EP3055131A1 - Film à perméabilité à la vapeur d'eau réglable - Google Patents

Film à perméabilité à la vapeur d'eau réglable

Info

Publication number
EP3055131A1
EP3055131A1 EP14784000.3A EP14784000A EP3055131A1 EP 3055131 A1 EP3055131 A1 EP 3055131A1 EP 14784000 A EP14784000 A EP 14784000A EP 3055131 A1 EP3055131 A1 EP 3055131A1
Authority
EP
European Patent Office
Prior art keywords
breathable film
water vapor
copolymers
film
film according
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.)
Withdrawn
Application number
EP14784000.3A
Other languages
German (de)
English (en)
Inventor
Siegfried Schmitzer
Michael Schuhmann
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.)
Loparex Germany GmbH and Co KG
Original Assignee
Infiana Germany GmbH and Co KG
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 Infiana Germany GmbH and Co KG filed Critical Infiana Germany GmbH and Co KG
Publication of EP3055131A1 publication Critical patent/EP3055131A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • C09J7/29—Laminated material
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
    • A61L15/225—Mixtures of macromolecular compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • 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
    • C09J7/22—Plastics; Metallised plastics
    • C09J7/25—Plastics; Metallised plastics based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • B32B2307/7246—Water vapor barrier
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
    • C08J2377/06—Polyamides derived from polyamines and polycarboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2431/00—Characterised by the use of 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 an acyloxy radical of a saturated carboxylic acid, or carbonic acid, or of a haloformic acid
    • C08J2431/02—Characterised by the use of omopolymers or copolymers of esters of monocarboxylic acids
    • C08J2431/04—Homopolymers or copolymers of vinyl acetate
    • 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
    • C09J2421/00—Presence of unspecified rubber
    • 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
    • C09J2433/00—Presence of (meth)acrylic polymer
    • 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
    • C09J2453/00—Presence of block copolymer
    • C09J2453/006—Presence of block copolymer in the substrate
    • 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
    • C09J2475/00—Presence of polyurethane
    • 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
    • C09J2483/00—Presence of polysiloxane

Definitions

  • the present invention relates to an aqueous liquid, preferably water, repellent, single-layer or multi-layer, breathable film having a water vapor permeability of 20 to> 3000 g / m 2 -24 h (at 23 ° C, 100% humidity and film thickness: 75 ⁇ ) measured according to ASTMF-1249, comprising at least one layer based on a polymer mixture
  • At least one polyamide block and at least one polyalkylene oxide block having a water vapor permeability of at least 1200 g / m 2 -24h (at 23 ° C, 100% relative humidity and film thickness: 75 pm) measured according to AST F-1249 and
  • thermoplastic at least one thermoplastic, the water vapor permeability of the breathable film-regulating polymer, having a water absorption of ⁇ 2 wt.%. as well as the use of such films as large-area web material, preferably as roof underlays, or a component of roof liners, for the production of adhesive tapes, preferably adhesive tapes used in the construction sector, as constituent, preferably support layer, of patches of any kind or as constituent, preferably as liquid-impermeable protective film , of hygiene products or incontinence products.
  • Such films are part of the hygiene sector for diapers or incontinence products or in the construction sector a building envelope or for the production of adhesive tapes, which are used for example for bonding foils or plates in the field of a building envelope used.
  • liquid-repellent, or liquid-impermeable, breathable films preferably as protective films, in particular
  • films are often mounted in the form of a large-scale web material as so-called “windproof” or "raincoat”. Such covers are usually above the insulation layer and below the actual roofing or
  • Outer layer e.g. made of bricks, fiber cement panels or the like arranged.
  • these cover sheets are laid overlapping, with at least the resulting joints are glued with one-sided adhesive tapes.
  • these covers i.
  • the large-area web material, as well as the tapes are also water vapor permeable at the same time to ensure the moisture transport from the inside of the house to the outside, and so as to prevent the risk of mildew mold and rot.
  • adhesive tapes in particular with a directed
  • breathable, multi-layered films tend to delaminate, resulting in leaks, e.g. in Dachunterhüllen, can come.
  • the object of the present invention was therefore to provide a breathable, aqueous liquids, preferably water, repellent film which ensures excellent handling and lasting quality and whose water vapor permeability can be adjusted according to the requirements of the particular intended use.
  • this object is achieved by providing a water-repellent, single-layered or multi-layered, breathable film which has a water vapor permeability of from 20 to> 3000 g / m 2 -24 h (at 23 ° C.). 100% relative humidity and film thickness: 75 ⁇ m) measured according to ASTM F-1249, comprising at least one layer based on a polymer mixture
  • thermoplastic at least one thermoplastic, the water vapor permeability of the breathable film-regulating polymer having a water absorption of .s 2% by weight, and optionally conventional excipients, dissolved.
  • Block copolymers of polyamide blocks and polyalkylene oxide blocks are known.
  • hydrophilicity of the present invention used block copolymers is determined by the method described below, by the
  • Water absorbency of a film from the respective block copolymers is determined gravimetrically.
  • hydrophilic block copolymers which are suitable according to the invention preferably have a higher, preferably at least 10% higher, preferably one to 30% higher water absorption than corresponding, hydrophobic block copolymers.
  • Their water absorption measured by the method indicated above, is 0% by weight to at most 2% by weight.
  • a suitable hydrophilic block copolymer A) as a film having a thickness of 75 ⁇ m has a water absorption of at least 10% by weight, more preferably .2 20% by weight, more preferably at least 24% by weight, most preferably up to 30% by weight .% at a storage of 72 h in water of 23 ° C after drying of the surfaces of the film and gravimetric determination of the change in weight on.
  • the hydrophilic block copolymer A) has a water vapor permeability of at least 1200 g / m 2 -24h, more preferably at least 1500 g / m 2 -24h, even more preferably at least 2000 g / m 2 -24h, and most preferably at least 2500 -> 3000 g / m 2 -24h (at 23 ° C, 100% relative humidity and film thickness: 75 pm) measured according to ASTM F-1249.
  • hydrophilic block copolymers A) according to the invention hydrophilic block copolymers of at least one polyamide block and at least one
  • Polyalkylene oxide block used.
  • polyalkylene oxide blocks at least one polyalkylene oxide or
  • Alkylenoxidcopolymer selected from the group comprising poly-C 2 to C 4 - alkylene oxides are preferably polyethylene oxide, polypropylene oxide, polybutylene oxide, and copolymers thereof, more preferably polyethylene oxide used.
  • the molecular weight of a polyalkylene oxide block is preferably from 200 to 3,000 g / mol.
  • the hydrophilic block copolymer A) contains at least one polyalkylene oxide block of C 2 - to C 4 -alkylene oxides, preferably of ethylene oxide, propylene oxide and / or butylene oxide.
  • the hydrophilic block copolymer A) contains more than one polyalkylene oxide block, more preferably more than two, even more preferably 2.5, or up to 10 polyalkylene oxide blocks, all of them
  • Polyalkylene oxide blocks are preferably composed of the same alkylene oxide.
  • the hydrophilic block copolymers A) used according to the invention have at least one polyamide block of a polyamide homopolymer or polyamide copolymers.
  • the polyamides (PA) and copolyamides (CoPA) are aliphatic, partially aromatic or aromatic, wherein the molecular weight of a polyamide block is preferably 600 to 5,000 g / mol.
  • the melting point of the polyamide component is in the range of 160 to 240 ° C, more preferably 170 to 220 ° C.
  • the polyamide block consists of a polyamide or copolyamide of diamines such as aliphatic diamines having 2-10 carbon atoms, in particular hexamethylenediamine, and / or aromatic diamines having 6-10 carbon atoms, in particular p-phenylenediamine, and from dicarboxylic acids such as aliphatic or aromatic dicarboxylic acids 6-14 carbon atoms, in particular
  • homo- or copolyamides can be prepared from lactams with 4-10 carbon atoms, such as from ⁇ -caprolactam. Coming used according to the invention
  • Polyamides are preferably selected from the group comprising PA-6, PA-6,6, PA-6,9, PA-6,10, PA-6,12, PA-6,14, PA-6,18, PA- 9,6, PA-11, PA-12, PA-6I, PA-6T, with PA-6 and PA-12 being particularly preferred.
  • the hydrophilic block copolymer A) comprises at least one polyamide block of an aliphatic polyamide selected from the group comprising PA-6, PA-6,6, PA-6,9, PA-6,10, PA- 6,12, PA-6,14, PA-6,18, PA-9,6, PA-1 1 and PA-12, having a molecular weight of the PA block of 600 to 5,000 g / mol.
  • the hydrophilic block copolymer A) has more than one polyamide block, more preferably more than two, even more preferably more than 5 to 10 polyamide blocks, wherein the polyamide blocks preferably from the same aliphatic homo-polyamide or Co-polyamide exist.
  • the hydrophilic block copolymer A) contains more than one polyamide block and more than one polyalkylene oxide block, wherein preferably the polyamide blocks are made of the same homo-polyamide or co-polyamide and the polyalkylene oxide blocks each composed of the same alkylene oxide are.
  • the hydrophilic block copolymer A) has a polyamide content of at least 50% by weight, preferably from 50 to 90% by weight, based on the total weight of the hydrophilic block copolymer A).
  • hydrophilic block copolymer A The preparation of the hydrophilic block copolymer A) is known and is preferably carried out by copolycondensation of at least one polyamide block having terminal reactive groups with at least one polyalkylene oxide block having terminal reactive groups, wherein ester or amide groups as
  • the film has at least one thermoplastic
  • the thermoplastic polymer B regulating the water vapor permeability of the polymer component A preferably has a lower, preferably at least 10%, more preferably at least 20%, very particularly preferably around 30%, compared to the hydrophilic block copolymer A).
  • the water absorption of the polymer B should be 0 wt% to at most 2 wt%, preferably to at most 1.5 wt%, more preferably 0 wt% to ⁇ 1 wt%.
  • the water vapor permeability regulating polymers B) are at least one polymer selected from the group comprising polyolefins, preferably polyethylenes such as LDPE, LLDPE, m-PE, HDPE, or polypropylenes, most preferably LDPE, olefin copolymers, preferably propylene / Ethylene copolymers, polyvinyl alcohols, ethylene / inylalcohol copolymers, olefin / inylester copolymers, preferably ethylene / inylester copolymers, more preferably ethylene / inylacetate copolymers, lactic acid homo- and - copolymers, preferably polylactides, polyhydroxyalkanoates, (alkyl) ( meth) acrylate homopolymers and copolymers, preferably ethylene / butyl acrylate copolymers,
  • Ethylene / norbornene copolymers thermoplastic starch, polystyrenes, styrene (block) copolymers, preferably styrene / butadiene block copolymers, styrene / isoprene block copolymers, styrene / acrylonitrile copolymers, acrylonitrile / butadiene / styrene copolymers, block copolymers of at least one polyamide block and a polyalkylene oxide block having a water absorption, determined by the above-mentioned method, which is at least ⁇ 2% by weight, preferably 0% by weight to ⁇ 1% by weight, and mixtures of at least two of said polymers, in an amount of at least 10 wt .-% based on the total weight of the mixture of the polymer components A) and B).
  • block copolymers preferably styrene / butadiene block copolymers
  • thermoplastic olefin homo or copolymer more preferably a polyethylene, in particular LDPE, or a
  • Ethylene copolymer more preferably an ethylene A / inyl acetate copolymer.
  • the proportion of the hydrophilic block copolymer A) in the mixture is at least 30 wt .-%, more preferably from 40 to 90 wt .-%, particularly preferably from 40 to 65 wt .-%, or preferably from 65 to 90 wt.%, Particularly preferably from 75 to 85 wt .-%, based on the
  • the breathable film of the present invention is based on a blend containing at least 10% by weight, more preferably at least 15% by weight, most preferably at least 20% by weight, of the thermoplastic
  • the proportion of the polymer B) is in the range of at most 70% by weight, more preferably from 10 to 60% by weight, particularly preferably from 35 to 60% by weight, or preferably from 10 to 35% by weight preferably 15 to 25 wt.%, Based on the total weight of the mixture of the polymer components A) and B).
  • the mixing ratio of the hydrophilic block copolymer A) defined according to the invention to the polymers B it is possible to set the desired water vapor permeability of a breathable film according to the invention.
  • a multilayer film according to the invention is to be produced, it is also possible according to the invention to provide a breathable film with a film
  • the breathable monolayer film of the invention is based on a polymer blend comprising from 40 to 90% by weight of at least one hydrophilic elastomeric block copolymer A) and from 10 to 60% by weight of at least one of thermoplastic polymers B) and optionally conventional excipients C), wherein the components A) to C) must always supplement to 100 wt .-%.
  • the breathable film according to the invention is based on a mixture of 40 to 65% by weight of at least one hydrophilic, elastomeric block copolymer A), from 35 to 60% by weight of at least one of said thermoplastic polymers B) and optionally from customary excipients C), wherein the components A) to C) must always supplement to 100 wt .-%.
  • the breathable film of the invention is based on a mixture of 65 to 90 wt .-% of at least one hydrophilic elastomeric block copolymer A) and from 10 to 35 wt .-% of at least one thermoplastic polymer B) and optionally from usual
  • Excipients C wherein the components A) to C) always have to supplement to 100 wt .-%.
  • the breathable film according to the invention may optionally contain one or more conventional adjuvants C), such as UV stabilizers, antiblocking agents, pigments, antistatic agents, antimicrobial agents, primers for improving an adhesive anchoring, processing aids, lubricants, antifogging additives and / or dyes in the usual amounts ,
  • adjuvants C such as UV stabilizers, antiblocking agents, pigments, antistatic agents, antimicrobial agents, primers for improving an adhesive anchoring, processing aids, lubricants, antifogging additives and / or dyes in the usual amounts ,
  • the breathable film of the invention can be prepared by known, preferably continuous processes, such. B. by extrusion, preferably by blown film extrusion, in the form of a film tube, or produced by a cast-extrusion process as a flat film. These methods are familiar and familiar to the person skilled in the art.
  • the film according to the invention is produced in the form of an extruded film tube.
  • the extruded film may preferably have an inflation ratio of at least 1: 1, particularly preferably of at least 1.5: 1, very particularly preferably of at least 2: 1.
  • the preferably extruded film tube can become a flattened, possibly
  • the film according to the invention can also be produced by a cast-extrusion process.
  • the film of the invention may also be at least monoaxially stretched at a ratio of at least 1: 1, 5, more preferably at least 1: 2, more preferably 1: 2 to 1: 4, or biaxially stretched, the ratio of longitudinal to transverse stretching preferably at least 1: 1, more preferably at least 1, 1: 1 and most preferably at least 1, 2: 1.
  • the stretched film according to the invention can be fixed after stretching by a corresponding temperature control.
  • the breathable film of the invention may be single or multi-layered.
  • the breathable film according to the invention is preferably one-layered.
  • the individual layers may have the same or a different composition of the polymer components A) and B) and thus a different water vapor permeability, so that a multilayer, asymmetrically constructed film with a directional water vapor permeability are obtained according to the application can.
  • the breathable film according to the invention is at least two-layered, more preferably at least three-layered, wherein the Mixing ratio of the hydrophilic block copolymer A) to the polymer B) in the individual layers is chosen so that the individual layers
  • the water vapor permeability increases or decreases from layer to layer, starting from a surface layer up to the second surface layer of the layer
  • an inner layer may each adjoin a layer having a higher water vapor permeability and a layer having a lower water vapor permeability.
  • Multilayer films according to the invention may also be prepared by coextrusion as described above.
  • the thickness of the breathable film according to the invention is preferably in the range of 20 to 300 .mu.m, more preferably 30 to 200 ⁇ , wherein the thickness of the film may vary depending on the application.
  • the water vapor permeability of the breathable film of this invention is not due to mechanical processing of the film, such as through perforation or other measures that result in micropores is based only on the use of the mixture according to the invention
  • the film according to the invention therefore has no porosity such as micropores.
  • the breathable film of the present invention has a water vapor permeability measured according to ASTM F-1249 of 20 to> 3000 g / m 2 -24 h (at 23 ° C and 100% relative humidity, film thickness: 75 pm) depending on the field of application.
  • the breathable, preferably monolayer film according to the invention has a water vapor permeability measured according to ASTM F-1249 of 20 to 2000 g / m 2 -24 h, preferably 80 to 1500 g / m 2 -24 h, particularly preferably 100 to 1000 g / m 2 -24 h (at 23 ° C and 100% relative humidity, film thickness: 75 pm) on.
  • Breathable films according to the invention having these water vapor permeability values are particularly suitable for the production of roof underlays or roof liners, or for the production of adhesive tapes, preferably of adhesive tapes used in the construction sector.
  • Another object of the present invention therefore also relates to
  • a breathable film according to the invention with the specified water vapor permeability as a carrier layer of an adhesive tape, preferably an adhesive tape used in the construction sector.
  • Such adhesive tapes according to the invention consist of the breathable film according to the invention as a carrier film, an adhesive layer, optionally an interposed scrim, preferably of viscose fibers, polyester or polyester Polypropylene fibers, and optionally arranged over the adhesive layer, removable protective film.
  • the adhesive layer is preferably based on adhesives
  • acrylate adhesives may preferably be applied to the support layer either as a dispersion or as to be crosslinked by UV radiation
  • Hot melt adhesives are applied. Other types of application are also possible.
  • the adhesive layer on other types of adhesive such as adhesives based on synthetic rubber, such as styrene-isoprene-styrene copolymers or styrene-butadiene copolymers, or adhesives based on silicone or polyurethane based.
  • the adhesive layer is based on at least one adhesive selected from the group consisting of adhesives based on
  • Polyacrylates of acrylate copolymers, synthetic rubber-based adhesives, preferably based on styrene-isoprene-styrene copolymers or styrene-butadiene copolymers, polysilicone-based adhesives, polyurethanes-based adhesives and mixtures of at least two of said adhesives.
  • a scrim may be incorporated between the carrier film and the adhesive layer or within the adhesive layer.
  • the Gittergelege may consist of an optionally woven, fibrous material.
  • the scrim is preferably made of viscose fibers, Polyester fibers such as PET fibers, polypropylene fibers or a mixture thereof.
  • the film according to the invention as a carrier layer for an adhesive tape particularly preferably has a water vapor permeability of at least 20 g / m 2 -24 h, preferably from 30 to 300 g / m 2 -24 h, more preferably from 50 to 200 g / m 2 -24 h according to ASTM F-1249 (at 23 ° C, 100% relative humidity, film thickness: 75 ⁇ ) on.
  • the adhesive tapes according to the invention consisting of the breathable film according to the invention as a carrier layer, an adhesive layer and the scrim, a water vapor diffusion equivalent air layer thickness s d of at most 12 m, more preferably at most 10 m, more preferably at most 8 m and most preferably at most 5 m measured according to DIN 52615, on.
  • removable protective film As a disposed on the adhesive layer, removable protective film can
  • a one- or two-sided siliconized paper or a plastic film can be used.
  • the outside of the carrier film can also be a
  • Silicone coating which serves as a protective film, so that the
  • the carrier film of the adhesive tape of the invention may also be multi-layered, preferably at least two-layered, wherein the layers may have the same or a different composition and thus different water vapor permeabilities.
  • the layers may have the same or a different composition and thus different water vapor permeabilities.
  • Water vapor permeability of the adhesive tape can thus be improved and the anchoring of the adhesive layer.
  • Adhesive tape at least two layers, wherein the layers may have a different composition and thus different water vapor permeabilities.
  • Another object of the present invention relates to the use of the breathable film according to the invention as a large-area sheet material, preferably in the construction sector, particularly preferably as a roof underlay or as part of roof liners.
  • roof underlay sheet is understood according to the invention a large-area sheet material, which is arranged on a house roof below the actual roofing or outer layer and above the insulating layer.
  • roof underbody refers inventively a shell of glued preferably with adhesive tapes roof underlays of a house roof, which is located below the actual roofing or outer layer and above the insulating layer.
  • roof underlay sheet according to the invention comprising at least one inventive,
  • breathable film and optionally at least one nonwoven layer, preferably a nonwoven layer of polyethylene, polyester or polypropylene fibers.
  • the breathable film of the present invention may be extruded or laminated on the nonwoven layer, and the film of the present invention may have a nonwoven layer only on one side or on both sides.
  • the nonwoven layer may be a synthetic or natural nonwoven fabric. More preferably, the nonwoven fabric is based on polyethylene, polyester or polypropylene fibers or other thermoplastic fibers.
  • the breathable film of the invention has a
  • the roof underlay sheet according to the invention has a
  • Another object of the invention relates to an inventive
  • Roof underlay consisting of inventive roof underlays, which are preferably connected to adhesive tapes according to the invention.
  • these roof liners may also have a directional water vapor permeability, due to an asymmetric, multilayer structure of the roof underlay membrane according to the invention and of the roof liner
  • the breathable film according to the invention has a water vapor permeability measured according to ASTM F-1249 of at least 500 g / m 2 -24 h, preferably of at least 1000 g / m 2 -24 h and particularly preferably of at least 1500 to> 3000 g / m 2 -24 h (at 23 ° C and 100% relative humidity, film thickness: 75 pm).
  • Such breathable films are particularly useful as protective films
  • laundry protective films for hygiene products, in particular for
  • the breathable films according to the invention are also suitable as carrier films which are remote from the skin.
  • carrier films should preferably be breathable, ie water vapor permeable, so that it comes with a longer wearing of the patch to a sufficient removal of water vapor by
  • Hygiene product, or incontinence product, to protect the laundry is present.
  • Such protective films must also be breathable in order to sufficiently quickly transport water vapor released from the body by perspiration into the external environment.
  • such breathable protective films have a
  • Another object of the present invention is therefore the use of a breathable film according to the invention with these specified
  • Water vapor permeability values as a carrier layer for plasters, in particular wound plasters, or as water-impermeable, but breathable protective films of hygiene products, in particular sanitary napkins, or incontinence products.
  • a further subject of the present invention is therefore also a plaster having an outer carrier layer of a breathable film according to the invention with a water vapor permeability specified above.
  • Another object of the present invention are therefore also.
  • Hygiene products in particular sanitary napkins, or incontinence products with a breathable film according to the invention as a side facing away from the body side protective film, preferably laundry protective film, wherein such a protective film has the specified for this purpose water vapor permeability.
  • a single-layer film of 75 ⁇ m thickness was prepared from the respective blend by the blown extrusion process, of which the water vapor permeability was determined according to ASTM F-1249 at 23 ° C and 100% relative humidity in a Permatran W-Twin an infrared sensor by detecting the by the respective pattern of the so

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Hematology (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Laminated Bodies (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

L'invention porte sur un film hydrophobe, respirant, à base d'un mélange de polymères composé de A) au moins un copolymère à blocs élastomère, hydrophile, composé d'au moins un bloc polyamide et d'au moins un bloc poly(oxyde d'alkylène) et B) au moins un polymère thermoplastique qui règle la perméabilité à la vapeur d'eau du film respirant. Ce dernier présente une absorption d'eau ≤ 2 en poids.
EP14784000.3A 2013-10-08 2014-10-02 Film à perméabilité à la vapeur d'eau réglable Withdrawn EP3055131A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013016583.0A DE102013016583A1 (de) 2013-10-08 2013-10-08 Film mit einstellbarer Wasserdampfdurchlässigkeit
PCT/EP2014/002695 WO2015051898A1 (fr) 2013-10-08 2014-10-02 Film à perméabilité à la vapeur d'eau réglable

Publications (1)

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EP3055131A1 true EP3055131A1 (fr) 2016-08-17

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EP14784000.3A Withdrawn EP3055131A1 (fr) 2013-10-08 2014-10-02 Film à perméabilité à la vapeur d'eau réglable

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US (1) US10435525B2 (fr)
EP (1) EP3055131A1 (fr)
BR (1) BR112016007250A2 (fr)
CA (1) CA2925227A1 (fr)
DE (1) DE102013016583A1 (fr)
WO (1) WO2015051898A1 (fr)

Families Citing this family (10)

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US11939477B2 (en) 2014-01-30 2024-03-26 Monolith Materials, Inc. High temperature heat integration method of making carbon black
US10370539B2 (en) 2014-01-30 2019-08-06 Monolith Materials, Inc. System for high temperature chemical processing
EP2963177A1 (fr) * 2014-07-04 2016-01-06 Danapak Flexibles A/S Feuille d'emballage pour emballer du fromage, procédés de fabrication et d'emballage associés
US10618026B2 (en) 2015-02-03 2020-04-14 Monolith Materials, Inc. Regenerative cooling method and apparatus
DE102015112206A1 (de) * 2015-07-27 2017-02-02 Infiana Germany Gmbh & Co. Kg Montageklebeband und Verwendung des Montageklebebandes für die Druckindustrie
WO2017190015A1 (fr) 2016-04-29 2017-11-02 Monolith Materials, Inc. Procédé et appareil de gougeage au chalumeau
CA3055830A1 (fr) 2017-03-08 2018-09-13 Monolith Materials, Inc. Systemes et procedes de production de particules de carbone a l'aide un gaz de transfert thermique
FR3073851B1 (fr) * 2017-11-17 2019-11-08 Arkema France Film imper-respirant souple et etirable a base de copolymere a blocs
CA3099288A1 (fr) 2018-05-11 2019-11-14 Owens Corning Intellectual Capital, Llc Feuille respirante renforcee
CN116942881B (zh) * 2023-06-25 2024-01-30 广东美登新材料科技有限公司 一种一次性尿隔垫的吸收体及其制备方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5888597A (en) * 1995-04-11 1999-03-30 Elf Atochem S.A. Packaging based on a polymer containing polyamide blocks and polyether blocks, for conserving fresh produce

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ239723A (en) * 1990-09-18 1993-06-25 Chicopee Blends comprising a hydrophilic block poly (ether-co-amide) and a hydrophobic polymer
EP0657502A1 (fr) * 1993-12-13 1995-06-14 Du Pont De Nemours International S.A. Composition thermoplastique contenant un agent compatibilisant
DE4410921C2 (de) 1994-03-29 1996-12-19 Atochem Elf Deutschland Polymermischung und deren Verwendung
FR2721320B1 (fr) 1994-06-20 1996-08-14 Atochem Elf Sa Film imper-respirant.
DE10018937A1 (de) * 2000-04-17 2001-10-18 Bayer Ag Verwendung von Polyetheresteramiden zur Herstellung von dünnen Folien
WO2005030860A1 (fr) * 2003-09-22 2005-04-07 Dow Global Technologies Inc. Compositions polymeres de formation de films et films associes, substrats revetus et structures laminees possedant une permeabilite a l'humidite differentielle
US8309211B2 (en) * 2003-11-06 2012-11-13 Building Materials Investment Corporation Breathable non-asphaltic roofing underlayment
EP2721092B1 (fr) 2011-04-12 2020-12-02 Arkema Inc. Films multicouches respirants

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5888597A (en) * 1995-04-11 1999-03-30 Elf Atochem S.A. Packaging based on a polymer containing polyamide blocks and polyether blocks, for conserving fresh produce

Also Published As

Publication number Publication date
BR112016007250A2 (pt) 2017-08-01
US20160229966A1 (en) 2016-08-11
CA2925227A1 (fr) 2015-04-16
US10435525B2 (en) 2019-10-08
WO2015051898A1 (fr) 2015-04-16
DE102013016583A1 (de) 2015-04-09

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