CN102471578A - Curable organopolysiloxane composition and sheet-form article having a cured layer obtained therefrom - Google Patents

Curable organopolysiloxane composition and sheet-form article having a cured layer obtained therefrom Download PDF

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CN102471578A
CN102471578A CN2010800286649A CN201080028664A CN102471578A CN 102471578 A CN102471578 A CN 102471578A CN 2010800286649 A CN2010800286649 A CN 2010800286649A CN 201080028664 A CN201080028664 A CN 201080028664A CN 102471578 A CN102471578 A CN 102471578A
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cured layer
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organic polysiloxane
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CN102471578B (en
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山田修二
山田高照
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DuPont Toray Specialty Materials KK
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Dow Corning Toray Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
    • C08L83/04—Polysiloxanes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/0427—Coating with only one layer of a composition containing a polymer binder
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/08—Heat treatment
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
    • C09D183/04—Polysiloxanes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/40—Adhesives in the form of films or foils characterised by release liners
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/04—Polysiloxanes
    • C08G77/12—Polysiloxanes containing silicon bound to hydrogen
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/04—Polysiloxanes
    • C08G77/20—Polysiloxanes containing silicon bound to unsaturated aliphatic groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
    • C08J2483/04—Polysiloxanes

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  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Engineering & Computer Science (AREA)
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  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Laminated Bodies (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Paints Or Removers (AREA)
  • Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

A curable organopolysiloxane composition comprising (A) at least one organopolysiloxane that has a viscosity of 20 to 500 mPa. s and a content of higher alkenyl in the range of 1.0 to 5.0 mass%, (B) organopolysiloxane that has a viscosity of at least 1,000,000 mPa. s and an alkenyl content of 0.005 to 0.1 mass%, (C) an organohydrogenpolysiloxane, and (D) a platinum-type catalyst. The cured layer exhibits an inhibition of the increase in the dynamic friction coefficient, even when executed as a thick coating on a substrate.

Description

The goods of curable organic polysiloxane compsn and sheet form with the cured layer that obtains from this curable organic polysiloxane compsn
Technical field
The present invention relates to a kind of such curable organic polysiloxane compsn:, can form and peculiarly demonstrate inhibition that the kinetic friction coefficient to cured layer when being superior to the shallow layer administered increases and kinetic friction coefficient little dependent cured layer to speed when so that the administered of thick layer is on base material.More specifically; The present invention relates to a kind of easy-to-handle curable organic polysiloxane compsn; It can form cured layer on the surface of base material; Can provide pressure-sensitive adhesive and the excellent non-stick property (releasability) of viscous substance, and the cured layer that level and smooth (smooth slipperiness) can be provided.The invention still further relates to a kind of goods that have through the sheet form of solidifying the cured layer that this compsn provides, and relate to a kind of laminate of the goods that comprise this form particularly and relate to a kind of surface protective plate.The present invention relates to a kind of method and a kind of method for preparing surface protective plate for preparing the goods of sheet form in addition.
Background technology
Through on the surface of base material (for example, like various types of paper, laminated paper, synthetic film, tinsel or the like), forming the method that cured layer gives the non-stick property of pressure-sensitive adhesive or viscous substance by organopolysiloxane composition is known.Usually use addition reaction-curable organic polysiloxane compsn to form the solidified anti-stick coating in this case, this addition reaction-curable organic polysiloxane compsn experiences the addition reaction (for example referring to references 1) between unsaturated alkyl functional organopolysiloxane and organic hydrogen polysiloxanes in the presence of hydrosilylation reaction catalyst.Consider based on safety and environmental factors, in the application of broad range, need the organopolysiloxane composition of solvent-free formation solidified anti-stick coating in recent years.
Yet; The organopolysiloxane composition of existing solvent-free formation solidified anti-stick coating adopts has the low viscous organopolysiloxane basic components of about 50cs to 1000cs; And do not contain full-bodied organopolysiloxane; Although therefore but this compsn provides excellent coating, resulting cured coating shows the smoothness of going on business, and shortcoming is that its application is restricted as a result.In order to address this problem, add through organopolysiloxane that in the compsn that forms cured coating compsn to be provided be known (referring to references 2-4) to HV, low reactivity.In addition; The inventor has proposed a kind of organopolysiloxane composition of solvent-free formation solidified anti-stick coating; The viscosity of 20mPas to 300mPas when this organopolysiloxane composition has 25 ℃; And contain (A) have the silicon bonding phenyl alkenyl functional organopolysiloxane with (B) have at least 100, the organopolysiloxane of 000mPas viscosity (referring to references 5).
On the other hand; The known organopolysiloxane that contains senior thiazolinyl (for example hexenyl) can be used as the basic components of addition reaction-curing organopolysiloxane composition, and can improve low-temperature curing characteristic for example and to the anti-adhesion performance (referring to references 6 to 9) of pressure-sensitive adhesive and viscous substance.In addition; References 10 discloses a kind of curable coating composition that contains the senior thiazolinyl functional organopolysiloxane glue of 0.1 to 20 weight %, and has instructed and introduced the compsn of coating that this glue provides fast setting to become to have the non-stick property of low-friction coefficient and stable for extended periods of time.
Yet; The curable organic polysiloxane compsn of this reference below unexposed: the low viscous organopolysiloxane that makes the senior thiazolinyl content with 1.0 to 5.0 quality % scopes is as its basic components, and only contains in addition and have the highly viscous organopolysiloxanes of vinyl and be organopolysiloxane glue especially at molecule chain end.In addition, this reference does not comprise description or the suggestion of using such as the combination of two kinds of the high-stage ethylene base content with different range or more kinds of LV organopolysiloxanes.
[references 1] JP 47-32072A
[references 2] JP 61-159480A
[references 3] JP 2006-206884A
[references 4] JP 2008-169322A
[references 5] WO 2006/070947
[references 6] JP 02-145650A
[references 7] JP 04-020570A
[references 8] JP 05-171047A
[references 9] JP 06-049413A
[references 10] JP 09-507523A
Summary of the invention
Technical problem to be solved
The present invention is implemented; Addressing the above problem, and a kind of easy-to-handle curable organic polysiloxane compsn is provided, it can form cured layer on the surface of base material; Non-stick property to the excellence of pressure-sensitive adhesive and viscous substance can be provided, and level and smooth cured layer can be provided.
The invention also discloses the new technical problem that the present invention solves.Can be suitably according to the base material of sheet form with cured layer should be used for selecting the cured layer that provides by known curable organic polysiloxane compsn, and have necessity not only through will be less than 1.0g/m 2Shallow layer be applied to and form cured layer on the base material, and in some cases through with 1.0g/m 2To 10.0g/m 2Thick layer be applied to and form cured layer on the base material.Yet find that when the thickness of cured layer increased, the kinetic friction coefficient of cured layer increased, and when the thickness of cured layer increases, the smoothness loss of cured layer.These problems are quite serious in the important use all in the adhesion characteristics of cured layer and anti-adhesion characteristic, as the same at the protective membrane that is used for optical display and glass surface.The present invention also finds when on above-mentioned base material, forming thick cured layer, and especially when with 100mm/ minute or higher when peeling off at a high speed, with respect to the peeling force that lower velocity is peeled off, the trend of peeling force increase is very significant.
Therefore; The present invention provides a kind of such curable organic polysiloxane compsn: when so that the administered of thick layer is on base material, can forms and peculiarly demonstrate inhibition that the kinetic friction coefficient to cured layer when being superior to the shallow layer administered increases and the kinetic friction coefficient little dependent cured layer to speed.The present invention also provides a kind of goods that are provided with through the sheet form of solidifying the cured layer that this compsn provides, and a kind of laminate of the goods that comprise this form especially is provided and a kind of surface protective plate is provided.The present invention relates to a kind of method and a kind of method for preparing surface protective plate for preparing the goods of sheet form in addition.
The solution of problem
Realize above-mentioned purpose through comprising following curable organic polysiloxane compsn:
(A) 100 mass parts have 25 ℃ the time 20mPas to 500mPas viscosity and the C of 1.0 to 5.0 quality % scopes 4-12At least a organopolysiloxane of senior thiazolinyl content,
(B) 0.5 to 15 mass parts from glue when having 25 ℃ at least 1,000, the fluidic scope of 000mPas viscosity and have the C of 0.005 to 0.100 quality % 2-12The organopolysiloxane of thiazolinyl content,
(C) per molecule has the organic hydrogen polysiloxanes of at least two silicon bonded hydrogen atom (Si-H), its amount for make in the component (C) SiH group and component (A) and (B) in the value of mol ratio of thiazolinyl be 0.5 to 5, and
(D) platinum of catalytic amount-type catalyzer.
That is, through following realization above-mentioned purpose:
" [1] curable organic polysiloxane compsn comprises:
(A) 100 mass parts have 25 ℃ the time 20mPas to 500mPas viscosity and the C of 1.0 to 5.0 quality % scopes 4-12At least a organopolysiloxane of senior thiazolinyl content,
(B) 0.5 to 15 mass parts from colloidal state when having 25 ℃ at least 1,000, the fluidic scope of 000mPas viscosity and have the C of 0.005 to 0.100 quality % 2-12The organopolysiloxane of thiazolinyl content,
(C) per molecule has the organic hydrogen polysiloxanes of at least two silicon bonded hydrogen atom (Si-H), its consumption for make in the component (C) SiH group and component (A) and (B) in the value of mol ratio of thiazolinyl be 0.5 to 5, and
(D) platinum of catalytic amount-type catalyzer,
[2] according to the curable organic polysiloxane compsn of [1], wherein component (A) is the mixture of at least two kinds of organopolysiloxanes, wherein
(A1) has the C of 0.5 to 2.0 quality % scope 4-12The organopolysiloxane of senior thiazolinyl content and
(A2) has the C of 2.5 to 5.0 quality % scopes 4-12The organopolysiloxane of senior thiazolinyl content
Mass ratio with 1/4 to 4/1 mixes.
[3] according to the curable organic polysiloxane compsn of [1] or [2], wherein the senior thiazolinyl in the component (A) is a hexenyl.
[4] according to the curable organic polysiloxane compsn of [1], wherein component (B) is at the dimethyl polysiloxane of two ends of molecular chain by dimethylvinylsiloxy-terminated.
[5] according to each curable organic polysiloxane compsn in [1] to [4], it is characterized in that compsn is solvent-free, and the viscosity of composition in its entirety 100mPas to 5 when being 25 ℃, 000mPas.
[6] each curable organic polysiloxane compsn in the basis [1] to [5] is characterized in that, when on through the following cured layer that provides, measuring kinetic friction coefficient with 10mm/ minute velocity of displacement according to the P8147 of JIS: with 0.6g/m 2With with 1.6g/m 2The curable organic polysiloxane compsn is coated on the base material of sheet form, and in each case through being cured in 30 seconds 130 ℃ of heating; The % of the kinetic friction coefficient that then calculates through following formula increases (Δ) and is no more than 10%:
The % increase (Δ) of kinetic friction coefficient=[{ (with 1.6g/m 2The kinetic friction coefficient of the cured layer of coating)-(with 0.6g/m 2The kinetic friction coefficient of the cured layer of coating) }/with 0.6g/m 2The kinetic friction coefficient of the cured layer of coating] * 100.
[7] goods of sheet form, it has the cured layer that provides according to each curable organic polysiloxane compsn in [1] to [6] through thermofixation.
According to the goods of the sheet form of [7], it is characterized in that [8] cured layer is through with 1.0g/m 2To 10.0g/m 2Speed will be coated on the goods of sheet form and according to each curable organic polysiloxane compsn in [1] to [6] through applying the cured layer that heat comes curing compsn to provide.
[9] goods of the sheet form of basis [7] or [8], wherein base material is Vilaterm-laminated paper or plastic film.
[10] a kind of surface protective plate, it comprises the goods according to each sheet form in [7] to [9].
[11] a kind of preparation is according to the method for the goods of the sheet form of [7] or [8], and said method feature is:
Use 1.0g/m 2To 10.0g/m 2Basis [1] to [6] in each curable organic polysiloxane compsn come the base material of coated sheets form; And
Be cured and form cured layer through applying heat.
[12] a kind of method for preparing surface protective plate is characterized in that
Use 1.0g/m 2To 10.0g/m 2Basis [1] to [6] in the base material of the transparent sheet form of each curable organic polysiloxane compsn coating essence; And
Be cured and form cured layer through applying heat.
[13] laminate; It is through following manufacturing: will be included in the base material (S1) that formation of pressure-sensitive adhesive layer ground adhesive sheet (SA) that provides on the one side at least of goods of sheet form is applied to the sheet form; The base material of sheet form (S1) comprises the goods of a kind of form; The goods of this sheet form have on the one side through thermofixation according to the cured layer that each curable organic polysiloxane compsn in [1] to [6] provides at it at least, wherein use to make formation of pressure-sensitive adhesive layer contact with above-mentioned cured layer.
[14] laminate; It is through following manufacturing: the residual plate (SR) that will be included in the adherent layer that provides on the one side at least of base material of sheet form is applied to the base material (S1) of sheet form; The base material of sheet form (S1) comprises on the base material of a kind of form; The base material of this sheet form has on the one side through thermofixation according to the cured layer that each curable organic polysiloxane compsn in [1] to [6] provides at it at least, wherein uses to make adherent layer contact with above-mentioned cured layer.”
The beneficial effect of the invention
Curable organic polysiloxane compsn according to the present invention can form the cured layer of the little speed dependence of the inhibition that the kinetic friction coefficient of cured layer is increased that peculiarly demonstrates when being superior to the shallow layer administered and kinetic friction coefficient when the form with thick layer is applied on the base material.This cured layer demonstrates the non-stick property of the excellence of pressure-sensitive adhesive and viscous substance and demonstrates smoothness.The present invention also provides a kind of goods with sheet form of the cured layer that provides through the curing said composition, and wherein this cured layer demonstrates above-mentioned technique effect.The present invention provides a kind of laminate and surface protective plate that comprises the goods of this sheet form especially, and a kind of method and a kind of method for preparing this surface protective plate for preparing the goods of this sheet form also is provided.
The optimal mode of embodiment of the present invention
The viscosity of 20mPas to 500mPas and the C of 1.0 to 5.0 quality % scopes when curable organic polysiloxane compsn of the present invention peculiarly comprises (A) and has 25 ℃ 4-12At least a organopolysiloxane of senior thiazolinyl content, (B) from glue when having 25 ℃ at least 1,000, the fluidic scope of 000mPas viscosity and have the C of 0.005 to 0.100 quality % 2-12The organopolysiloxane of thiazolinyl content, (C) per molecule has the organic hydrogen polysiloxanes of at least two silicon bonded hydrogen atom (Si-H), and (D) platinum-type catalyzer.Be described in greater detail below every kind of goods and laminate that constitutes component and the sheet form of using said composition in this curable organic polysiloxane compsn.
Component (A) is the C of viscosity and 1.0 to the 5.0 quality % scopes of 20mPas to 500mPas when having 25 ℃ 4-12At least a organopolysiloxane of senior thiazolinyl content.Component (A) has low viscosity and high-load senior thiazolinyl; Hexenyl for example; And use this component (A) can on the surface of base material, form cured layer with high crosslink density as basic components; And also promote component (B) to ooze out effectively, the thiazolinyl content that component (B) has 0.005 to 0.100 a quality % with therefore from the low reactivity on inside to the surface of cured layer.Therefore; Even when curable organic polysiloxane compsn of the present invention is applied to surface last time with the form of thick layer; The increase of the kinetic friction coefficient that the speed dependence and the compacting of the kinetic friction coefficient of also suppressing or having suppressed to change with cured layer thickness or suppressed changes with cured layer thickness, and demonstrate non-stick property and smoothness to the excellence of pressure-sensitive adhesive and viscous substance.Under the situation of the appointment lower limit that is lower than senior thiazolinyl content; When resulting cured layer became thicker, kinetic friction coefficient increased, and when cured layer becomes thicker; The kinetic friction coefficient of cured layer also demonstrates speed dependence, and therefore the object of the invention can not be realized.On the other hand, in limited time, constituents for suppressing (B) is exuded to the cured layer surface in the appointment that is higher than senior thiazolinyl content, and the non-stick property of possible loss excellence and the technique effect of smoothness.
Consider that from the angle of technique effect of the present invention component (A) preferably has the C of 1.5 to 4.0 quality % scopes 4-12Senior thiazolinyl content; C in the component (A) 4-12Senior thiazolinyl particularly preferably is a hexenyl; And component (A) is preferably at two ends of molecular chain and in the side chain position, has the organopolysiloxane of hexenyl, as by shown in the structural formula given below.In addition; From compacting or suppress to consider with the speed dependence of the kinetic friction coefficient of cured layer variation in thickness with the angle of the technique effect of the change of the kinetic friction coefficient of cured layer variation in thickness; Component (A) compatibly is the mixture of at least two kinds of organopolysiloxanes, and wherein (A1) has the C of 0.5 to 2.0 quality % scope 4-12The organopolysiloxane of senior thiazolinyl content and the C that (A2) has 2.5 to 5.0 quality % scopes 4-12The organopolysiloxane of senior thiazolinyl content mixes with 1/4 to 4/1 mass ratio, and more suitably mixes with 1/2 to 2/1 mass ratio.The senior thiazolinyl content of this mixture is preferably in the scope of 1.5 to 4.0 quality %, and particularly preferably in the scope of 2.0 to 3.5 quality %.
[formula 1]
Figure BDA0000124854160000081
In following formula, each positive number naturally of m and n; M provides the hexenyl-(CH of 1.0 to 5.0 quality % scopes in the per molecule 2) 4CH=CH 2The number of content; And the number of 20mPas to 500mPas range of viscosities when m+n provides 25 ℃.
In addition; When the high-speed situation pressed of measuring or the technique effect of increase (speed dependence) that suppresses the kinetic friction coefficient on base material-cured layer surface are particularly importants, component (A) particularly preferably is to have 2.0 to 5.0 quality % scopes and more preferably at least a organopolysiloxane of the senior thiazolinyl content of 2.0 to 3.5 quality % scopes or have 2.0 to 5.0 quality % scopes and more preferably at the mixture of at least two kinds of organopolysiloxanes of the senior thiazolinyl content of 2.0 to 3.5 quality % scopes.
Component (B) is an additive of giving the surface smoothing property of cured layer; And more specifically-solidify the surface of the cured layer that is provided-give the best kinetic friction coefficient in surface of cured layer through being exuded to effectively through the high crosslink density that uses component (A) to realize, and non-stick property and the smoothness to the excellence of pressure-sensitive adhesive and viscous substance is provided.
Component (B) be from colloidal state when having 25 ℃ at least 1,000, the fluidic scope of 000mPas viscosity and C with 0.005 to 0.100 quality % scope 2-12The organopolysiloxane of thiazolinyl content.The organic group of non-thiazolinyl silicon bonding can be exemplified as alkyl, for example methyl, ethyl, propyl group or the like; Aryl, for example phenyl or the like; Haloalkyl, for example 3,3,3-trifluoro propyl, nine fluorine hexyls or the like; And silanol.
In order to realize the object of the invention, component (B) preferably has the C of 0.005 to 0.100 quality % and preferred 0.010 to 0.050 quality % scope 2-12The organopolysiloxane of the low reactivity of thiazolinyl content, and at least 90% and the preferably non-reacted alkyl or aryl of organic group of more preferably all non-thiazolinyl silicon bonding.The thiazolinyl content that is lower than in the component (B) of aforementioned lower limit possibly produce such as the increase of silicone to surface transport and the problem of low after-tack.When being higher than the thiazolinyl content of the aforementioned upper limit, component (B) is incorporated in the cured layer through addition reaction, and the effect of giving cured layer surface smoothing property possibly be not satisfied.
About the characteristic of component (B), it can be changed to when having 25 ℃ at least 1,000 from colloidal state, the fluid of 000mPas viscosity, and when component (B) was fluid, viscosity was preferably at least 10,000,000mPas simultaneously.When B component presented the form of glue, its plasticity was preferably in the scope of 0.5mm to 10.0mm, and particularly preferably in the scope of 0.9mm to 3.0mm.This plasticity is based on the plasticity of the method for description in the JIS 6249 with the plastometer measurement, and is when under 25 ℃, the 1kfg load being applied to the value of measuring when the 4.2g spherical sample continues 3 minutes.
Component (B) can specifically be exemplified as YSR 3286, dimethyl siloxane phenyl methyl silicone copolymers and dimethyl siloxane diphenyl siloxane multipolymer, in each case these materials be at molecule chain end by being selected from by the identical or different group end cappings of the following group of forming: the alkyl of silicon bonding, thiazolinyl, aryl, haloalkyl and silanol.Component (B) particularly preferably is at the dimethyl polysiloxane of molecule chain end by the straight or branched that is selected from following identical or different group end cappings: trimethylsiloxy, silanol and vinyl.Also can use the mixture of YSR 3286 with different polymerization degree.
Component (B) the most compatibly is at the YSR 3286 of two ends of molecular chain by dimethylvinylsiloxy-terminated, and it is preferred especially wherein using YSR 3286 glue.
Curable organic polysiloxane compsn of the present invention contains the component (B) of component (A) from 0.5 to 15 mass parts of per 100 mass parts, and particularly preferably contains the component (B) of component (A) 1.0 to 5.0 mass parts of per 100 mass parts.Prescribe a time limit down less than specified when component (B) content, the cured layer surface has not satisfied smoothness.When surpassing specified going up in limited time, the viscosity of organopolysiloxane composition becomes too high, and this can for example be coated with, prepare or the like and throw into question actual procedure, especially under situation about using with solvent-free form.
Component (C) is the organic hydrogen polysiloxanes that per molecule has at least two silicon bonded hydrogen atom (Si-H), and is linking agent.Component (C) preferably per molecule has at least three silicon bonded hydrogen atom, and to they bonding position especially the restriction.Silicon bonded hydrogen atom content is preferably 0.1 to 2.0 quality % with respect to whole organopolysiloxane composition, and more preferably with respect to 0.5 to 1.8 quality % of whole organopolysiloxane composition.Except Wasserstoffatoms, the organic group that is bonded to silicon in the component (C) can be exemplified as alkyl, for example methyl, ethyl, propyl group, butyl and octyl group, and wherein methyl is preferred.The molecular structure of component (C) can be exemplified as the ring-type of straight chain, side chain and branching.
The viscosity of component (C) is 1mPas to 1 in the time of 25 ℃, 000mPas, and be preferably 5mPas to 500mPas.Reason for this is following: when 25 ℃ of viscosity during less than 1mPas, component (C) is easy to from organopolysiloxane composition, volatilize; When surpassing 1, during 000mPas, need long set time in the organopolysiloxane composition 25 ℃ of viscosity.Component (C) can specifically be exemplified as two ends by the dimethylsiloxane methylhydrogensiloxacopolymer copolymer of trimethylsiloxy-terminated, at two ends by the end capped dimethylsiloxane methylhydrogensiloxacopolymer copolymer of dimethyl hydrogen siloxy-, at methylhydrogenpolysi,oxane, ring-type methylhydrogenpolysi,oxane and the cyclic methylhydrogensiloxafraction dimethylsiloxane copolymer of two ends by trimethylsiloxy-terminated.Two kinds or the use capable of being combined of more kinds of organic hydrogen polysiloxanes are as component (C).
Component (C) more preferably is by a kind of organic hydrogen polysiloxanes of following general formula (2) expression or two kinds or the more kinds of organic hydrogen polysiloxanes of being represented by general formula (2).Cured layer be through with component (A) and the addition reaction (hydrosilylation reactions) carried out of the thiazolinyl of the silicon bonding (B) form.
[formula 2]
Figure BDA0000124854160000101
R in the formula 1Be substituted or unsubstituted monovalent saturated hydrocarbon group, and be exemplified as and aforementioned identical group.P is a positive integer; Q is the integer more than or equal to 2; And p and q are satisfied to concern 10≤(p+q)≤200.When (p+q) prescribes a time limit down less than specified, can volatilize, and may not obtain gratifying curing, this depends on condition of cure.When surpassing specified going up in limited time, along with the increase of bathing storage period, gel can take place generate.In addition, the preferably satisfied 0.3≤q/ (p+q)≤1 that concerns of p and q.When q/ (p+q) less than specified down in limited time, possibly be not satisfied according to the curing of curable organic polysiloxane compsn of the present invention.
Component (C) so that SiH group in the component (C) and component (A) and (B) in the value of mol ratio of thiazolinyl be 0.5 to 5 and preferred 1 to 5 amount be impregnated in.Prescribe a time limit down less than specified when this mol ratio, curability descends; When surpassing specified going up in limited time, big antistripping takes place and may not obtain actual non-stick property.
Component (D) is platinum-type catalyzer, and is the catalyzer of the addition reaction (hydrosilylation reactions) between the hydrogen of thiazolinyl and silicon bonding of the silicon bonding that exists in the quickening system.The specific examples of preferred platinum-type catalyzer is a Platinic chloride; The Platinic chloride of alcohol modification; The alkene complex of Platinic chloride; The complex compound of Platinic chloride and ketone; The complex compound of vinylsiloxane and Platinic chloride; Tetrachloroplatinum; The meticulous platinum that separates; Load on the solid platinum on the carrier (for example aluminum oxide or silicon-dioxide); Platinum black; The alkene complex of platinum; The alkenyl siloxane complex compound of platinum; The thermoplasticity organic resin that the carbonylcomplex of platinum and comprising has combined like the top platinum of listing-type catalyzer (methyl-methacrylate resin for example; Polycarbonate resin; Polystyrene resin; Silicone resin or the like) platinum of powder-type catalyzer.Particularly preferably use the complex compound and the platinum/alkenyl siloxane complex compound of complex compound, Platinic chloride and the tetramethyl-tetrem thiazolinyl cyclotetrasiloxane of Platinic chloride and divinyl tetramethyl disiloxane, for example platinum/divinyl tetramethyl disiloxane complex compound, platinum/tetramethyl-tetrem thiazolinyl cyclotetrasiloxane complex compound or the like.
Add component (D) with catalytic amount; And usually with 1ppm to 1,000ppm, and preferably add in the scope of 5ppm to 500ppm; In each case, this amount is the amount with respect to platinum in the component (D) of the total mass of curable organic polysiloxane compsn of the present invention.
Except said components; Curable organic polysiloxane compsn of the present invention preferably also mixes (E) hydrosilylation reactions suppressor factor; To suppress gelation and curing at ambient temperature; Thereby and improve stability in storage at ambient temperature, be provided at the curability under hot the applying simultaneously.This hydrosilylation reactions suppressor factor can be exemplified as alkine compounds, alkene-alkine compounds, organic nitrogen compound, organo phosphorous compounds and oxime compound.Specific examples is an alkynol, 2-methyl-3-butyne-2-alcohol, 3 for example, 5-dimethyl--1-hexin-3-alcohol, methylpentynol, 2-phenyl-3-butyne-2-alcohol, 1-acetylene-1-hexalin (ETCH) or the like; 3-methyl-3-trimethylsiloxy-ethyl acetylene; 3-methyl-3-trimethylsiloxy-1-pentyne; 3,5-dimethyl--3-trimethylsiloxy-1-hexin; Alkene-alkine compounds, 3-methyl-pirylene, 3 for example, 5-dimethyl--3-hexene-1-alkynes or the like; 1-ethynyl-1-trimethylsiloxy hexanaphthene; Two (2,2-dimethyl--2-butyne oxygen base) dimethylsilane; And alkenyl siloxane, for example 1,3,5,7-tetramethyl--1,3,5,7-tetrem thiazolinyl cyclotetrasiloxane, 1,3,5,7-tetramethyl--1,3,5,7-four hexenyl cyclotetrasiloxanes or the like.The incorporation of this hydrosilylation reactions suppressor factor (E) is usually in the scope of component (A) 0.001 to 5 mass parts of per 100 mass parts, but can be according to circumstances selects according to amount and the amount of the silicon bonded hydrogen atom in the component (C), the desired working life and the Working environment of the senior thiazolinyl in the performance of the type of component (E), the hydride siloxane catalysts that mixes and consumption, the component (A).
Compsn of the present invention comprise component (A), (B), (C) and (D) with optional (E), and be well suited for especially as solvent-free curable organic polysiloxane compsn.The organopolysiloxane resins that contains thiazolinyl also can be impregnated in the compsn of the present invention, so that reduce by the peeling force of cured layer to pressure-sensitive adhesive and viscous substance demonstration.Also can mix thickening material, particulate silicon-dioxide or the like for example is to improve the viscosity of coating baths.Especially, when compsn of the present invention uses with solvent-free form, but be based on the Consideration of the coating on the base material of sheet form; The viscosity of composition in its entirety in the time of 25 ℃ is preferably at 50mpa s to 10; The scope of 000mpa s, and more preferably from 100mpas to 5,000mpa s.
On the other hand, when realizing that especially thin coating is target, compsn of the present invention can be dispersed in the known organic solvent and use.Organic solvent can be exemplified as aromatic hydrocarbon solvent, for example toluene, YLENE or the like; Aliphatic hydrocarbon solvent, for example hexane, octane, isoparaffin or the like; Ketone solvent, routine acetone, methyl ethyl ketone, MIBK or the like; Ester solvent, for example ETHYLE ACETATE, isobutyl acetate or the like; Ether solvents, Di Iso Propyl Ether, 1 for example, 4-diox or the like; Cyclic polysiloxanes with polymerization degree of 3 to 6, for example hexamethyl cyclotrisiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentaandoxane or the like; Halohydrocarbon, for example trieline, tetrachloroethylene, trifluoromethylbenzene, 1, two (trifluoromethyl) benzene of 3-, methyl penta fluoro benzene or the like.Go up under the situation of application of thin coating at the base material (for example polyolefine) of the sheet form with low heat resistant, based on curability and swelling incident, what preferably use is ether solvents.Should note; Under the situation of shallow layer, of the present invention possibly be not satisfied about following technique effect: thick layer is applied to the inhibition that when being superior on the base material using with shallow layer kinetic friction coefficient increased and in the little dependency of the kinetic friction coefficient of thick layer under the situation on the base material to speed.
Can the optional component except that aforementioned component be added to according in the curable organic polysiloxane compsn of the present invention.Can add known additives, as comprise the adhesion promotor of alkoxysilane compound containing trialkylsilyl group in molecular structure, for example 3-glycidoxypropyltrimewasxysilane, 3-methacryloxypropyl trimethoxy silane or the like; Oxidation retarder, for example phenol type, quinoid, amine type, phosphorus type, phosphite type, sulphur type, thioether type or the like; Photostabilizer, for example triazole type, benzophenone type or the like; Fire retardant, for example phosphate type, halogen-type, phosphorus type, antimony type or the like; One or more comprise the static inhibitor of cationic surfactant, aniorfic surfactant, nonionogenic tenside or the like; Thermo-stabilizer; Dyestuff; Pigment or the like.
Especially; When the goods of sheet form with the cured layer that provides by compsn according to the present invention as surface protective plate; With the protection optics (for example; Liquid crystal board, plasma display, polarising sheet, phase retardation plate or the like) surface or electronic/electric (for example, printed substrate, unicircuit, transistor, electrical condenser or the like) surperficial the time, preferably add static inhibitor.
Can be through simply with component (A) to (D), the optional component of component (E) and any other be mixed to and evenly prepares compsn of the present invention in case of necessity.Not restriction especially of interpolation order to component; Yet, in the time of after compsn is mixing, will can not using immediately, preferably with component (A) (B) with (C) mixture and component (D) separate storage, mix them immediately before in use then.Comprising component (A) to (D) and also comprising under the situation of compsn of component (E), the incorporation of component (E) preferably is conditioned, and does not experience crosslinkedly at ambient temperature to provide, but experiences crosslinked and cured compositions down applying heat.
Be coated on equably through organopolysiloxane composition on the base material of sheet form and under the condition that is enough to cause hydrosilylation reactions (regulate component (A) with (C) crosslinked), heat, can prepare the smoothness that has the excellence of demonstrating in its surface, excellent transparency and the goods of the sheet form of the adhering cured layer of the excellence of the base material of sheet form with foregoing curable of the present invention.Cured layer through solidifying compsn of the present invention and providing also has other advantages, and promptly it has excellent flexibility and excellent ventilation property, even and when on the target material that is applied to not have flat shape, demonstrate bubble inclusion seldom.Therefore, the anti-adhesion performance that it is very suitable for being used for cured layer all is crucial application with its adhesivity to the object of need protection, as in the situation of the protective membrane of optical display and glass surface.
Especially, curable organic polysiloxane compsn of the present invention can provide the goods of sheet form, for the goods of this sheet form, through with different application rate (and particularly with 0.6g/m 2(=thin coating) and 1.6g/m 2The coating of (=thick)) base material that compsn is applied to the sheet form (for example; Vilaterm-laminated paper or polyethylene terephthalate film) go up and in each case the % of the kinetic friction coefficient through under 130 ℃, applying the cured layer that heat provided in 30 seconds increase (Δ) and be no more than 10%; And curable organic polysiloxane compsn of the present invention can form the variation with respect to application rate, the cured layer that the increase of kinetic friction coefficient is suppressed usually or suppresses.In addition, the goods that the present invention can provide the wherein increase of the kinetic friction coefficient of aforementioned definitions to be no more than 5% sheet form, and even the goods of-15% to 3% the sheet form of increasing to of kinetic friction coefficient can be provided.
" kinetic friction coefficient of cured layer " in the % of the kinetic friction coefficient " increase (Δ) " is the value that has the kinetic friction coefficient between the front and back of base material of sheet form of cured layer in its surface; This value is after this cured layer forms one day, to pass through to use surveying instrument (for example Tensilon tension testing machine) and 1000g load based on the P8147 of JIS; 10mm/ minute velocity of displacement, 23 ℃ temperature and the environment with 65% humidity, it is determined to measure kinetic friction coefficient.
When comprising having with 0.6g/m through preceding method 2The sample of base material of sheet form of the cured layer that obtains of application rate on comprise having with 1.6g/m 2The sample of base material of sheet form of the cured layer that obtains of application rate on when measuring kinetic friction coefficient, the % of kinetic friction coefficient increases the value that (Δ) is to use following formula to measure, and is that the percentage ratio of the kinetic friction coefficient of cured layer increases,
Δ (%)={ (with 1.6g/m 2The kinetic friction coefficient of the cured layer of coating-with 0.6g/m 2The kinetic friction coefficient of the cured layer of coating)/with 0.6g/m 2The kinetic friction coefficient of the cured layer of coating } * 100.
Can use roughly flat and have the width that is suitable for application-specific and the base material of thickness; For example; Band, film or the like; And be not restricted to the base material of sheet form especially, and specific examples is the base material of the compound sheet form of paper, synthetic resin film, fabric and textiles, synthon, tinsel (for example aluminium foil, Copper Foil or the like), spun glass and the substrate preparation through a plurality of aforesaid forms of lamination.
Synthetic resin film can be exemplified as the for example synthetic resin film of polyester, tetrafluoroethylene, polyimide, polyphenylene sulfide, polymeric amide, polycarbonate, PS, Vestolen PP 7052, Vilaterm, SE, polyethylene terephthalate or the like.Because it is transparent that cured layer of the present invention comes down to, the base material of the sheet form of the high-clarity of selecting mainly to be made up of these synthetic resin films is useful as the base material of transparent in fact sheet form for the protective membrane that acquisition demonstrates excellent transparency.
Paper can be exemplified as Japan paper, synthetic paper, polyolefine-laminated paper, and be Vilaterm-laminated paper especially, the paper of fiber board and clay coated.
The thickness of the base material of the sheet form that preceding text are quoted from is not as an example limited especially, but usually at about 5 μ m to 300 μ m.For the base material that improves the sheet form and the adhesivity between the cured layer, can use the support membrane that has experienced prime treatment, corona treatment, etch processes or plasma treatment.Useful in this respect paint base composition can be exemplified as the polydiorganosiloxane that is included in end and has the SiOH group, contain the ZGK 5 of SiH group and/or contain the polycondensation-type silicone paint base composition of the ZGK 5 and the polycondensation catalyst of alkoxyl group, and can be exemplified as to comprise and contain gathering diorganopolysiloxanecompositions, containing the silicone paint base composition of addition type of ZGK 5 and the addition-catalysts of SiH group of thiazolinyl (for example vinyl).
The relative face of the base material of the sheet form of being processed by cured layer can experience surface treatment, for example anti scuffing processing, antifouling processing, anti-fingerprint processing, antiglare processing, anti-reflex treated, antistatic treatment or the like.These surface treatments are carried out after can be on the base material that curable organic polysiloxane compsn of the present invention is coated on the sheet form, or can be after carrying out surface treatment the set of applications compound.
Anti scuffing is handled (hard coat processing) can be exemplified as the processing that applies agent through for example acrylate type, silicone type, propylene oxide type, inorganic type or organic/inorganic mixed type firmly.
Antifouling processing can be exemplified as through the for example processing of fluorine type, silicone type, ceramic mould or photochemical catalysis formulation stainproofing agent.
Anti-reflex treated can be exemplified as the wet treatment based on the coating with fluorine type for example or silicone type anti-reflection agent, and can be exemplified as the dry-cure of using vapour deposition or sputter.Antistatic agent treatment can be exemplified as uses the for example processing of the metal mold static inhibitor of surfactant type, silicone type, organic boron type, conductive polymer type, MOX type or vapour deposition.
Usually be suitable for solidifying according to curable organic polysiloxane compsn of the present invention from 50 ℃ to 200 ℃ temperature, be higher than 200 ℃ temperature but can use, as long as the base material of sheet form has good thermotolerance at the base material of sheet form.To not restriction especially of heating means, and can be for example through in convection oven, heating, pass long process furnace and using the radiation heating of ir lamp or halogen lamp to heat.Also can applying and being exposed to uv-radiation and be cured through combining thermal.When component (D) is platinum/alkenyl siloxane complex compound catalyst; Even when when mixing this catalyzer with respect to the amount of the platinum of the 80ppm to 200ppm of total composition; Promptly 1 second to 40 seconds at short notice, can be easy to obtain to demonstrate excellent smoothness, excellent transparency down and to the adhering cured layer of the excellence of the base material of sheet form at 100 ℃ to 150 ℃.
On the other hand; At the base material of sheet form for example under the situation of polyolefine or the like with low heat resistant; After curable organic polysiloxane compsn of the present invention was applied to the base material of a for example polyolefinic form, curable organic polysiloxane compsn of the present invention was preferably at 50 ℃ to 100 ℃ and more preferably under 50 ℃ to 80 ℃ low temperature, be heated.In this case, at 30 seconds to several minutes, for example under 1 minute to 10 minutes set time, can realize consistent curing.
About curable organic polysiloxane compsn of the present invention being coated on the lip-deep method of the base material of sheet form, can use following method and unrestricted: submergence, spraying, intaglio plate coating, offset printing coating, the coating of offset printing intaglio plate, use transfer-type roll-coater for example roller coat, reverse roll coating, airblade coating, use curtain-type coating, comma coating, the coating of Mayer bar type of curtain coater for example and be used to form other known methods of cured layer.
Application rate is arranged to consistent with practical application, on the base material of sheet form, 0.1g/m is provided but use usually 2To 200.0g/m 2Amount.When target is a shallow layer of using curable organic ZGK 5 of the present invention when being adherent layer, application rate may be selected to be 0.1g/m 2To 1.0g/m 2, and when target be to need under the situation of non-stick property and adhering application (for example protective membrane service) when using thick layer, application rate may be selected to be 1.0g/m 2To 10.0g/m 2Especially, especially because in the smoothness with the excellence under the situation of the administered of thick layer, curable organic ZGK 5 of the present invention is preferably with 1.0g/m 2To 10.0g/m 2, and especially preferably with 1.0g/m 2To 5.0g/m 2Coating.
The cured layer that is provided by curable organic polysiloxane compsn of the present invention has the effect as the solidified adherent layer.On the other hand, the using to have of the thick layer of said composition also can be used the advantage of this cured layer as the binder layer of microviscosity, and the binder layer of this microviscosity also has and the same excellent non-stick property of non-stick property under the situation of shallow layer.Be described below the application of the compsn of the present invention that utilizes these characteristics.
Compsn of the present invention is used to form and demonstrates excellent surface smoothing property and to the cured layer of the non-stick property of the excellence of pressure-sensitive adhesive and viscous substance.Compsn of the present invention can be very suitable for forming agent as the solidified antiadhesion barrier especially, for example prints paper (process paper), asphalt packages paper and various plastic film.
Especially; Because its non-stick property to the excellence of another kind of pressure-sensitive adhesive or viscous layer; The cured layer that is provided by compsn of the present invention can be used as the adherent layer of the seal paper of the laminate that comprises pressure-sensitive adhesive or viscous layer; As the adherent layer of the parcel or the paper of packaged pressure sensitive tackiness agent or viscous substance, as such as adherent layer of the laminate of Pressuresensitive Tape, Pressuresensitive Label or the like.Particularly; The curable organic polysiloxane compsn of the application of the invention; Can obtain laminate; It is through following manufacturing: will comprise the base material (S1) that is applied to the sheet form by the adhesive sheet (SA) of the formation of pressure-sensitive adhesive layer (or bonding coat) that on the one side at least of the base material of sheet form, provides; The base material of sheet form (S1) comprises the base material of a kind of form, and the base material of this sheet form has the cured layer (separating layer or adherent layer) that provides through thermofixation curable organic polysiloxane compsn of the present invention on the one side at least at it, wherein uses to make formation of pressure-sensitive adhesive layer contact with above-mentioned cured layer.
Be used for the pressure-sensitive adhesive of the laminate that preceding text mention or pressure-sensitive adhesive that viscous substance is represented four corner and tackiness agent or the like, and can be exemplified as pressure-sensitive adhesive based on acrylate resin, based on the pressure-sensitive adhesive of rubber, based on the pressure-sensitive adhesive of silicone, based on the tackiness agent of acrylate resin, based on elastomeric tackiness agent, based on the tackiness agent of silicone, based on the tackiness agent of epoxy resin with based on the tackiness agent of urethane.Other instances are pitch, viscous food product, for example Herba Gonostegiae Hirtae (rice cake) and paste, glue, starch and bird lime.
On the other hand; Through using the thick layer of compsn of the present invention; The cured layer that said composition provides also can be used as the bonding coat of the microviscosity that also has the same excellent anti-adhesion characteristic with anti-adhesion characteristic under the situation of shallow layer on the other hand; And it is especially very useful, because it can be used as screening glass, can repeat the bonding coat of antiseized adhesive sheet or the like.Such bonding coat is in case by being adhered to target compound, just keeps adhesion steady in a long-term and that do not slide or peel off at binding site, and has the advantage of the peelable ability of excellence secular adhesion after.In addition, be easy to use again, and under the situation of the life-time service of screening glass, cured layer has resistance to deformation, bleaches, produces the advantage of after-tack or the like.
Screening glass with the cured layer that is provided by compsn of the present invention maybe can repeat antiseized adhesive sheet and can be used for following application: during transportation, processing or solidifying member; It is adhered to the surface of member (for example, tinsel or plate, by tinsel or plate, aluminium sash, resin sheet or plate, ornamental steel disc or plate, SE-laminated steel disc or plate, sheet glass or plate or the like of being sprayed paint) and the surface of protection member.In addition; It can be very suitable for the screening glass as in following process: in the process that is used to produce various types of LCD panels (being also known as monitor and indicating meter), in the process of the channel of allocation of polarising sheet, in the process of the production of the resin component element that is used for various types of instruments and machine (for example automobile) and channel of allocation, be used for the process of food product pack, and or the like.
Similarly, be easy to repeated application owing to be provided with the screening glass of the bonding coat that comprises cured layer of the present invention, this screening glass is suitable for as following various types of screening glass.Under production, distribution and a plurality of environment between the usage period of these indicating meters, can use screening glass of the present invention, realize preventing surface disturbance, prevent surface contamination, prevent fingerprint, prevent static, avoid reflecting, obtaining the target of antistripping effect or the like.
Use curable organic polysiloxane compsn of the present invention; The base material (S1) that the residual plate (SR) of the adherent layer that provides on the one side at least of the base material through will being included in the sheet form is applied to the sheet form can obtain to constitute the laminate of this surface protective plate particularly; The base material of sheet form (S1) comprises the base material of a kind of form; The base material of this sheet form has the cured layer (adherent layer and bonding coat) that provides through thermofixation curable organic polysiloxane compsn of the present invention on the one side at least at it, wherein uses to make adherent layer contact with above-mentioned cured layer.
Embodiment
Provide embodiment and comparing embodiment below, so that describe the present invention particularly; Yet, the invention is not restricted to following embodiment.Among the embodiment below, part is a mass parts in all cases; Hex representes hexenyl; And Me representes methyl.Viscosity and plasticity are the values of measuring down at 25 ℃.Through using following method to measure kinetic friction coefficient, estimate the smoothness of the cured layer that provides by the curable organic polysiloxane compsn.
[formation of cured layer]
Use the printing trier consistent (from Mei Seisakusho Co., the RI-2 of Ltd.), to provide by siloxanes 0.6g/m with application rate 2, 1.0g/m 2Or 1.6g/m 2Amount the curable organic polysiloxane compsn is coated on the surface of base material.After coating, in convection oven 130 ℃ of following heated substrates 30 seconds, on substrate surface, to form cured layer.
[measuring the kinetic friction coefficient (for practical embodiments 1 to 3, comparing embodiment 1 to 3) of Vilaterm-laminated paper]
Use the Vilaterm-laminated paper that has the cured layer that obtains through aforesaid method in its surface; Prepare measure sample one day after in curing; Wherein the untreated back of Vilaterm-laminated paper (paper base material side) pasted cured layer (surface, solidified layer of silicone); And use the Tensilon tension testing machine (trade mark: Tensilon RTC-1210, from Orientec Co., Ltd.) measure the preceding/back kinetic friction coefficient that has according to the Vilaterm-laminated paper of the cured layer of above-mentioned acquisition.Use following conditions under each independent velocity of displacement, to measure: load: 1000g; The velocity of displacement of 10mm/ minute, 30mm/ minute or 100mm/ minute; The surrounding environment of 23 ℃ and 65% humidity.
[measuring the kinetic friction coefficient (for practical embodiments 4 to 6) of polyethylene terephthalate film]
Use polyethylene terephthalate (PET) film (thickness=50 μ m) that has the cured layer that obtains through aforesaid method in its surface; Prepare measure sample one day after in curing; Wherein the untreated back of polyethylene terephthalate film (PET base material side) pasted cured layer (surface, solidified layer of silicone); And use Tensilon tension testing machine (trade mark: Tensilon RTC-1210; From Orientec Co., Ltd.) measure the preceding/back kinetic friction coefficient have according to the PET film of the cured layer of above-mentioned acquisition.Use following conditions under each independent velocity of displacement, to measure: load: 1000g; The velocity of displacement of 10mm/ minute, 30mm/ minute or 100mm/ minute; The surrounding environment of 23 ℃ and 65% humidity.
[% of kinetic friction coefficient increases (Δ)]
Has 0.6g/m through preceding method 2The sample of application rate on and have 1.6g/m 2Measure kinetic friction coefficient (value that records with the velocity of displacement of 10mm) on the sample of application rate, and confirm that according to following formula the % of the kinetic friction coefficient of cured layer increases (Δ).Confirmed that with the benchmark value of 100mm/ minute velocity of displacement the percentage ratio of kinetic friction coefficient increases (table 1 and table 3) with 30mm/ minute similarly.
Δ (%)={ (with 1.6g/m 2The kinetic friction coefficient of the cured layer of coating-with 0.6g/m 2The kinetic friction coefficient of the cured layer of coating)/with 0.6g/m 2The kinetic friction coefficient of the cured layer of coating } * 100.
[speed dependence of the kinetic friction coefficient of cured layer: (δ S) %]
On the cured layer of same coated speed, measured kinetic friction coefficient with 10mm/ minute with 100mm/ minute velocity of displacement, and the formula below using confirms that the % of the kinetic friction coefficient of cured layer changes (δ s) according to preceding method.
δ s (%)={ kinetic friction coefficient of the cured layer of (kinetic friction coefficient of the cured layer of the kinetic friction coefficient of the cured layer of measuring with 100mm/ minute velocity of displacement-measure with 10mm/ minute velocity of displacement)/measure with 10mm/ minute velocity of displacement } * 100.
[practical embodiments 1]
With 93.6 parts (A1) at two ends of molecular chain and have in the side chain position that the viscosity of hexenyl, 220mPas, the YSR 3286 with hexenyl content of 1.15 quality %, 3.0 parts (B1) have the plasticity of 1.4mm and have by the dimethyl siloxane glue of ethenyl blocking, 3.2 parts (C1) at molecule chain end 25mPas viscosity and 1.6 quality % the silicon bonding hydrogen richness and in the methylhydrogenpolysi,oxane of two ends of molecular chain by trimethylsiloxy-terminated; And 0.2 part of (E) 1-ethynyl-1-hexalin (ETCH) is mixed to evenly.The Platinic chloride 1 that (D) is had the platinum content of 0.6 quality % with the addition of platinum amount that 100ppm is provided; 3-divinyl-1; 1-3; 3-tetramethyl disiloxane complex compound is blended in the resulting mixture, has the solvent-free curable organic polysiloxane compsn of 800mPas viscosity thereby produce, and is appointed as compsn 1.Silicon-bonded hydrogen atom in the said composition (Si-) H/Hex mol ratio is 1.27.Through preceding method with 0.6g/m 2, 1.0g/m 2And 1.6g/m 2Application rate resulting organopolysiloxane composition is applied on Vilaterm-laminated paper, and solidify, and on each resulting cured layer, measure kinetic friction coefficient.Outcome record is in table 1.
[practical embodiments 2]
With 46.8 parts (A1) at two ends of molecular chain with in the side chain position, have hexenyl; Viscosity with 220mPas; 1.15 the YSR 3286 of the hexenyl content of quality %; 44.5 part (A2) is at two ends of molecular chain and in the side chain position, have hexenyl; The YSR 3286 of the hexenyl content of the viscosity of 100mPas and 3.00 quality %; 3.0 part (B1) has the plasticity of 1.4mm and at the dimethyl siloxane glue of molecule chain end by ethenyl blocking; Part 7.8 (C1) have 25mPas viscosity and 1.6 quality % silicon bonded hydrogen atom content and be mixed to evenly at two ends of molecular chain methylhydrogenpolysi,oxane and 0.2 part of (E) 1-ethynyl-1-hexalin (ETCH) by trimethylsiloxy-terminated.The Platinic chloride 1 that (D) is had the platinum content of 0.6 quality % with the addition of platinum amount that 100ppm is provided; 3-divinyl-1; 1-3; 3-tetramethyl disiloxane complex compound is blended in the resulting mixture, has the solvent-free curable organic polysiloxane compsn of 600mPas viscosity thereby produce, and is appointed as compsn 2.Silicon-bonded hydrogen atom in the said composition (Si-) H/Hex mol ratio is 1.25.Through preceding method with 0.6g/m 2, 1.0g/m 2And 1.6g/m 2Application rate resulting organopolysiloxane composition is applied on Vilaterm-laminated paper, and solidify, and on each resulting cured layer, measure kinetic friction coefficient.Outcome record is in table 1.
[practical embodiments 3]
With 89.0 parts (A2) at two ends of molecular chain with in the side chain position, have hexenyl; The YSR 3286 of hexenyl content with viscosity and 3.00 quality % of 100mPas; 3.0 part (B1) has the plasticity of 1.4mm and at the dimethyl siloxane glue of molecule chain end by ethenyl blocking; Part 7.8 (C1) have 25mPas viscosity and 1.6 quality % silicon bonded hydrogen atom content and be mixed to evenly at two ends of molecular chain methylhydrogenpolysi,oxane and 0.2 part of (E) 1-ethynyl-1-hexalin (ETCH) by trimethylsiloxy-terminated.The Platinic chloride 1 that (D) is had the platinum content of 0.6 quality % with the addition of platinum amount that 100ppm is provided; 3-divinyl-1; 1-3; 3-tetramethyl disiloxane complex compound is blended in the resulting mixture, has the solvent-free curable organic polysiloxane compsn of 300mPas viscosity thereby produce, and is appointed as compsn 3.Silicon-bonded hydrogen atom in the said composition (Si-) H/Hex mol ratio is 1.25.Through preceding method with 0.6g/m 2, 1.0g/m 2And 1.6g/m 2Application rate resulting organopolysiloxane composition is applied on Vilaterm-laminated paper, and solidify, and on each resulting cured layer, measure kinetic friction coefficient.Outcome record is in table 1.
[comparing embodiment 1]
Defer to the program of practical embodiments 2; But use 91.3 parts (CA1) at two ends of molecular chain and in the side chain position, have vinyl, the YSR 3286 of contents of ethylene with viscosity and 1.60 quality % of 60mPas replaces said component (A1) and component (A2), to obtain solvent-free curable organic polysiloxane compsn (comparative composition 1).Through preceding method with 0.6g/m 2, 1.0g/m 2And 1.6g/m 2Application rate resulting organopolysiloxane composition is applied on Vilaterm-laminated paper, and solidify, and on each resulting cured layer, measure kinetic friction coefficient.Outcome record is in table 1.
[comparing embodiment 2]
Defer to the program of practical embodiments 2; But use 91.3 parts (CA1) at two ends of molecular chain and in the side chain position, have hexenyl, the YSR 3286 of contents of ethylene with viscosity and 0.70 quality % of 350mPas replaces said component (A1) and component (A2), to obtain solvent-free curable organic polysiloxane compsn (comparative composition 2).Through preceding method with 0.6g/m 2, 1.0g/m 2And 1.6g/m 2Application rate resulting organopolysiloxane composition is applied on Vilaterm-laminated paper, and solidify, and on each resulting cured layer, measure kinetic friction coefficient.Outcome record is in table 1.
[comparing embodiment 3]
Defer to the program of practical embodiments 2; But use 91.3 parts (CA1) at two ends of molecular chain and in the side chain position, have hexenyl, the YSR 3286 of contents of ethylene with viscosity and 8.00 quality % of 100mPas replaces said component (A1) and component (A2), to obtain solvent-free curable organic polysiloxane compsn (comparative composition 2).Through preceding method with 0.6g/m 2, 1.0g/m 2And 1.6g/m 2Application rate resulting organopolysiloxane composition is applied on Vilaterm-laminated paper, and solidify, and on each resulting cured layer, measure kinetic friction coefficient.Outcome record is in table 1.
In addition, use the method that describes below to measure the peeling force of the cured coating of practical embodiments 2, comparing embodiment 1 to 3.The result is illustrated in the table 2.
[peeling force evaluation]
Use applicator in by solid 30g/m 2Will based on the pressure-sensitive adhesive of acrylic type solvent (trade(brand)name: Oribain BPS-5127, from Toyo Ink Mfg.Co., Ltd.) be uniformly coated on the surface of the solidified coating that produces through aforesaid method, and under 70 ℃, heat, continue 2 minutes.Then with fine paper (weight per unit area=64g/m 2) stick on the surface of this acrylic type pressure-sensitive adhesive, and resulting sticking paper is cut into the width of 5cm, with the preparation test sample.With 20g/cm 2Load placed on this test sample, in air, under the humidity of 25 ℃ temperature and 60%, left standstill 24 hours subsequently.(the general test apparatus of Tensilon from A & D Co., Ltd.), with the angle of 180 degree with under 0.3m/ minute peeling rate, peel off the paper of adhesion, and is measured the needed power (N) of peeling off to use tension testing machine then.
[practical embodiments 4]
On the cured layer that carries out according to embodiment 1, measure kinetic friction coefficient, but in this case, use polyethylene terephthalate (PET) film rather than Vilaterm-laminated paper.Outcome record is in table 2.
[practical embodiments 5]
On the cured layer that carries out according to embodiment 2, measure kinetic friction coefficient, but in this case, use polyethylene terephthalate (PET) film rather than Vilaterm-laminated paper.Outcome record is in table 2.
[practical embodiments 6]
On the cured layer that carries out according to embodiment 3, measure kinetic friction coefficient, but in this case, use polyethylene terephthalate (PET) film rather than Vilaterm-laminated paper.Outcome record is in table 2.
[table 1]
Figure BDA0000124854160000231
*The increase of kinetic friction coefficient
[table 2]
Peeling force (mN/50mm) Peeling rate (0.3m/ minute)
Embodiment 2 (compsn 2) 230
Comparing embodiment 1 (comparative composition 1) 480
Comparing embodiment 2 (comparative composition 2) 290
Comparing embodiment 3 (comparative composition 3) 330
[table 3]
Figure BDA0000124854160000241
*The increase of kinetic friction coefficient
Just as shown in table 1, for using Vilaterm-laminated paper as base material, compsn of the present invention, and be in particular compsn 2 and compsn 3, though in applied thickness from 0.6g/cm 2Be changed to 1.0g/cm 2To 1.6g/cm 2The time, the inhibition to the kinetic friction coefficient increase of cured layer is provided, and is provided at 1.6g/m 2Application rate (thick layer) under the dependent inhibition to kinetic friction coefficient and speed.In addition, use compsn 3, even with 0.6g/m 2Application rate (shallow layer) under, the dependency of kinetic friction coefficient and speed is pressed into and is lower than 20%.On the other hand, in the cured coating of comparing embodiment 1 to 3, especially under greater than 30mm/ minute velocity of displacement, from 0.6 to 1.0 to 1.6g/cm 2Down, the dependent change of kinetic friction coefficient and speed is higher than 20%, and this depends on thickness.For the cured coating of comparing embodiment 2 and 3, with 1.6g/cm 2Kinetic friction coefficient and the dependency of speed of application rate (thick layer) be very large value.In addition, just as shown in table 2, the peeling force of comparing embodiment is higher relatively than the peeling force of practical embodiments.
Just as shown in table 2, for using the polyethylene terephthalate film as base material, the application's compsn, and be compsn 2 and 3 especially, though in applied thickness from 0.6g/cm 2Be changed to 1.0g/cm 2To 1.6g/cm 2The time, the inhibition to the kinetic friction coefficient increase of cured layer is provided.

Claims (14)

1. curable organic polysiloxane compsn comprises:
(A) 100 mass parts have 25 ℃ the time 20mPas to 500mPas viscosity and the C of 1.0 to 5.0 quality % scopes 4-12At least a organopolysiloxane of senior thiazolinyl content,
(B) 0.5 to 15 mass parts from colloidal state when having 25 ℃ at least 1,000, the fluidic scope of 000mPas viscosity and have the C of 0.005 to 0.100 quality % 2-12The organopolysiloxane of thiazolinyl content,
(C) per molecule has the organic hydrogen polysiloxanes of at least two silicon bonded hydrogen atom (Si-H), and its amount is 0.5 to 5 for the value of the mol ratio that makes SiH group and the thiazolinyl in component (A) and the component (B) in the component (C), and
(D) platinum of catalytic amount-type catalyzer.
2. curable organic polysiloxane compsn according to claim 1, wherein component (A) is the mixture of at least two kinds of organopolysiloxanes, wherein
(A1) has the C of 0.5 to 2.0 quality % scope 4-12The organopolysiloxane of senior thiazolinyl content with
(A2) has the C of 2.5 to 5.0 quality % scopes 4-12The organopolysiloxane of senior thiazolinyl content
Mass ratio with 1/4 to 4/1 mixes.
3. curable organic polysiloxane compsn according to claim 1 and 2, wherein the senior thiazolinyl in the component (A) is a hexenyl.
4. curable organic polysiloxane compsn according to claim 1, wherein component (B) is at two ends of molecular chain dimethyl polysiloxane by dimethylvinylsiloxy-terminated.
5. according to each described curable organic polysiloxane compsn in the claim 1 to 4, it is characterized in that said compsn is solvent-free, and the viscosity of said composition in its entirety 100mPas to 5 when being 25 ℃, 000mPas.
6. according to each described curable organic polysiloxane compsn in the claim 1 to 5; It is characterized in that, when on through the following cured layer that provides, measuring kinetic friction coefficient with 10mm/ minute velocity of displacement: with 0.6g/m according to the P8147 of JIS 2With with 1.6g/m 2Said curable organic polysiloxane compsn is coated on the base material of sheet form, and in each case through being cured in 30 seconds 130 ℃ of heating; The % of the kinetic friction coefficient that then calculates through following formula increases (Δ) and is no more than 10%:
The % increase (Δ) of kinetic friction coefficient=[{ (with 1.6g/m 2The kinetic friction coefficient of the said cured layer of coating)-(with 0.6g/m 2The kinetic friction coefficient of the said cured layer of coating) }/with 0.6g/m 2The kinetic friction coefficient of the said cured layer of coating] * 100.
7. the goods of a sheet form, it has the cured layer that provides according to each described curable organic polysiloxane compsn in the claim 1 to 6 through thermofixation.
8. the goods of a form according to claim 7 is characterized in that said cured layer is through with 1.0g/m 2To 10.0g/m 2Speed will be coated on the base material of sheet form and according to each described curable organic polysiloxane compsn in the claim 1 to 6 and solidify the cured layer that said compsn provides through applying heat.
9. according to the goods of claim 7 or 8 described forms, wherein said base material is Vilaterm-laminated paper or plastic film.
10. surface protective plate, it comprises the goods according to each described form in the claim 7 to 9.
11. a method for preparing according to the goods of claim 7 or 8 described forms, said method feature is:
Use 1.0g/m 2To 10.0g/m 2The base material according to each described curable organic polysiloxane compsn coated sheets form in the claim 1 to 6; And
Be cured and form cured layer through applying heat.
12. a method for preparing surface protective plate is characterized in that:
Use 1.0g/m 2To 10.0g/m 2The base material according to the transparent in fact sheet form of each described curable organic polysiloxane compsn coating in the claim 1 to 6; And
Be cured and form cured layer through applying heat.
13. laminate; It is through following manufacturing: the adhesive sheet (SA) that will be included in the formation of pressure-sensitive adhesive layer that provides on the one side at least of base material of sheet form is applied to the base material (S1) of sheet form; The base material of said form (S1) comprises the base material of a kind of form; The base material of this sheet form has through thermofixation according to the cured layer that each described curable organic polysiloxane compsn in the claim 1 to 6 provides on the one side at it at least, wherein uses to make said formation of pressure-sensitive adhesive layer contact with above-mentioned cured layer.
14. laminate; It is through following manufacturing: the residual plate (SR) that will be included in the adherent layer that provides on the one side at least of base material of sheet form is applied to the base material (S1) of sheet form; The base material of said form (S1) comprises the base material of a kind of form; The base material of this sheet form has through thermofixation according to the cured layer that each described curable organic polysiloxane compsn in the claim 1 to 6 provides on the one side at it at least, wherein uses to make said adherent layer contact with above-mentioned cured layer.
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