GB2141638A - Water-activatable adhesive coatings - Google Patents

Water-activatable adhesive coatings Download PDF

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Publication number
GB2141638A
GB2141638A GB08411914A GB8411914A GB2141638A GB 2141638 A GB2141638 A GB 2141638A GB 08411914 A GB08411914 A GB 08411914A GB 8411914 A GB8411914 A GB 8411914A GB 2141638 A GB2141638 A GB 2141638A
Authority
GB
United Kingdom
Prior art keywords
weight
units
width
water
carrier substrate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB08411914A
Other versions
GB2141638B (en
GB8411914D0 (en
Inventor
Eugen Reinhardt
Lutz Hoppe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dow Produktions und Vertriebs GmbH and Co oHG
Original Assignee
Wolff Walsrode AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wolff Walsrode AG filed Critical Wolff Walsrode AG
Publication of GB8411914D0 publication Critical patent/GB8411914D0/en
Publication of GB2141638A publication Critical patent/GB2141638A/en
Application granted granted Critical
Publication of GB2141638B publication Critical patent/GB2141638B/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N7/00—Flexible sheet materials not otherwise provided for, e.g. textile threads, filaments, yarns or tow, glued on macromolecular material
    • D06N7/0002—Wallpaper or wall covering on textile basis
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J133/00—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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
    • C09J133/02—Homopolymers or copolymers of acids; Metal or ammonium salts thereof
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J133/00—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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
    • C09J133/24—Homopolymers or copolymers of amides or imides
    • C09J133/26—Homopolymers or copolymers of acrylamide or methacrylamide
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/21—Paper; Textile fabrics
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
    • C09J7/32—Water-activated adhesive, e.g. for gummed paper
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/04—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06N3/042—Acrylic polymers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paper (AREA)
  • Laminated Bodies (AREA)

Abstract

A width of a carrier substrate, especially a wall paper, having coating on its back surface a water activatable adhesive layer based on a copolymer consisting of 0 to 10 % by weight of acrylonitrile units 30 to 70 % by weight of acrylamide units and of 30 to 60 % by weight of (meth)acrylic acid units.

Description

SPECIFICATION Water-activatable adhesive coatings, particularly on wallpaper This invention relates to width of carrier substrates, particularly wallpapers, which are coated with a water-activatable adhesive layer based on acrylic acid copolymer.
In the manufacture of wall coverings, socalled ready-pasted wallpapers are being produced to an increased extent. These readypasted or even coated-back papers are produced by the technique of flocculation in which the back of a paper is coated with a thin paste solution and ground methyl cellulose, carboxymethyl cellulose or starch or mixtures thereof are flocculated into that solution.
One disadvantage of wallpapers coated in this way is the slight abrasion of the paste granules which gives rise to problems at the printing and roll-forming stage.
In addition, the grain structure of the paste powder can produce troublesome impressions during rolling on the front side or printed side.
Another disadvantage of starch- or cellulosebased pastes in the loss of adhesiveness in the production of polyvinylchloride (PVC) structure-foamed wallpapers which is achieved by applying temperatures of 180-250"C.
These disadvantages may be eliminated by using an acrylic acid copolymer for producing the adhesive coating.
Accordingly, the present invention relates to width of carrier substrate, particularly wall coverings, which are coated on their back with a water-activatable adhesive layer based on at least one copolymer consisting of (1) from 0.0 to 10% by weight and preferably from 0 to 5% by weight of acrylonitrile units, (2) from 30 to 70.0% by weight and preferably from 40 to 65% by weight of acrylamide units, and (3) from 30 to 60% by weight and preferably from 35 to 55% by weight of acrylic acid and/or methacrylic acid units, up to 100 mole percent of which may be present in the form of their ammonium salt, the sum of (1) to (3) always having to be 100% by weight.
The copolymers used in accordance with the invention may be produced in known manner by hydrolyzing a polyacrylonitrile in water at elevated temperature. The production of these water-soluble copolymers from water insoluble polyacrylonitrile by hydrolysis is carried out by known methods of the type described in DE-PS 1,207,086 and in DE-PS 2,031,972. The copolymers should have a viscosity of from 5 104 to 5 105 mPa.s, preferably of from 105 to 3 105 mPa.s measured on a 30% aqueous solution.
The copolymer is preferably applied to the width of carrier substrate, preferably wallpapers, for example to width of synthetic films of fabrics, of paper, of natural products, such as for example cork of combinations of different materials, such as of fabric/paper, from an aqueous solution using known surfacecoating units, for example roll coating, knife coating, nozzle coating or foam coating.
The copolymer is preferably applied in quantities of from 3 to 30 g per square metre of surface and may be activated for pasting by treatment with water, preferably by immersion in water or by drawing through water.
The water-activatable adhesive coating has a very smooth surface which enables the wallpapers to be stored without any problems.
EXAMPLE 1 a) A 1 30 g/m2 duplex cardboard was coated with a 30% aqueous solution of a polymer of 3% by weight of acrylonitrile units, 47% by weight of acrylic acid units, and 50% by weight of acrylamide units, having a viscosity of approximately 200,000 mPa.s (as measured with a Haake VT Viskotester at 23"C) and dried at 150"C to a residual moisture content of 5%. The solution was applied by means of rolls. The polymer coating amounted to 20 g/m2. No difficulties were encountered at the printing and embossing stages. After moistening (water activation), the wallpapers could be satisfactory handled and hung.
b) A paper coated with the copolymer was also subsequently printed on its front with PVC paste. The web was then passed through a drying tunnel (temperature approximately 210"C, contact time approximately 35 seconds), as a result of which the PVC-paste expanded and formed the structure of the wallpaper. It was found that this svallpaper could also be satisfactorily hung. No loss of adhesiveness was observed.
EXAMPLE 2 A 130 g/m2 duplex cardboard was rollcoated with a 30% solution of a copolymer of 50% by weight of acrylic acid units, and 50% by weight of acrylamide units, having a viscosity of approximately 180,000 mPa.s (as measured with a Haake VT 24 Viskotester at 23"C) and dried at 150 C to a residual moisture content of 5%. The copolymer coating amounted to 1 8 g/m2. No difficulties were encountered during printing and embossing. The wallpaper could be satisfactorily handled and hung after moistening (water activation).
EXAMPLE 3 A rough-fiber wallpaper, Order No. 52, coarse-white was coated with a 30% solution of a copolymer of 41% by weight of acrylic acid, and 59% by weight of acrylamide units, having a viscosity of approximately 1 00,000 mPa.s (as measured with a Haake VT 24 Viscotester at 23"C) and dried at 150"C to a residual moisture content of 5%. The polymer solution was foamed in a kitchen mixer to a weight per litre of 500 g/l and knife-coated onto the back of the paper web. The coating weight was 1 5 g/m2. The wallpaper could be satisfactorily handled and hung after moistening (water activation).
EXAMPLE 4 A rough-fiber wallpaper, Order No. 70, Superkorn ("Supergrain") was nozzle-coated with a 30% solution of a copolymer of 4% by weight of acrylinitrile units, 41% by weight of methacrylic acid units, and 55% by weight of acrylamide units, having a viscosity of approximately 300,000 mPa.s (as measured with a Haake VT 24 Viskotester at 23"C) and dried at 150"C to a residual moisture content of 5%. The copolymer coating amounted to 22 g/m2. The wallpaper could be satisfactorily handled.
COMPARISON EXAMPLE A duplex cardboard was coated as in Example 1 with a 15% by weight methyl cellulose solution (viscosity 200,000 mPa.s, as measured with a Haake VT 24 Viskotester at 23"C) instead of a copolymer solution. The methyl cellulose coating amounted to 20 g/m2. Although the paper web could be satisfactorily handled and hung as wallpaper, it suffered damage during storage and rolling.
After further treatment as in Example 1 b) it was found that the adhesiveness of the adhesive coating was no longer adequate and the wallpaper fell off the wall.
It will of course be understood that the present invention has been described above purely by way of example, and modifications of detail can be made within the scope and spirit of the invention.

Claims (6)

1. A width of carrier substrate which is coated on its back with a water-activatable adhesive layer based on at least one copolymer consisting of (1) 0 to 10% by weight of acrylinitrile units, (2) 30 to 70% by weight of acrylamide units, and (3)30 to 60% by weight of acrylic and/or methacrylic acid units, up to 100 mole percent of which may be present in the form of their ammonium salt, the sum of (1) to (3) always having to amount to 100% by weight.
2. A width of carrier substrate as claimed in Claim 1, which is a wall covering.
3. A width of carrier substrate as claimed in Claim 1 or 2, wherein the copolymer consists of (1) 0 to 5% by weight of acrylinitrile units, (2) 40 to 65% by weight of acrylamide units, and (3) 35 to 55% by weight of acrylic acid and/or methacrylic acid units, up to 100 mole % of which may be in the form of their ammonium salt.
4. A width of a carrier subtrate as claimed in claim 1, wherein the copolymer has a viscosity of from 5'104 to 5'105 mPa.s measured on a 30% aqueous solution.
5. A width of a carrier substrate as claimed in claim 1 which is a wall paper.
6. A width of a carrier substrate according to claim 1 substantially as hereinbefore described in any of Examples 1 to 4.
GB08411914A 1983-05-14 1984-05-10 Water-activatable adhesive coatings Expired GB2141638B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19833317591 DE3317591A1 (en) 1983-05-14 1983-05-14 WATER-ACTIVATED ADHESIVE COATINGS, ESPECIALLY ON WALLPAPERS

Publications (3)

Publication Number Publication Date
GB8411914D0 GB8411914D0 (en) 1984-06-13
GB2141638A true GB2141638A (en) 1985-01-03
GB2141638B GB2141638B (en) 1986-10-01

Family

ID=6198979

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08411914A Expired GB2141638B (en) 1983-05-14 1984-05-10 Water-activatable adhesive coatings

Country Status (2)

Country Link
DE (1) DE3317591A1 (en)
GB (1) GB2141638B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003031750A1 (en) * 2001-10-12 2003-04-17 Pergo Ab A process for sealing of a joint between surface elements by use of a glue activated by applying of a liquid

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2790716B1 (en) * 1999-03-08 2001-05-11 Mermet Sa PAINT FABRIC FOR FORMING A COATING OF AN INTERIOR BUILDING SURFACE
DE102012002369A1 (en) 2012-02-07 2013-08-08 Hänsel & Co. GmbH Pre-gelatinized-shaded surface structure, preferably web material comprises support layer, and water-activatable adhesive layer, where adhesive layer comprises binder matrix made of plastic, in which individual paste-granules are embedded
DE102013005666A1 (en) * 2013-04-03 2014-10-09 Erfurt & Sohn Kg Wall covering, in particular wallpaper with activatable adhesive layer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2054628A (en) * 1979-06-26 1981-02-18 Scott Bader Co Adhesive coatings for prepasted wall coverings

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2031972C3 (en) * 1970-06-29 1974-08-29 Wolff Walsrode Ag, 3030 Walsrode Water-soluble hydrolysis products of polyacrylonitrile

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2054628A (en) * 1979-06-26 1981-02-18 Scott Bader Co Adhesive coatings for prepasted wall coverings

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003031750A1 (en) * 2001-10-12 2003-04-17 Pergo Ab A process for sealing of a joint between surface elements by use of a glue activated by applying of a liquid

Also Published As

Publication number Publication date
GB2141638B (en) 1986-10-01
DE3317591A1 (en) 1984-11-15
GB8411914D0 (en) 1984-06-13

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PCNP Patent ceased through non-payment of renewal fee