Repulpable adhesive

An adhesive and repulp technology, applied in adhesive types, film/sheet adhesives, non-polymer organic compound adhesives, etc., can solve problems such as reducing adhesion

Inactive Publication Date: 2010-03-24
TESA SE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantage of these additives is that they reduce the tack compared to the unadded stock adhesive, making the adhesive less "sticky"

Method used

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  • Repulpable adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Example 1: Reference Composition 1

[0053] 599g of the following solution, 397g of polyoxyethylene (15) cocoamine (polyoxyethylene (15) cocoamine) (trade name Ethomeen C-25, Akzo; CAS No.61791-14-8) and 0.70g of bisphenol A dishrunk Glyceryl ether (bisphenol A epichlorohydrin, Mw<700; trade name Epikote 828LVEL, Hexion, CAS No.25068-38-6) mixed, the solution is: 47% acrylic acid, 48% butyl acrylate and 5 A 30% concentration solution of a radically polymerized scaffold polymer consisting of % vinylcaprolactam in a 1:1:1 mixture of water, isopropanol and acetone.

[0054] The scaffold polymer is also characterized by a mass average molar mass Mg of 9×10 5 g / mol, and a polydispersity of 8.

Embodiment 2

[0055] Example 2: (base polymer and additives from Example 1)

[0056] The composition described in Example 1 was additionally mixed with 17.3 g of diammonium hydrogen phosphate.

Embodiment 3

[0057] Example 3: (base polymer and additives from Example 1)

[0058] The composition described in Example 1 was additionally mixed with 17.3 g of a commercially available high complexing sodium polyphosphate and sodium alkylphosphonate preparation (trade name Kappafos D11, manufacturer: Kapp-Chemie, according to the manufacturer Provides a calcium-binding capacity of 120 mg CaO / g) mix.

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Abstract

The invention relates to a repulpable adhesive comprising orthophosphoric acid, to adhesive tapes comprising at least one layer of such an adhesive, and to the use of adhesive tapes of this kind.

Description

technical field [0001] The present invention relates to repulpable ahesives, and more particularly to adhesives that bond to filler-containing materials. Background technique [0002] One established method of providing repulpable adhesives consists in the preparation of (meth)acrylic polymers or acrylate copolymers comprising acrylic acid and at least one acrylate and / or methacrylate comonomer, e.g. Alkyl acrylate, Alkyl methacrylate, 2-Ethoxyallyloxyethyl methacrylate, 2-Ethoxyethyl acrylate, Hexaethyl methacrylate Hexaethyl methacrylate, ethylhexyl acrylate, butyl acrylate, isooctyl acrylate, etc. Where appropriate, the polymer may also include other free-radically copolymerizable comonomers such as vinyl caprolactam, vinyl acetate, and the like. [0003] The base polymer can be, and usually is, mixed with resins and / or plasticizers so that the adhesive properties of the resulting (pressure-sensitive) adhesive can be adjusted. The added component is desirably water-sol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J11/04C09J7/02C09J7/04C09J133/02
CPCC09J4/00C09J11/04C08K3/32Y10T156/109Y10T428/2852
Inventor 卡伊·埃尔林曼斯蒂芬·伍尔夫克里斯廷·克伯
Owner TESA SE
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