摘要:
The use of an aqueous polyurethane dispersion adhesive is described for producing biodisintegratable composite foils where at least two substrates are adhesive-bonded to one another with use of the polyurethane dispersion adhesive, where at least one of the substrates is a biodisintegrable polymer foil. At least 60% by weight of the polyurethane is composed of diisocyanates, polyesterdiols, and at least one bifunctional carboxylic acid selected from dihydroxycarboxylic acids and diaminocarboxylic acids.
摘要:
The present invention relates to the use of meltable acrylate polymers for producing contact adhesive layers in resealable packagings. Moreover, the invention relates to multiple-layer films which have a contact adhesive layer on the basis of meltable acrylate polymers, to a method for producing said multiple-layer films, and to the use of said multiple-layer films for producing resealable packagings.
摘要:
A method for producing biodisintegratable composite foils with an aqueous polyurethane dispersion adhesive. The method involves adhesive-bonding a first substrate to a second substrate with use of the aqueous polyurethane dispersion adhesive. At least one of the first substrate and the second substrate is made of a biodisintegratable polymer foil, and at least 60% by weight of the polyurethane contains diisocyanates, polyesterdiols, and bifunctional carboxylic acids. The bifunctional carboxylic acids are dihydroxycarboxylic acids or diaminocarboxylic acids.
摘要:
An adhesive film which comprises at least two continuous polymer phases A and B each formed from a polymer or polymer mixture A (polymer A for short) and a polymer or polymer mixture B (polymer B for short) and which is obtainable by filming at least one of the polymers, A or B, initially in the form of an aqueous polymer dispersion.
摘要:
The present invention relates to microcapsules comprising a capsule core comprising a lipophilic substance and also at least one compound which absorbs electromagnetic radiation from the wavelength range from 700 nm to 1 m, and a capsule wall synthesized from40 to 80% by weight of one or more monomers (monomers I) selected from C1-C24 alkyl esters of acrylic and/or methacrylic acid, acrylic acid, methacrylic acid, and maleic acid,20 to 60% by weight of one or more di- or polyfunctional monomers (monomers II) which are sparingly soluble or insoluble in water, and0 to 40% by weight of one or more other monomers (monomers III), based in each case on the total weight of the monomers,and also to microcapsules comprising at least one epoxy tackifier resin and if desired a compound which absorbs electromagnetic radiation from the wavelength range from 700 nm to 1 m, to a process for preparing them, to their use in pressure sensitive adhesives, and also to a method of adhesively bonding at least two substrates.
摘要:
The present invention relates to the use of meltable acrylate polymers for producing contact adhesive layers in resealable packagings. Moreover, the invention relates to multiple-layer films which have a contact adhesive layer on the basis of meltable acrylate polymers, to a method for producing said multiple-layer films, and to the use of said multiple-layer films for producing resealable packagings.
摘要:
A multilayer laminate is composed of a) a backing, b) a pressure-sensitive adhesive layer applied directly to the backing, and c) a wax layer applied directly to the pressure-sensitive adhesive layer.
摘要:
Described is a pressure-sensitive adhesive (PSA) polymer formed from (i) 50%-95% by weight of n-butyl acrylate, (ii) 1%-20% by weight of ethyl acrylate, (iii) 1%-20% by weight of vinyl acetate, (iv) 0.1%-5% by weight of at least one ethylenically unsaturated acid or ethylenically unsaturated acid anhydride, and (v) 0% to 30% by weight of other ethylenically unsaturated compounds different from the monomers (i) to (iv). The PSA polymer can be used for producing self-adhesive articles, more particularly paper labels or film labels.
摘要:
An adhesive is described, in particular for applications on substrate materials made of flexible PVC, comprising a polymer which is obtainable via free-radical polymerization of ethylenically unsaturated compounds and which is composed of at least 50% by weight of soft acrylate monomers with glass transition temperature below 0° C., at least 1% by weight of ethylenically unsaturated nitriles, at least 1% by weight of hard acrylate monomers with glass transition temperature of at least 60° C., at least 0.1% by weight of ethylenically unsaturated acid monomers, and at least 0.01% by weight of monomers having at least two non-conjugated, polymerizable vinyl groups, where the polymerization reaction takes place via staged polymerization, and at least one portion of the soft acrylate monomers is polymerized in a first polymerization stage, and at least one portion of the hard acrylate monomers is polymerized in a second or subsequent polymerization stage. Uses of the adhesive for the bonding of substrates made of flexible PVC are also described, as also are self-adhesive items with a PVC foil as substrate material and with a coating of the adhesive of the invention.
摘要:
A multilayer laminate composed of at least a) a backing, b) a pressure-sensitive adhesive layer, and c) a sealable layer, the pressure-sensitive adhesive layer being located between the backing and the sealable layer, and wherein the pressure-sensitive adhesive comprises a polymeric binder having a glass transition temperature of −60 to −0° C. and a gel content of less than 50% by weight (and referred to below for short as adhesive polymer).