JP2014001332A5

JP2014001332A5 -

Info

Publication number: JP2014001332A5
Application number: JP2012138575A
Authority: JP
Filing date: 2012-06-20
Publication date: 2015-04-09
Anticipated expiration: 2032-06-20

Claims

(A) a (meth) acrylic acid ester monomer having an alkyl group with C4 to C10 carbon atoms, (B) a copolymerizable monomer containing a hydroxyl group, and (C) a copolymerizable monomer containing a carboxyl group And (D) a polyalkylene glycol mono (meth) acrylate monomer and (E) at least one of a nitrogen-containing vinyl monomer or an alkoxy group-containing alkyl (meth) acrylate monomer that does not contain a hydroxyl group, and an acrylic copolymer. The acrylic polymer further comprising (F) a trifunctional or higher functional isocyanate compound, (G) a crosslinking retarder, (H) a crosslinking catalyst, and (I) a polyether-modified siloxane compound. The acid value of 0.01 to 8.0,
The (F) trifunctional or higher functional isocyanate compound is selected from the group (F-1) of the first aliphatic isocyanate compound group, and (F-2) the second aromatic system. A pressure-sensitive adhesive composition comprising at least one selected from the group of isocyanate compounds.

Of the (F) trifunctional or higher functional isocyanate compound, the (F-1) first aliphatic isocyanate compound group includes an isocyanurate body of a hexamethylene diisocyanate compound, an isocyanurate body of an isophorone diisocyanate compound, and a hexamethylene diisocyanate. A compound adduct body, an isophorone diisocyanate compound adduct body, a hexamethylene diisocyanate compound burette body, and an isophorone diisocyanate compound burette body, and the (F-2) second aromatic isocyanate compound group comprises tolylene diisocyanate. Isocyanurate of compound, isocyanurate of xylylene diisocyanate compound, isocyanurate of hydrogenated xylylene diisocyanate compound, tolylene diisocyanate compound Adducts, adducts xylylene diisocyanate compounds, pressure-sensitive adhesive composition according to claim 1, characterized in that it consists of adducts of hydrogenated xylylene diisocyanate compound.

The copolymerizable monomer containing the (B) hydroxyl group is 8-hydroxyoctyl (meth) acrylate, 6-hydroxyhexyl (meth) acrylate, 4-hydroxybutyl (meth) acrylate, 2-hydroxyethyl (meth) acrylate. At least one selected from the group consisting of N-hydroxy (meth) acrylamide, N-hydroxymethyl (meth) acrylamide, and N-hydroxyethyl (meth) acrylamide,
(B) The copolymerizable monomer containing a hydroxyl group (B) is 0.1 to 5.0 with respect to 100 parts by weight of the (meth) acrylic acid ester monomer having an alkyl group of C4 to C10. Among the copolymerizable monomers contained in parts by weight and containing the hydroxyl group (B), 8-hydroxyoctyl (meth) acrylate, 6-hydroxyhexyl (meth) acrylate, and 4-hydroxybutyl (meth) acrylate The pressure-sensitive adhesive composition according to claim 1, wherein the total amount is from 0 to 0.9 parts by weight.

The copolymerizable monomer containing the (C) carboxyl group is (meth) acrylic acid, carboxyethyl (meth) acrylate, carboxypentyl (meth) acrylate, 2- (meth) acryloyloxyethyl hexahydrophthalic acid, 2- (meth) acryloyloxypropylhexahydrophthalic acid, 2- (meth) acryloyloxyethyl phthalic acid, 2- (meth) acryloyloxyethyl succinic acid, 2- (meth) acryloyloxyethyl maleic acid, At least one selected from the group consisting of carboxypolycaprolactone mono (meth) acrylate and 2- (meth) acryloyloxyethyltetrahydrophthalic acid,
The copolymerizable monomer containing the (C) carboxyl group is 0.35 to 1.100 parts by weight of the (meth) acrylic acid ester monomer having (A) alkyl group having C4 to C10 carbon atoms. The pressure-sensitive adhesive composition according to claim 1, wherein 0 part by weight is contained.

The (D) polyalkylene glycol mono (meth) acrylate monomer is selected from polyalkylene glycol mono (meth) acrylate, methoxypolyalkylene glycol (meth) acrylate, ethoxypolyalkylene glycol (meth) acrylate, The number of carbon atoms of the (A) alkyl group is 1 to 20 parts by weight with respect to 100 parts by weight of the (meth) acrylic acid ester monomer having at least one kind of (A) alkyl group. The adhesive composition in any one of -4.

The (E) nitrogen-containing vinyl monomer or alkoxy group-containing alkyl (meth) acrylate monomer not containing a hydroxyl group is added to 100 parts by weight of the (A) alkyl group monomer having (C) C4 to C10 carbon atoms. On the other hand, 1-20 weight part is contained, The adhesive composition in any one of Claims 1-5 characterized by the above-mentioned.

The (F) trifunctional or higher functional isocyanate compound is selected from the (F-1) first aliphatic isocyanate compound group, and the (F-2) second fragrance. At least one selected from the group of isocyanate compounds of the group system, and a total of 0.5 to 5.0 parts by weight with respect to 100 parts by weight of the copolymer, The pressure-sensitive adhesive composition according to any one of claims 1 to 6.

The polyether-modified siloxane compound (I) is a polyether-modified siloxane compound having an HLB value of 7 to 12,
The pressure-sensitive adhesive according to any one of claims 1 to 7, wherein the polyether-modified siloxane compound (I) is contained in an amount of 0.01 to 0.5 parts by weight with respect to 100 parts by weight of the copolymer. Agent composition.

The (G) crosslinking retarder is a ketoenol tautomer,
The pressure-sensitive adhesive composition according to claim 1, wherein 1.0 to 5.0 parts by weight of the (G) crosslinking retarder is contained with respect to 100 parts by weight of the copolymer. object.

The (H) crosslinking catalyst is an organotin compound,
The pressure-sensitive adhesive composition according to any one of claims 1 to 9, wherein 0.01 to 0.5 parts by weight of the (H) crosslinking catalyst is contained with respect to 100 parts by weight of the copolymer. .

Adhesive film for a pressure-sensitive adhesive layer obtained by crosslinking a pressure-sensitive adhesive composition according to any one of claims 1-10, characterized by being formed on one surface or both surfaces of the resin film.

It is a surface protection film formed by forming the adhesive layer formed by bridge | crosslinking the adhesive composition in any one of Claims 1-10 on the single side | surface of a resin film, Comprising: Surface protection via the said adhesive layer A surface protective film characterized in that the adherend has no contamination transfer after the film is traced with a ballpoint pen.