Delayed-tack adhesive composition
AssigneeToyo Ink Manufacturing Co., Ltd.
InventorsKenichi Shiba, Yoshinobu Ishikawa, Masaki Nomura
Life of this patent
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Abstract
A delayed-tack adhesive composition exhibiting a high tack strength even for adherends made of non-polar materials such as polyethylene and polypropylene, which comprises a (co)polymer prepared by the use of a radical-polymerizable monomer having a straight-chain or branched alkyl group having 9 to 18 carbon atoms and a plasticizer being solid at ordinary temperatures.
Claims11
A delayed-tack adhesive composition comprising at least one thermoplastic polymer selected from the group consisting of (a) homopolymers each prepared from a radical-polymerizable monomer having a straight-chain or branched alkyl group having 9 to 18 carbon atoms, (b) copolymers each prepared from at least two radical-polymerizable monomers each having a straight-chain or branched alkyl group having 9 to 18 carbon atoms and (c) copolymers each prepared from at least one radical-polymerizable monomer having a straight-chain or branched alkyl group having 9 to 18 carbon atoms and at least one monomer copolymerizable therewith, and a plasticizer being solid at ambient temperatures.
A processing for preparing a delayed-tack adhesive article comprising the steps:
- coating a substrate with a delayed-tack adhesive composition, which comprises at least one member selected from the group consisting of (a) homopolymers each prepared from a radical-polymerizable monomer having a straight-chain or branched alkyl group having 9 to 18 carbon atoms, (b) copolymers each prepared from at least two radical-polymerizable monomers each having a straight-chain or branched alkyl group having 9 to 18 carbon atoms and (c) copolymers each prepared from at least one radical-polymerizable monomer having a straight-chain or branched alkyl group having 9 to 18 carbon atoms and at least one monomer copolymerizable therewith, and a plasterizer being solid at ambient temperatures, thereby obtaining an adhesive composition layer, and
- drying the adhesive composition layer.
A process for preparing a delayed-tack adhesive composition, which comprises bringing together at least one member selected from the group consisting of (a) homopolymers each prepared from a radical-polymerizable monomer having a straight-chain or branched alkyl group having 9 to 18 carbon atoms, (b) copolymers each prepared from at least two radical-polymerizable monomers each having a straight-chain or branched alkyl group having 9 to 18 carbon atoms and (c) copolymers each prepared from at least one radical-polymerizable monomer having a straight-chain or branched alkyl group having 9 to 18 carbon atoms and at least one monomer copolymerizable therewith and a plasticizer being solid at ambient temperatures.
Dependencies are inferred from the claim text.