayakawa

Shunji Sekiguchi

Isamu Ono

Hideo Hosaka

Kazutaka Nakagawa

Yuuki Kokufu

Kensuke Asai

Tomohiro Okeda

Hiroko Iwakiri

A modified polyolefin resin composition may include a modified polyolefin resin (X) formed by modifying an acid-modified polyolefin resin (A) with a modification component comprising an alcohol (B), in which the modified polyolefin resin composition satisfies (I) to (III): (I) the resin (A) is a resin formed by modifying a polyolefin (a) with an α,β-unsaturated carboxylic acid and a derivative (b) of the α,β-unsaturated carboxylic acid having a structure (b1) derived from at least one carboxy group; (II) a residual ratio of the structure (b1) in the resin (X) is more than 0% to 50% or less; and (III) a content of the alcohol in the composition is 1.0 mol to 5.0 mol relative to 1.0 mol of the structure (b1) that the resin (A) has.

Modified polyolefin resin composition

An object of the present invention is to provide a modified polyolefin resin composition having a high polyethylene content and exhibiting a good balance between a low-temperature stability and an adhesion to a polyethylene substrate and a metal. The present invention provides a modified polyolefin resin that is a graft-modified product in which a component (A) that is a polyolefin resin having an ethylene structural unit content of 50% or more by mole is modified with a component (B) that is an α,β-unsaturated carboxylic acid or an anhydride thereof and a component (C) that is a (meth)acrylate ester represented by the following general formula (I), and an extrapolated melting end temperature (Tem) of the modified polyolefin resin measured in accordance with JIS K7121-1987 using a differential scanning calorimeter at a temperature raising rate of 10° C./minute is 58° C. or lower.

Modified polyolefin resin and use thereof

A chlorinated polyolefin resin may have excellent adhesion and can be produced without using a chlorinated solvent and without producing by-products through a series of production processes. Such a chlorinated polyolefin resin may be a chlorinated polyolefin resin having an amount of chlorine of 1% by weight to 45% by weight obtained by chlorinating a raw material composition in the absence of an organic solvent, wherein the raw material composition includes at least a polyolefin A or an acid-modified product thereof which has fluidity at 40° C. or less and a polyolefin B or an acid-modified product thereof which has a melting point of more than 40° C. and 150° C. or less.

Chlorinated polyolefin resin and method for producing the same

Provided is a resin composition having a large proportion of polyolefin components, allowing preparation of a solution having a high solid content, having a good solution property after long-term storage, having good pigment dispersibility, and including a modified product of component (A): polyolefin resin with component (B): (meth)acrylic acid and/or (meth)acrylic acid ester, in which the weight ratio of the component (A) to the component (B) ((A)/(B)) is 90/10 to 30/70, and the component (B) contains 20% by weight or more of component (B1): an alkoxy (poly)alkylene glycol mono(meth)acrylic acid ester.

Resin composition and uses thereof

An object is to provide a chlorinated polyolefin resin composition being superior in adhesion, solution stability, and chipping resistance. The chlorinated polyolefin resin composition contains a component (A): a polyolefin resin A having a melting point (Tm) obtained with a differential scanning calorimeter (DSC) in the range of 90 to 160&#xb0; C., and a component (B): a polyolefin resin B having a melting point (Tm) obtained with a differential scanning calorimeter (DSC) in the range of 50 to 130&#xb0; C., at least any one of the component (A) and the component (B), or a copolymer thereof being a chlorinated polyolefin resin (where |Tm&#x2212;Tm|&#x2265;5&#xb0; C.).

Chlorinated polyolefin resin composition

An object is to provide a resin composition having excellent performance as a binder such as adhesiveness and, at the same time, retaining solution properties favorably even after a solution is stored for a long period of time. A modified polyolefin resin composition includes a modified polyolefin resin (C), in which the modified polyolefin resin (C) is a resin made by modifying a polymer (A) that is a polymer (a) of a polyolefin resin or a chlorinated polyolefin resin and an &#x3b1;,&#x3b2;-unsaturated carboxylic acid derivative having a structure derived from at least one carboxy group or a chlorinated product (b) thereof with a modification component including an alcohol (B); and a residual ratio of the structure derived from at least one carboxy group in the modified polyolefin resin (C) is 50% or more and 80% or less.

Modified polyolefin resin composition and method for producing the same

Provided is a modified polyolefin resin that is excellent in adhesion to nonpolar substrates such as a polyolefin substrate, and excellent in stability in an alcohol solvent. In the modified polyolefin resin, the following polymer (A) is grafted on the following resin (B). Polymer (A): a polymer including at least one constitutional unit selected from the group consisting of a constitutional unit derived from an &#x3b1;,&#x3b2;-unsaturated carboxylic acid and a constitutional unit derived from a derivative of an &#x3b1;,&#x3b2;-unsaturated carboxylic acid, and having a hydroxyl value in a range of 10 mgKOH/g or larger and 200 mgKOH/g or smaller. Resin (B): a polyolefin resin or a modified product thereof.

Modified polyolefin resin

The present invention aims to provide a resin having an excellent solubility to alcohols, an excellent adherability to nonpolar base materials such as polyolefin, and not containing chlorine; and to provide a resin composition containing a urethane resin, not having the elimination problem of hydrochloric acid caused by external factors, having a good compatibility with a variety of components containing urethane resins, and having a good adherability to a variety of base materials, so that the resin composition can suitably be used as an ink, an adhesive, and paint. The present invention provides a block copolymer comprising a polymer block (A) mainly comprising olefin monomers and a polymer block (B) comprising vinyl monomers having hydroxy groups and other vinyl monomers copolymerizable with the vinyl monomers having hydroxy groups, in which a hydroxy value is within a range of 5 mg KOH/g to 120 mg KOH/g; a dispersion thereof; a resin composition containing the block copolymer and a urethane resin; and uses thereof.

Block copolymer and resin composition

It is an object of the present invention to provide an active energy ray curable resin composition exhibiting good adhesion to a polyolefin-based resin base material. More specifically, there is provided an active energy ray curable resin composition comprising: a block copolymer (C) that includes a polymer block (A) composed mainly of an olefin-based monomer unit and a polymer block (B) composed of a vinyl-based monomer unit having a carboxyl group, a carboxylic anhydride group, or a sulfonic acid group and/or a second vinyl-based monomer unit copolymerizable with the aforementioned vinyl-based monomer unit, the block copolymer (C) having a weight-average molecular weight from 5,000 to 100,000; and an active energy ray curable compound (D).

Growing community of inventors

Tokyo, Japan

Minoru Yada