Adhesive

Patent metadata

Field	Value
Publication number	US-2016200952-A1
Application number	US-201414914289-A
Country	US
Kind code	A1
Filing date	Jul 10, 2014
Priority date	Aug 26, 2013
Publication date	Jul 14, 2016
Grant date	—

Abstract

The object of the present invention is to provide a novel adhesive. The characteristics of the present invention is an adhesive comprising an organic polymer having a main chain formed by a water-soluble polymer unit, and a hydrophilic organic group and a self-assembling group bonded lo the water-soluble polymer unit; and a curing agent.

First claim

1 . An adhesive comprising:
an organic polymer having a main chain formed by a water-soluble polymer unit, and a hydrophilic organic group and a self-assembling group bonded to the water-soluble polymer unit; and a curing agent.

2 . The adhesive according to claim 1 , wherein a hydrocarbon group is bonded to the water-soluble polymer unit.

3 . The adhesive according to claim 1 , wherein the water-soluble polymer is poly((meth)acrylic acid) or poly((meth)acryl amide), and the hydrophilic organic group, the self-assembling group or the hydrocarbon group is bonded to a side chain of the poly((meth)acrylic acid) or the (meth)acryl amide.

4 . The adhesive according to claim 1 , wherein the hydrophilic organic group is a hydrocarbon group substituted by a hydrophilic group.

5 . The adhesive according to claim 1 , wherein the self-assembling group is an amino acid residue or an oligopeptide.

6 . The adhesive according to claim 1 , wherein the content of the self-assembling group is not less than 5% by mass and not more than 50% by mass relative to the whole amount of the organic polymer.

7 . The adhesive according to claim 5 , wherein an amino acid that constitutes the amino acid residue or the oligopeptide in the self-assembling group comprises at least one amino acid selected from alanine, leucine, isoleucine and valine.

8 . The adhesive according to claim 4 , wherein the hydrophilic group is a hydroxy group or an amino group optionally forming an ammonium salt.

9 . The adhesive according to claim 1 ,
wherein the organic polymer has units represented by general formula (I):

wherein R 1 represents a hydrogen atom or a methyl group; R 2 represents a hydrocarbon group having 1 to 15 carbon atoms; L 1 represents —O— or —NH—; X represents a hydrophilic group; R 3 represents a hydrogen atom or a methyl group; R 4 represents a hydrocarbon group having 1 to 30carbon atoms; L 2 represents —O— or —NH—; L 3 represents a single bond or —CO—; A represents a self-assembling group; R 5 represents a hydrogen atom or a methyl group; R 6 represents a hydrocarbon group having 3 to 30 carbon atoms; L 4 represents —O— or —NH—; m, n and o represent the abundance ratios of the units, and each of m and n represents a numerical value more than 0 and o represents a numeral value not less than 0.

10 . The adhesive according to claim 9 wherein R 1 represents a hydrogen atom or a methyl group; L 1 represents —O— or —NH—; R 2 represents a hydrocarbon group having 1 to 6 carbon atoms; X represents a hydroxy group or an amino group which may form an ammonium salt; R 3 represents a hydrogen atom or a methyl group; R 4 represents a hydrocarbon group having 3 to 20 carbon atoms; L 2 represents —O— or —NH—; L 3 represents —CO—; R 6 represents a hydrocarbon group having 4 to 10 carbon atoms; A represents an amino acid residue or oligopeptide which contains at least one amino acid selected from alanine, leucine, isoleucine and valine as a constituent amino acid; and m:n:o satisfies (2 to 20):1:(0 to 3) in general formula (I).

11 . The adhesive according to claim 1 , wherein the curing agent is an amidating agent for carboxyl terminals of a unit of the oligopeptide.

12 . The adhesive according to claim 1 , having an in-water curable property.

13 . An organic polymer comprising:
a main chain formed by water-soluble polymer unit; and a hydrophilic organic group and a self-assembling group bonded to the water-soluble polymer unit.

14 . The organic polymer according to claim 13 , comprising units represented by general formula (I):

wherein R 1 represents a hydrogen atom or a methyl group; R 2 represents a hydrocarbon group having 1 to 6 carbon atoms; L 1 represents —O— or —NH—; X represents a hydroxy group or an amino group optionally forming an ammonium salt; R 3
represents a hydrogen atom or a methyl group; R 4 represents a hydrocarbon group having 3 to 20 carbon atoms; L 2 represents —O— or —NH—; L 3 represents a single bond or —CO—; A represents an amino acid residue or oligopeptide which contains at least one amino acid selected from alanine, leucine, isoleucine and valine as a constituent amino acid; R 5 represents a hydrogen atom or a methyl group; R 6 represents a hydrocarbon group having 4 to 10 carbon atoms; L 4 represents -O— or —NH—; m, n and o represent the abundance ratios of the units, and each of m and n represents a numerical value greater than 0, o represents a numeral value not less than 0, and m:n:o satisfies (2 to 20):1:(0 to 3).

15 . The organic polymer according to claim 14 wherein R 1 represents a hydrogen atom or a methyl group; L 1 represents —O— or —NH—; R 2 represents a linear alkylene group having 1 to 4 carbon atoms; X represents a hydroxy group; R 3 represents a hydrogen atom or a methyl group; R 4 represents a linear alkylene group having 4 to 8 carbon atoms; L 2 represents —O— or —NH—; L 3 represents —CO—; A represents an oligopeptide that is an alanine di- to hexa-mer; and m:n:o satisfies (7 to 13):1:(0 to 3) in general formula (I).

16 . A method for producing an organic polymer, comprising:
copolymerizing a first monomer wherein a hydrophilic organic group is bonded to a monomer of which homopolymer is a water-soluble polymer with a second monomer wherein a self-assembling group is bonded to a monomer of which homopolymer is a water-soluble polymer.

17 . The method for producing an organic polymer according to claim 16 , wherein the monomer of which homopolymer is a water-soluble polymer is (meth)acrylic acid or (meth)acrylic acid amide.

18 . A method for producing the adhesive as recited in claim 1 , comprising:
mixing an organic polymer with a curing agent.

Assignees

• Japan Science & Tech Agency

Inventors

• Takahara Atsushi
• Nishida Jin

Classifications

• C09J139/00

  Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen; Adhesives based on derivatives of such polymers · CPC title

• C08F226/02

  by a single or double bond to nitrogen · CPC title

• C09J201/02

  characterised by the presence of specified groups {, e.g. terminal or pendant functional groups} · CPC title

• C09J9/00

  Adhesives characterised by their physical nature or the effects produced, e.g. glue sticks (C09J7/00 takes precedence) · CPC title

• C09J133/24 Primary

  Homopolymers or copolymers of amides or imides · CPC title