DE1911490A1 - Remoistenable adhesive for rubber linings - Google Patents

Description

191H90

PATENT LAWYERS.

OriS. ■ DIPL.-ING. GFlALFo Küncheii, the o. Harz DR. M / M! TZ-DH.DEUFEL G 200b

8 MCMGrIcN 22, RCBCP.T-KOGH-STa t
TELErCM 225110

GORW PRODUCTS COMPANY

International Plaza,

Englewood Cliffs, New Jersey 0703J,

United States

Remoistenable adhesive for waterproofing

PRIORITY; USA dated March 6, 1968, Serial Ko-. 710 774

The present invention relates to a moisturizable device Starch adhesive for gumming, which is made by ' Combination of ungelatinized chemically modified Starch, hide glue, a plasticizing agent, and water and heating sufficient to gelatinize the starch is obtained. Suitable strengths are which are free from "set-back" after gelatinization in water. Suitable hide glues have a gel strength " of at least 100 g. After applying to a carrier " germ material, drying and re-moistening result with the adhesive excellent values in terms of Comparison of open time, setting time and MCLaurine test to animal glue.

The term "rewettable adhesive" is used here for an adhesive used for a material like Paper or fabric, used as a cover and dried. When re-moistened, the adhesive develops quick tack and acts as a binder to bond the coated material to another material. Examples of the use of rewettable Adhesives are gummed labels, gummed adhesive tapes, Reinforced rubberized. Adhesive tapes and other products.

. BATH ORIGINAL

The industry uses certain criteria - to determine the qualities of a rewettable lei preparation, these criteria are: open time, setting time, ilocic behavior, waves in the wet and dry state, G-lans, Lc. Laurin test. The most important values in the context of the present invention are the setting time, the open time and the Mc Laurin test.

The setting time refers to the shortest time necessary to achieve a fiber-pulling effect on a base after moistening and using the adhesive-coated JU material. Under the "open time" is defined as the longest time can be kept adhesive-one wiederbefeuchteter%, until he comes for use, and still exerts a fiber-withdrawing effect. Ideal refillable adhesives have both a short set time and a long open time. The 1.1c. Laurine values allow conclusions to be drawn about the shear strength and the initial adhesive formation. If the adhesive or adhesive strip is re-moistened and is used on the base, it must - in other words - not slide or slip in any direction. The Hc. Laurin values reflect the non-slip properties of an adhesive preparation immediately after contact with the substrate. High Mc Laurin values indicate little or no shearing.

As highly water-soluble for a remoistenable adhesive Raw materials are required, the industry has long been Zeit believed that dextrins and / or animal glues alone or in combination are the only useful materials for remoistenable adhesives. First More recently it has been found that vegetable raw materials, such as starch, can also be used as re-moistenable adhesives are. Although a number of such starch adhesives has been developed, could not so far in comparison with animal glues the necessary values for

0098 1 3 / 1V9 1 BAD ORIGINAL

I lit

'(ti 11) I.

open time and setting time and equal or better

Mc. Laurin values can be achieved. ..

The present invention is therefore a reflammable adhesive preparation containing vegetable substances, the sufficient fourth for the open time and. gives the setting time and at the same time to Mc.Laurin-iVerten which are comparable to those of animal glue, in particular a remoistenable adhesive based on starch and hide glue, which is particularly suitable for the production of -.- * · Moistenable rubberized strips or adhesive strips are suitable. This adhesive essentially shows when rewetted no scissors.

The invention also relates to a method for production an adhesive composition known to be rewettable Glue can be used but it contains starch and retains the characteristics of a hide glue adhesive system,

Pas process year / for the production of a remoistenable adhesive is characterized in that ungelatinized starch, which is chemically modified to the extent that it is essentially free of "set-back" after gelatinizing in water, hide glue, the. has a gel strength of at least about 100 g, a plasticizing agent and water mixed together in such amounts be, daii the ratio of the sum of strength and hide glue to the plasticizing agent exceeds about 4 * 1 and the resulting mixture about 30 to about 70 wt.> Contains solids, and daii the mixture on one for gelatinization the starch is heated to a sufficient temperature.

The new type of adhesive preparation or base mix that is used for remoistenable adhesive with improved vision properties.

0 0 9 8 1 3/1491 ^B * D original,

is, confesses a ^ is an ungelatinized, starch that goes so far chemically modified is that after ΰ-elatinizing in What f.! it is essentially free of "set-back", made of hide glue, the. has a gel strength of at least 100 g., from a plasticizing agent and water in such amounts, that the ratio of the sum of starch and hide glue to the plasticizing agent exceeds about 4: 1 and the adhesive contains about 30 to about 70 wt. # pesticides and. has been heated to a temperature necessary for gelatinization the strength is sufficient.

Statement The invention is based on the fact that by using -

formation of a vegetable binding agent in combination with. ™ Hide glue the open time and the setting time of a rewettable Adhesive can be maintained while the Mc. Laurine levels are improved.

Suitable starches for the use according to the invention are ungelatinized starches which have been chemically modified to the extent that they are essentially free of "set-back" after gelatinization in water. Various types of starch are suitable for use, for example cereal starches such as corn, grain, sorghum and wheat starch, waxy starches such as waxy milo starch and waxy maize starch, and seasoning starches such as potato and tapioca starch. To the "Set-Back ä ¹¹ properties exclude the strength, it is necessary to modify the strength of the above three types chemically. Without suitable modification, the strength would gel or. · After-gelatinized increase in viscosity. This feature an unmodified Starch is referred to in the literature as “set-back.” In the context of the present invention, it is therefore necessary to modify the starch in order to make it stable against the set-back. In other words, it is achieved that the treated starch component in

09 813/1491 bad original

- 5 - 191H90

the finished adhesive is in liquid form before it is urgently needed

Corn starches can be modified by converting them into derivatives in order to achieve stability against set-back. Suitable Starch derivatives are, for example, starch ethers and starch esters.

Waxy starches are preferably subjected to a simple chemical conversion, for example acid modification or an ensym modification.

Some root strengths can be reduced by the chemical mentioned above Conversion, others by conversion into derivatives for the use can be made appropriate.

Under the name "ungelatinized, chemically modified Starch "includes all chemically modified forms and equivalents mentioned here., ^ I. ,,:;

Another transformation of the chemically modified ones defined here Strengths can, if necessary, be stable against set-back without changing the acquired property of strength to be done.

The glue from animal sources ^ which is particularly suitable for the use according to the invention is hide glue. Hide glue is obtained by extraction of animal hides with 7 / ater and subsequent Eonzentrieren to a .besonderen strength, which is referred to as gel strength or gel strength. Although the term "animal glue" includes bone glue, it has been found that bone glue is insufficient for the present invention. The terms "glue" or "hide glue ¹¹ " as used herein refer to hide glue having a gel strength of at least

009813 / U91 BATH ORIGINAL

".. - O -

1UO g. Uie jelly-like strength of glue, as evidenced by converiticrielle Metnoden is determined is a, Mau for that Slope of a gel made from a solution of a defined concentration under certain precisely prescribed conditions. Commercially available hide glues are priced classified according to their gel strength. Hide glues that for the present invention are particularly suitable a gall resistance of 200 g or higher. Commercial üautleime are available with a gel strength of up to approx. 450.

Suitable plasticizing agents are sorbitol, sodium nitrate, Urea, glycerine, glucose syrup and other well-known plasticizing, .littel, the at the same time moisturizing Eigenenscnaf- ™ have.

The order in which the components of the adhesive are mixed together is of secondary importance. One can, for example, first disperse the starch component in water and then add the plasticizing agent, and it is possible to add the hide glue before gelatinizing the starch. But it may also be desirable to first add together the starch with the water and gelatinize the starch to "before the plasticizing agent or hide glue is added. As has been found, any combination of mixing together. Erhiz- and i

zens suitable if the hide glue only after gelatinization the starch is added, it is recommended to mix the hide glue with some of the water and at a higher temperature dissolve up to about 66 C.

The ready-to-use adhesive contains about 50 to about 70 wt .-> Solids, and preferably between about 40 and about 60 Gev /.- Jb solids ·.

The finished adhesive has a viscosity in the range of about 500 to about 3000 centipoises, preferably between about 500 and about 2000 centipdses on.

0 0 9 8 1 3 / U 9 1

BATH ORIGINAL

The composition of the solids of the adhesive is characterized in that the ratio of the sum of starch taid hide glue to the plasticizing agent exceeds about 4% 1 and is preferably in the range from about 10 s 1 to about 30. % 1 »If the amount of skin Glue increased: if it is, it is desirable to also increase the proportion of plasticizing agent.

The lower the gel strength / fc of the hide glue is ₉ - the greater the proportion of hide glue required in relation to the starch component must be as a glue value ί

H Λ / "

ieimwert = _! -—- L ± JL

10

wherein s H = amount of skin glue in G-ewo ^ _s or weight parts, .. ¥ = amount of plant material (starch) in

. ■ Gew, / S or Gew _o files ₉ . _ ■ ...- ■ S = gel strength of the hide glue in g.

The glue value is sufficient if it is above about .2. Preferably it should be between about 2 and about IQ, and is cheapest. .a glue value of about 4 to about 6. This way you can at. a given amount of starch and a given gel strength of the hide glue

determine the amount of hide glue that is used for. a Glue value is required. Also you can do the -required; Calculate the amount of starch to add a certain glue value. hold if the G-allert strength. of hide glue. and the amount of hide glue are known. ,. . ...

9813- / 1: 4 ^ 1.

BATH ORIGINAL

791U90

The preferred relationship between the amount of starch, the amount of hide glue and the gel strength of the hide glue can be made clear by the following comparison:

Hide glue strength Hide glue Gel strength Parts by weight Parts by weight in g 100 70-50 30-50 200 85-70 15-30 300 90-80 10-20 400 95-85 5-15

The terms "setting time ¹¹ " and "open time" have already been defined. The values for the setting time are obtained as follows: At least 5 strips of rubberized adhesive tape are cut off at a length of 23 cm from the beginning, the middle and the end A stretif is evenly re-moistened with the help of a conventional humidifier for rubberized adhesive strips. At the same time, a stopwatch is started. After 5 seconds, the adhesive strip is stuck onto the soft side of a thick chipboard with even hand pressure.

The strip is then immediately with a moderately slow pull

started peeling off at right angles to the surface / if. $ 80 to $ 100 fibers are pulled out, the stopwatch will lock. The total time in seconds is called the setting time. The setting time is accordingly the shortest time that is required after an open time of 5 seconds to achieve an 80 to 100% fiber-pulling effect on the adhesive tape. Short times indicate rapid development of the setting. The test is carried out with at least 5 strips and the results are averaged.

009 * 13/1491 _BA D

" ⁹ "'191 H90

The values for the open time v / ground are obtained in the following manner: At least 3 sets of adhesive strips, 12.7 cm long and 5 cm wide, are cut from the beginning, the middle and the end of a gummed adhesive tape. Each set should contain 8 strips to determine the open time of 5 to 40 seconds with an interval of 5 seconds. The test is carried out as follows: The strip is evenly moistened with the aid of the humidifier commonly used for rubberized adhesive strips, and a stopwatch is started at the same time. After 5 seconds, the strip is glued to the v / oak side of a dioctn chipboard, applying even hand pressure to ensure smooth contact. Fold back about 1 to 2 cm to make it easier to peel off later. The experiment is repeated after 10, 15, 20, 25, 30, 35 and 40 seconds. The stuck-on strips are left to dry for 2 hours. Then each strip is peeled off the plate at an even rate. The first strip (with the shortest open time) with which no 100% fiber-pulling effect is achieved is determined. The complete series of tests is carried out at least three times, and the maximum average time is determined, which still causes a 100 " sequence fiber-pulling effect.

In the following examples, which illustrate the invention, All percentages are given as percentages by weight and all temperatures are given as degrees Celsius. All times, like that open time and the setting time are made in seconds.

Typical commercial recipes

Recipes for remoistenable adhesives for gumming based on animal glue:

A) bone glue (100 g gel strength)

B) 190 parts bone glue (100 g gel strength)

90 parts hide glue (300 g gel strength)

009813/1491 _ BADORiGlNAL

CO - WQ file Eaeelieialgim (■ 100 g G-all required strength)

30 feilo Saatleia "'(300 g G-allertfestigfcei *)

20 f silo -Bestrin

B) 4 © 5? Eilo saw glue (100 g gel strength)

140 part © strength .-. (säiaremodif iert © wach-

■■ "-. '■. Sig © lilostärlce)

20 parts Hasist © ff. .

At a temperature of -74 ⁰ O wa.ä "sines? solids-» Söaz © S "feration vpn 50" to 55- f * - dissolved in water © 2 "Äifi ho% - © imo ^ SisaperatiÄ ³ of 66 ^Q 0 with an order form if © a 9 _S G6 feg / Bi®s paper av-f a paper band. applied »Eoi-äes ¹ S & äss ^ itiang of the adhesive B) wiasfie dis

ssirsr fi © r.: Saoislisaleiia hiwzugßfiifft wiix ¹ -

Organic Psllfimg eLes? ISXöB © © is? .Ö © 2? resulted in followonfl ©

& B. O ' "- · 33 Order ßew ° leg / eggs ■■ 7.79: 8 j 60 9 _s O6 "" 7.9 Open time - "50 - - Setting time 18th '13 ' 13th 11th Mc. Laurine value - 33 42 46 example 1

Acid-modified waxy Milo starch with a SGÖTT viscosity of -40 seconds at 75 g and urea were mixed with water and ^{heated to 90 0} G for 15 minutes in order to gelatinize the starch, hide glue with a strength of 300: g- was in · water from! ⁰ 74 G dissolved both mixtures were hot combined, mixed, and cooled to 66 G. ⁰ per. Glue was then. on. Paper tape applied. The components were contained in the following amounts * ■ · '■■'----''- · - '■:' · ■■■ - ■ - ■■ - · ■ - .. - ■ - ■ - ,. ■ * ■

19TH90

83.1 parts starch

12.5 parts hide glue

4.4 parts of urea

100.0 parts v / water

The examination of the rubberized belts had in comparison the following result for a typical adhesive based on animal glue:

Table 1

Starch skin glue

8.62

50

61. . · ■ 3.90

As can be seen from the table, causes the adhesive on the basis of starch and hide glue improved setting time and improved resistance to shear (higher Mc. Laurin-values). The open time is also satisfactory.

Example 2

This example explains the suitability of hide glue with different G-allert strengths in starch hide glue. In Table 2, v / d, the amounts earth ^- containing constituents, based indicated on a solids basis. Sufficient water was used to obtain a solids content of 52 ^° J ₀ . The strength used was the same as in the experiment

Animal glue On contract weight
kg / ream 9.06 Open time 50 Setting time 13th Mc. Laurin value 42 Glue value 30th

009813 / U91

BATH ORIGINAL

The starch, urea and half of the water were zusaminengegeben and heated for 20 minutes at 90 ⁰ G. Then the mixture was cooled ^{to 66 ° G.} The hide glue has been dissolved in the other half of the Y / ater at 66 ⁰ C and combined with the Stärkemisοhung. The adhesive was then applied to paper tape in the usual way and tested in the same way as in Example 1. The results are summarized in Table 2:

A. Tabel 2 G D. O 59.4 B. 83.1 86 5 ⁰ Jo strength 3.1 76.6 4.4 4, 5 '/> Urea 37.5 4.0 12.5 '9, ⁰ P skin le im 100 19.4 300 400 9 Gelatinous
■ ability of the skin
glue (g) 8-9. 200 8-9 8th - A. to contract weight
kg / ream 40 8-9 40 ' 40 Open time 16 30th 13th 12th Setting time 52 14th 79 81 80 Mc.Laurine value 3.75 70 3.75 * 3 Glue value 3.88

These results show that the correct choice of glue

at the amount depending on the gel strength & a glue values from 3 to 4 *** £ to adhesives with the desired values for open time, setting time and Mc.Laurine test leads.

Example 3

adaptability

This example illustrates that of the starch hide glue adhesives regarding the use of different strengths. In each approach, the amount of starch Urea and glue kept constant. Only the type of strength was varied:

0 0 9 8 1 3 / U § 1 ^{BAD 0Rmml}

191H9Q

83.1 per cent strength
4.4 T ^ urea

12.5 Io hide glue (resistant to allergies

30Og)

Sufficient I ^ narrow v / ater was added to it the viscosity in the range of 500 to 2000 centipoises to adjust.

Tabel 3 2)
Sorghum starch ' Waxy maize starch e Potato starch D. 8-9
25th 8 - 9
35 Atif trags - '} e w.
kg / ream
Open time 8-9
20th 13th 14th Setting time 12th 70 75 Mo. j .. aurin value 79 3.75 3.75 Glue value 3.75

1) enzyme modified; SGOTT viscosity 40 seconds /

100 g'i

2) Hydroxyäthyl ^ substituted Ms to one degree of substitution of 0.07j SG'ÖTT viscosity

75 seconds / 100 g}

3) acid-modified} SGOTT viscosity 38 seconds /

100 g i

Example 4

This example shows the suitability of various plasticizing Means for the starch hide glue:

75 i> starch (acid modified waxy

Million strength)

15 ^a ß> hide glue (allergy resistance 300 g) 10 ^a Jo plasticizing agent

So much water was used for the preparation that a solids content of 52 ^c ß> was obtained.

009813 / U91

-U-

Table 4 • euxrium nitrate Plasticizing agent Urea 8-9 Order weight ö - 9 kg / ream 40 Open time 40 20th Setting time 16 62 Mo.Laurine value fco 5.0 Glue value 5.0

In the same way, other plasticizing gowns, such as Sorbitol, Glyoerin, G-lucose syrup, can be used, wordt im essentially the same results can be obtained.

Adaptability, The above examples explain all the starch-shell adhesives according to the invention for use as re-moistenable adhesives for G-coatings, which are particularly suitable for the production of re -moistenable rubberized adhesive tapes .

The essential result of the invention is thus a rewettable adhesive for gourmings, which is made from an ungelated starch that has been chemically modified to such an extent that it is practically free of "set-back" after gelatinizing in water, with hide glue a jelly strength of at least '100 g, which gives a sizing value of at least 2, ater consists of a plasticizing agent, and V / in proportions such that the ratio of the sum of starch and hide glue to plasticizing means exceeds a value of about 4 i 1 and the adhesive has a solids content of about 30-70% by weight, wherein at least the starch has been heated to a temperature sufficient to gelatinize it.

13 / 14h ORIGINAL BATHROOM

Claims (1)

PATÜWTAHSPHÜCHÜJ 1. Basic mixture for remoistenable adhesive for rubber linings, characterized in that it consists of an ungelatinized Starch that has been chemically modified to the extent that it after gelatinization in water is essentially free of "set-back", from hide glue which has a gel strength of at least 100 g, of a plasticizing agent and of water in such quantities that the ratio of the sum of Thickness and hide glue to the plasticizing agent exceeds about 4: 1 and the adhesive about 30 to 70 percent by weight «» Contains solids. 2.X raw material mix according to claim 1, characterized in that that the ratio of starch to hide glue is between about 95 J 5 and 50 ί 50 parts by weight. 3. Adhesive base mixture according to claim 1, characterized in that the hide glue gives a glue value of at least 2. 4. adhesive base mixture according to one of claims 1 to 3, characterized by a viscosity between about 500 and about 3000 centipoise. · 5. Adhesive base mixture according to one of claims 1 to 3, characterized characterized in that the hide glue has a gel strength of at least 200 g. The adhesive base mixture as claimed in claim 5, characterized in that the glue value is between approximately 2 and approximately 10. 7. Adhesive base mixture according to one of claims 1 to 3, characterized by a solids content between about 40 and about 60 wt .-? o. 8. Adhesive base mix according to one of claims 1 to 3, da- 009813 / U91 BAD üKiöiMAL 191U90- characterized by daii the ratio of the sum of Starch and hide glue to the plasticizing agent about 10 ί exceeds. 9. Adhesive base mixture according to one of claims 1 to 3, characterized marked that the starch is an acid-modified one waxy Milo starch, an acid-modified waxy maize starch, an enzyme-modified potato starch or a Hyuroxyethylsorghum starch is. 10.Klebstoffgrundmischung according to one of claims 1 to 3, data g by, that it contains as plastizierendeH agent is sodium nitrate, sorbitol or urea. - 11. Adhesive base mixture according to claim 1 to 10, characterized in that that they are made from an acid-modified waxy milo starch, from hide glue with a gelatinous strength of about ^ 00 g, from urea and from water in such Amounts that the ratio of the sum, of starch and glue, to urea is between about 10-1 and about 30: 1 and the adhesive contains about 30 to 70 weight percent solids and that the hide glue is present in such an amount is that the glue value is between about 3 and about 5, and the adhesive has a viscosity between about t 500 and about 5000 centipoise. 12. Adhesive base mixture according to claim 2 and 5 »characterized in that that the ratio of starch to hide glue is between about 85 ί 15 and about 70? 30 lies. 13. Adhesive base mixture according to claim 2, characterized in that that the hide glue has a gel strength of at least 300 g and the ratio of starch to hide glue between about 90 ί 10 and about 80 s 20. H. adhesive base mixture according to claim 2, characterized in that 0098 13/1491 bad original draws that the skin glue has a gel strength of α tv / a 400 g and the ratio of starch.: u riautlc-i ;. between about 95 * 5 and about t> 5:15 liev-t. ij · Process for the production of a xilebstc, f'i's, i ^ by jukonnzeicnnet, da- · ¹ · ungelatinized starch :: e, the a or. ¹ ο it is chemically modified, since after de ... gelatinizing in .iu3: jo-r it is essentially free of "oet-back", HauLloix, which is a galling activity of at least 1CÜ g • .. ■ .ifwei;.; t, a plasticizing medium and water in such ..-- η ^ Λι to-Sai-imengemiscat, since ^ from the ratio of the ο-iurne ν .η strength and hide glue to the plc-stimulating i-ictoi eOv; a 4 ί exceeds and the x.Iisc obtained. iun £ j etv / a 30 to etv / a 70 weight -, '<> Fes fcstcff eentuillt, and since .; the Ge: .. i.; 'jh on one for the pastry college; the strong a'mreiciiori'ae temperature is heated. Ö.Verfahren according to claim 15, characterized in that *. the hide glue has a gel strength of at least 200 g and has a glue value of at least 2. 17. The method according to claim 15, characterized in that it is markedLüet, daJ the content of solids between about 40 and about 60 G-ev, «- # lies. 18.Verfahren according to claim 15, characterized in that the Ratio of the sum of strength and skin leira zuji plasticizing LIittel about 10; 1 is. 19. The method according to claim 15, characterized in that äa ~ The starch is an acid-modified waxy kilo starch, an acid-modified corn starch, an enzyme-modified one Potato starch or a hydroxyethylsorghum starch is. ■ 0 0 9 8 1 3 / U 9 1 BAD ORIGINAL 191U90 - 16 - LO.Veri'aui'en according to claim, "ij, characterized in that daxo JaLriu-.Miitrat, sorbitol or urea is used as the elasticizing -it toi we. ^ Cn. ._1 . / cri'atireri nacii claim 15 to 20, characterized in that the starch is an acid-iodified waxy I / iilostärkü, a egg ... moai-xiBierte potato starch, a Kydro-Xj ütüyiuerguumu "J-Livc or an aciduiouif icated ViacLicnaisu LiIi ^- Vu is. 'c. <\. Method according to claims 15 bic 20, characterized in that j daii iiatriuiuiiita-at, sorbitol or Urnstoi'T as jjlastierenui. 3 medium can be used. nacu claim 15 to 2ü, characterized in that; the ratio of strength ^ u skin conduction between etv / a about ^ O '. 50 le _e t. . Modification of the - procedure for: .-: - "filling of an adhesive according to claim 15, characterized in that it is ungelatinized üstarch that is chemically modified to such an extent that it is after gelatinizing in wet, essentially free of "oet-back" is a plasticizing agent and water together. f.erais.-ht, and there .. · the 3tärice-nasse_ mixture on a Sufficient temperature to keep the S'cäx'ke alive ei'uitzt v »'ira, whereupon aeai Stilke-ii'asser-Geniisch hide glue is added which has a Gailert strength of at least 10 g and causes a glue value of at least 2, and a plastizieroiides ^ means in such a lousy, dai. the Disregarding the sum of strength and skin lines that add to the weight .Medium exceeds 2 s 1 and the adhesive contains about "0 to about 70 weight-70 solids. . Process according to claim 24, characterized by the following process steps i 0 9 8 13/1491 BAD ORIGINAL 1-9-1 T 4 (1) Combination of ungelated starch, which has been chemically modified to such an extent that, after gelatinizing in water, it is essentially essential. chen fi-fci from "Set-Back" is, a plasticizing liquid and rt'asser in solclien Henren, that a suspension arises, (2) Heating the hot starch suspension a temperature which is sufficient to aa die Strength ii "kVesentllüi.-eri. to verclci3t - rn, (i>) Vex'ißisct.en-von Hautlv-ir., who is a G-allertfestifokeit of .veai. stcns 100. £ aui.veist, rait barrels at a temperature. of about 66 "C, and solving de-a nautlei.us and (4) Susanuien ^ ebün aer otlirke-iiasser-Liisciiung and αοί3 on _t ii, lüstjii IIautioi:;. S under irziel-jig an x ^ letstcffs, which contains the components in such luengun, since the ratio aer 3u: rjne of Falls and iiautii,!.:. :: u :; ₄ pla2tiziei * end means et.va 4 * 1 LIb «_rschruitfet and the nautloi ... in s-lci.or —exi ^ c and tiit Such-ja-lertiestigkeit ^ ur Änv.endun ko ^ nl, da ·; a Leini - ". Yc.rt vcii 2 abersciii'itteii '.vii-d. C09813 / U91 bad original