WO2002057385A1 - Adhesif sensible a la pression hydro-desintegrable et procede pour sa fabrication - Google Patents
Adhesif sensible a la pression hydro-desintegrable et procede pour sa fabrication Download PDFInfo
- Publication number
- WO2002057385A1 WO2002057385A1 PCT/FR2002/000183 FR0200183W WO02057385A1 WO 2002057385 A1 WO2002057385 A1 WO 2002057385A1 FR 0200183 W FR0200183 W FR 0200183W WO 02057385 A1 WO02057385 A1 WO 02057385A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- water
- composition according
- weight
- soluble
- monomer
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F271/00—Macromolecular compounds obtained by polymerising monomers on to polymers of nitrogen-containing monomers as defined in group C08F26/00
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F265/00—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
- C08F265/04—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00 on to polymers of esters
-
- 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
- C09J133/04—Homopolymers or copolymers of esters
- C09J133/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
-
- 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
- C09J151/00—Adhesives based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers
- C09J151/003—Adhesives based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers grafted on to macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds
Definitions
- the present invention relates to the field of water-disintegrable pressure-sensitive adhesives.
- water-soluble adhesives were manufactured exclusively on the basis of polymers of natural origin, whether chemically modified or not. These polymers such as starch and casein have, however, drawbacks such as their high cost, the variability of the properties linked to products of animal or vegetable origin, their poor aging, etc.
- These drawbacks have justified the development of synthetic substitutes performing similar functions at lower cost.
- These substitutes are generally polymers obtained from acrylic monomers or copolymers comprising acrylic monomers.
- Patent application WO 99/19415 describes pressure-sensitive adhesives (called “pressure sensitive adhesives” or PSA) disintegrable based on latex particles of size less than 200 microns.
- PSA pressure sensitive adhesives
- These adhesives therefore comprise an acrylic copolymer latex, preferably obtained by emulsion polymerization of at least one alkyl acrylate, at least one vinyl ester or styrenic monomer, at least one C 3 carboxylic acid. to C5 polymerizable, and at least one alkyl methacrylate.
- the process for obtaining these adhesives can be carried out by sequential polymerization. It involves the use of at least one, and preferably several, surfactants.
- US Patent 5,536,800 describes pressure-sensitive adhesives dispersible in water obtained by polymerization of alkyl acrylates and of a mixture of acrylic acid and oleophilic unsaturated carboxylic acid. These adhesives are also obtained by emulsion polymerization in the presence of surfactants.
- Pressure-sensitive adhesives are generally obtained by processes of the radical emulsion polymerization type, which lead to aqueous colloidal dispersions called latex.
- surfactants is a generally necessary condition. These surfactants can provide a function, for example, improving the disintegration capacity in an aqueous medium. They are however detrimental to the final properties of the adhesives.
- Emulsion polymerization processes can involve one or more steps with initial loading of all the monomers or continuous addition during the polymerization.
- the object of the invention is therefore to propose compositions of water-disintegratable pressure-sensitive adhesives which do not have the drawbacks of the prior art mentioned above.
- a first object of the invention relates to pressure-sensitive and hydro-disintegrable adhesive compositions.
- a first embodiment of the invention is a composition of single-phase, translucent or transparent polymer adhesive.
- a second embodiment of the invention is a most often opaque two-phase polymer adhesive composition.
- adhesive compositions according to the invention can be in the form of an aqueous dispersion but also in that of a solid adhesive.
- the solid adhesive is advantageously placed in the form of films on a non-adhesive support ready to be transferred to the surfaces to be bonded.
- the films obtained from two-phase adhesives have particularly advantageous mechanical properties.
- Another subject of the invention relates to a process for manufacturing the compositions according to the invention in one or two polymerization stages. In particular, this process does not require the use of surfactants. Yet another object of the invention is the dispersion obtained by the manufacturing process. Other objects of the invention finally relate to the use of the compositions according to the invention as an adhesive, especially in the form of a film or as an additive for adhesives.
- the pressure-sensitive adhesives according to the invention are based on the particular property which certain water-soluble polymers of high molecular mass, ie greater than 30,000 Daltons, have of having a rigid / flexible mechanical transition, accompanied by a non-mechanical transition. sticky / sticky when they go from dry to plasticized by small amounts of water from the ambient air.
- the resulting cationic polymer plays the role of activator or trigger of the adhesive properties.
- the adhesive composition according to the invention comprises: i) a high molecular weight polymer comprising: a) 10 to 100%, preferably 30 to 100% by weight relative to the total weight of monomers of at least one unsaturated monomer water-soluble cationic; b) 0 to 90% by weight relative to the total weight of monomers of at least one water-soluble non-cationic unsaturated monomer; and c) 0 to 50% by weight relative to the total weight of monomers of at least one non-water-soluble unsaturated monomer; and ii) 0.1 to 20%, preferably 1 to 10% by weight of water relative to the weight of the polymer.
- water-soluble monomer means a monomer which is soluble at least 100 g / 1 in water at 25 ° C. The predominant use of cationic monomer is particularly preferred.
- a suitable water-soluble cationic unsaturated monomer is, for example, a (meth) acryloalkyltrialkylammonium salt of the following formula:
- R 1 is C 1 to C 6 , preferably C 2 to C alkyl
- R 2, equal or different are alkyl to C 6
- X is a monovalent anion, preferably a halide.
- R1 is methyl, ethyl, propyl, isopropyl or butyl.
- the groups R 2 which may be identical or different, are preferably methyl, ethyl, propyl or isopropyl.
- the anion X is preferably a chloride or a bromide. Particularly preferred are acryloethyltrimethylammonium chloride, methacryloethyltrimethylammonium chloride and mixtures thereof.
- Another water-soluble cationic unsaturated monomer suitable for carrying out the invention is a monomer carrying at least one protonable amino function.
- Such a monomer is described by the following formula:
- R 1 is C 1 -C 6 , preferably C 2 -C 4 alkyl
- R 2 identical or different, are C 1 to C 6 alkyls.
- it is N, N dimethyl (meth) acryloethylamine.
- the cationic monomer (s) can be copolymerized with water-soluble non-cationic unsaturated monomers with the advantage of allowing the control of the total cationicity of the adhesive (which makes it possible to control the uptake of moisture and the tackiness), and, optionally , lower raw material costs.
- a non-cationic water-soluble monomer can be an anionic or nonionic monomer.
- Preferred water-soluble non-cationic unsaturated monomers are acrylamide, acrylic acid, methacrylic acid, their water-soluble metal salts and mixtures thereof.
- the adhesive composition also contains one or more non-water-soluble unsaturated monomers. These monomers make it possible to regulate the hydrodispersibility of the adhesive and to improve its mechanical properties.
- non-water-soluble monomer means any monomer whose solubility is better in a non-polar medium than in water.
- one or more non-water-soluble unsaturated monomers are chosen from C 4 -C 20 alkyl acrylates and methacrylates, and styrene and its derivatives, vinyl acetate and their mixtures.
- the (co) polymer of the composition can be crosslinked using a crosslinker.
- the crosslinker makes it possible to improve the cohesion of the adhesive, in particular in the form of a film.
- At least one crosslinker is then added during the polymerization relative to the weight of monomers.
- Suitable crosslinkers are monomers having at least two double bonds or a reactive functional group and a double bond.
- trimethylolpropane triacrylate N, N-methylene-bis (meth) acrylamide, N-methylol (meth) acrylamide and (poly) ethylene glycol-dimethacrylate.
- non-polymerizable crosslinkers comprising at least two reactive groups capable of reacting with the chemical functions of the monomer units used for the synthesis of the polymer or copolymer can also be used.
- these are (poly) ethylene glycol-diglycidyl ether.
- the composition as described above further comprises 1 to 75%, preferably 25 to 65% by weight relative to the weight of the final polymer of a polymer comprising at least one unsaturated non-water-soluble monomer .
- This non-water-soluble polymer plays the role of filler within the final adhesive, making it possible to improve the mechanical properties of the system.
- the monomer (s) of this type are polymerized in the presence of the composition based on cationic polymers according to the invention, during a second polymerization step.
- These monomers can be chosen, for example, from monomers whose corresponding homopolymer has a glass transition temperature, Tg, greater than 30 ° C., such as methyl methacrylate, styrene and its derivatives, acrylonitrile and their mixtures.
- Tg glass transition temperature
- styrene and its derivatives such as methyl methacrylate, styrene and its derivatives, acrylonitrile and their mixtures.
- the compositions obtained according to this latter embodiment are then generally presented in biphasic form and are often opaque.
- non-water-soluble unsaturated monomers of Tg greater than 30 ° C. small proportions (0.1 to 10% by weight relative to the total of the water-soluble monomers of this second step), monomers unsaturated non-water-soluble functionalized, in particular carrying a hydroxyl or silane function. Indeed, these are likely to improve the adhesion between the two phases.
- monomers are for example glycidyl methacrylate, gamma-methacryloxy propyltrimethoxysilane or vinyl tri-isopropoxysilane.
- the unsaturated non-water-soluble monomer (s) polymerizes within the water-soluble cationic (co) polymer of the first phase to give rise to hydrophobic (co) polymer domains which constitute a phase different from the final polyphase system and which play the role of charges.
- the phases are arranged in a matrix-inclusions arrangement, the matrix of which consists of the above cationic polymer and the inclusions (fillers) comprise a non-water-soluble (co) polymer.
- These systems have reinforced mechanical resistance.
- FIG. 1 shows a photograph obtained by transmission electron microscopy with selective marking of the hydrophobic phase, produced on a film corresponding to this form of the invention.
- the hydrophobic polymer domains (black) dispersed in a matrix of the crosslinked hydrophilic cationic polymer (white) are distinguished.
- the adhesives can be obtained by a simple manufacturing process. Both types of adhesives (one or two phases) can be obtained by a radical polymerization process in one or two stages. Preferably, the methods are carried out in the absence of surfactants.
- the method of manufacturing adhesive compositions according to the invention, in a polymerization step, comprises the following operations: i) dissolving or dispersing in demineralized water the monomers a, b and c; optionally in the presence of an appropriate crosslinker; ii) polymerization of said solution or dispersion; and iii) adjustment of the water content.
- the solution or dispersion comprises 10 to 80% by weight of monomer.
- a bubbling of nitrogen is established in the reactor for 10 to 30 minutes before the polymerization.
- the polymerization temperature is advantageously between 5 and 90 ° C, preferably between 40 and 80 ° C.
- water-soluble radical initiators are used for the single-phase systems. Any initiation system by thermal decomposition, redox, photonic or other can be used as long as its decomposition kinetics is compatible with the polymerization temperature. 0.005 to 2%, and preferably 0.01 to 0.75% by weight of initiator relative to the weight of monomer is added.
- the water-soluble initiator is added in the form of an aqueous solution (at 0.5 to 2% by weight concentration in demineralized water). It can be added once the reactor is brought to or before reaction temperature.
- Suitable water-soluble radical initiators are, for example, sodium, potassium and ammonium persulfates, hydrogen peroxide, terbutyl hydroperoxide, salts of 4,4'-azo-bis (4-cyanopentanoic acid), 2,2'-azo-bis (2-amidinopropane) di-hydrochloride or redox persulfate / sodium methabisulfite, hydrogen peroxide / vitamin C, terbutyl hydroperoxide / erythorbic acid.
- the end of the polymerization reaction can be detected by returning to the target temperature after an exothermic peak or, under isothermal conditions, by extinguishing the cooling requirements.
- This usually lasts between 1 and 8 hours.
- "cooking” does not cause significant evaporation of water, it therefore takes place at T ⁇ 100 ° C. if the pressure is atmospheric.
- the product is then cooled and removed from the reactor for storage and property control. It is then in the form of a transparent or translucent solution or dispersion concentrated at 10 to 70% by weight of polymer.
- This solution or dispersion leads, after evaporation of the water, to a transparent or translucent single-phase film.
- this film In the dry state, this film is rigid and brittle, but it becomes flexible and adhesive after taking up a small amount of water from the ambient air.
- the adjustment of the water content is carried out by evaporation to complete dryness and recovery of water to the desired water content.
- the adhesive should have a final paste form and not a solid form.
- the first step is the synthesis of a water-soluble or water-disintegrable polymer phase.
- the second phase is polymerized in the presence of this phase.
- this composition it is also possible to obtain this composition by mixing the polymers prepared separately.
- the manufacturing process therefore also comprises, between steps ii) and iii), the steps of: iv) dissolving or dispersing in the product from step ii) from 1 to 75% by weight relative to the total weight of monomers of at least one non-water-soluble unsaturated monomer; and v) polymerization.
- a bubbling with nitrogen is established in the reactor before the reaction for a period ranging from 10 to 30 minutes.
- the polymerization temperature is advantageously between 5 and 90 ° C, preferably between 40 and 80 ° C.
- the polymerization initiator is preferably added in the form of a dilute solution, preferably at 0.5 to 2% by weight concentration.
- Water-soluble or liposoluble radical initiators can be used.
- part of the hydrophobic monomer can serve as a solvent.
- Any initiation system by thermal decomposition, redox, photonic or other can be used as long as its decomposition kinetics is compatible with the polymerization temperature.
- 0.005 to 2% and preferably 0.01 to 0.75% by weight of initiator are added relative to the weight of monomer. The initiator can be added once or before the reaction temperature.
- the same water-soluble radical initiators can be used as for the first polymerization step of the polymerization process.
- Liposoluble radical initiators can also be used, alone or in combination with one or more water-soluble initiators.
- organic peroxides such as benzoyl peroxide, azo compounds such as 2,2'-azo-bis-2-methylbutyronitrile and redox couples such as cumene hydroperoxide / thionyl chloride or mixed redox couples (water-soluble-fat-soluble) such as cumene hydroperoxide / sodium methabisulfite.
- the product is cooled and removed from the reactor for storage and property control. It then takes the form of a colloidal dispersion diffusing light ("latex"), analogous to what can be obtained by emulsion polymerization techniques, with a dry extract rate (polymer concentration) between 10 and 60%.
- latex colloidal dispersion diffusing light
- the manufacturing process according to the invention makes it possible to obtain aqueous dispersions of adhesive comprising little or no stabilizing surfactant.
- this film In the dry state, this film is rigid and brittle, but becomes flexible and adhesive after taking up less than 15% by weight, and more particularly, less than 10% by weight of water from the ambient air.
- the assemblies or bondings made with these adhesives exhibit very good aging behavior. They do not deteriorate over time and can be used to stick labels or other objects in conditions where existing pressure sensitive adhesives age poorly; this is particularly the case for bonding on slightly heated surfaces such as computer screens, televisions and other electrical or electronic devices or which may be exposed to alternating humidity.
- the adhesives according to the invention can be used for temporary or removable bonding on interior surfaces in fields as varied as decoration, labeling of electrical appliances or display, among others.
- the adhesive properties of the films are particularly resistant to aging and the assemblies made with these films can withstand humid atmospheres and heat. The assembly can be separated and any traces left on the support can be removed with a damp sponge, the sponge then rinsed with water.
- the adhesive composition according to the invention can be in the form of films. These films can advantageously be on a non-sticky transfer support. This makes it easier to apply the adhesive to the object to be bonded.
- the adhesive can be used for bonding any type of support, and more particularly metal, paper, glass, wood and plastic.
- the implementation of the adhesive can be done according to any of the known bonding methods for pressure-sensitive adhesives.
- they comprise the application of the composition according to the invention to one or both surfaces to be bonded, and the application of pressure to the assembly.
- composition according to the invention can also be envisaged to apply the composition according to the invention to one or both surfaces to be bonded, to adjust the water content to the desired water content, then to apply pressure on the assembly.
- the adhesives according to the invention can be used alone or as existing adhesive additives (whether or not they are pressure sensitive). Thus, they can be useful in all the applications in which hydro-disintegrating adhesives are recommended, such as wallpaper adhesives, adhesives for temporary coatings, adhesives for paper and packaging, adhesives for DIY and repairs, etc. The invention is described in more detail below.
- Synthesis of the hydro-disintegrable polymer for a single-phase adhesive 442 g of demineralized water are loaded into a polymerization reactor equipped with a double jacket allowing the circulation of a heat-transfer fluid to heat / cool the system, a tapping allowing the introduction of nitrogen gas to expel oxygen which inhibits the polymerization reaction, an agitator in the form of an anchor linked to a motor making it possible to rotate at variable speed, an inlet allowing the addition of additives a vapor outlet linked to a condensation / reflux system.
- 160 g of acryloethyltrimethylammonium chloride (ADAMQUAT MC80 from ATOFINA at 80% active material, 200 g of commercial product) are introduced into the reactor.
- the double jacket temperature of the reactor is brought to 30 ° C.
- the stirring speed is fixed at 400 revolutions per minute.
- a nitrogen sweep is applied for 15 minutes.
- the priming solution is injected into the reaction medium (0.325 g of potassium persulfate + 24.465 g of demineralized water).
- the jacket temperature is then brought to 75 ° C (tO).
- the temperature double jacket is brought to 80 ° C.
- the temperature of the reaction medium is brought to 85 ° C. for 3 hours.
- the temperature of the final aqueous solution is brought to 30 ° C.
- the reactor is then drained.
- the final dry extract, measured by gravimetry, of the solution (called solution 1) is 26.34% by weight.
- the double jacket temperature is raised to 80 ° C and the 2 nd portion of the initiator solution is injected into the reaction medium.
- the temperature of the reaction medium is brought to 85 ° C. for 3 hours.
- the temperature of the final product is brought to 30 ° C., the reactor is then drained.
- the final experimental dry extract, measured by gravimetry, is 19.63% by weight.
- the product is in the form of a colloidal dispersion with a milky appearance (called "latex 1").
- ADAMQUAT MC80 from ATOFINA at 80% of active material, 125
- NMBA N, N'-methylene-bis-acrylamide
- the double jacket temperature of the reactor is brought to 30 ° C.
- the stirring speed is fixed at 400 revolutions per minute.
- a nitrogen sweep is applied for 15 minutes.
- the priming solution is injected into the reaction medium (0.195 g of potassium persulfate + 20 g of demineralized water).
- the jacket temperature is then brought to 75 ° C (tO).
- the jacket temperature is brought to 80 ° C.
- the temperature of the reaction medium is brought to 85 ° C for 3 hours.
- the temperature of the final aqueous solution is brought to 30 ° C.
- the reactor is then drained.
- the final experimental dry extract, measured by gravimetry, of the solution (called solution 2) is 25% by weight.
- 351 g of demineralized water, 232 g of solution 2 (58 g of polymer) and 70 g of styrene are loaded into a polymerization reactor equipped as described in Example 1. The jacket temperature is brought to 30 ° C.
- the stirring speed is fixed at 400 revolutions per minute. A nitrogen sweep is applied for 15 minutes.
- half of the following initiator solution is added to the mixture: 0.28 g of potassium persulfate + 20 g of demineralized water.
- the jacket temperature is brought to 75 ° C (tO).
- the double jacket temperature is raised to 80 ° C and the 2 nd portion of the initiator solution is injected into the reaction medium.
- the temperature of the reaction medium is brought to 85 ° C. for 3 hours.
- the temperature of the final product is brought to 40 ° C., the reactor is then drained.
- the final experimental dry extract, measured by gravimetry, is 19.5% by weight.
- the product is in the form of a colloidal dispersion with a milky appearance (called "latex 2").
- ADAMQUAT MC80 from ATOFINA at 80% active material, 187
- NMBA N, N'-methylene-bis-acrylamide
- the double jacket temperature of the reactor is brought to 30 ° C.
- the stirring speed is fixed at 400 revolutions per minute.
- a nitrogen sweep is applied for 15 minutes.
- the priming solution is injected into the reaction medium (0.3 g of potassium persulfate + 20 g of demineralized water).
- the jacket temperature is then brought to 75 ° C (tO).
- the temperature of the jacket is increased at 30 ° C, the stirring speed is fixed at 400 revolutions per minute. A nitrogen sweep is applied for 15 minutes. After this degassing phase, half of the following initiator solution is added to the mixture: 0.28 g of potassium persulfate + 20 g of demineralized water. The jacket temperature is brought to 75 ° C (tO).
- the double jacket temperature is raised to 80 ° C and the 2 nd portion of the initiator solution is injected into the reaction medium.
- 3.1 g of vinyltriisopropoxysilane (Coatosil 1706) are introduced into the reaction medium.
- the temperature of the reaction medium is brought to 85 ° C. for 3 hours.
- the temperature of the final product is brought to 30 ° C., the reactor is then drained.
- the final experimental dry extract, measured by gravimetry, is 25.8% by weight.
- the product is in the form of a colloidal dispersion with a milky appearance (called "latex 3").
- Synthesis of a multiphase adhesive with a phase weight ratio of 35/65 and a weight rate of crosslinking of the continuous phase of 1000 ppm 401 g of demineralized water are loaded into a polymerization reactor equipped as described in Example 1. Then, 216 g of acryloethyltrimethylammonium chloride (ADAMQUAT MC80 from ATOFI A with 80% active material, 270 g of commercial product), 0.216 g of N, N'-methylene-bis-acrylamide (NMBA) are introduced into the reactor. , 1000 ppm compared to pure ADAMQUAT). The double jacket temperature of the reactor is brought to 30 ° C. The stirring speed is fixed at 400 revolutions per minute. A nitrogen sweep is applied for 15 minutes. After these 15 minutes of degassing, the priming solution is injected into the reaction medium (0.44 g of potassium persulfate + 50 g of demineralized water). The jacket temperature is then brought to 75 ° C (tO).
- the jacket temperature is brought to 80 ° C.
- the temperature of the reaction medium is brought to 85 ° C. for 3 hours.
- the temperature of the final aqueous solution is brought to 30 ° C.
- the reactor is then drained.
- the final experimental dry extract, measured by gravimetry, of the solution (called solution 4) is 30% by weight. 423.1 g of demineralized water are loaded, 188.3 g of solution 4 (56.5 g of polymer) and
- Example 1 105 g of styrene in a polymerization reactor equipped as described in Example 1.
- the jacket temperature is brought to 30 ° C, the stirring speed is fixed at 400 revolutions per minute.
- a nitrogen sweep is applied for 15 minutes.
- the double jacket temperature is raised to 80 ° C and the 2 nd portion of the initiator solution is injected into the reaction medium.
- the temperature of the reaction medium is brought to 85 ° C. for 3 hours.
- the temperature of the final product is brought to 30 ° C., the reactor is then drained.
- the final dry extract is 22.8% by weight.
- the product is in the form of a colloidal dispersion with a milky appearance (called "latex 4").
- 309.8 g of demineralized water, 399 g of solution 1 (105 g of polymer) and 35 g of styrene are loaded into a polymerization reactor equipped as described in example 1.
- the jacket temperature is brought to 30 ° C, the stirring speed is fixed at 400 revolutions per minute. A nitrogen sweep is applied for 15 minutes. After this degassing phase, half of the following initiator solution is added to the mixture: 0.14 g of potassium persulfate + 20 g of demineralized water.
- the jacket temperature is brought to 75 ° C (tO).
- the jacket temperature is brought to 80 ° C and the other half of the initiator solution is injected into the reaction medium.
- the temperature of the reaction medium is brought to 85 ° C. for 3 hours.
- the temperature of the final product is brought to 30 ° C., the reactor is then drained.
- the final experimental dry extract, measured by gravimetry, is 18% by weight.
- the product is in the form of a colloidal dispersion with a milky appearance (called "latex 5").
- a film about 0.5 mm thick is prepared by slow evaporation of water (50 ° C) from a sample of solution or latex in a ventilated oven.
- the dry film taken out of the oven is rigid, brittle and has no surface tack. After a few hours in the ambient air.
- the film absorbs water from the ambient air and becomes soft, very sticky and no longer brittle.
- the water content of the films is determined by gravimetry. For this, the film is weighed and then dried in an oven at 105 ° C for two hours. The film is weighed after drying, and the difference in weight to determine the humidity.
- 10x10 mm samples are subjected to a shear creep test by applying a force of 0.3N using a DMA 2980 device from TA Instruments. After 30 minutes, the deformation achieved by the samples and the practically constant rate of deformation of the samples are measured.
- the adhesives of the examples can be used as a solid adhesive (the water which they then contain is only the residual moisture making it possible to activate the adhesive, ie ⁇ 15% and preferably less than 10% by weight) for sticking sheets of paper on wall posters, for the posters themselves, for frames and calendars, for objects in alternating humid atmospheres, such as bathrooms, for repair by sticking wallpaper , for example.
- the bondings made with the adhesive show very good aging. In fact, we do not observe take-off over time of labels and sticky notes, even on slightly heated media such as computer screens.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02711988A EP1366129A1 (fr) | 2001-01-17 | 2002-01-17 | Adhesif sensible a la pression hydro-desintegrable et procede pour sa fabrication |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0100594A FR2819521B1 (fr) | 2001-01-17 | 2001-01-17 | Adhesif sensible a la pression hydro-desintegrable et procede pour sa fabrication |
FR01/00594 | 2001-01-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002057385A1 true WO2002057385A1 (fr) | 2002-07-25 |
Family
ID=8858917
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2002/000183 WO2002057385A1 (fr) | 2001-01-17 | 2002-01-17 | Adhesif sensible a la pression hydro-desintegrable et procede pour sa fabrication |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1366129A1 (fr) |
FR (1) | FR2819521B1 (fr) |
WO (1) | WO2002057385A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019008259A1 (fr) | 2017-07-04 | 2019-01-10 | Arkema France | Materiau absorbant pour la protection des dispositifs electroniques |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050161152A1 (en) * | 2004-01-23 | 2005-07-28 | Hoffmann Dennis Sr. | Pressure sensitive adhesive repair product |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE859625A (fr) * | 1977-10-12 | 1978-04-12 | Northern Illinois Res Inc | Composition a base de matiere plastique |
EP0077618A1 (fr) * | 1981-10-15 | 1983-04-27 | Ciba Specialty Chemicals Water Treatments Limited | Adhésifs pour papiers de tenture préencollés |
EP0415055A2 (fr) * | 1989-07-24 | 1991-03-06 | Röhm Gmbh | Adhesif cutané hydrosoluble sensible à la pression |
EP0676457A1 (fr) * | 1994-04-06 | 1995-10-11 | Graphic Controls Corporation | Hydrogel adhésifs à base d'ester de poly(méth)acrylates |
WO1996006143A1 (fr) * | 1994-08-19 | 1996-02-29 | Minnesota Mining And Manufacturing Company | Adhesifs a base d'eau |
-
2001
- 2001-01-17 FR FR0100594A patent/FR2819521B1/fr not_active Expired - Fee Related
-
2002
- 2002-01-17 WO PCT/FR2002/000183 patent/WO2002057385A1/fr not_active Application Discontinuation
- 2002-01-17 EP EP02711988A patent/EP1366129A1/fr not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE859625A (fr) * | 1977-10-12 | 1978-04-12 | Northern Illinois Res Inc | Composition a base de matiere plastique |
EP0077618A1 (fr) * | 1981-10-15 | 1983-04-27 | Ciba Specialty Chemicals Water Treatments Limited | Adhésifs pour papiers de tenture préencollés |
EP0415055A2 (fr) * | 1989-07-24 | 1991-03-06 | Röhm Gmbh | Adhesif cutané hydrosoluble sensible à la pression |
EP0676457A1 (fr) * | 1994-04-06 | 1995-10-11 | Graphic Controls Corporation | Hydrogel adhésifs à base d'ester de poly(méth)acrylates |
WO1996006143A1 (fr) * | 1994-08-19 | 1996-02-29 | Minnesota Mining And Manufacturing Company | Adhesifs a base d'eau |
Non-Patent Citations (1)
Title |
---|
"AN 19831", RESEARCH DISCLOSURE., no. 198, 1980, KENNETH MASON PUBLICATIONS, HAMPSHIRE., GB, XP002178477, ISSN: 0374-4353 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019008259A1 (fr) | 2017-07-04 | 2019-01-10 | Arkema France | Materiau absorbant pour la protection des dispositifs electroniques |
FR3068706A1 (fr) * | 2017-07-04 | 2019-01-11 | Arkema France | Materiau absorbant pour la protection des dispositifs electroniques |
JP2020525589A (ja) * | 2017-07-04 | 2020-08-27 | アルケマ フランス | 電子機器保護用の吸収性材料 |
JP7373405B2 (ja) | 2017-07-04 | 2023-11-02 | アルケマ フランス | 電子機器保護用の吸収性材料 |
Also Published As
Publication number | Publication date |
---|---|
FR2819521A1 (fr) | 2002-07-19 |
FR2819521B1 (fr) | 2006-11-17 |
EP1366129A1 (fr) | 2003-12-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US9932499B2 (en) | UV-curable composition and pressure sensitive adhesive having breathability derived therefrom, as well as method for manufacturing the same | |
FR2497811A1 (fr) | Dispersions aqueuses de polymeres et leur application notamment comme compositions de revetement | |
FR2718471A1 (fr) | Composition de revêtement pour papier. | |
EP0876440B1 (fr) | Adhesifs sensibles a la pression et films autocollants utilisant lesdits adhesifs | |
WO1997015604A1 (fr) | Latex composites a tres fine granulometrie - leur application aux peintures sans solvants | |
WO2001018111A2 (fr) | Compositions de polymeres acryliques antistatiques | |
FR2479841A2 (fr) | Composition utile comme adhesif sensible a la pression et adhesif la contenant | |
WO2007012736A2 (fr) | Particules nanocomposites electriquement conductrices possedant un coeur de polyacrylate d'alkyle et une ecorce de polyaniline | |
EP0890621B1 (fr) | Revêtement | |
EP0731137B1 (fr) | Utilisation à titre d'antiadhérent et/ou d'hydrofugeant de polyorganosiloxanes fonctionnalisés, greffés | |
JPH01256580A (ja) | はく離性粘着剤組成物 | |
EP1366129A1 (fr) | Adhesif sensible a la pression hydro-desintegrable et procede pour sa fabrication | |
KR20210023258A (ko) | 아크릴계 에멀젼 점착제 조성물 | |
FR3097866A1 (fr) | Composition comprenant un composé renfermant deux groupes polymérisables, un polymère à étages multiples et un polymère thermoplastique, son procédé de préparation, son utilisation et article la comprenant | |
FR2477172A1 (fr) | Composition utile comme adhesif sensible a la pression et feuille adhesive la contenant | |
EP1044230B1 (fr) | Copolymere alcalisoluble associatif diol et son utilisation comme agent epaississant pour le couchage papier | |
JP2006008831A (ja) | 水性粘着剤組成物 | |
EP1208117B1 (fr) | Dispersions aqueuses de polymeres | |
EP0208585B1 (fr) | Composition modifiée de polymères thermoplastiques obtenus par polymérisation en masse | |
JP2006008834A (ja) | 粘着剤用樹脂組成物水性分散体及び粘着剤組成物 | |
WO1999057167A1 (fr) | Copolymere greffe utile pour preparer des compositions adhesives sensibles a la pression | |
JPS6011569A (ja) | 再剥離性粘着剤組成物およびその製造法 | |
JPH0892538A (ja) | 一液水性加工紙用接着剤組成物 | |
JP2006008833A (ja) | 粘着剤用樹脂組成物水性分散体及び粘着剤組成物 | |
JP2762464B2 (ja) | ブロッキング防止剤被覆ポリエステルフィルム |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG US UZ VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2002711988 Country of ref document: EP |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
WWP | Wipo information: published in national office |
Ref document number: 2002711988 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: JP |
|
WWW | Wipo information: withdrawn in national office |
Country of ref document: JP |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 2002711988 Country of ref document: EP |