DE1494888A1 - Glass fiber reinforced elastomeric materials - Google Patents

Description

DR.-INS. DIPL-ΙΝβ. M.SC. DIPL-PMVS. DR. HÖGER - LEGAL RIGHTS - GRIESSBACH PATENT LAWYERS IN STUTTGART λ / Λ / ΟΟΟ

a 34 651 h H9A888

16.9.1965 wa

Owens-Corning Fiberglas Corporation, Toledo, Ohio, U.S.A.

Glass fiber reinforced elastomeric materials

The invention relates to elastomeric products made with glass fibers are reinforced or otherwise connected, and deals specifically with the procedure and the preparation procedures, the ?, ur treatment of the glass fibers used to make a better Connection between the glass fibers and the elastomer Material to achieve the favorable properties of the glass fibers in combination with the elastomeric materials come better into effect.

The term glass fibers, as used in the present specification, includes the following products . ver

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stand: 1) continuous fibers, how to aie by rapid Pulling out many hundreds of individual glass threads; Fiber strands, which result when such continuous glass fibers are gathered together in formation; Yarns and cords, which result from braiding and / or twisting from several strands; as well as Gevjebe and non-woven fabrics, which consist of such strands, yarn or cord; 2) discontinuous fibers (staple fibers) that result be obtained that on many individual glass filaments that are made from dsm Escape from the bottom of a glass tub, one that hits at an angle and downward flow of water vapor or air to act is brought; Yarns obtained by using such discontinuous fibers under the action of gravity trickle onto a perforated surface, on which they are combined into a fiber strand, which then becomes a Yarn is processed; as well as woven and non-woven fabrics made from such yarns with discontinuous fibers; and 3) combinations of such continuous and discontinuous fibers in strands, yarns, cords made therefrom. Gowebon and fleece.

The terms elastomers or elastomeric materials, as they are used here, are materials like natural rubber in the hardened or uncured, vulcanized or non-vulcanized state, as well as synthetic organic labeled elastomeric materials, such as butadiene-styrene polymerizate, Butadiene-acrylonitrile copolymers,

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Chloroprene, isoprene, neoprene, butyl rubber and similar elastomers Polymers and copolymers, also in the cured or uncured, vulcanized or non-vulcanized form State.

The invention is particularly aimed at making better use of the favorable properties of the glass fibers such as their high strength, Flexibility, thermal resistance, chemical resistance, inert behavior, electrical resistance and thermal conductivity Directed when used in conjunction with elastomeric materials as a reinforcing or stabilizing agent in the production of drive belts, as reinforcing cords and fabrics to increase strength, service life and resilience and utility of rubber tires, as well as reinforcement and the like in other elastomeric materials coated fabrics and molded parts made of elastomers.

An object of the invention is a new and better preparation mixture, as a kind of flux or size (forming sisse) for use on glass fibers in the manufacturing process or preferably as an impregnation agent for use on fiber bundles, yarns, cords, strands and fabrics made from glass fibers are used during their manufacture or afterwards in order to achieve the best properties of the glass fibers better to bring to effect when this in connection with elastomeric materials for the production of glass fiber reinforced Moldings and coated fabrics used ντειαοπ.

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The invention relates specifically to a preparation fragrance that for the treatment of the glass fibers in the production is used to the usability and the processability of the glass fibers as reinforcing elements for elastomeric materials, and also used to treat bundles, strands, Yarns, cords and fabrics made from glass fibers are used in the manufacture or later to improve the weave to improve when the glass fibers in combinations with elastomeric Materials used for the production of glass fiber reinforced plastics, layer stools or coated fabrics and there is another, more related The object of the invention is to better utilize the high strength properties of glass fibers when they are used as reinforcing materials Elements for elastomeric materials are used.

These and other objects and advantages of the invention will become apparent from the following description and from that in the accompanying text Drawing illustrated embodiment of the invention. However, the information contained therein is only for explanation and not to describe the invention in a limiting sense. The individual figures show:

Figure 1 is a flow diagram showing the production of continuous Glass fibers and the treatment following production, the aim of which is to improve the processability of these Improve fibers and increase the effectiveness of the application when these fibers are combined with elastomeric fibers

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Materials used in the manufacture of glass fiber reinforced elastomeric products;

Figure 2 is a flow diagram showing the treatment of the glass fibers following the bundling into bundles, strands, yarns, Shows cords or fabrics to be impregnated in accordance with the preferred practice of the invention;

Figure 5 shows a cross-section through glass fibers, which after the procedures shown in Fig. 1 have been treated; and

Figure 4 is a cross-section through a glass fiber bundle that has been treated according to the method shown in Figure 2.

Since then, the function of glass fibers, which have been added to or incorporated into elastomeric materials, either in the form of continuous or chopped fibers, has been more or less that of a filler and not that of a reinforcing, flexibilizing or stabilizing element. The result of this was that the mechanical and physical properties that could be achieved in products in which glass fibers with elastomeric materials combined were only slightly, if at all, improved. It can be assumed that the failure of the Attempts to take better advantage of some of the very beneficial properties of the glass fiber material are to be sought in that the Glass fibers inherently are not able to combine with the elastomer system in a sufficient pale color.

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In the past few years, numerous researches have been carried out by the best of Bind professionals with the aim of finding a Possibility to better utilize the glass fiber components incorporated in elastomeric materials, in order to do this to be able to manufacture products with better physical and mechanical properties. Significant progress in this direction could now be made by the practical instructions of the present invention can be obtained, as will be apparent from the following description.

The invention will now be described using a new and better preparation mixture, which - as originally a Lubricants - can be used to apply to the glass fibers during manufacture, so that these can then be used su strands, yarns, cords or fabrics are further processed, individually obtained a coating from the preparation mixture, whereby both the processing and behavioral properties are achieved as they are for the processing of the fused glass fibers into strands and for twisting and Braiding these strands into yarns and cords and for the processing of strands, yarns and cords into fabrics are desirable, as well as the behavioral properties that result in good bonding when the melted glass fibers are combined with elastomeric materials in the manufacture of reinforced elastomeric products will.

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In the preferred practice of the aforra of the present invention, the formulation of the preparation mixture for the Used as a waterproofing agent used for treating strands, yarns, cords and fabrics which have been made from previously melted glass fibers, so that this mixture can be divided into strands, yarns, Sonor or tissue penetrates in such a way that the Fibers are individually wrapped and thus slit against breakage and mutual abrasion, whereby the mixture is simultaneously connects with the glass fibers or penetrates the glass fiber strands, threads, cords or fabrics in such a way that the Glass fiber system as completely as possible connects with the elastomeric materials with which the glass fibers are used for production can be combined with glass fiber reinforced elastomeric products

The following examples are intended to illustrate the invention Basic idea of a mixture and a method of treatment, e.g. for impregnating strands, yarns, cords and Illustrate fabrics made from glass fibers, the fibers having been melted during manufacture with a conventionally composed mixture, which is, however, advantageously is modified by the addition of an agent that causes a better anchoring of the glass fibers:

ORIGIMAL BATHROOM

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example 1

6.0 weight of β-jC starch partially degraded to dextrin

1.8 0.4 0.2 1.0 88.6

hydrogenated vegetable oil

cationic wetting agent (laurylamine acetate)

non-ionic emulsifier

ganaa-aminopropyl-triethoxyeilane

water

Example 2

3.2 Weight- ^ saturated polyester resin 0.1 N £ Fatty acid eel stimulant (Nopcogen 16 L) 0.1 ^N i ° Polyvinyl alcohol 3.0 * Pyrrolidine 0.3 * gamma-aminopropyl-triethoxysilane 0.1 Glacial acetic acid 93.2 " % water Example 3

0.2 wt.% Paraffin (solid) in an aqueous emulsion

1.3 2.3 0.25 0.5 0.1 0.2 95.15

i » cationic amide polyester resin

% Polyethylene glycol (molecular weight 300 - 400)

£ gelatin

$ gamma-aminopropyl-triethoxyeilane

ok DiammoniuDhydrogen phosphate

$> Glacial acetic acid

f> water

The arrangement shown schematically in Fig. 1 shows how the glass is made molten in a glass melting furnace 10, the bottom of which is provided with a trough-shaped recess 12. The bottom of the trough-shaped recess is sieve perforated so that the molten glass under the

Effect of gravity through the many openings in the floor

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the fir tree 12 flies downwards and thereby forms a corresponding number of ron threads 14 which quickly become thin glass fibers. 16 soaked in by being wound onto a rapidly rotating drum 20. You will fibers 16 with a of the mixtures of Examples 1 to 3 and then combined to form a strand. For this purpose it is an application device 22 is provided, which is shown in the figure as Wiping pad is shown, which is constantly soaked with the oil to be used in the manufacture. The single ones Glass fibers are each coated with the sap by themselves while they are combined to form a strand 18 which is then wound onto the drum 20.

The chipped strands are then allowed to air dry; the drying of the coating films can such be in the range between about 65 and about 120 ⁰ C, accelerated by an application of elevated temperatures, eg. The lubricant used forms a very thin coating 24 on the surface of the glass fibers 16 and gives them a balanced hatred of sliding properties and binding properties, without impairing the fiber character or the appearance of the fibers.

The strand 18 made of the melted glass fibers is preferably processed together with other strands and made into yarns, Twisted threads or cords that can be used as reinforcing elements for elastomeric materials and, for this purpose, left in their entire length or in shorter lengths.

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know sections cut up or previously processed into fabrics or non-advertised tiles.

After the fibers are made into strands, yarns, cords or fabrics, which are generally referred to as bundles in the following, have been processed, these bundles of melted paeern are impregnated with a mixture, according to the invention Type is characterized by the following examples:

Example 4

2.0 parts by weight resoroin formaldehyde resin (Penacolite resin)

1.4 ⁿ "formaldehyde (37 weight ^ solution)

5.0 ⁿ "concentrated ammonia solution

25.0 »" vinyl butadiene latex (50 + solids)

50.0 ^MM neoprene rubber latex ($ 50> solids)

7.4 ^"w butadiene latex (60 + solids) (Pyolite

0.2 "" barium hydroxide ²¹⁰⁴ ^

58.0 " ^H water

Impregnation with the aqueous mixture from Example 4 can be made with a VischhUlse, but can also after another conventional impregnation process, such as by dipping the fiberglass bundles in a bath of the aqueous impregnation tngo mixture. According to As shown in Fig. 2, the fiber optic bundle 30 is deflected downward via a guide roller 32 so that it enters the bath 34, which contains the impregnation mixture of Example 4. Then the bundle is passed around the folds 36 so that there is a sharp bend at which the bundle spreads apart, thereby preventing the penetration of the watery

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Impregnation amelioration in the bundle of melted fibers is borrowed and «loh results in a better impregnation. The impregnated bag is over after leaving the bath • guided in · false or · a · jaw 38, which wipes off the excess odorous odor from the bundle and works the absorbed impregnation mixture into the bundle.

The endless bundle is then fed via the roller 40 to a drying oven, preferably in the form of an air drying oven, the temperature of which is preferably above the temperature of the surroundings and approximately between approximately 65 and approximately 175 ^° C. in order to accelerate the removal of the aqueous diluent and to set the solids of the impregnation mixture 9Λ in place in the glass fiber bundle. Drying only takes a relatively short time, for example 1 to 30 minutes, depending on the oven temperature, among other things.

Bas resoroin-formaldehyde resin sold in the United States is commercially available under the name "Penaoollte Resin" da product of a condensation reaction of resorcinol and form

aldehyde in a molar ratio of 2 to 1. The amounts of the ingredients in the impregnation mixture can be within the following Limits varyι

Example 5

2-10 parts by weight of resorbent formaldehyde resin

1-3 ", Formaldehyde (37% solution)

2-5 "concentrated ammonia solution

15-50 ■ ■ Vinylpyridine TerpolyerisGt

(42 i> solids)

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25 - 50 parts by weight of heoprene rubber latex 5 - 15 ^M "butadiene latex ⁽⁵ ° * ^ atstoff)

(60 i »solids) 0.05-0.2""alkali metal hydroxide

The above materials are mixed with an amount of water such that the resulting mixture has a Festetoffgehalt impregnation of at least 10 and Jt reaches such maximum of 50 f>. For impregnation, such an amount of this mixture should be applied to the bundles that the dry weight of the coating is between 5 and 25 weight pounds and preferably between 10 and 15 weight pounds, based on the glass fiber system.

It is desirable to impregnate the glass fiber bundle as much as possible so that the individual fibers can be impregnated finally through a layer of the impregnation agent The materials contained are completely separated from one another, as the solids act as a coating on the melted glass fibers act like a cushion and protect the fibers from being damaged by rubbing against each other. It is therefore desirable to achieve the greatest possible penetration of the impregnation mixture into the glass fiber bundle. The better that Impregnant has penetrated the bundle, the more effectively the bond between the glass fibers will later be formed in the bundle and the elastomeric material with which the Glass fibers for the production of the glass fiber reinforced elastome-. be combined with a different product.

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Bela finished product forms the elastomer. Material with which the glass fibers were combined to form the continuous phase. This continuous phase of the elastomeric material can consist of consist of the types of rubber that are also contained as components in the impregnation mixture; but they can also be different from it. The continuous phase of the elaatome ren material can be in the hardened or unhardened or in the vulcanized or non-vulcanized state. The connection between the impregnated fiberglass bundles and the elastomeric material which forms the continuous phase is likely to be used primarily in curing or vulcanizing the elastomeric material come about in the course of the manufacture of the elastomeric product.

Even better protection for the individual glass fibers and more extensive embedding and binding of these fibers through the Elastomeric material present as a continuous phase can be achieved by impregnating the Examples 4 and 5 can be modified so that they can be used as a lubricant for glass fibers, according to the working method shown schematically in Fig. 1 to coat the individual glass fibers immediately after their production, or later after the removal of the original lubricant. For this purpose, the formulation of the impregnation mixtures according to the invention is made by adding a Anchoring agents such as gamrna-aminopropyl-triethoxysilane modified. Instead of gamma-aminopropyl-triethoxysilane

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can also be used as a lubricant or an impregnation mixture other organosilicon compounds as anchoring agents contain. Suitable organosilicon compounds are those in which the organic radical connected to the silicon atom contains an amino group, as is the case, for example, with the following compounds: gamma-aminopropyl-vinyl-diethoxysilane, gamma- (triethoxyailylpropylamide) -propylamine, N- (gamma Triethoxysilylpropyl) propylamine, ß-aminoallyl-triethozysilane and p-aminophenyl-triathoxysilane. It is also possible to use other organosilicon compounds in the form of a silane, silanol or polysiloxane, in which the an the organic radical bonded to the silicon atom contains an epoxy group, such as in glycidoxypropyl-trimethoxysilane or in 3,4-epoxycyclohexyl-trimethoxysilane is the Pail. Instead of an organosilicon compound can also be seen by a Werner * Complex compound can be used in which the CarboxyIatogruppe, which is the coordination sites of the central atom acting chromium (III) ions occupied, an amino or a Contains epoxy group, such as in aminopropylatochrome (III) chloride, in the glycine-chromium (III) complex, in the ß-alanine-chromium (III) complex or in the glycylato-chromium (III) chloride.

A lubricant to be used in the manufacture of glass fibers, which is used in conjunction with this further face powder according to the invention can be composed as follows:

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Example 6

2-10 parts by weight of besoroin formaldehyde resin 1-3 · Formaldehyde (37 pros. Solution) 2, - _: -.5 :, "" conc. Ammonia solution

15-50 "■ ▼ inylpyridine terpolymer latex -: t s. (42 * solids)

25-5Q "" veoprene rubber latex

(50 lbs solids)

$ ü. 13 «■ Butadiene latex (60 # solids) 0 _v 05 .. _r 0.2""alkali hydroxide 0.1 - 3.0""Yer anchoring agent

These ingredients of the malting agent are made with so much water rersetet that an aqueous dispersion results, the solids content in the range between 10 and 50 weight ^. This mixture is applied in such an amount that the Dry weight of the lubricant coating applied to the fibers between 20 and 45 weight percent based on weight of the melted glass fibers.

Example 7

2.0 parts by weight of hesorcinol formaldehyde resin 1.0 "" Formaldehyde (37% solution) 2.7 "," conc. Ammonia solution

25rO "■ vinylpyridine terpolymer latex)

( $ 42 solids)

41.0 "■ neoprene rubber latex

(50 i> solids)

5.0 "" butadiene latex (60 1 * solids)

OiQ§ "" sodium hydroxide

1, Q "" gaema-aminopropyl-triethoxysilane

f iÖÖ ⁿ " Water

The lubricants of Examples 6 and 7 can contain the anchoring agent in an amount in the range between 0.1 and 3.0% by weight

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and preferably between 0.1 and 1.0% by weight, based on the weight of the sauce.

If the glass fibers are melted during production with a mixture which is composed in accordance with the present invention, the fibers treated in this way can immediately become Strands, yarns, cords and fabrics or fleeces processed or individually for combination with elastomeric materials can be used without these fiberglass bundles needing any further impregnation, as the individual fibers of the Bundles are already provided with a coating 50, which contains the desired components for anchoring the elastomeric material and for protecting the glass fibers, whereby the Processing and behavioral properties are improved.

In the manufacture of the combinations of glass fibers that after Having dealt with the practical instructions of the present invention, with elastomeric materials, the glass fibers or bundles of glass fibers with the elastomeric material mixed or introduced into the elastomeric material in some other way in the arrangement provided for the combination or inserted, as is the case in the manufacture of fiberglass-reinforced drive belts or in the manufacture of car tires is the case, which are reinforced with cords made of glass fiber. The combination of the glass fibers with the elastomeric material is further processed in the usual way by molding or hardening under the action of heat and pressure or by vulcanization in order to make the elastomeric material in the intended composition

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bination with the pretreated glass fibers in the hardened or vulcanized state, wherein the glass fibers or bundles of glass fibers in the glass fiber-reinforced elastomeric product firmly connected to the elastomeric material are.

It goes without saying that the lard mixes are straightforward Examples 6 and 7 also used as impregnation mixtures can be, for which they are preferably slightly more diluted with the aqueous medium, since the anchoring agent contained in the lubricants remains effective and to form a better bond between the elastomeric material of the continuous phase and the pretreated ones Fiberglass contributes.

From the above description it can be seen that the inventive novel and better mixtures for the treatment of glass fibers and bundles made from them in the Manufacture of glass fiber reinforced elastomeric products for a particularly good connection between the glass fibers and lead to the elastomeric material.

Of course, the invention is not limited to the mixture that is used to treat glass fibers, to prepare them for combination with elastomeric materials; Rather, it also extends to the procedure in which the mixtures for treating the glass fibers

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can be used, as well as on the pretreated or impregnated glass fiber products made from them.

Details of the formulation and the method of application can can of course be modified without thereby departing from the scope of the invention, the scope of which is defined by the the following claims.

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Claims (3)

1A9A888 A 34 651 h -Vf- 16.9.1965 ld wa / J 1 · Preparation for the treatment of glass fibers individually or in the form of bundles that are used for the manufacture of glass fiber reinforced elaetomeric products, characterized by an aqueous system, the solids of which are separated Compose as follows * 2 to 10 parts by weight of resorcinol-formaldehyde resin, 6 to 20 parts by weight of vinylpyridine rubber, 12.5 to 25 parts by weight of neoprene rubber, 3 to Weight point butadiene rubber, with the solids content of the aqueous system in the range between 10 and 50 percent and wherein the vinyl pyridine rubber, the neoprene rubber and the butadiene rubber are used to produce the mixture can be used in the form of the corresponding latices. 2. Preparation mixture according to claim 1, characterized in that it additionally contains 1 to 3 parts by weight of formaldehyde, reohnet from a 37 percent solution. 3. Preparation mixture according to claim 1, characterized in that it additionally concentrated 2 to 5 parts by weight Contains ammonia solution. 4. Preparation mixture according to claim 1, characterized in that it additionally contains 0.05 to 0.20 parts by weight of an alkali hydroxide. 009843/0135 _E ad original A 34 651 h September 16, 1965 5 · Preparation odor treatment of glass fibers one odor in the form of bundles, which are used for the production of glass fiber reinforced elastomeric products, characterized by an aqueous system, which contains 2 to 10 parts by weight of Reeorein formaldehyde resin, 0.3 to 1.0 parts by weight Formaldehyde, 2 to 5 parts by weight concentrated ammonia solution, 6 to 20 parts by weight vinyl pyridine rubber, 12.5 up to 25 parts by weight of jfeoprene rubber, 3 to 9 parts by weight Butadiene rubber, 0.05 to 2.0 parts by weight alkali hydroxide " and the remainder contains water. 6 · Preparation for the melting of glass fibers in order to the manufacture of glass fiber reinforced elastomeric materials to increase their ability to bond with the elastomeric material, characterized by an aqueous system, which 2 to 10 parts by weight of reaorcinol formaldehyde resin, 6 to 20 parts by weight of vinyl pyridine rubber, 12.5 to 25 parts by weight of aeoprene rubber, 3 to 9 parts by weight of butadiene rubber and Contains 0.1 to 3.0 parts by weight of an anchoring agent which is an organosilicon compound or a Werner's see Coraplex compound is in which the organic residue bonded to the silicon atom in the organosilicon compound or the carboxylato group which is seen in Werner's Complex compound occupies the coordination sites of the chromium atom, carries an amino or a Bpoxy group, the solids content of the lubricant in the range between 10 and 50 009843/0135 bad orig / nal ▲ 34 651 h June 19, 1965 (Jew. -Prosent lies, and the vinylpyridine chewing material, the neoprene rubber and the butadiene rubber are in the form of the corresponding latices. 7. liqueur mixture according to claim 6, characterized by, dasa it additionally contains 0.3 to 1.0 parts by weight of formaldehyde. 8. Schmälz mix according to claim 6, characterized in that that they additionally 2 to 5 parts by weight of conc. Contains ammonia solution. 9 * lard mixture according to claim 6, characterized in that that they additionally contain 0.05 to 0.2 parts by weight of an alkali hydroxide contains. 10. Mixture of preparations for melting glass fibers in order to the production of glass fiber reinforced elastomeric materials their ability to bond with the elastomeric material, to increase, characterized by an aqueous mixture containing 2 to 10 parts by weight of reaorcinol-formaldehyde resin, 0.3 to 1.0 part by weight of formaldehyde, 2 to 5 parts by weight of conc. Ammonia solution, 6 to 20 parts by weight vinylpyridine rubber, 12.5 to 25 parts by weight of neoprene rubber, 3 to 9 parts by weight of butadiene rubber, 0.05 to 0.2 parts by weight of alkali hydroxide and 0.1 to 3.0 parts by weight of an anchoring agent, which contains a organosilicon compound or a Werner * see complex compound is in which the organic residue attached to the SiIi- Ö09U3 / 013S _{KDoa! GiNAL} U9A888 A 34 651 h λλ 9/16/1965 3L9L olumatom of the organosilicon compound, or the carboxylato group, which you see in the Werner * complex compound occupies the coordination sites of the chromium atom, carries an amino or an epoxy group, the solids content of the malt mixture in the range between 10 and 50 Weight- ^, and wherein the vinylpyridine rubber, the neoprene rubber and the butadiene rubber are in the form of the corresponding latices. 11. Schmälz mix according to claim 10, characterized in that that the anchoring agent is gamma-aminopropyl-triethoxysilane, 12. Glass fiber bundle, characterized in that the surface of the glass fibers is coated with a thin layer of a lubricant coated, and that the bundle of glass fibers is impregnated with a preparation made up of the following bastand parts composed of: resorcinol / formaldehyde resin, vinylpyridine rubber, Neoprene rubber and butadiene rubber, - of which the Quantities are within the following limits: 6 to 20 parts by weight Vinyl pyridine rubber, 12.5 to 25 parts by weight of neoprene rubber, 3 to 9 parts by weight of butadiene rubber and 2 to 10 Parts by weight of resorcinol-formaldehyde resin. 13 · Elastomeric product that consists of a continuous phase consists of an elastomeric material into which fiberglass bundles are embedded in a corresponding distribution, thereby 009843/0135 bad ork—, 1Λ9Α888 A 34 651 h - »9 September 16, 1965 marked that the fiber optic bundle with a misohung are impregnated, which increases the strength of the connection between the glass fibers and the elastomeric material, this impregnating agent is composed of the following components: resorcinol-formaldehyde resin, vinylpyridine rubber, heoprene rubber and butadiene rubber, which are in the the following proportions are present: 6 to 20 parts by weight of vinylpyridine rubber, 12.5 to 25 parts by weight of heoprene rubber, 3 to 9 parts by weight of butadiene rubber and 2 to 10 parts by weight of resoroin-formaldehyde resin. 14. Glass fibers, the surface of which is covered with a thin layer a flux is coated, characterized in that the lubricant coating is a resorcinol-formaldehyde resin, Contains vinyl pyridine rubber, heoprene rubber, butadiene rubber and an anchoring agent as components, the Anchoring agent an organosilicon compound or a furthermore, see complex compound in which the organic Rest that is bonded to the silicon atom of the organosilicon compound, or the carboxylato group, which is in the Furthermore, complex compounds see the coordination points of the Chromatoms occupied, an amino or an epoxy group carries. 15. Molten glass fibers according to claim 14, characterized in that the constituents of the peeling agent in the the following proportions are present: 2 to 10 parts by weight 009843/0135 H9A888 A 34 651 h September 16, 1965 Resorcinol-formaldehyde resin, 6 to 20 parts by weight vinyl pyridine rubber, 12.5 to 25 parts by weight neoprene rubber, 3 to 9 parts by weight of butadiene rubber and 0.1 to 3 parts by weight of the anchoring agent. 16. Molten glass fibers according to claim 14, characterized in that the anchoring agent is gamma-aminopropyltriethoxysilane. 17. Elastomeric product consisting of a continuous phase of an elastomeric material and glass fibers, which in corresponding distribution are embedded in this continuous phase, characterized in that the surface of the Glass fibers are coated with a thin layer of a lubricant3, which increases the strength of the connection between the Glass fibers and the elastomeric material increased, with the lubricant coating consisting of the combination of a resoroin-formaldehyde resin with vinylpyridine rubber, neoprene rubber, Butadiene rubber and an anchoring agent, which is an organosilicon compound or a Werner * see complex compound, in which the organic radical, the the silicon atom of the organosilicon compound is bonded, or the carboxylato group, which is seen in the Werner's Complex compound occupies the coordination sites of the chromium atom, carries an amino or an epoxy group. BAD OR!.? '\ -. M 009843/0135 U9A888 A 34 651 η September 16, 1965 18. An elastomeric product of claim 17 _t characterized in that present in the thin Schmälzmittelüberzug materials contained in the following proportions: 2 to 10 parts by weight of resorcinol-formaldehyde resin, 6 to 20 parts by weight Vinyl pyridine rubber, 12.5 to 25 parts by weight of neoprene rubber, 3 to 9 parts by weight of butadiene rubber and 0.1 to 3 parts by weight of the anchoring agent. 19 * Elastomeric product according to claim 17 »characterized in that that the anchoring agent is gamma-aminopropyl-triethoxysilane is. 009843/0135 Blank page