CN1501779A - Strapless respiratory face mask - Google Patents

Abstract

The present invention relates to face masks to control and improve the quality of inhaled air. Claimed and described is a respiratory face mask comprising a flange and a filter layer, the flange having an inner periphery and an outer periphery and a first and a second width measured perpendicular to the inner periphery between the inner periphery and the outer periphery, characterised in that the first width is greater than the second width. Preferably, such face masks are strapless and rely on a hydrogel adhesive for attachment and sealing. Further claimed and described is an improved cover layer for an adhesive of such a face mask.

Description

The breathing mask that does not have band

Invention field

The present invention relates to control and the face shield that improves the suction air quality.Claimed and what describe is breathing mask, it comprises flange and filter course.This flange has inner edge and outer rim, and between this inner edge and the outer rim, and first width and second width that record with inner edge quadrature place, and it is characterized by: first width is greater than second width.More preferably, this face shield is not have band, but by a kind of hydrogel adhesive, and fixing and sealing cover is on the face with face shield.Further claimed and describe be: the improved cover layer that is used for this class face shield adhesive.

Background of invention

Many face shields have been known in the art, and finding on the market.Comprise and using repeatedly and disposable face guard, the medical use face shield, particularly the surgeon uses face shield, working environment requires to use face shield to suck the face shield of the occupational staff use of air, and personal face shield, as preventing the propagation that infects, these face shields are the most widely used in Asian countries.

Prior art is included in the following document in the face shield field:

The US 4,966,140 that on October 30th, 1999 issued discloses surgeon protection and use face shield, this face shield to comprise substantially vertical restraint zone and along the strip of paper used for sealing of top edge.

The US 5,735,270 that on April 7th, 1998 issued discloses disposable collapsible face shield, and it comprises roughly rectangular filtering material monolithic and foamed material strip of paper used for sealing, and the face shield knotting parts that are connected in two jiaos of tops.

The US 5,724,964 that on March 10th, 1998 issued discloses disposable face guard, and it is fixed on wearer's head by a braiding headband.Face shield has used various gasket-type encapsulant, such as plastic foil, and/or hydrogel or other deformable types of material, as perforate (pen cell) and closed pore (closed cell) foamed material.Particularly, hydrogel class adhesive is not considered in this invention.

The JP10-248 that on March 11st, 1997 submitted to, 948, a face shield that covers nose and mouth is disclosed, it comprises the adhesive material at face shield edge.

The WO00/07636 that on July 30th, 1999 submitted to discloses novel hydrogel adhesive, is particularly suitable for disposable absorbent article, but also is suitable for breathing mask.

The continuation partial monopoly US 4,354,4889 that US 4,240,420 that on December 23rd, 1980 issued and October 19 nineteen eighty-two thereof issue discloses filtering face, and it comprises the filter element that separates that is used for wearer's mouth, nose.

Be fixed in skin with the prior art of the general application facet of adhesive especially developed aspect the goods of adhesive bandage, adhesive plaster and bandage.

In order to provide this class bandage desired cohesive, prior art discloses usually uses some adhesive that has very high bonding strength such as rubber adhesive and acrylic compounds.These adhesives are painted thick-layer then, have strengthened its bonding force, and bandage is fixed on user's skin.

US4,699,146 disclose the hydrophilic elastic contact adhesive is suitable for using together with Ostomy device bandage, ulcer pad, sanitary napkin, diaper and physical culture protection pad.This adhesive comprises organic polymer and a kind of adhesive plasticizer of at least a cross-linking radiation.

GB 2 115 431 discloses and has been used for bandage, the adhesive of wound or burn dressing, ecg measurement adhesive, sanitary napkin, diaper and ulcer pad.This adhesive comprises the organic polymer of cross-linking radiation, as polyvinylpyrrolidone/ and adhesive plasticizer.

Yet, in order to use satisfactorily, promptly to wear one period long period as breathing mask one appliances, importantly adhesive will have the adaptive composition of skin, does not cause pachylosis or injured skin, or causes skin to irritate or inflammation.If more preferably this adhesive wearer's skin of fitting makes between adhesive and the skin and can obtain maximum contact surface.And the adhesive that it would also be desirable to provide can make breathing mask easily extract on the face from the wearer, and the wearer does not have unacceptable pain, can not stay residue yet.This point becomes more important especially in some cases, for example in order to exchange better, to have a meal to wait and wants one or many to take, and when being with this face shield again again, guarantees this face shield of use on sensitive skin (as, older wearer).Yet,, also to keep the desired cohesive of face shield in the process certainly repeatedly repeating to wear although should not have pain on the other hand.

Under the moist skin condition, obtain required cohesive, it is even more serious that problem becomes.In some occasions, before wearing face shield, must first cleaning skin, so skin is normally wet.And, during wearing face shield, for example, because the environment temperature height, or be engaged in strong physical work, sweat is increased.Existing adhesive usually can not be tightly adhered on the skin immediately as those adhesives that contain hydrogel particle, and needs fix in position, until manifesting enough minimum adhesion.And total adhesive power of this class adhesive can obviously descend with regard to the wet skin surface originally.During wearing like this, as passing through facial movement, exerting pressure generally all can not keep to face shield is fixed on the skin.

Another general especially problem was the ability that adheres to the adhesive on Oily surface during breathing mask used.The number of naturally occurring grease and sebum and kind vary with each individual on the skin.And adhesive should reliably stick on the skin of crinosity, can peel off again painlessly.

For example, WO-A-97/24149 (3M) has described a kind of lipophilicity polarity contact adhesive, and it is said has the cohesive that increases to oily skin.This adhesive comprises a kind of hydrophilic polymer matrix, organic plasticizer of a kind of polarity and the surfactant of at least 9% (w/w) hydrophilic lipophilic balance HLB between 10-17.Point out that this hydrophilic polymer matrix can be selected from one group of polymer that comprises homopolymers and copolymer, for example, (methyl) acrylic acid and its esters, acrylamide, N-vinyl pyrrolidone and basic third ammonia propyl sulfonic acid and its esters.This adhesive makes by polymerisation in even aqueous mixtures.

In view of above-mentioned prior art, but still need provide a kind of improved breathing mask.It need meet following purpose:

-face shield comfortable wearing, safety.

-face shield is cheap for manufacturing cost, can be used as disposable, yet also can repeat on the other hand repeatedly to use.

-face shield is convenient to facial movement, promptly can dehisce a little at least, speaks, and cough etc. can also be kept the sealing of reliable face simultaneously.

The size that-face shield can be fit to large quantities of consumers provides.

-face shield function on humidity, greasiness, particularly crinosity skin is good.

-face shield can be on people's skin one period long period of secure adhesion.

-face shield can be easily, cosily take.

Another object of the present invention is the cover layer that provides face shield to comprise for adhesive phase, and this cover layer is peeled off from adhesive easily, pastes wearer's face best between face shield.

Being surprised to find now above-mentioned purpose can be by providing breathing mask and being used for that the cover layer of adhesive phase reaches on the face shield, and mechanical performance that adhesive possesses and the adhesive that should comprise will be narrated hereinafter.

Summary of the invention

The present invention relates to control and the face shield that improves the suction air quality.Claimed is breathing mask with what describe, and it comprises flange and filter course.This flange has inner edge and outer rim, and between this inner edge and the outer rim, and first width and second width that record with inner edge quadrature place, and it is characterized by: first width is greater than second width.More preferably, this face shield is not have band, but by a kind of hydrogel adhesive, and fixing and sealing cover is on the face with face shield.Further claimed and describe be: the improved cover layer that is used for this class face shield adhesive.

Brief Description Of Drawings

Can think, can more be expressly understood the present invention in conjunction with following accompanying drawing.

Fig. 1 is the front view on wearer's face one side of better embodiment of the present invention.

Fig. 1 a is the front view on wearer's face one side of better embodiment of the present invention, and this figure has shown that also axle A delimit the sector on the flange.

Fig. 2 is the side view in the same better embodiment of the present invention.

Fig. 3 is the front view on wearer's face one side of better embodiment, and adhesive is provided by peeling paper.

Detailed description of the invention

Summary

The present invention relates to control and improve the face shield that sucks air quality, it sometimes is also referred to as breathing mask, for for simplicity, also is referred to as face shield (10) or cover (10) here.This cover comprises at least one flange (20) and at least one air control module, and as filter course (30), it can be whole or connect, and can be removable or non-disconnectable sheet.

Breathing mask of the present invention (10) can be designed to sealing cover wearer's only mouth or sealing cover wearer's nose only, but preferred configuration becomes these two respiratory apparatus of sealing cover, and possess fixing means known in the art, be wrapped in head and neck or be wrapped on the wearer's ear such as headband or bandage.Best fixing means is the adhesive method according to the present invention, provides layer of adhesive as wearer's face one side at flange (20).

And this breathing mask (10) can be equipped with seal means known in the art, as foamed material.Yet in the best mode for carrying out the invention, face shield provides adhesive phase on (10), and it had both played fixation, sealed again.

Be called protection face shield (10) below breathing mask provided by the invention (10), face shield (10) or cover (10) comprise main key elements-flange (20) and filter course (30).Illustrated in figures 1 and 2 is better embodiment.These embodiments tentatively are fit to the individual and prevent to infect the disposable face guard of usefulness.

Flange

Flange (20) seals, and preferably will cover (10) and be fixed on the wearer on the face.Flange is not used for hiding wearer's respiratory apparatus (mouth and nose).If flange design becomes to cover wearer's mouth and nose, then this flange follows wearer's nose, cheek, chin position to contact usually.

This flange has inner edge (22) and the outer rim (24) that surrounds wearer's respiratory apparatus, and this outer rim defines the exterior contour of cover (10) usually, referring to Fig. 1 and Fig. 2.

One aspect of the present invention is that the face shield (10) that provides has the flange (20) of bigger improvement.The face shield (10) that provides has been provided has had the flange (20) of different border widths, improved the sealing of face shield (10) greatly wearer's face.

The distance that terminology used here " width " refers between the outer rim (24) of the inner edge (22) of flange (20) and flange (20) and records perpendicular to inner edge (22) direction.

More particularly, it is useful having found to make flange (20) part of contiguous wearer's nasal bone and face chin central authorities to have big width.Can also further find, between wearer's nose and cheek, and the width of the flange at corners of the mouth position (20) part narrower be useful.Therefore, one aspect of the present invention is: be greater than a plurality of second width that record on flange at a plurality of first width that record on the flange.Preferably at least one above-mentioned first width is bigger at least by 10% than at least one above-mentioned second width, and is better big at least by 20%, also have better big at least by 30%, even better big at least by 40%, more even big by 50%, best big by 80%.

Preferably the longitudinal axis of reflection people face the right and left symmetry is symmetry according to breathing mask provided by the invention (10).Here the central point of Cai Yonging, be as shown in Figure 1a on the longitudinal axis from nose (26) outer rim to chin the point of the distance of middle part outer rim (29).

About the longitudinal axis and stare at angle that clockwise direction between the reference axle that meets at central point measures (referring to figure (a), the zone of less width should be present in following fan section: the sector that at first is 20 °-80 °, be preferably 30 ° of-70 ° of sectors, the best is 40 ° of-60 ° of sectors, and secondly be 100 ° of-150 ° of sectors, be preferably 105 ° of-140 ° of sectors, the best is 110 ° of-130 ° of sectors, and is present in the sector of two corresponding on longitudinal axis opposite side mirror image symmetries.These zones also are referred to as cheek district (27) and corners of the mouth district (28) referring to Fig. 1 another side.

In another importance, the flange of above-mentioned less width (20) part, this paper also is referred to as the narrow of flange, and it plays the hinge effect, is convenient to facial movement.Here do not wish to be bound by theory, this hinge effect is considered to because less at the employed material of flange narrow, so flange (20) has due to the higher flexibility, also think, when applying on the belling edge (20) owing to the facial movement strain, compare with wider portion, the narrower part fold still less.This class fold is considered to cause the root of sealing shortcoming.

Face shield of the present invention (10) can have Any shape, such as circular, oval, square, rectangle or triangle.Oval preferable.In general, the shape of face shield (10) mainly is given by the outer rim (24) of flange.If face shield provides the wearer to the adult, the outer rim (24) of flange (20) the following shape that should have then, it is between the 5-15cm along longitudinal axis height, is preferably 8-12cm; The width that records along the transverse axis by central point is for 8-20 is preferably 10-15cm.Should select height, in order to making some facial movements and opening.Be surprised to find, face shield for example of the present invention (10) even allow to speak and cough, it provides not only comfortable but also safe benefit is arranged.

Be surprised to find regulation in above-mentioned flange (20) design the stickiness improved greatly and the cover (10) of comfortableness are provided.Particularly find, can accomplish together not only to have improved sealing but also firm fixation with following public adhesive, and need not use strong adhesive, and need not rely on further fixing means, as band or band etc. according to better embodiment of the present invention.

Here do not wish to be subjected to theory, thinking provides less width can allow flange (20) to have flat or two-dimensional shapes usually before using, and can more accurately follow face's three-D profile of people closely, and corrugationless occurs again.And this fold generally is harmful to the sealing of cover (10).

In some embodiments of the present invention, a kind of air control module (30) has one with upper flange (20).For example, flange (20) arrangement that can superpose can be exposed the new flange (20) that comprises fresh adhesive layer with peeling off with the flange of crossing (20) like this.The combination by being used for fixing adhesive phase on wearer's face on the flange (20) is arranged in stack.In this embodiment, only using before, outermost layer flange (20) should be coated with stripping film (40).

The air control module

Optimal air control module of the present invention is filter course (30).This filter course (30) can be provided by the combination of varied material and multiple material.Preferred materials comprises non-woven material, and textile material is as silk, fiber crops or cotton and thin paper.Also can be any material of known employing in the absorbing articles industry, i.e. sanitary napkin, panty-liners and diaper are used in the top flat of this class absorbing articles or the thin slice of egative film.Known materials as top flat has good liquid permeability, thereby also has air permeability and good, also is fit to the skin contact simultaneously.The common gas permeability of known materials as egative film is poor slightly, but the material of exploitation also possesses high saturating steam and aeriality recently, and nowadays they are taken into full account employing.Because the exhalation air humidity, the most preferred material that provides good gas permeability has a kind of moist sensation during can avoiding wearing face shield like this.On the other hand, some steam in this filter course (30) elimination exhalation preferably air are as trace saliva or blood, with the propagation that suppresses to infect.

In some preferable embodiments of the present invention, cover (10) and best filter course (30) also comprise a kind of compound that absorbs smell, as active carbon or zeolite.

Should select to have certain flexibility by the filter course (30) that face shield of the present invention (10) is comprised.Can fit better each face mask of wearer of this flexibility, the stress of adhesive area when reducing facial movement, and make things convenient for its packing, degree should consider that above-mentioned aspect selects.

Yet the selected filter course (30) that face shield (10) comprises should have certain rigidity.According to the specific embodiment of the invention, the rigidity of flexible flake can prevent that this thin slice from stretching into wearer's mouth (if open words).Some wearer's tongues touch this thin slice can make some wearer unhappy, for example because the taste of non-woven material is unhappy.

If rigidity slightly, or at least not too thin material has extending apparatus as pleated (32) and so on, the then tunable requirement and the requirement of flexibility on the other hand of rigidity on the one hand.Numerous pleated patterns can be used as extending apparatus.Preferably directly the filter course (30) of contiguous wearer's mouth does not have pleated (32).Therefore, pleated position, wearer's upper lip slightly upper and the position, lower lip slightly lower of preferably being in, pleated also can be randomly in wearer's nasal region.In the better embodiment of the present invention, on wearer's upper lip and under the lower lip, there have 2 or 4 pleated (32), the best to be respectively 1 or 2 respectively to be pleated.Have in the better embodiment shown in Figure 2 four pleated.Though pleated can symmetric arrays, more preferably asymmetric geometry makes it than mouth better extensibility be arranged at nose.

In the another embodiment of the present invention, air control module (30) also comprises more complicated parts, with the air of control suction and/or exhalation.In the better embodiment of the present invention, air control module (30) comprises control device, specifically is for example add to suck in the air with oxygen, as is used in the curative activity in the respirator.In another better embodiment, air control module (30) comprises the exhalation air means of analyzing.These class means are designed to analyze the trace alcohol of feeding, the method that adopts in alcohol screen test as the police.From enlarging for the purpose of the medical purpose, also plan to adopt and analyze exhalation air means, judge someone metaboilic level.

In some embodiments of the present invention, air control module (30) removably is fixed on the flange (20), so air control module (30) can be changed.Control module (30) more ventilates under zone face cover (10) situation not, at least provide to make the reusable economically benefit of flange (20), or under other occasion, the different requirements of filtering are arranged as working environment, change in the time of also can adorning oneself with face shield, need not take and be fixed to again on the flange (20).

Preferable adhesive

According to the present invention, can any pattern at the adhesive of wearer's face one side of face shield (10), symmetrical or asymmetrical, be coated with as point or strip pattern.Adhesive preferably only is coated on the flange (20) of breathing mask (10), and filter course (30) does not have adhesive.

Adhesive is coated in breathing mask (10), one or several zone on face's one side of (following also be called " device ") with the layer (measurement unit is millimeter (mm)) with certain thickness c.Preferably all applying adhesive zone (20) thickness are constant, but thickness also can change.

The adhesive phase thickness that preferably is coated at least a portion of face's one side of device is constant, or can change along the thickness of surperficial coating adhesive layer interested.Can adopt the known any means of the industry, such as stitching shape coating, spiral coating or pearl coating or printing face's one side that (slot coating, spiral or beadapplication of printing) is coated in adhesive this device.In general, the basis weight of applying adhesive is at 20g/m ²-2500g/m ²Between, preferable at 500g/m ²-2000g/m ²Between, best at 700g/m ²-1500g/m ²Between, depend on predetermined final use.

Labor picked-off the order that time occurs common situation from this device to this class device, show that adhesive specific characteristic needs better satisfy, so that it reaches desired performance objective, particularly guarantee initial fixation, guarantee fixing between the operating period, and wear the painless excision in back.The characteristic that this paper considers is an elastic modelling quantity, and what it was described is the elastic behavior of material, and viscous modulus, and what it was described is the viscous behavior of adhesive material.

The viscous behavior of adhesive can be regarded as represents adhesive fixing fast, and the firm ability that sticks to a certain particular surface; And elastic behavior can be regarded as the behavior of expression this adhesive " rigid ", and this value also is important to initial good stickup.The two is in conjunction with a kind of index that is considered to peel off required power.The relation of elastic modelling quantity and viscous modulus is considered to a kind of index, point out its part peel off can with consume in adhesive inside with and part be to be used for triggering actual peeling off.

In order to make adhesive that initial and long sticking effect reliably be arranged, and easy and painless peeling off, the relation of elastic modelling quantity and viscous modulus, and their dynamic behavior also is important.

The elastic modelling quantity of adhesive when 37 ℃ (100) write a Chinese character in simplified form into G ' 37; Viscous modulus when 37 ℃ (100) is write a Chinese character in simplified form into G " 37, and the viscous modulus when 25 ℃ (77) is write a Chinese character in simplified form into G " 25.

Adhesive of the present invention preferably satisfies following condition:

G ' 37 (1rad/sec) is between 500Pa-20000Pa, and is preferable between 700Pa-15000Pa,

Best between 1000Pa-10000Pa.

G " 37 (1rad/sec) between 100Pa-15000Pa, preferable between 100Pa-10000Pa,

Best between 300Pa-5000Pa.

And G ' 37 (1rad/sec) and G " ratio of 37 (1 rad/sec) is between 1-30.

As long as top rheology condition satisfies, then this adhesive also can satisfy such as enough cohesion conditions (preventing that adhesive residue is on skin).This condition is important to the commercial applications of this class adhesive, and those skilled in the art are also very clear.All adhesive compositions that can satisfy above-mentioned standard can be used as this device adhesive, as long as it also can satisfy between the operating period on human or animal's skin, and this device discarded after to the common requirement of safety.

From the sanitary appearance standard, be transparent or white after this class adhesive composition coating of Chang Youxuan.

Measured generally the adhesive phase thickness that at least a portion of face's one side of this device, applies (or Calliper C, thickness unit is mm), with the viscous modulus G of this adhesive when about 100rad/sec " 25 relation.It is to follow at least a portion of face's one side of device this adhesive of coating and described device is fixed on to provide a kind of scope of peeling off from wearer's skin relevant on the wearer's skin easy and painlessly.

Therefore, adhesive phase provided by the invention should have thickness C, makes viscous modulus G like this " 25 (100rad/sec) and the preferably satisfied following empirical equation of thickness C:

G”25≤[(7.00+C)×3000]Pa

And empirical equation preferably:

G”25≤[(5.50+C)×1700]Pa

Though in the preferable implementation method of the present invention, the adhesive phase thickness C is constant, also different-thickness can be arranged but this a kind of adhesive phase is coated on face's one side different parts of this device, as long as under any circumstance can both satisfy above-mentioned C and G on each position " relational expression between 25.

In general, the skin of wearing the people of this device has nothing in common with each other, and is widely different.Particularly the kind of Fen Mi grease and sebum and amount vary with each individual, and widely different.Yet known usually, face, sebum secreted is many near chin portion especially, even and for example by removing in corresponding skin area wiping, also can secrete this class sebum again very soon.And the people who wears this device smears toilet cream putting on the skin with the skin area of adhesive contact, as face cream etc.Therefore a kind of adhesive that sticks on the oily skin importantly is provided.Therefore the invention provides a kind of adhesive with dryness initial bonding strength (PDI) and oiliness initial bonding strength (PGI), PDI that is recorded by method of testing described herein and the ratio of PGI are 1: 1-1.0: between 0.2, preferable 1: 1-1: between 0.3.Usually, the adhesive that this device uses, its dryness initial bonding strength (PDI) is between 0.1N/cm-7.0N/cm, and is preferable between 0.1N/cm-5.0N/cm, is more preferably under between the 0.5N/cm-3N/cm.The value of oiliness initial bonding strength (PCI) the preferably value with the dryness initial bonding strength is identical.Yet the value that obtains usually is lower, and acceptable scope is between 0.1N/cm-5N/cm, and is preferable between 0.1N/cm-3N/cm, is more preferably under between the 0.1N/cm-2N/cm.Have again, preferably will keep one section and wear the time, so the ratio of oiliness initial bonding strength (PGI) and the final peel strength of oiliness (PGF) is 1: 1-1: between 0.25, be preferably in 1: 1-1: between 0.5 cohesive of Oily.

Since the characteristic that this class device uses with environment so, this adhesive preferably has 3% (adhesive can directly be sticked on humidity or the moist skin) that the water absorbing capacity of defined in the test is at least described binder wt.Particularly, the ratio of the adhesive peel strength that records by method of testing here preferably keeps steady state value, the ratio that is initial bonding strength PDI and final peel strength PWF is 2: 1-1: between 4, preferable 2: 1.25-2: between 4, best 2.0: 1.5-2.0: between 2.5.Usually, this device is to dryness, preferably also is should be between 0.1N/cm-7.0N/cm to the initial bonding strength of moist skin, and is preferable between 0.1N/cm-5.0N/cm, is more preferably under between the 0.5N/cm-3.0N/cm.

Have again, preferably except in addition in the presence of water, keep its peel strength a period of time, and water absorption rate is less than 15%, and is preferable less than 10%, better for 7%.Here do not plan to be subjected to theory, think for can be during wearing, even during with the excess liq contact or in high humidity environment, directly stick on the wet skin and keep its constant bond properties, then need to consider the water absorbing capacity problem of adhesive.Particularly determine not only must consider the absolute water absorption of this adhesive, also will consider its rate of water absorption, make adhesive can satisfy the performance parameter that provides above.

For example, the adhesive that comprises hydrogel particle known in the art comprises three-dimensional rubber mass and is dispersed in colloid shape absorbent granules in this matrix, can only pass through the colloidal solid rather than the limited water yield of matrix absorption.In addition, the speed of suction is slow.Therefore, the adhesive of these prior aries can not stick on the moist surface.

Hydrogel adhesive of the prior art not only can absorb a large amount of water on the other hand, and rate of water absorption is also fast, so this class adhesive also can stick on moist surface.But because rate of water absorption is fast, the suction absolute magnitude is big, and the two is in conjunction with causing this class adhesive very fast its adhesion strength of forfeiture under excessive water or high humidity.

Correspondingly, adhesive of the present invention had both presented the ability that directly sticks on the wet skin, had minimum absolute water absorption and certain rate of water absorption again, so can keep its peel strength within the limits prescribed in during wearing.

Adhesive generally has preferable pattern on the unconventional person of wearing face one side surface of device, it is constant that adhesive phase thickness preferably keeps.This layer preferably keeps continuously, or discontinuous, i.e. point-like, helical form or strip.

Be used in the hair place and mucous tissue of application on human skin the contact adhesive although adhesive resembles, only be appreciated that according to the rheological behaviour of judging the tool feature of this class material to be difficult to also think that this adhesive composition is typical contact adhesive (hereinafter referred to as PSA).

In fact as known to the adhesive industry those of ordinary skill, difference PSA with other can paste temporarily object material (as the water between two glass plates just can) characteristics of tool feature are their rheological parameter, the particularly elastic modulus G ' sharply variation with the stress frequency that is applied.More particularly, as following pointed, when the frequency of the stress that is applied becomes typical debinding frequency from typical bonding frequency, promptly when 1rad/s became 100rad/s, the G ' of PSA can increase several magnitude.

So as first kind of result, can not be by the rheological parameter value that provides, whether certain material of the G ' at a certain especially fixed frequency place value decision can be used as adhesive.This can lead to misunderstanding, because lacked other characteristic, such as surface chemistry, will comprise the material that does not have real value.Therefore must be on dynamical foundation.Consider that rheological behavior is necessary.This not only is applied to elastic modulus G ', and is applied to viscous modulus G ", and then tan (d)=G "/G '.

As everyone knows, typical PSA not only in the frequency range of considering, G " variation big, and G " variation bigger, G " can approach or even be higher than the value of G ', promptly tan (d) near or even greater than 1, especially when frequency is represented the unsticking frequency.

Do not wish to be bound by theory, illustrate that most of energy consumption that unsticking applies (can not produce unsticking) so effectively in adhesive and adhesive and skin interface on, this fact causes from doting on sight and records very high bonding force.

Point out that as top the material that is used as adhesive of the present invention has in 37 ℃ of reference temperatures (as people's normal body temperature), and the rheological behavior that records in frequency range.In case found to paste the device have adhesive, form the adhesive contact at the low frequency place, and unsticking takes place peeling off under the device speed.This speedometer is shown frequency 100rad/sec, is 1rad/sec and form the bonding low frequency of adhesive.Therefore according to the present invention, the frequency range of use is between 1-100rad/sec.

For good bond condition is provided, promptly be about under the frequency of 1rad/sec, the absolute value of elastic modelling quantity should be too not high, otherwise adhesive is too hard, can not combine closely or be formed on the surface of wanting to adhere to.It is important a bit in addition that in order to have good cohesive force material still keeps flexibility simultaneously, and can paste lightly on the skin, requires G " absolute value little.

G ' 37 (1rad/sec) and G " 37 (1rad/sec) be compared to that to guarantee to make these two value balances when pasting skin be important.

Importantly, $\frac{G\text{'}37(100\mathrm{rad}/\sec )-G\text{'}\text{'}37(100\mathrm{rad}/\sec )}{G\text{'}37(1\mathrm{rad}/\sec )-G\text{'}\text{'}37(1\mathrm{rad}/\sec )}$ Ratio must must be enough to greatly guarantee that the dynamic behavior of elastic modelling quantity and viscous modulus is provided by a kind of good bond and painless relation of peeling off easily again of providing.

At last, industry technical staff also is familiar with, the glass transition temperature Tg of adhesive composition (glasstransition temperature), and specific heat capacity and specific heat conductance are the parameters that is used for defining more comprehensively the useful adhesive of a class.

Below one group of characteristic should preferably satisfy the requirement of the present invention to adhesive:

$\frac{G\text{'}37(100\mathrm{rad}/\sec )-G\text{'}\text{'}37(100\mathrm{rad}/\sec )}{G\text{'}37(1\mathrm{rad}/\sec )-G\text{'}\text{'}37(1\mathrm{rad}/\sec )}$ Ratio be not less than 0.5, preferable between 0.7-3, best between 1-1.8.

G ' 37/G " 37 ratio is not less than 0.5 to frequency 1rad/sec-100rad/sec scope planted agent at least, and preferred values is between 0.7-10, and optimum value is between 1-7.

Rheological behaviour is also relevant with the glass transition temperature Tg value.For relevant adhesive of the present invention, the Tg value is preferable should to be lower than 0 ℃, goodly is lower than-5 ℃, and the best is lower than-10 ℃.

In the occasion that requires on crinosity skin, to paste and seal, be this situation often when the particularly bearded male sex wearer of male sex wearer wears face shield, the best rheological behavior of relevant adhesive below additionally will considering.

As noted, the material of purposes adhesive of the present invention has in 37 ℃ of reference temperatures (as people's normal body temperature), and the rheological behavior that records in the angular frequency scope.Have bonding goods in case found to paste, to form the adhesive contact at the low frequency place, and unsticking to take place peeling off under the goods speed.This speedometer is shown frequency 100rad/sec, is 1rad/sec and form the bonding low frequency ranges of adhesive.Therefore according to the present invention, the frequency range of use is between 1-100rad/sec.

For good bond condition is provided, promptly be about under the frequency of 1rad/sec, the absolute value of elastic modulus G ' should be too not high, otherwise adhesive is too hard, and can not combine closely or be formed on the surface of wanting to adhere to.It is important a bit in addition that in order to have good cohesive force material still keeps flexibility simultaneously, and can paste lightly on the skin, requires G " absolute value little.

In order to guarantee hair through-fall gel adhesive, make adhesive can contact and be adhered to skin surface, and hair can also be when peeling off separates easily and does not have pain or stay residue with hydrogel adhesive, found now that the elastic modelling quantity of this adhesive and viscous modulus must be within certain absolute values, and the Δ minimum.

Below one group of characteristic should satisfy the requirement of the present invention to adhesive:

G ' 37 (1rad/sec) is between 100Pa-4000Pa, and is preferable between 300Pa-2500Pa,

Best between 400Pa-1500Pa.

G " 37 (1rad/sec) are between 100Pa-5000Pa, and are preferable between 200Pa-2000Pa,

Best between 300Pa-2000Pa.

G ' 37 (1rad/sec) is 50Pa at least

G " the preferable 150Pa at least of 37 (1rad/sec)

Better 200Pa at least

The best at least 300 Pa

Except guaranteeing desired initial adhering skin, and also keep cohesive during being preferably in wearer whole, the adhesive peel strength that the method for testing of describing according to the present invention is measured is between 0.1N/cm-5N/cm, and is preferable between 0.2N/cm-3N/cm.

Can in above-mentioned scope, select elastic modelling quantity, viscous modulus and peel strength according to predetermined final use.

The character of hair itself also can influence the ability of hair through-fall gel adhesive.The particularly thickness of hair, length, dense degree and amount of crimp are all very important.Having now found that can be by based on following 1cm to the adaptability that embeds the concrete hair kind in the hydrogel adhesive ²The formula of the hair of reference area is measured:

W×C×G’25(1rad/sec)＜24

In the formula:

W=weight (supposing the proportion unanimity)

The V=volume

The C=crimpness ratio of the hair length of non-stretching, extension (hair length of stretching, extension with)

For the adhesive composition that provides can satisfy the above-mentioned rheology and the physical characteristic requirement of certain adhesive, any medically suitable water-insoluble basically contact adhesive that comprises the polymer that can form the three dimensional matrix that possesses these characteristics all can use.

According to the present invention, the three dimensional matrix that is referred to as gel here comprises can chemistry or the polymer key component of physical crosslinking.This polymer can be natural or artificial synthetic.Non-cross-linked polymer comprises repetitive or the monomer that is obtained by following material: vinyl alcohol, vinethene and their copolymer, the carboxy vinyl monomer, vinyl acetate monomer, the carboxyl vinyl acetate monomer, vinylamide monomers, the hydroxyl vinyl monomer contains the cationic vinyl monomer of amine or quaternary amine, N-vinyl lactam monomer, PEO, PVP (PVP), polyurethane, acrylic polymer, as methyl acrylate, methacrylate 2 hydroxyl ethyl esters, methacrylic acid methoxy base diethoxy ethyl ester and methacrylic acid hydroxyl diethoxy ethyl ester, acrylamide, and sulfonated polymer, as the acrylamide sulfonated polymer, for example, 2 acrylamido methyl propane sulfonic acid (AMPs) and acrylic acid (3-sulfo group third) ester acid (SPA) and their mixture.Also have, acrylonitrile, Methacrylamide, N, N, DMAA (NNDMA), acrylate, as acrylic acid methyl esters, ethyl ester and butyl ester.Perhaps, non-cross-linked polymer can be the homopolymers or the copolymer of polyvinylether, or the copolymer that obtains of the half ester of Malaysia ester.Similarly, any other compatible polymeric monomeric unit can be used as copolymer, for example, and polyvinyl alcohol and polyacrylic acid or ethene and vinyl acetate.

Another replacement method, polymer can be the block copolymer thermoplastic elastomers, as the ABA block copolymer, as styrene-alkene-styrene block copolymer or Ethylene-Propylene Block Copolymer.Better this base polymer comprises hydrogenation level styrene/ethylene-butylene/styrene (SEBS), styrene/isoprene/styrene (SIS) and styrene/ethylene-propylene/styrene (SEPS).

Good especially polymer is an acrylic polymer, sulfonated polymer such as acrylamide sulfonated polymer, vinyl alcohol, vinyl pyrrolidone, PEO and their mixture thereof.Best is polymer with nitrogen.

According to the present invention, three-dimensional adhesive matrix also comprises a kind of plasticizer of preferably liquid at room temperature basically.Select this material for use, make polymer dissolution or be dispersed in this plasticizer.For those embodiments that adopts cross-linking radiation, plasticizer also must be to be suitable for cross-linking radiation, makes it can not restrain the cross-linking radiation process of this polymer.This plasticizer can be hydrophily or hydrophobicity.

Suitable manufacturing methods comprises: water, alcohol, as glycerine and sorbierite, and the polyalcohol of glycol and so on and such as the monoether of PAG or the ether glycol of bis ether, list or diester gather alkyl diol, polyethylene glycol (molecular weight is up to about 600 usually), glycolic acid ester, glycerine, Isosorbide Dinitrate, citrate and tartrate, the imidazoline amphoteric surfactant of deriving, lactams, acid amides, polyamide, quaternary ammonium compound, ester such as terephthalate, adipate ester, stearate, palmitate, sebacate, or myristinate and their mixture.Good especially is polyalcohol, polyethylene glycol (its molecular weight is up to about 600), glycerine, sorbierite, water and their mixture.

Typical adhesive, the ratio of its polymer and plasticizer (w/w) is 1: 100-100: between 1, best 50: 1-1: between 50.Yet, between them accurately consumption and ratio thereof depend on the polymer that adopted and the character of plasticizer to a great extent, can select easily by technical staff in the industry.For example, the amount of the required plasticizer of high molecular weight polymers will be come manyly than low-molecular-weight polymer.

In addition, adhesive preferably also comprises micellization class lipopolymer, promptly so-called super coiling polymer (hypercoiling polymer).The function that this polymer has micellization and removes the grease capsule of piling up from gel-skin interface.

This super coiling polymer has more effectively makes those follow hydrophobicity skin dirt such as sebum or skin to protect the primary surface activating agent micella solvation of cream (creme) contact.The result of this functional effect is that the adhesive effect between adhesive and the skin is subjected to the influence of surfactant or skin dirt ability more and more little.

This super coiling polymer preferably includes any or its combination in the following independent polymer: poly-(maleic acid-styrene), poly-(maleic acid-butyl vinyl ether), poly-(maleic acid-propyl vinyl ether), poly-(maleic acid-ethyl vinyl ether) and poly-(acrylic acid-ethyl acrylate).

Special good example is the alternate copolymer of a kind of styrene and maleic anhydride.As discussed below, when seeking polymerization, adhesive forms two-phase (biphasic) structure.This two-phase is hydrophilic and hydrophobicity.Hydrophobic is made of the hydrophobic monomer that remains the homogeneous reaction mixing portion by active solvent bridge mode at first.The polymer that aqueous phase was separated when perhaps, hydrophobic components also can be for polymerisation constitutes.

The accurate consumption of super coiling polymer and the character that ratio depends on these components to a great extent.

In some occasion, reactant mixture preferably comprises the 3%-20% (w/w) of reactant mixture, the best stabilization of polymer dispersion that is used to provide a kind of stable phase separation system at 8%-18% (w/w).This polymer should comprise following independent polymer or its combination: vinyl acetate-di-2-ethylhexyl maleate copolymer or vinyl-vinyl acetate copolymer.The copolymer of the ethane-acetic acid ethyenyl ester of the commodity DM137 by name that produces as the Harlow chemical company is preferable.

Adhesive preferably also comprises nonionic, cationic, anionic, amphoteric surfactant or their any mixture.

Suitable non-reacted nonionic surface active agent includes, but are not limited to those and is selected from higher fatty alcohol.(as containing the fatty alcohol of about 8-20 carbon atom, the straight or branched configuration) and about 3-100 mole, preferable about 5-40 mole, the comprehensive condensation products of oxirane of the about 5-20 mole of the best.The example of this class nonionic ethoxylized fatty alcohol surfactant is that Tergitol.TM.15-S series and the ICI company that Union Carbide Corporation produces produces the Brij.TM surfactant.The Tergitol.TM.15-S series of surfactants comprises C ₁₁-C ₁₅The secondary alcohol polyglycol ether.The Brij.TM58 surfactant is polyoxyethylene (a 20) hexadecane ether, and the Brij.TM.76 surfactant is polyoxyethylene (a 10) stearyl ether.

Other suitable non-reacted nonionic surface active agent includes, but are not limited to those the 1 mole of alkyl phenols that is selected from the 6-12 carbon atom of having an appointment containing of straight or branched configuration and the polyoxyethylene alkene condensate of about 3-100 moles of ethylene oxide.The example of non-ionic surface active agent produces lgepal.TM.CO and CA series for Rhone-Poulenc company.The lgepal.TM.CO surfactant comprises that Nonylphenoxy gathers (oxygen ethene) ethanol.The lgepal.TM.CA surfactant comprises that octyl group benzene oxygen gathers (oxygen ethene) ethanol.

The useful non-reacted nonionic surface active agent of another group includes, but are not limited to the block copolymer that those are selected from oxirane and expoxy propane or epoxy butane.

The example of these non-ionic block copolymer surfactants is that BASF AG produces Pluronic.TM. and Tetronic.TM. series of surfactants.Pluronic.TM. surfactant comprises ethylene oxide-propylene oxide block copolymer.Tetronic.TM. surfactant comprises ethylene oxide-propylene oxide block copolymer.Suitable example is Pluronic L68 and Tetronic 1307.Specially suitable example is PluronicL64 and Tetronic 1107.

Also have other gratifying non-reacted ionic surfactant pack to draw together, be selected from fatty acid esters of sorbitan but be not limited to those, polyoxyethylene sorbitan fatty acid ester and Myrj 45.The example of this class fatty acid ester nonionic surface active agent produces Span.TM. and Tween.TM. and Myrj.TM. surfactant for ICI company.Span.TM. surfactant comprises C ₁₂-C ₁₈The anhydro sorbitol monoesters.Tween.TM. surfactant comprises poly-(oxygen ethene) C ₁₂-C ₁₈The anhydro sorbitol monoesters.Myrj.TM. surfactant comprises poly-(oxygen ethene) stearate.

The suitable anion surfactant generally comprises the hydrophobicity part, and this part is selected from about C ₆-C ₂₀Alkyl, alkaryl and alkenyl, and anionic group is selected from sulfate radical, sulfonate radical, phosphate radical and polyoxyethylene sulfate radical, polyoxyethylene sulfonate radical, the alkali metal salt of polyoxyethylene phosphate radical and this anionoid group, ammonium salt and tertiary ammonium salt.

The anion surfactant that the present invention adopts includes, but are not limited to those and is selected from and contains the C that has an appointment ₆-C ₂₀Alkyl or alkaryl sulfate or sulfonate, as NaLS (Srepan company produce Polystep.TMB-3) and neopelex (Siponate.TM.DS-10 of Rhone-Poulene company product); Polyoxyethylene (about C ₆-C ₂₀) alkyl or alkyl phenol ether sulfate, the oxirane repetitive is lower than about 30 in surfactant, preferablely be lower than approximately 20, it is about 15 that the best is lower than, as available from the Polystep.TM.B-1 of Stepan company with available from the Alipal.TM.EP110 and 115 of Rhone-Poulene company; About C ₆-C ₂₀Poly-(oxygen ethene) the ethyl phosphonic acid monoesters of alkyl or alkyl phenoxy and diester and its salt, the oxirane repetitive is lower than in about 30 in surfactant, preferablely is lower than approximately 20, and it is about 15 that the best is lower than, the Gafac.TM.RE-510 and 610 that produces as GAF.

The cationic surfactant that the present invention adopts comprises, but be not limited to those and be selected from quaternary ammonium salt, wherein at least one higher molecular weight group and two or three lower molecular weight groups are connected on the common nitrogen-atoms and form cation, and the anionic group that plays the electric charge balanced action is selected from halogen ion (bromide ion, chlorion etc.), acetate nitrite anions and sulfuric acid lower alkyl ester root (Methylsulfate root etc.).Higher molecular weight substituting group on the nitrogen-atoms usually is the senior alkyl that contains about 10-20 carbon atom, and the lower molecular weight substituting group can be the lower alkyl group that contains about 1-4 carbon atom, and as methyl or ethyl, it sometimes can be replaced by hydroxyl.One or more substituents can comprise aryl moiety, also can be by aryl such as phenyl or benzyl replacement.

In the good especially example of the present invention, surfactant comprises a kind of expoxy propane/epoxyethane block copolymer at least, for example the commodity that provide of BASFPlc company Pluronic L64 by name.Desirable reactant mixture comprises the surfactant of the 0.1%-5% (w/w) of reactant mixture.

Surfactant plays the skin delipidation, and makes the grease of removing form capsule and in hydrogel, can not cause the coating cohesive to descend.

Other universal additive known in the art is also contained in the adhesive composition as anticorrisive agent, antioxidant, pigment, inorganic filler and composition thereof, and every kind of consumption is up to 10% (w/w) separately.

According to the present invention, in order to form three dimensional matrix, the polymers compositions of adhesive can be physics or chemical crosslinking.Physical crosslinking means crosslinked polymer not by chemical covalent bond, but by its physical property, promptly three dimensional matrix has the high crystalline zone, or has the zone of high glass-transition temperature.It is crosslinked by chemical bond that chemical crosslinking means polymer.Polymer is preferably by irradiation technique, as carrying out chemical crosslinking under heating, electron beam, ultraviolet ray, gamma-radiation or the microwave irradiation.

In addition, when in system, carrying out chemical crosslinking, can in pre-composition, can exist multifunctional crosslinking agent and/or radical initiator under irradiation, to cause cross-linking reaction.The amount of this initator reaches as high as 5% (w/w), is preferably 0.02%-2%, and is best at 0.02%-0.2%.Suitable light trigger comprises 1-alpha-alcohol ketone and benzil dimethyl ketal, is considered to generate benzoyl radical and initiated polymerization under irradiation as Irgacure 651.This photoinitiator is preferably in the contraposition of aromatic ring and is not with any substituting group.1-hydroxy-cyclohexyl phenyl ketone (available from Ciba specialty chemicals company, trade name Irgacure184) preferably also has the preferably mixture of Darocur1173 (2-hydroxyl-2-butyrophenone) and Irgacure184 and Darocur1173.In addition, also can use the thermal initiator of 0.02%-2% (w/w).

The adhesive composition that forms mainly is hydrophily.Hydrophobicity with mix phase composition and depend on the character of this adhesive component.In addition, the mixture of monomer is no matter it is hydrophily or hydrophily all can produce mixing single-phase or two-phase at least mutually with hydrophobicity.Preferably, adhesive of the present invention be hydrophily with the mixing of hydrophobicity mutually.

Can generate one, two or more heterogeneous monomer mixture preferable.Mixing bonding dose is to be preferably in plasticizer and polymer hydrophobic and the hydrophilic component in the two to form two kinds or more kinds of independent composition mutually.In this case, preferably add an amount of emulsifying agent, so that between inconsistent phase, form stable emulsion.

Do not plan to be subjected to theory, can think and improve adhesive liquid phase stability after the peel strength, particularly the stability to water is from comprising hydrophily, as polarity and/or ionic comonomer, preferably ionic water-soluble monomer and hydrophobicity, promptly the mix monomer of water insoluble monomer obtains.The ratio of hydrophilic monomer and hydrophobic monomer should be 5: 1-1: between 5, preferable 3: 1-1: between 3, best 2: 1-1: between 2.The hydrophily of monomer component and hydrophobicity are always for other component.Common hydrogel adhesive of the prior art only contains hydrophilic monomer, thereby these adhesive rate of water absorption height, and does not keep bonding in the presence of excess liq.Do not plan to be subjected to theory, can think and contain hydrophobic components in the adhesive stroma, can reduce this adhesive rate of water absorption.As a result, this adhesive water absorption distributes and more becomes even.Between skin surface and the adhesive, can not form water membrane like this.If any, can stop combining of forming between skin and the adhesive, and then reduce the adhesive power of adhesive itself.

Therefore, the present invention seeks to provide a kind of hydrophobic components that both contained, and contain the homodisperse reactant mixture of hydrophilic component again, and they is to be divided into two-phase or heterogeneous system structure when polymerisation.Described phase has been observed about 100 ± 50 μ m of its thickness in some scenarios.Reactant mixture can contain one or more surfactants, assists or promotes to be separated, but can anisotropically be distributed between the formed phase in the polymerisation process.

For more effective promotion is separated, it is necessary having hydrophobic monomer or polymer in initial homogeneous dispersion.

It is considered herein that: the material that is separated contains the zone of relative hydrophobic and hydrophilic basically zone, relatively the zone of hydrophobic.Can make polymer play the contact adhesive effect, and hydrophilic basically zone can make surfactant on interface between polymer and the mammal skin, works in aqueous environment.Place the place that contacts with skin when polymer, then the selection of the property quality and quantity of surfactant will make natural or manually synthetic hydrophobic material, protects cream as sebum or skin and breaks away from and be reduced in adhesive function between hydrophobicity microcell and the skin surface from skin surface.Because the polymer adhesive that the present invention forms all is deformable under the normal use condition with the skin that contacts with it, therefore reach a kind of balance state of interface, some space exchanges of hydrophobic regions and hydrophobic regions wherein can take place on skin surface.

Preferable suitable hydrophilic monomer is acrylic acid and its esters, 2-acrylamido methyl propane sulfonic acid, acrylic acid (3-sulfo group third) ester acid and its esters, and their mixture.Good especially example is 2-acrylamide-2-methyl propane sulfonic acid sodium salt, promptly is commonly referred to as NaAMPS, available from 50% aqueous solution of Lubrizol company (reference number: LZ2405) or 58% solution (reference number: LZ2405A).The methyl esters that suitable hydrophobic monomer component is acrylic acid and methacrylic acid, ethyl ester, positive butyl ester, own ester, different monooctyl ester and isodecyl ester, vinethene, vinyl pyrrolidone, glycidyl acrylate and acrylic acid ethoxy ethyl ester, tetrahydrofurfuryl acrylate, hydroxypropyl acrylate, propionate and vinyl butyrate and their mixture.Good especially is acrylic acid ethoxy ethyl ester or butylacrylic acid butyl ester.

When adhesive comprises hydrophobic components, as butyl acrylate, and hydrophilic monomer (pointed water-soluble ionic-type monomer promptly) is as NaAMPS, non-ionic water-soluble monomer then, existence as NNDMA, it plays so-called " active solvent bridge " (reactive solvent bridge ") effect, makes those look inconsistent that each component of reactant mixture can evenly mix eventually before polymerisation.Reactant mixture has and not only contains hydrophilic component but also contain hydrophobic components like this, and mixed uniformly homogeneous system, as NNDMA during as the solvent of hydrophily and hydrophobicity material, forms a kind of transparent compatible masking liquid or dispersion.Because the active solvent bridge is polymerization, therefore from reactant mixture, to remove basically, system stability affects adversely, and compatible masking liquid or dispersion can experience and be separated, thereby have formed two phase structures.

In the better embodiment of the present invention, above-mentioned non-ionic water-soluble monomer will comprise at least a single or two-N-alkyl acrylamide or their analog." analog " refers to the non-ionic water-soluble monomer that contains alkyl or be connected to the substituted alkyl of the two keys of C=C by acylamino-or alkyl amido (CO, NH-or-CO, NR-) herein.The example of this class analog comprises DAAM (N-1,1-dimethyl-3-oxo butyl acrylamide), N-alkylation acrylamide, N, N dialkyl group acrylamide, N-vinyl pyrrolidone and acryloyl morpholine.N, N, DMAA (NNDMA) and/or its analog are preferable.Reactant mixture slightly contains the non-ionic water-soluble monomer of about 15%-30% (w/w) of reactant mixture weight, and is desirable between about 15%-25% (w/w).

Here " the active solvent bridge " of Cai Yonging refers to part oleophylic non-ionic water-soluble monomer, and it has certain distribution capability mutually and between the water at hydrophobic, makes before polymerisation begins, and hydrophobic monomer is dissolved in homogeneous reaction mixture basically.This solvent bridge is active, and promptly it is the polymerisable monomer that participates in polymerisation.Do not wish to be subjected to theory, think this non-ionic water-soluble monomer the solvent bridge mainly before polymerisation or the reaction commitment play a role, carry out with polymerisation, effect reduces.

When preparation adhesive composition of the present invention, usually each component is mixed into homogeneous reaction mixture earlier, form bedroom pregel water fluid preparation, convert gel to by Raolical polymerizable then, this for example can adopt conventional thermal initiator and/or light trigger or be accomplished by ionizing radiation.Light-initiated is preferred methods, and after usually the reactant mixture of the pregel by will containing the appropriate light initator is coated on the peeling paper of silicidation or other solid substrate, shines through ultraviolet ray and carries out.The basic coideal of the intensity of incident ultraviolet ray in wavelength is 240-420nm scope ground is 40mW/cm ²Processing is carried out under slave mode usually, relates to accurately predetermined mixing and heat treatment order.

The time of ultraviolet irradiation ideally should be less than 60 seconds, and preferable less than 10 seconds, 95% above monomer changes into gel.The ultraviolet irradiation time is shorter than 60 seconds, preferably is shorter than 40 seconds, and conversion ratio is higher than 99.95%.Those skilled in the art can be appreciated that the irradiation degree will depend on the thickness of reactant mixture one's own profession, the concentration of light trigger and the base material character that is used for the application of reactive mixture, and ultraviolet light source.

These exposure times are that centering presses the ultraviolet source of mercury-arc lamp to work at 100W/cm.The intensity that ultraviolet ray records on the substrate surface at 254nm and 313nm place is about 150 μ W/cm respectively ²With 750 μ W/cm ²For given UV lamp, its uitraviolet intensity will be with when work power, and reactant mixture becomes from the distance of UV light source.

In order to reduce and preferably eliminate the existence of any residual monomer, importantly guarantee to react completely.It depends on Several Factors, as the base material of coating adhesive, and the type of UV light and intensity, and ultraviolet irradiation amount.Conversion ratio such as the hydrophilic monomer of NaAMPS should be 98%, is preferably 99%, and the best is 99.9%; Amount of monomer is 4600 μ g/g or still less in the adhesive like this, is preferably 2300 μ g/g or still less, and the best is 230 μ g/g or still less.Hydrophobic monomer such as NNDMA also has similar situation, and its conversion ratio is 99%, is preferably 99.9%, and the best is 99.99%; Amount of monomer is 2200 μ g/g or still less in the adhesive like this, is preferably 220 μ g/g or still less, and the best is 22 μ g/g or still less.

Therefore, adhesive is that even aqueous reaction mixture forms through polymerisation.This reactant mixture comprises hydrophilic monomer (being the ionic water-soluble monomer), plasticizer (except the water), non-ionic water-soluble monomer and water.The amount of hydrophilic monomer is between the 5%-50% of reactant mixture weight, and is preferable between 30%-50%; The weight of plasticizer is between the 10%-50% of reactant mixture weight, and is preferable between 15%-45%; The non-ionic water-soluble monomer is up to 50% of reactant mixture weight, and is preferable at 10%-50%, is more preferably under 15%-30%, best at 15%-25%; Water is up to 40% of reactant mixture weight, and is preferable at 0.05%-40%, best at 3%-40%.If any, reactant mixture also comprises surfactant, and the amount of surfactant is up to 10% of reactant mixture weight, and is preferable at 0.05%-9%, best 8%.Similarly, this reactant mixture also comprises the lipoid bundle gelatinate polymer of the 0.1%-5% of its weight, and at least a hydrophobic monomer of the 1%-30% of reactant mixture weight.

Here " evenly aqueous reaction mixture " term that adopts means the system of dissolving basically, before polymerisation, does not have the appearance that is separated in liquid system.For example, carry out the emulsion of polymerisation subsequently, microemulsion or branch phase mixture can not be understood as even aqueous reaction mixture in the present invention.Therefore when reactant mixture comprises hydrophobic components, require to carry out particular assay, to obtain uniformity.This paper can be described in more detail.

The surface characteristic of polymeric material

It is considered herein that: the polymeric material that is separated contains the zone of relative hydrophobic and hydrophilic basically zone at least on its surface, the zone of hydrophobic can make polymer play the contact adhesive effect relatively, and hydrophilic basically zone can make surfactant on interface between polymer and the mammal skin, works in aqueous environment.Place the place that contacts with skin when polymer, then the selection of the property quality and quantity of surfactant will make natural or manually synthetic hydrophobic material, protects cream as sebum or skin and breaks away from and can reduce the adhesive function of polymer between hydrophobicity microcell and skin surface sharply from skin surface.Because the polymer adhesive that the present invention forms all is deformables under the normal use condition with the skin that contacts with it, therefore reach a kind of balance state of interface, some space exchanges of hydrophobic regions and hydrophobic regions wherein will take place on skin surface.

The polymeric surface that is separated material mainly comprises the hydrophobic phase that is embedded in clearly in the hydrophilic matrix, and this hydrophilic matrix is mainly moisture.Hydrophobic is generally elongated shape mutually, and its lateral dimension is than light wavelength wide (as 0.5-100 μ m).Therefore, on the sample of using with the dyeing of the preferential mutually combination of hydrophobic, can see these hydrophobic phases at microscopically.

The configuration of surface of elongated hydrophobic phase is changeful.Do not wish to be subjected to theory, think that hydrophobic/hydrophilic surface tension at the interface changes with the progress of polymerisation, can cause that its form changes in final polymer.But the influence of this surface tension receptor 1 activity solvent bridge and surfactant properties and consumption and other factors.

Therefore, might assemble by cluster mutually at the elongated hydrophobic on polymeric material surface, or open (open) relatively and arrange.The being seen hydrophobic phase of microscope for example looks like the interrupted wire and/or dendritic twisted wire or the closed loop that embed in the hydrophilic matrix.

Usually, polymeric material is non-co-continuous.Have at least one in polymeric material, to have locus of discontinuity in hydrophobic and the aqueous favoring, and two-phase not can with the time extend to whole polymeric material (co-continuous).

It is preferably constant that the adhesive that provides is coated at the thickness c of adhesive phase on device wearer's face one side at least a portion, or can change on the surface of coating adhesive.

When special consideration be fixed to wearer's skin adhesive composition peel off situation the time, everybody recognizes and is coated in the good condition that device is peeled off by the adhesive on wearer's face one side at least a portion, promptly at about 100rad/sec frequency place, when this adhesive can easily be peeled off from skin, and it is particularly have chaeta to peel off and to cause that the wearer keenly feels, thereby sticking sacrifices consisting of an ox, a sheep and a pig solid so that be difficult to when skin and wearer's hair are peeled off, could obtain from this position skin of device contacts.And, well peel off also mean not can be on skin or the hair place stay the residue of adhesive.

The thickness C of general adhesive phase on face's one side at least a portion of device, with the mm that records is unit, with this topical adhesive at 25 ℃, the viscous film amount G during about 100rad/sec " concern between 25 and provided a kind of index painless and release adhesive easily from the skin.

Do not wish to be subjected to theory, think for G " 25 under 100rad/sec high value corresponding to composition than high adherence; just need adhesive phase thicker; to peel off used energy like this and just more be evenly distributed in the adhesive material; thereby to be delivered to skin more smoothly, avoid the energy peak that causes that generally the wearer keenly feels.In other words, thin adhesive phase must be adhesive G under 100rad/sec " the 25 low pains that alleviate just can accomplish that device is peeled off the time.

Method of testing

The release adhesive method

This is a kind of quantitative approach, is determined to specify under peel angle and the speed, peels off the required average peeling force of skin.

Equipment

Scissors is gathered materials on the spot

Gauge is gathered materials on the spot

The heavy 5.0kg of steel pressure roller, diameter 13cm, width 4.5cm is coated with the thick rubber of 0.5mm.

Polyester film PET23 μ, the EFFEGIDI S.p.A.43052 of Italian Colorno is on sale

Transfering adhesive 3M 1524, the 3M Italia S.p.a.20090 of Italian Segrate is on sale

Stopwatch is gathered materials on the spot

Cupping machine Instron 6021 types (or equivalent product)

Testing procedure

A) cupping machine is peeled off setting:

Load cell 10N

Test speed 1000mm/min

Between the anchor clamps apart from 25mm

Preposition load 0.2N

Test path " LM " 50mm

F mean value (N) in the measurand " LM "

B) skin condition and preparation

Sample is peeled off from forearm, tests three kinds of skin conditions:

1) dryness: forearm is unprocessed, does not also do wiping before the test or between the secondary repetition.

2) moist: add 3ml distilled water on cotton dish (cotton disk) (Demak ' up diameter 5.5cm, a heavily about 0.6g), next step coils wiping gently three times at forearm test position with this cotton.(forearm test position is that specific viscosity mixture district is wide and be about the rectangle of 2cm).

3) oiliness: a cotton dish (Demak ' up diameter 5.5cm, heavily about 0.6g) adds 4 NeviaBody (about 0.2g) on, then it has been folded guaranteeing absorption of N evia cream next step wiping three times gently (forearm test position is that specific viscosity mixture district is wide and be about the rectangle of 2cm) at forearm test position.

C) sample preparation

1. sample is placed the air conditioning chamber to regulate about 1 hour (23 ± 2 ℃, relative humidity 50 ± 2%).

2. prepare rectangle adhesive sample (long 260mm ± 2mm, wide 20mm ± 2mm).

3. polyester film is attached on the sample surfaces and (adopts biography to move adhesive polyester is fixed on substrate surface).

4. each specimen needs preparation separately, and measures immediately.

5. throw off peeling paper from adhesive, do not touch it.The one end is fixed on the skin (sees the B part).

6. use the steel pressure roller along strip of glue roll-in 160mm, each direction once.

D) test environment

Adhesive can be tested under two kinds of environment:

1) as the described air conditioning chamber of C1.

2) wet environment: after the C4 step, the stove that sample places controlled humidity was assigned 3 hours in 85 ℃, took out then, carried out C5, the C6 step.

E) carry out action

C6 goes on foot back 1 minute, holds sample free end (about 100mm is long), and is inserted into the upper end of adhesion test machine, keeps sample front arm at an angle of 90.Start this testing machine.

F) report

The mean value of 5 peel strength tests of record, the single value is the foundation of standard deviation between the calculation sample.

The residual monomer method of testing

Specimen

Get the 1g hydrogel sample, be immersed in 100ml 0.9% salt solution.Sample was placed 24 hours in 40 ℃ salt solution.To wait the branch liquid diluting and carry out electron spray (LC/MS) analysis.

Correcting sample

1g reference monomer (as NaAMPS) is dissolved in 1000ml 0.9% salt solution.

To wait the branch liquid diluting and carry out electron spray LC/MS analysis.

Estimate

Measure the concentration of specimen and correcting sample, adopt software such as VGMass Lynx to carry out linear regression analysis.

Embodiment

Following all preparations are coated on the polyurethane foamed material (Caligen produces EV1700x).Coating weight is 0.8-1.6kg/m ², then with in press mercury-arc lamp irradiation 10 seconds under the ultraviolet ray of 100W/cm power work.

Embodiment 1

With 6.0g Irgacure 184 and 20g IRR280 (PEG400 diacrylate, UCB produces) (solution A).23.5g NNDMA is added 0.07g Irgacure 184, stirred (container is added a cover lucifuge) 1 hour.Add the 30g glycerine, stirred 5 minutes; Add 40g NaAMPS (58%) again, stirred again 5 minutes.Add the 0.13g solution A, before use whole preparation was stirred 1 hour at last.

Embodiment 2

With 6.0g Irgacure 184 and 20g IRR280 (PEG400 diacrylate, UCB produces) (solution A).23.5g NNDMA is added 0.07g Irgacure 184, stirred (container is added a cover lucifuge) 1 hour.Add 10g Mowilith DM137 (dispersion of 50% vinyl-vinyl acetate copolymer in water, Harco produce) inward and stirred 5 minutes, add the 30g glycerine again and stirred 5 minutes, add 40g NaAMPS (58%) then, stirred again 5 minutes.Add the 0.13g solution A, before use whole preparation was stirred 1 hour at last.

Embodiment 3

With 6.0g Irgacure 184 and 20g IRR280 (PEG400 diacrylate, UCB produces) (solution A).23.5g NNDMA is added 0.07g Irgacure 184, stirred (container is added a cover lucifuge) 1 hour.Add 10g Mowilith DM137 (dispersion of 50% vinyl-vinyl acetate copolymer in water, Harco produce) inward and stirred 5 minutes, add the 30g glycerine again and stirred 5 minutes, add 40g NaAMPS (58%) then, stirred again 5 minutes.Add 0.5g Pluronic L64 (poly-(ethylene glycol)-poly-(propane diols)-poly-(ethylene glycol) block copolymer, BASF is on sale).Add the 0.13g solution A, before use whole preparation was stirred 1 hour at last.

Embodiment 4

With 6.0g Irgacure 184 and 20g IRR280 (PEG400 diacrylate, UCB produces) (solution A).23.4g NNDMA is added 0.07g Irgacure 184, stirred (container is added a cover lucifuge) 1 hour.Adding 2g Mowilith DM137 (dispersion of 50% vinyl-vinyl acetate copolymer in water, Harco produces) inward stirred 5 minutes.Add the 36g glycerine again and stirred 5 minutes, add 40.36g NaAMPS (58%) then, stirred again 5 minutes.Add 0.25g Pluronic L64 (poly-(ethylene glycol)-poly-(propane diols)-polyethylene glycol) block copolymer, BASF is on sale).(sodium-salt aqueous solution of styrene-maleic acid copolymer (Aldrich product) stirred 10 minutes to add 0.8g 30% poly-inward.Add the 0.13g solution A, before use whole preparation was stirred 1 hour at last.

Embodiment 5

With 6.0g Irgacure 184 and 20g IRR280 (PEG400 diacrylate, UCB produces) (solution A).23.4g NNDMA is added 0.07g Irgacure 184, stirred (container is added a cover and kept away) 1 hour.Adding 10g Mowilith DM137 (dispersion of 50% vinyl-vinyl acetate copolymer in water, Harco produces) inward stirred 5 minutes.Add the 36g glycerine inward, stirred 5 minutes, add 40.36gNaAMPS (58%) again, stirred again 5 minutes.Add 0.25g Pluronic L64 (poly-(ethylene glycol)-poly-(propane diols)-poly-(ethylene glycol) block copolymer, BASF is on sale), (Aldrich produces, and stirs 10 minutes to add poly-(styrene-maleic acid) alternate copolymer sodium-salt aqueous solution of 0.8g 30% inward.Add the 0.13g solution A, before use whole preparation was stirred 1 hour at last.

Embodiment 6

With 6.0g Irgacure 184 and 20g IRR280 (PEG400 diacrylate, UCB produces) (solution A).23.4g NNDMA is added 0.07g Irgacure 184, stirred (container is added a cover lucifuge) 1 hour.Adding 10g Mowilith DM137 (dispersion of 50% vinyl-vinyl acetate copolymer in water, Harco produces) inward stirred 5 minutes.Add the 36g glycerine inward, stirred 5 minutes, add 40.36gNaAMPS (58%) again, stirred again 5 minutes; Add 0.5g Pluronic L64 (poly-(ethylene glycol)-poly-(propane diols)-poly-(ethylene glycol) block copolymer, BASF is on sale), add poly-(styrene-maleic acid) alternate copolymer sodium-salt aqueous solution (Aldrich product) of 0.8g 30% inward, stirred 10 minutes.Add the 0.13g solution A, before use whole preparation was stirred 1 hour at last.Optics degree of comparing microscope shows that the gel of generation has the surperficial (see figure 1) that is separated normally.

Embodiment 7

With 6.0g Irgacure 184 and 20g IRR280 (PEG400 diacrylate, UCB produces) (solution A).23.4g NNDMA is added 0.07g Irgacure 184, stirred (container is added a cover lucifuge) 1 hour.Adding 20g Mowilith DM137 (dispersion of 50% vinyl-vinyl acetate copolymer in water, Harco produces) inward stirred 5 minutes.Add the 36g glycerine inward, stirred 5 minutes, add 40.36gNaAMPS (58%) again, stirred again 5 minutes; Add 0.5g Pluronic L64 (poly-(ethylene glycol)-poly-(propane diols)-poly-(ethylene glycol) block copolymer, BASF is on sale), add poly-(styrene-maleic acid) alternate copolymer sodium-salt aqueous solution (Aldrich product) of 0.8g 30% inward, stirred 10 minutes.Add the 0.13g solution A, before use whole preparation was stirred 1 hour at last.

Embodiment 8

Add 40.4 parts of 58%2-acrylamido-2-methyl propane sulfonic acid sodium solution (NaAMPS) in the part glycerine (LZ2405A) and 0.5 part of Pluronic LF64 (BASF), solution stirs until even mixing.In this solution, add 0.13 part of solution, this solution contains 20 parts of polyethyleneglycol diacrylates (PEG600) and (is produced by chemical company, commodity are called Ebacryl 11), wherein 6 parts of 1-hydroxycyclohexylphenylketones (Ciba company produces, and commodity are called Irgacure 184) are dissolved in it.To contain 8 parts of butyl acrylates and 15.7 parts of N, the solution likely of N DMAA (Kohjin) is added in this reactant mixture.As embodiment 1, this solution finally solidifies through ultraviolet irradiation.Optics degree of comparing microscope shows that the gel that produces has be separated normally surface and the cohesive (see figure 2) that has strengthened the skin that the previous Nevia of using cold cream was handled.

Embodiment 9

Add in 30 parts of glycerine 0.5 part of 30% poly-(styrene-maleic acid) alternate copolymer sodium salt solution (Aldrich products) and 40 parts of 58%2-acrylamido-2-methyl propane sulfonic acid sodium solutions (NaAMPS) (LZ2405A) with 0.5 part of Pluronic P65 (BASF), solution stirs until even mixing.In this solution, add 0.13 part of solution, this solution contains 20 parts of polyethyleneglycol diacrylates (PEG600) and (is produced by the UCB chemical company, commodity are called Ebycryl 11), wherein 6 parts of 1-hydroxycyclohexylphenylketones (Ciba company produces, and commodity are called Irgacure 184) are dissolved in it.To contain 6 parts of acrylic acid ethoxy ethyl esters and 18 parts of N, N DMAA (Kohjin) is added in this reactant mixture.As embodiment 5, this solution finally solidifies through ultraviolet irradiation.Optics degree of comparing microscope shows that the gel that produces has the surface that is separated normally (seeing Fig. 7 and following relevant discussion part).

The result

	The experimenter 1			The experimenter 2
							Embodiment	Dryness (PDI)	Oiliness (PGI)		Dryness (PDI)	Oiliness (PGI)
		????1min	????10min		????1min	????10min
							????1	????1.75	????0.13	????-	????1.57	????0.19	????-
????2	????2.96	????0.16	????-	????3.18	????0.44	????-
							????3	????2.81	????0.52	????0.33	????2.46	????0.67	????0.61
????4	????0.81	????0.15	????0.26	????0.96	????0.29	????0.47
							????5	????1.2	????0.52	????0.69	????2.2	????0.83	????0.88
????6	????1.6	????0.45	????0.6	????2.2	????0.64	????0.56
							????7	????1.2	????0.49	????0.62	????1.6	????0.74	????0.88

Microscope

Embodiment 6,8, the LeitgDialux20 microscopic examination that has " Wild MPS Photoautomat " camera accessories of 9 gel.Adorn 12.5 times of eyepieces on the microscope.Image amplifies by one group of object lens, and using object lens usually is 4 times, and 10 times (Phaco) and 25 times (Phaco) adopts the illumination of degree of comparing and bright field.

Dyeing

The sample of embodiment 9 dyes before the microscopic examination carrying out.Use the saturated solution of bromo pyrogallol red, make the hydrophobic difference district dyeing of hydrogel surface at methyl alcohol.This solution is added on the sample surfaces, uses the superfluous dye solution of methyl alcohol flush away then, and solid dye.

Be the standard of selecting dyestuff for use below.

Make these gels more the selecting for use of dyeing of hydrophobic regions or more hydrophilic area difference dyeing be subjected to influence of various factors, this point can be by to relatively being illustrated of bromo pyrogallol red and uranine, these two kinds of dyestuffs are used in the degree difference of admitting or keeping in the different polymer.Two principal elements are electric charge and hydrophobicity.The bromo pyrogallol red mainly contains acid-SO ₃H and-the COOH group, and uranine mainly contains slightly acid-COOH group.The polymer basic region has maximum affinity to acid dyes, and acidic region to the affinity of acid dyes slightly a little less than.The moisture content that can also observe material is higher, and it is faster to draw amount of dye.The situation of common hydrogel is that the moisture content of material is higher, often contains the N-vinylpyrrolidone or the N,N-DMAA group that are alkalescence slightly, and they can attract to contain acid as-SO ₃H and-the COOH group.

Except the Acidity of Aikalinity of dyestuff and polymer, the distribution coefficient of dyestuff also remains with appreciable impact to dyestuff in material.This character can adopt conventional common measuring method to characterize, and measures the distribution coefficient (KOW) of dyestuff between hot alcohol and water and gets final product.The logKOW=-0.49 of bromo pyrogallol red, and the logKOW=-0.98 of uranine.These two kinds of dyestuffs can both distribute between the water component of used polymer and nonaqueous phase component.

Yet, to compare with the uranine of hydrophilic environments more, the bromo pyrogallol red is than more aqueous favoring may closeer more hydrophobic case.This preferential selectivity can be passed through following statement of facts, promptly common N-vinyl pyrrolidone or N, the easy about 30% bromo pyrogallol red of occlusion in polymer network structure of the hydrogel of basic acrylamido among the N-two.

The bromo pyrogallol red is to hydrophobic regions high-affinity and colour generation is darker more, and it makes it be more suitable for indicating the hydrophobic regions on polymer gel surface and the existence of hydrophilic area by difference dyeing than uranine in the solubility of methyl alcohol.

Cover layer

The most handy cover layer of adhesive of face's one side existence of face shield (10) covers before use, and this cover layer for example can be to be a stripping film (40) or paper at least, as the paper of silicidation.

According to the present invention, found to be preferably wearer's respiratory apparatus utensil at least two layers of stripping film (40) are provided.

Better this class stripping film (40) extends to filter course (30) from the outer rim (24) of flange (20), preferably arrives the mid point of face shield (10).This embodiment can be allowed and begins from the center, rather than be peeled off stripping film (40) from the outer rim of face shield (10).

In the best mode for carrying out the invention, the stripping film that provides (40) has straight flange, and best is the longitudinal axis that it is parallel to face shield.This embodiment is shown in Fig. 3.

Also preferably, the stripping film that provides (40) has cover layer stack, and at least a portion of at least one stripping film is with the adhesive contact like this, impel peel off easier.The exterior contour of stripping film (40) can be got the identical shape of outer rim (24) of flange (20), maybe can get other shapes of being convenient to produce.

Find, according to face shield provided by the invention (10), if the contact of the adhesive of flange (20) at first is formed at wearer's nose with Chin portion zone is formed at cheek and corners of the mouth zone again and then fits most the most comfortable.This symmetry of being convenient to face shield (10) applies, so the longitudinal axis of face shield (10) is consistent with the wearer's face symmetry axis.In this better embodiment, as described above have at least two stripping films to apply face shield (10) for the wearer.

As disclosed herein, when the cover layer that is used for (10) at least two stripping films of face shield (40) and is provided is very useful.Such cover layer also can be used for other utensil that is used for hiding wearer's respiratory apparatus.This appliances comprises snore-proof device, and is for example disclosed in the EPO of pending trial patent application 00120457.7 (acting on behalf of number of documents CM 2409 FQ).

Claims (12)

1. a breathing mask (10), it comprises flange (20) and air control module (30), described flange (20) has inner edge (22) and outer rim (24), and between described inner edge (22) and described outer rim (24), first width and second width with described inner edge (22) quadrature place records is characterized by: described first width is greater than described second width.

2. breathing mask as claimed in claim 1 (10) is characterized by: first width is bigger by 10% than described second width at least.

3. as the described breathing mask of any one claim of front (10), it is characterized by: described first width is at nose middle part (26) with/Huo Chin middle part (29) records.

4. as the described breathing mask of any one claim of front (10), it is characterized by: described second width is that (27) and/or corners of the mouth part (28) records in the cheek.

5. as the described breathing mask of any one claim of front (10), it is characterized by: extending apparatus (32) is arranged on the described air control module (30).

6. as the described breathing mask of any one claim of front (10), described flange comprises wearer's face one side and the outside, it is characterized by: wearer's face one side of described flange (20) has an adhesive phase.

7. breathing mask as claimed in claim 6 (10) is characterized by: described adhesive is a hydrogel adhesive.

8. breathing mask as claimed in claim 7 (10), it is characterized by: described adhesive is water-fast contact adhesive basically, this adhesive comprises the polymer that forms three dimensional matrix, and comprises below 10% of described binder wt, preferable hydrogel particle below 5%.

9. breathing mask as claimed in claim 7 (10) is characterized by: described adhesive comprises:

-be selected from the polymer of acrylic polymer, sulfonated polymer, vinyl alcohol, ethene pyrrolidines, PEO or their mixture, and

-be selected from the plasticizer of polyalcohol, polyethylene glycol, sorbierite, water or their mixture.

10. control the device that sucks air for one kind, such as the breathing apparatus, it comprises as the described breathing mask of any one claim of front (10).

11. a device of analyzing the exhalation air, such as alcohol tester, it comprises as the described breathing mask of any one claim of front (10).

12. cover the device (10) of wearer's respiratory apparatus, described device has wearer's face one side and the outside, described wearer's face one side comprises many continuous adhesive layers, it is characterized by: each described continuous adhesive layer is coated with at least two stripping films (40).

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