US2016186015A1PendingUtilityA1

Pressure-sensitive adhesive transfer tape and transferring implement

Assignee: TOMBOW PENCILPriority: Aug 1, 2013Filed: Jul 29, 2014Published: Jun 30, 2016
Est. expiryAug 1, 2033(~7 yrs left)· nominal 20-yr term from priority
B32B 7/12C09J 2493/005C09J 7/21C09J 2433/00C09J 193/04C09J 7/38C09J 2461/005C09J 133/06C09J 7/401C09J 2491/005C09J 7/22C09J 2425/005C09J 175/16C09J 2433/005C09J 7/10C09J 7/0246C09J 7/045C09J 2201/606C09J 2201/122C09J 2301/122C09J 2301/302
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Claims

Abstract

Provided are a more useful pressure-sensitive adhesive transfer tape and a transferring implement, which are advantageous not only in that, immediately after adherends, such as paper, are put on one another, the adherends can be easily separated from each other and re-bonded together, but also in that, after a predetermined period of time has lapsed from the time when the adherends are put on one another, the adherends are strongly bonded to each other. A pressure-sensitive adhesive transfer tape having, on one surface of a release substrate having release layers formed on both surfaces of a paper or plastic film substrate, a pressure-sensitive transfer layer having an adhesion inhibiting layer made of a terpene or rosin resin or the like and an adhesive layer, wherein the adhesion inhibiting layer and the adhesive layer are successively stacked on one another, and a transferring implement having the same.

Claims

exact text as granted — not AI-modified
1 . A pressure-sensitive adhesive transfer tape comprising: on one surface of a release substrate made of paper or a plastic film, a pressure-sensitive transfer layer having an adhesion inhibiting layer and an adhesive layer, wherein the adhesion inhibiting layer and the adhesive layer are successively stacked on one another,
 the pressure-sensitive adhesive transfer tape being characterized in that the adhesion inhibiting layer prevents the adhesive layer formed on one adherend from being in contact with another adherend to weaken the adhesion between the one and another adherends, enabling the one and another adherends to be easily separated from each other, and, with the passage of time after being put on one another, the adhesion inhibiting layer migrates to another adherend, so that the adherend is in contact with the adhesive layer, exhibiting strong adhesion properties between the adherends.   
     
     
         2 . The pressure-sensitive adhesive transfer tape according to  claim 1 , wherein the adhesion inhibiting layer is formed from one or more types of resins selected from a terpene resin, a rosin derivative, a petroleum resin, a coumarone-indene resin, a hydrogenated aromatic copolymer, a styrene resin, a phenolic resin, an acrylic resin, a xylene resin, and a hydrogenation product thereof. 
     
     
         3 . The pressure-sensitive adhesive transfer tape according to  claim 1 , wherein the adhesion inhibiting layer is formed from a resin having a softening point of 100° C. or lower. 
     
     
         4 . The pressure-sensitive adhesive transfer tape according to  claim 1 , wherein the adhesion inhibiting layer has a thickness of 0.05 μm to 5 μm, and the adhesive layer has a thickness of 5 μm to 50 μm. 
     
     
         5 . The pressure-sensitive adhesive transfer tape according to  claim 1 , wherein the adhesive layer is formed from an acrylic adhesive. 
     
     
         6 . The pressure-sensitive adhesive transfer tape according to  claim 5 , wherein the acrylic adhesive is an acrylic adhesive containing, relative to 100 parts by weight of an acrylic copolymer, 0.1 parts to 10 parts by weight of a crosslinking agent. 
     
     
         7 . The pressure-sensitive adhesive transfer tape according to  claim 1 , wherein the adhesion inhibiting layer is formed on one surface of the release substrate, and then the adhesive layer is formed on the adhesion inhibiting layer. 
     
     
         8 . The pressure-sensitive adhesive transfer tape according to  claim 1 , wherein the adhesion inhibiting layer and the adhesive layer are formed by phase separation on one surface of the release substrate. 
     
     
         9 . The pressure-sensitive adhesive transfer tape according to  claim 8 , which is formed by applying a mixture obtained by mixing a compound forming the adhesion inhibiting layer with the adhesive in a ratio of 10 parts to 50 parts by weight of the compound, relative to 100 parts by weight, in terms of a solids content, of the adhesive. 
     
     
         10 . A transferring implement having the pressure-sensitive adhesive transfer tape according to  claim 1 . 
     
     
         11 . The pressure-sensitive adhesive transfer tape according to  claim 1 , wherein the adhesion inhibiting layer is formed from one type of resin selected from the group consisting of a terpene resin, a rosin derivative, a petroleum resin, a coumarone-indene resin, a hydrogenated aromatic copolymer, a styrene resin, a phenolic resin, an acrylic resin, a xylene resin, and a hydrogenation product thereof. 
     
     
         12 . The pressure-sensitive adhesive transfer tape according to  claim 1 , wherein the adhesion inhibiting layer is formed from a plurality of types of resin selected from the group consisting of a terpene resin, a rosin derivative, a petroleum resin, a coumarone-indene resin, a hydrogenated aromatic copolymer, a styrene resin, a phenolic resin, an acrylic resin, a xylene resin, and a hydrogenation product thereof. 
     
     
         13 . The pressure-sensitive adhesive transfer tape according to  claim 2 , wherein the adhesion inhibiting layer has a thickness of 0.05 μm to 5 μm, and the adhesive layer has a thickness of 5 μm to 50 μm. 
     
     
         14 . The pressure-sensitive adhesive transfer tape according to  claim 13 , wherein the adhesive layer is formed from an acrylic adhesive. 
     
     
         15 . The pressure-sensitive adhesive transfer tape according to  claim 14 , wherein the acrylic adhesive is an acrylic adhesive containing, relative to 100 parts by weight of an acrylic copolymer, 0.1 parts to 10 parts by weight of a crosslinking agent. 
     
     
         16 . The pressure-sensitive adhesive transfer tape according to  claim 15 , wherein the adhesion inhibiting layer is formed on one surface of the release substrate, and then the adhesive layer is formed on the adhesion inhibiting layer. 
     
     
         17 . The pressure-sensitive adhesive transfer tape according to  claim 16 , wherein the adhesion inhibiting layer and the adhesive layer are formed by phase separation on one surface of the release substrate. 
     
     
         18 . The pressure-sensitive adhesive transfer tape according to  claim 17 , which is formed by applying a mixture obtained by mixing a compound forming the adhesion inhibiting layer with the adhesive in a ratio of 10 parts to 50 parts by weight of the compound, relative to 100 parts by weight, in terms of a solids content, of the adhesive.

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