PRESSURE-SENSITIVE ADHESIVE COMPOSITION FOR ROAD SURFACE OR FLOOR SURFACE AND MARKING SHEET

WIPO Patent Application WO/2020/202762

A1

The present invention addresses the problem of providing a pressure-sensitive adhesive composition for road surfaces or floor surfaces which is excellent in terms of not only conformability to rough surfaces such as asphalt surfaces but also adhesive force, unsusceptibility to peeling, heat resistance, and moist-heat resistance and which can give a marking sheet that is inhibited from suffering an adhesive transfer from the substrate to the adherend when peeled. The pressure-sensitive adhesive composition for road surfaces or floor surfaces of the present invention comprises: a (meth)acrylic copolymer (A) which is a copolymer obtained from monomer ingredients comprising 60-92 mass% alkyl (meth)acrylate (a1) in which the alkyl group has 4-12 carbon atoms, 5-30 mass% alkyl (meth)acrylate (a2) in which the alkyl group has 1-3 carbon atoms, and 3-10 mass% monomer (a3) having an acidic group; and a (meth)acrylic copolymer (B) which is a copolymer obtained from monomer ingredients comprising 90-99.5 mass% alkyl (meth)acrylate (b1) and 0.5-10 mass% monomer (b2) having an amino group.

TOYODA TAKASHI (JP)

PCT/JP2020/003750

October 08, 2020

January 31, 2020

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SOKEN KAGAKU KK (JP)

C09J133/06; B32B15/082; B32B27/00; B32B27/30; C09J7/28; C09J7/29; C09J7/38; E01F9/512; G09F19/22

WO2008010367A1

2008-01-24

JP2018177919A	2018-11-15
JP2017025270A	2017-02-02
JP2009035588A	2009-02-19
US20070218238A1	2007-09-20
US20040058128A1	2004-03-25

SSINPAT PATENT FIRM (JP)

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