FR2478657A1 - COATING COMPOSITION FOR TRANSFER ADHESIVE SYSTEM AND TRANSFER METHOD - Google Patents

Abstract

COMPOSITION ENSURING A GOOD TRANSFER OF THE ADHESIVE. IT INCLUDES: (I) 100 PARTS BY WEIGHT OF A SILICONE COMPOSITION COMPRISING (A) 100 PARTS BY WEIGHT OF A POLYDIORGANOSILOXANE BASE POLYMER WITH VINYL TERMINATIONS RESPECTING THE FORMULA: (CF DRAWING IN BOPI) IN WHICH R REPRESENTS A MONOVALENT HYDROCARBON RADICAL WITHOUT ANY INSATURATION, R REPRESENTS A HYDROCARBON RADICAL CONTAINING AN ALCENYL INSATURATION, X AND Y REPRESENT POSITIVE WHOLE NUMBERS SUCH AS POLYDIORGANOSILOXANE A TERMONYL INSATURATION, R REPRESENTS AROUND 20 VINVINAISON POLYDIORGANOSILOXANE, AND REPRESENT 0 OF TERMINVINAISON A GROUP 0, RESERIN 0 A VISCOSITY BETWEEN ABOUT 50 AND ABOUT 100,000 CENTIPOISES AT 25C; (B) ABOUT 0.1 TO 10 PARTS BY WEIGHT OF A POLYMETHYLHYDROSILOXANE FLUID WITH TRIMETHYL TERMINATIONS, USED AS A CURLING AGENT, CONSISTING OF ABOUT 10 TO ABOUT 100 BY WEIGHT OF SIH GROUPS AND HAVING A VISCONITY OF ABOUT 25 AND ABOUT 1,000 CENTIPOISES AT 25C; (C) AN EFFECTIVE AMOUNT OF PLATINUM CATALYST TO FACILITATE A THERMAL CURING REACTION BY HYDROSILATION, AND; (II) APPROXIMATELY 2.0 TO 10 PARTS BY WEIGHT OF A MQ SILICONE RESIN WITH A MAQ RATIO BETWEEN 0.5 AND 1.0, M REPRESENTING PATTERNS (RSIO12) AND Q REPRESENTING PATTERNS (SIO) , AWARE THAT R REPRESENTS A MONOVALENT HYDROCARBON RADICAL. APPLICATION TO THE RESTORATION OF WORKS OF ART.

Description

The present invention relates to polysiloxane compositions

  particularly suitable for making peelable coatings, and most particularly useful for transfer adhesives when used in connection with polysiloxane adhesives having a

high in phenyl groups.

  Peelable coatings are useful whenever it is necessary to obtain a surface or material

  which is relatively non-adherent to other materials

  which he would normally adhere to. We use widely

  peelable silicone compositions for papers as a coating

  removing contact adhesives for labels,

  decorative laminates, tapes of

  fert, etc. Peelable silicone coatings for paper, polyethylene, Mylar and other substrates of this type are

  also useful as non-sticky surfaces for

  food handling and packaging

  industrial age. These peelable coatings are usually found in a form devoid of solvent or in the form of

a dispersion in a solvent.

  When labels are coated with an adhesive, it is desirable that the paper placed on the back can be

  easily removed from the label when it is to be used

  the quality of adhesiveness of the label is impaired by its separation from the substrate on which it was stored. The same principle applies to certain types of adhesive tapes in rolls. It is necessary that the ribbon

  easily unrolled while maintaining its adhesive properties

  sive. This can be achieved by covering the non-adhesive side of the tape with a peelable silicone composition that will contact the adhesive during manufacture of the tape roll. Peelable coatings may be used in conjunction with silicone adhesives to form a system

  of transfer adhesives. This type of adhesive may have many

  applications such as, for example, the restoration of works of art. In this type of adhesive, a first substrate is covered, which may ordinarily consist of any type of non-porous film or glossy paper, and preferably of supercalendered kraft paper, with a

  silicone coating modified with MQ resin without

  peelable, which can be removed from an aggressive, silicone-based, high phenyl contact adhesive. These two compositions will be described later in this application. The peelable coating is cured

  on the first substrate by well known means, and usually

  narily by heat. We are beginning more and more

  curing with UV or other radiation to eliminate the high expense of using thermal curing systems. The high phenyl silicone-based contact adhesive is then applied to the peelable coating and cured in situ, so that the first substrate now carries two coatings, namely the peelable silicone coating and the silicone adhesive with a high content of phenyl groups. It was found that the high phenyl silicone adhesive was the only adhesive

  that could be used in a trans-

  fert. Ordinary silicone adhesives which contain mainly methyl substituents do not provide the advantageous transfer properties of the

present invention.

  The first substrate bearing the

  double coating on a second substrate suitable for

  forcing and preserving the artwork to form a laminate. When this laminate-forming step is complete, an adhesive system is available

  transfer that can be used to strengthen the

  art at any desired future time. We proceed to

  restoration by separating the first substrate and its reve-

  peelable material of the second substrate which retains the adhesive of

  silicone-based contact with a high concentration of

  because the aggressive adhesive adheres much more to the second substrate than to the peelable coating with which it was

  in touch. The high-grade silicone adhesive

  The phenyls have thus been transferred from the substrate bearing the peelable coating and a second

  reinforcing substrate which is now coated with the adhesive

  high-grade silicon-based contact sif

  Phenyls. This reinforcing substrate can then be applied

  on the artwork to form a laminate.

  This type of transfer adhesive system is obviously not limited to the restoration of paints,

  but it can be used whenever it is desirable

  to apply a fully cured contact adhesive to virtually any substrate. Once the adhesive has been transferred, it is immediately

  ready for use if moderate pressures are applied.

  These transfer adhesive systems, -! base of

  still have the advantage of staying flexible in a wide range of temperatures. This flexibility is not found for organic adhesives such as acrylics or epoxy resins which are ineffective adhesives when applied to a substrate which reaches

  ordinarily relatively high or low temperatures.

  For example, a system-based transfer adhesive system

  The high phenyl group will be particularly

  useful if you want to apply an adhesive to an engine.

  Organic adhesives will flake, crack or not adhere satisfactorily to this type of substrate. However, the silicone adhesive can be deposited on the transfer substrate with a peelable coating and cured thereon, after which it can be transferred more

  later on the hot part of the engine, which will retain the adhesion

  sive. A silicone-based contact adhesive with a high

  in phenyl groups is able to withstand

  normally high eratures to which an engine can be subjected. We can then apply a label, or another

laminated on this adhesive.

  The present invention provides an adhesion system

  silicone transfer system comprising (a) a high group-based silicone-based contact adhesive

  phenyls that can be used as a transfer adhesive film.

  fert; and (b) a modified silicone coating composition.

  MQ resin, peelable, effectively removing

  high phenyl group adhesive, which facilitates

  lite its use in a transfer adhesive system. It is particularly recommended to use in the present invention silicone compositions materials

  various chemicals that typically contain

  that, several oxygen silicon bonds in a linear or three-dimensional skeleton. Silicon has a valence of four, but when there are less than four bonds with

  oxygen, other connections are made with groups

  whether substituted or not. Depending on the particular combination

  silicon, oxygen and organic substituents

  a wide range of fluids and silicone resins, all of which have

  recommended different. There is therefore a very large

  number of silicone compositions, some of which are available from several manufacturers, and

  others are the property of a single manufacturer.

  For example, in the transfer adhesive system of the present invention, a peelable silicone coating is used which can be removed from a high phenyl silicone-based contact adhesive. A peelable coating is a silicone composition that can be deposited on a substrate (usually paper), to which it will adhere strongly after being cured. We

  may, however, apply to the apparent surface of the

  hardened peelable material, an adhesive or a second substrate coated with an adhesive, or bringing it into contact with this surface without adhering to it aggressively. It will therefore be possible to remove the first substrate carrying the peelable coating from the second substrate carrying the adhesive coating leaving the adhesive intact on the second substrate. It will be easy, in this way, to apply a substrate coated with an adhesive

on any desired object.

  An example of a silicone coating

  peelable, that described in the United States patent application.

  United States of America SN 40 015 filed May 17, 1979. The coating

  The peelable silicone composition of this application is based on the combination of (a) a polydiorganosiloxane-based polymer containing up to about 20% by weight of functional groups.

  alkenyl or silanol, and having a similar viscosity

  between about 50 and about 100,000 centipoises at C; (b) a polymethylhydrosiloxane fluid used as a crosslinking agent containing up to about 100% by weight of SiH groups and having a viscosity of from about 25 to about 1000 centipoise at 25 ° C; (c) an effective amount of a precious metal catalyst, to facilitate an addition hardening reaction (hydrosilation), between the base polymer and the crosslinking agent; and (d) an amount of dialkyl carboxylic ester effective to inhibit the precious metal catalyzed hydrosilation hardening reaction of the silicone composition at temperatures below the thermal cure temperature of the dialkyl carboxylic ester composition.

silicone.

  In particular, we can cite

  of peelable silicone coatings, a coating of

  holding (a) a vinyl-terminated poly dimethyl-methylvinyl siloxane gum containing about 20% by weight of vinyl groups and having a viscosity of about

  000 centipoise at 25 C; (b) a poly (methylmethyl) fluid

  trimethyl-terminated drosiloxane used as a crosslinking agent containing from about 10 to 100% by weight of SiH groups and having a viscosity of from 25 to

  1000 centipoise at 25 C; (c) from about 10 to 500 ppm of

  tine, in the form of a platinum complex, used as a catalyst; and (d) from about 0.1% to 0.05% by weight of maleate

of diallyl.

  This silicone coating can be obtained

  General Electric Company's Silicon Products Division, and for the sake of convenience it will be

  hereinafter as "Pelable A Coating".

  It is necessary to modify this peelable coating so that it can be removed when it is desired to use it with an aggressive, silicone-based adhesive having a

  high content of phenyl groups, as will be described hereinafter

  after. The Peelable Coating A is modified by adding to it an amount of MQ silicone resin effective to remove it from this particular adhesive. In the technique of

  silicones, MQ resin is a product of polysaccharide

  loxane containing essentially monofunctional and quadri or tetra-functional structural units. For a

  general description, see chapter one of Noll, Chemistry

  and Technology of Silicones, (Chemistry and technology of

silicones), 2nd ed. 1968.

  The MQ resin is obtained from orthosilicate or

  of condensed sodium silicate, and is composed of

  M (R3SiO 1/2) and Q (SiO2) units in a ratio of M to Q of from about 0.5 to 1.0 and preferably

  at about 0.65. Group R represents hydrogen radicals

  monovalent carbon atoms, and in particular alkyl groups

  lower, like the methyl group.

  When Peelable Coating A is modified with from about 2.0 to 10 parts by weight of the previously described MQ resin, the high phenyl silicone contact adhesive is particularly removed. This version of MO Resin Peelable A Coating will be referred to as "Peelable Coating B". It is

  so thanks to the use of this special peelable coating

  modified that it is possible to use an adhesive with a high content of phenyl groups that is normally aggressive,

as a transfer adhesive film.

  Several useful achievements of the present invention

  tion can be explained by its various uses in

  dustry. Take, for example, a manufacturer who wants to make certain adhesive products, although these articles themselves are inherently difficult to put on directly. There are several examples that come to mind, silicone rubber parts,

  or any objects that have a sensitive surface

  solvents normally associated with adhesives.

  A classic example is sponges coated with adhesives. These sponges have many uses, for example as dampers in sophisticated electronic equipment. It is, however, extremely difficult

  to coat a spongy surface by conventional methods

  c. So we can use an adhesive film system from

  transfer using the adhesive. Coatings and products

  transferred from the present invention, for the purpose of

sif this type of spongy surface.

  In other words, it is possible to deposit intact, a film of silicone adhesive with a high content of phenyl groups,

  pre-cured, high performance, on the difficult substrate

  to be coated, to make it adhesive, as well as to

  to take advantage of all the advantageous properties of silicone-based contact adhesives, as well as their

  known over a wide range of temperatures.

  A transfer adhesive film system operates in the following manner: paper coated on its

  two faces, or double coated, as a substrate for storing

  cker the adhesive before use. It is deposited on this substrate, which can usually be made of kraft paper

  supercalendere, the Peelable Coating B, a coating pela-

  silicone removal from the high phenyl silicone silicone contact adhesive used in

the present invention.

  This peelable coating is essentially a composition

  silicone coating which is capable of rendering substrates relatively non-adherent to certain other substrates. The peelable coating can be applied to both sides of the paper since the paper will usually be under

  form long strips that can be rolled up.

  High performance phenyl-based silicone contact adhesive is applied to one side of the double coated peelable paper. This adhesive is pre-cured or pre-cured onto the peelable coating by well-known means. So we form a film

  of contact adhesive over the entire surface carrying the coating.

  peelable. This adhesive film is now ready to

  employment, but it is usually stored in rolls.

  Since the opposite side of the coated paper is also coated with the peelable coating, it is of course safe to roll the adhesive without fear of damaging it.

in any way.

  Later, when unrolling the coated paper, the adhesive film remains on the surface on which it was originally deposited. The adhesive film is ready again for

  employment. The film can now be applied to an over-

  difficult face to put on so far, like the sponge indicated previously. The peelable paper coated with the adhesive film can be applied to the desired surface or substrate and moderate pressure can be applied to adhere the film to this surface, after which the paper with the peelable coating, which is relatively less, can be removed.

  adherent than the sponge or other surface. The adhesive film

  Pre-cured sif stays on the new surface and makes it sticky. The surface bearing the adhesive coating can now be applied to any desired location, where

  the application of moderate, non-destructive pressure,

  will have the contact tack properties of the material. So we can now apply the sponge with the coating

  adhesive on a piece to achieve the desired effect.

  It should of course be understood that this transfer adhesive film system can be used in other forms than rolls. If we use it "in the sandwich style",

  adhesive film sheets can be obtained instead of

  of. In this case, the high phenyl silicone contact adhesive is applied and cured on a sheet of paper which is only coated on one side with the effective peelable coating. We place a second

  sheet bearing the peelable coating on the adhesive

sea the sandwich.

  Using an Adhesive Film System from

  Transfer therefore allows the user to make an adhesive

just any object.

  The compositions and methods of the present invention can also be used in a Transfer Adhesive Tape System, similar to the Transfer Adhesive Film System described above, but which presents

  several different uses.

  In this type of system, the coating is still deposited.

  peelable silicone onto a paper or other substrate and the high-group silicone contact adhesive is again applied to this coating.

  phenyls that can be used in this type of system.

  transfer adhesive, and cured. We apply

  then on this pre-crosslinked adhesive a new substrate that can be chosen from a large number of materials, only limited to those that the user wants to make adherent. Among these materials, mention may be made of mylar and

  other polyester films, Teflon and coated surfaces.

  teflon, polyethylene films, paper

  both non-peelable coatings such as blank labels, etc. When removing the paper bearing the peelable coating from the new substrate, the adhesive is transferred to the new, relatively more adherent substrate which then becomes adhesive. He is now ready for any job, among other things, such as labels, decals,

  packaging, and other high performance applications.

  those that require the benefits of silicone adhesives,

  as well as the restoration processes of works of art.

  The Transfer Adhesive Tape System has an obvious advantage, in that the adhesive was applied to the peelable coating and cured before being applied to the new substrate. This is an advantage because it is often difficult to cure or deposit adhesives on certain surfaces. For example, the heat required to cure an adhesive may be much greater than the heat that can be tolerated by a plastic film. This system is referred to as the Transfer Adhesive Tape because the adhesive-coated substrate that is protected by peel-backed paper, or placed on the back, can be rolled up for storage and detachment in the manner

  a ribbon when you want to use it.

  An example of a contact adhesive based on

  silicone in U.S. Patent No. 3,929,704.

  This type of adhesive may comprise various elements

  to present the desired properties for its different

  applications, and for example, excellent flexibility

  over a wide range of temperatures. These adhesives contain

  will usually be a silicone resin, a gum

  silicone, and a catalytic amount of a hardening agent

  is lying. Various peroxides are well known catalysts for this type of system. It is also possible to incorporate plasticizers, extension fillers and processing aids. Adhesives can be deposited on a substrate and cured on the substrate, and they will become effective adhesives when applied to pressure

sufficient minimum.

  Silicone contact adhesives are usually

  consisting of a polydimethylsiloxane gum

  high viscosity, in combination with a silicone resin

  MQ cone with triorgano terminations. For example, we can combine

  100 parts by weight of a silanol-terminated polydimethylsiloxane gum having a viscosity of from about 100,000 to 100 million centipoise with from about 50 to 200 parts by weight of a MQ resin as described hereinafter for 100 parts by weight of gum,

  to form the base of a silicone-based contact adhesive

  cone having a viscosity determined by the gum. The ratio of the resin to the gum will determine the final properties of glutinousness, dryness, tackiness and peelability of the adhesive. Any of several catalysts, for example peroxides and amines, may be used. We particularly recommend the peroxide of it

  benzoyl and 2,4-dichlorobenzoyl peroxide.

  To present the necessary properties for the sepa-

  In addition to the transfer and transfer, the silicone adhesive must have a high content of phenyl groups. This means replacing the polydimethylsiloxane gum used

  in ordinary adhesives, as previously indicated

  by a polyalkylarylsiloxane gum. By varying the content of phenyl groups, a satisfactory separation of a substrate bearing a peelable coating can be obtained, and an adhesive can be transferred by keeping it intact, on

  a surface that we want to make adhesive.

  Peelable Coating A comprises (i) 100 parts by weight of a silicone composition which itself comprises the following constituents: (a) 100 parts by weight of a vinyl-terminated polydiorganosiloxane base polymer having the formula généraie:

R R 7 R R

  H2C = CH - SiO SiO SiO Si - CH = CH2 I If I R R x R 'y R

  in which R represents monocarbon hydrocarbon radicals

  valents devoid of unsaturation, identical or different,

  R 'represents a hydrocarbon radical containing an insula-

  alkenyl titer, x and y are positive integers such that the vinyl-terminated polymer contains from about 0 to 20% by weight of R 'groups and has a viscosity of from about 50 to 100,000 centipoise at 25 ° C; (b) from about 0.1 to 10 parts and preferably from 3 to 4 parts by weight of a trimethyl terminated polymethylhydrosiloxane fluid used as a crosslinking agent comprising from about 10 to 100% by weight of groups SiH and having a viscosity of between about 25 and 1000 centipoise at 25 C; (c) an effective amount of a precious metal catalyst to facilitate an addition thermal cure reaction (hydrosilation), since typically from about 10 to 500 ppm platinum can be used as a catalyst. If desired, the above components can be further combined with from about 0.1 to 5.0 parts by weight of a dialkyl carboxylic ester which will effectively inhibit the catalyzed curing reaction.

  by hydrosilation at temperatures below the temperature

  thermal cure. These esters may be selected from the group consisting of diallyl maleate, phthalate

  Diallyl succinate, diallyl succinate, and dialkyl esters.

  of maleic acid selected from the group consisting of dimethyl maleate, diethyl maleate, and silyl maleate. A quantity of allyl maleate of between 0.1

  and 0.5 percent by weight is usually quite

tisfaisante.

  The foregoing combination of materials constitutes Peelable Coating A, but to render certain non-adherent materials a high phenyl group-containing, normally adherent and aggressive, silicone-based contact adhesive, the coating A must be modified with a coating resin.

  MQ silicone to produce the Peelable Coating B of the

the invention.

  Coating B therefore contains, in addition, approximately

  2.0 to 10 parts by weight of an MQ silicone resin which

  a ratio of M to Q between 0.5 and 1.0, M represents

  both patterns (R3 Si 1/2) and Q representing patterns

  (SiO2), given that R represents a monohydrocarbon radical

  are worth, and usually the methyl group.

  When applying Coating B and curing it, by well known means, on a substrate, for example

  sheet of metal, glass, plastic, polyes-

  ter, paper and other fibrous materials, the

  non-adhesive coated side. But, more importantly, it facilitates the transfer of a high phenyl content adhesive film from the peelable coating surface.

  on any other surface that we want to make adhesive.

  The manufacture of the transfer adhesive system to

  silicone base includes the deposition and hardening steps

  peel coating B on a first substrate which will usually be paper. The paper may be in the form of sheets or rolls, etc. You have to put on

  least one of the surfaces of the paper or other substrate.

  However, if we cover both sides, we can wrap the

  paper doubly coated in the manner of a ribbon.

  The coating itself is then coated with a coating of the silicone-based contact adhesive.

  high content of phenyl groups, which is then

  harden or pretreat by well known methods on the

peelable coating.

  The high phenyl group adhesive generally results from the intercondensation of a mixture of a resin

  of polyorganosiloxane and at least one polyalkyl gum

  aryl siloxane. A particular adhesive can be used

  100 parts by weight of a silanol-terminated polyalkylarylsiloxane gum having a viscosity of between

  1 and 200 million centipoises at 25OC and a group

  from 5 to 25 mole percent. We recommend

  It is particularly important to use a silanol-terminated polymethylphenylsiloxane gum having a

Phenyls of between 10 and 15 mole percent and a viscosity of between 26 and 80 x 10O4 poise at 250C. This gum is combined with from 50 to 200 parts by weight of a

  MQ silicone resin, as described above, presents

  as a ratio of M to Q between 0.5 and 1.0.

  For example, it is possible to combine 100 parts of the above gum with 120 parts of MQ resin, knowing that

  M represents (CH 3) 3 SiO 1/2 and Q represents (SiO 2).

  When the silicone adhesive is cured on the peelable coating, it is ready for use or can be

  store for later use.

  The first substrate is now doubly coated

  peelable coating and adhesive film. We can then apply

  quer the doubly coated substrate on a second substrate that we want to make adhesive. The first substrate bearing the peelable coating of the second substrate is then separated or peeled off, thereby transferring the high phenyl content adhesive film to the second substrate. The second substrate has now become adhesive and may be applied to a third substrate, if desired, or any third substrate may be applied thereto. The first substrate having a peelable coating

  can be made of paper, for example super-kraft paper

  calendrical or other glossy paper, teflon, polyester films, plastics, plastic-coated crepe paper, glass, metal foils, etc. It is necessary, of course, to understand that the second substrate can be constituted by the piece that one wishes

  make adhesive immediately, or by a second surface

  both a peelable coating as the back of a wearing tape

  a double peelable coating when it is desired to store it.

Example 1

  To 20 parts platinum-catalyzed Palable Liner A was added 40 parts hexane and 1.66 parts MQ resin having an M to Q ratio of about 0.65. We

  added the MQ resin as a non-volatile solution

  60% MQ resin tile in toluene. This solution was deposited on both sides of a supercalendered kraft paper by means of a conventional laboratory paper coating apparatus with an engraved shank No. 5. The two coatings were cured for 30 seconds at 1490 C each . A high phenyl group contact adhesive sample was catalyzed with 2% 2,4-dichloroacetyl peroxide.

  benzoyl, for 100% by weight of the solid constituents

  killing the adhesive. A solvent-free adhesive film of 0.0508 mm was applied to the peelable coating. The adhesive was cured for 90 seconds at 95oC and then for 120 seconds at 1650C. Transfer and separation properties were investigated by applying a 2.54 cm wide strip of 0.0508 mm mylar to the adhesive. The paper was secured in an Instron tester and a free end of the mylar was pulled from the paper at a rate of 12.7 cm per minute. There was a complete transfer of the film of hardened adhesive with a

  normal peel strength of about 80 g.

Example 2

  the test procedure described in Example 1 was followed except that 3.32 parts of MQ resin was used. This effectively doubled the amount of MQ resin added to the peelable coating. G-peel strength was observed on the Instron apparatus and successful transfer of the peelable coating adhesive was found. This example shows that a peelable coating having a solids content of MQ resin of 20%, for 100% solids

  constituent of the adhesive makes it possible to efficiently obtain

desired peel test.

Example 3

  The test procedure described in Example 1 was followed to study the Peelable Coating A without adding MQ resin thereto. It was not possible to remove the contact adhesive at

  silicone base with a high phenyl group content of the coating

  This resulted in a separation of the paper.

Example 4

  It was cured on a piece of kraft paper

  supercalendar a Pelable B coating based on silicone,

  divided by 5 parts by weight of MQ resin. We applied on

  this paper a silicone-based contact adhesive coating

  high phenyl content cone, and cured therein. The exposed adhesive was then contacted with a Teflon coated glass cloth suitable for backing up a work of art. Since the bond with Teflon

  was stronger than with the peelable surface, when

  the craft paper the adhesive was transferred to the fabric of

  teflon coated glass, remaining intact. We then applied

  the fabric of glass on the canvas on the back of

  the work of art by lightly pressing a roll.

Claims (16)

  1. Coating composition intended to render a   non-adherent material to high-grade contact adhesives   phenyl groups to which it normally adhered, characterized in that it comprises :.   (i) 100 parts by weight of a silicone composition comprising   (a) 100 parts by weight of a vinyl-terminated polydiorganosiloxane base polymer having the formula: RR R   H2C = CH - SiO SiO SiO Si - CH = CH2 t R R R x'jy   in which R represents a monohydrocarbon radical   are unsaturated, R 'is a hydrocarbon radical containing alkenyl unsaturation, x and y   represent positive integers such as poly-   vinyl terminated diorganosiloxane contains from about 0% to about 20% by weight of R 'groups, and has a viscosity of from about 50 to about 100,000 centipoise at 25 ° C; (b) from about 0.1 to 10 parts-in   weight of a polymethylhydrosiloxane fluid with a final   trimethyls, used as a crosslinking agent comprising from about 10% to about 100% by weight of SiH groups and having a viscosity of from about 25 to about 1000 centipoise at 25% C; (c) an effective amount of platinum catalyst to facilitate a thermal cure reaction by hydrosilation, and;   (ii) about. 2.0 to 10 parts by weight of a silicone resin   MQ cone having a ratio of M to Q of between 0.5   and 1.0, M representing patterns (R3SiO1 / 2) and Q representing   feeling (SiO2), knowing that R represents a monovalent hydrocarbon radical.   A coating composition according to claim 1, characterized in that it further comprises from 0.1 to 5.0 parts by weight of a dialkyl carboxylic ester effective to inhibit the catalyzed hydrosilation hardening reaction. the precious metal at temperatures below the temperature of thermal hardening of the composition of silicone.   3. Coating composition according to claim 2, characterized in that the carboxylic esters of dialkyl   are selected from the group consisting of diallyl maleate   diallyl phthalate, diallyl succinate, and dialkyl esters of maleic acid selected from the group consisting of dimethyl maleate, diethyl maleate, and silyl maleate.   4. Coating composition according to claim   1, characterized in that the amount of catalyst is   between about 10 and about 500 parts per million.   Coating composition according to claim 1, characterized in that the dialkyl carboxylic ester is   consisting of 0.1 to 0.5% by weight of diallyl maleate.   6. Manufactured article characterized in that   comprises a base element carrying a thermally hardened coating   presenting the composition according to any of the Claims 1, 2, 3, 4 and 5.   Manufactured article according to claim 6,   characterized in that the base element is formed of a material   selected from the group consisting of metal sheets,   glass, plastics, paper and materials -   fibrous. 8. Method of silicone adhesive transfer,   characterized in that it comprises the steps of: (A) coating   a first substrate with a peelable silicone coating that can be removed from a high phenyl silicone-based contact adhesive, the peelable silicone coating comprising:   (i) 100 parts by weight of a silicone composition comprising   (a) a polydiorganosiloxane base polymer   containing up to about 20% by weight of functional groups   and (b) a polymethylhydrosiloxane fluid used as a crosslinking agent comprising up to about 100 wt.% of SiH groups and having a viscosity of about 25 to about 200 wt. and about 1000 centipoise at 25 C; (c) an effective amount of a precious metal catalyst to facilitate a hydrosilation bond curing reaction between the base polymer and the crosslinking agent; and (d) an amount of carboxylic ester   effective dialkyl to inhibit the hardening reaction.   by precious metal catalyzed hydrosilation of the silicone composition at temperatures below the thermal cure temperature of the silicone composition; and   (ii) from about 2.0 to 10 parts by weight of a silicone resin   MQ cone having a ratio of M to Q of from 0.5 to 1.0, M representing units (R3SiO1 / 2) and Q representing units (SiO2), wherein R is a monovalent hydrocarbon radical; and hardening   peelable coating on the first substrate; (B)   on the peelable coating with a coating of a   high-phenyl silicone-based contact sif that can be transferred from the peelable coating while remaining intact, the adhesive being the product   intercondensation of a mixture of a poly-   organosiloxane and at least one polyalkylaryl gum   siloxane; and curing the adhesive; (C) application   of the first double-coated substrate on a second sub-   Strat. 9. Method according to claim 8, characterized in that it is desired to make the second adhesive substrate and in that it further comprises the step of (d) separating a first substrate having a peelable coating from the second substrate, this who has   effect of transferring the silicone contact adhesive   cone high in phenyl groups on the second substrate.   10. The method of claim 9, characterized in that it further comprises the step of (E) the application of the second substrate carrying the adhesive coating on a third substrate. 11. The method of claim 8, characterized in that the second substrate is a protective liner with a peelable coating or the opposite side carrying a   peelable coating of the first-substrate.   12. Method according to claim 11, characterized in that it further comprises the steps of (D) separating the second substrate bearing a peelable coating from the first doubly coated substrate, (E) applying the first doubly coated substrate to a third substrate which it is desired to render adhesive and (F) separating the first substrate bearing a peelable coating from the third substrate, which has the effect of transferring the high phenyl-based silicone contact adhesive to the third substrate.   13. The method of claim 8, characterized in that the peelable silicone coating contains (A) a polydimethylmethylvinylsiloxane gum containing about 20% by weight of vinyl groups and having a viscosity of about 100,000 centipoise at 25 C; (B) a trimethyl terminated polymethylhydrosiloxane fluid used as a crosslinking agent containing from about 10 to 100% by weight of SiH groups and having a viscosity of about 25 to 1000 centipoise at 25 ° C; (C) from about 10 to 300 ppm platinum catalyst; and   (D) from about 0.1% to 0.5% by weight of diallyl maleate.   A method according to claim 8, characterized in that the first substrate is selected from the group consisting of glossy paper, supercalendered kraft paper, teflon, polyester films, plastics, plastic-coated crepe paper , and leaves metal.   15. Process according to claim 8, characterized in that the silicone adhesive with a high content of groups   phenyls comprises 100 parts by weight of a poly-   silanol-terminated alkylphenylsiloxane having a viscosity of between 1 and 200 million centipoise at 25 ° C and a phenyl content of between about 25 mole percent, and from 50 to 200 weight parts of a MQ silicone resin having a ratio of from M to Q ranging from 0.5 to 1.0, M representing (R3SiO1 / 2) units and Q representing units (SiO2) knowing that   R represents a monovalent hydrocarbon radical.   16. Process according to claim 15, characterized   in that 100 parts of a polymethyl gum are combined   silanol-terminated phenylsiloxane having a phenyl group content of 10 to 15 mole percent, and a viscosity of 26 to 80 x 10 + 4   25 C, with 120 parts by weight of the MQ resin, M represents sensing (CH3) 3 SiO1 / 2 units.