WO2002042388A1 - Compositions a base de silicones fonctionnalisees durcissables sous irradiation et revêtements anti-adherents obtenus a partir de ces compositions - Google Patents
Compositions a base de silicones fonctionnalisees durcissables sous irradiation et revêtements anti-adherents obtenus a partir de ces compositions Download PDFInfo
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- WO2002042388A1 WO2002042388A1 PCT/FR2001/003629 FR0103629W WO0242388A1 WO 2002042388 A1 WO2002042388 A1 WO 2002042388A1 FR 0103629 W FR0103629 W FR 0103629W WO 0242388 A1 WO0242388 A1 WO 0242388A1
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- carbon atoms
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- polyorganosiloxane
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/55—Boron-containing compounds
-
- 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
- C09D183/06—Polysiloxanes containing silicon bound to oxygen-containing groups
Definitions
- compositions based on functionalized silicones curable under irradiation and non-stick coatings obtained from these compositions.
- the present invention relates to new silicone compositions curable under UV irradiation and / or electron beam. More specifically, the subject of the invention is new compositions for coatings based on a mixture of polyorganosiloxanes A carrying functions on the D and T units and polyorganosiloxanes B carrying functions on the M units; these functions being crosslinkable and / or polymerizable under UV irradiation or electron beam. These mixtures are effectively crosslinked and / or polymerized under irradiation in the presence of compatible cationic photoinitiators and are particularly suitable for their use in the field of non-stick paper supports.
- curable silicone compositions to make surfaces non-adherent to materials which would normally adhere to them.
- cationic crosslinkable and / or photopolymerizable compositions to obtain coatings with non-stick properties consisting of silicone oils or resins functionalized with epoxide (s), alkenylether (s), oxetane ( s), etc.
- Non-stick coatings are useful for many applications where it is necessary to make a surface or a material which would normally adhere to them non-stick to other materials.
- the silicone compositions are used as coatings for release papers and can therefore be combined with adhesive elements which can be easily released without losing their adhesive properties, these elements being pressure-sensitive adhesives for labels, decorative laminates, transfer tape, etc.
- Silicone-based non-stick coatings applied to paper, polyethylene, polypropylene, polyester and other such supports are also useful as non-stick surfaces for food handling and industrial packaging applications.
- a label is coated with an adhesive and associated with a non-adherent support, it is desirable that the latter be easily separated during use, without its quality of adhesion being reduced by the fact that it was separated from the support.
- the same principle applies to certain ribbons with a non-stick side and a stick side and which are supplied in reels.
- silicone-based non-stick coatings when combined with adhesives, give these associations, called silicone / adhesive complexes, a weak release force, stable over time, and stable whatever the pressure exerted. between the non-stick coating and the adhesive, while also ensuring that the adhesive has constant adhesion properties.
- the non-stick coatings must fulfill other conditions at best, and in particular, they must harden quickly and the photoinitiator must be selected to be miscible with the silicones of the composition.
- the silicone compositions developed are specifically adapted for the preparation of non-stick coatings and give the silicone / adhesive complexes a low release force; this detachment force being stable during storage over time and stable whatever the pressure exerted between the non-stick coating and the adhesive.
- the subject of the present invention is a crosslinkable and / or polymerizable composition for non-stick coating based on silicone, curable under irradiation, characterized in that it comprises:
- irradiation is carried out under UN radiation. and / or under an electron beam.
- UN radiation a wavelength of between 200 and 400 nanometers is preferably used between 230 and 360 nanometers.
- the irradiation time can be short, that is to say less than 1 second and, on the order of a few hundredths of a second for small thicknesses of coatings.
- the curing time is set (a) by the number of UN lamps. used, (b) by the duration of exposure to UN. and / or (c) by the distance between the composition and the lamp UN.
- Examples of usable devices for the electron beam are those with pulsed electron beams ("Scanned Electron Beam Acceleratoi") and those with curtained electron beams ("Electron Curtain Accelerator”) .
- the crosslinkable and / or polymerizable functions Fa are chosen from the group consisting of epoxy, and / or alkenylether and / or oxetane and / or dioxolane functions.
- the function Fa is an epoxy type function.
- the polyorganosiloxane A used is linear and consists of units D (i) of formula (I) and ends with units M (ii) of formula (II), or is cyclic and consists of units D (i) of formula (I) represented below:
- an R group (i) an R group, (ii) and / or a crosslinkable and / or polymerizable organofunctional group Fa, preferably an epoxyfunctional, oxetanefunctional, dioxolanefunctional and / or alkenyl etherfunctional group, linked to the silicon of the polyorganosiloxane via a divalent radical containing from 2 to 20 atoms carbon and possibly containing at least one heteroatom, preferably oxygen,
- the symbols R correspond to the definitions (1) (i) to (1) (iv) given above.
- Linear polyorganosiloxanes A can be oils of dynamic viscosity at 25 ° C, of the order of 10 to 10,000 mPa.s at 25 ° C (measured using a BROOKFIELD viscometer, according to AFNOR NFT 76 standard 102 of February 1972), generally of the order of 20 to 5000 mPa.s at 25 ° C and, more preferably still, from 20 to 600 mPa.s at 25 ° C, or gums having a molecular mass of l 'around 1,000,000.
- cyclic polyorganosiloxanes A consist of units (I) which may be, for example, of the dialkylsiloxy, alkylarylsiloxy, (alkyl) (group Fa) siloxy, or (aryl) (group Fa ) siloxy.
- These cyclic polyorganosiloxanes have a viscosity of the order of 1 to
- the crosslinkable and or polymerizable functions Fb are chosen from the group consisting of epoxy, and / or alkenylether and / or oxetane and / or dioxolane functions.
- the Fb function is an epoxy type function.
- the polyorganosiloxane B is linear and consists of units D (iii) of formula (III) and terminated by units M (iv) of formula (IV) shown below: Y
- (ii) and / or a crosslinkable and / or polymerizable organofunctional group Go preferably an epoxyfunctional, oxetanefunctional, dioxolanefunctional and / or alkenyl etherfunctional group, linked to the silicon of the polyorganosiloxane via a divalent radical containing from 2 to 20 carbon atoms and which may contain at least one heteroatom, preferably oxygen,
- the symbols R correspond to the definitions (1 ') (i) to
- the polyorganosiloxane B carries at least 2 units M with at least 2 Fb functions.
- the polyorganosiloxane B also carries at least one Fb function on at least one D unit of formula:
- the polyorganosiloxanes B used contain less than 1000 units D (iii), preferably from 10 to 500 units D (iii) and more particularly from 20 to 300 units D (iii).
- the polyorganosiloxanes B used comprise 4 to 10 organofunctional groups per macromolecular chain.
- Linear polyorganosiloxanes B are generally oils of dynamic viscosity of the order of 10 to 10,000 mPa.s at 25 ° C, preferably of the order of 20 to 5,000 mPa.s at 25 ° C and, more particularly again, from 20 to 600 mPa.s at 25 ° C.
- the reactive functions Fa and Fb can be of very varied structures.
- divalent radicals linking a functional group Fa or Fb of the epoxy and / or oxetane type mention may be made of those included in the following formulas:
- R 4 represents a linear or branched alkyl radical in As regards the functional groups Fa or Fb of dioxolane type, mention may be made of those contained in the following formulas:
- the onium borate used in the context of the present invention is judiciously chosen; in fact, it must be miscible with the silicone constituents (A) and (B) and therefore it must be capable of dissolving well or dispersing in the composition according to the invention.
- This onium borate is chosen from onium borates from an element from groups 15 to 17 of the periodic table [Chem. & Eng. News, vol. 63, No. 5, 26 of February 4, 1985] of which: a the cationic entity of borate is selected from: (1 ") the onium salts of formula (I):
- A represents an element from groups 15 to 17 such as for example: I, S, Se, P or N,
- R1 represents a CQ-C20 carbocyclic or heterocyclic aryl radical. said heterocyclic radical possibly containing as heteroelements nitrogen or sulfur,
- R2 represents Ri or a linear or branched C1-C30 alkyl or alkenyl radical! said radicals R1 and R ⁇ being optionally substituted by a C1-C25 alkoxy, C1-C25 alkyl, nitro, chloro, bromo, cyano, carboxy, ester or mercapto group, • n is an integer ranging from 1 to v + 1, v being the valence of the element A,
- R 3 identical or different, represent: t> a phenyl radical substituted by at least one electron-withdrawing group such as for example OCF3, CF3, NO2, CN, and / or by at least 2 halogen atoms (especially fluorine), and this when the cationic entity is an onium of an element from groups 15 to 17,
- a phenyl radical substituted by at least one element or an electron-withdrawing group in particular a halogen atom (especially fluorine), CF3, OCF3, NO2, CN, and this when the cationic entity is an organometallic complex of an element of the groups 4 to 10
- an aryl radical containing at least two aromatic rings such as for example biphenyl, naphthyl, optionally substituted by at least one element or an electron-withdrawing group, in particular a halogen atom (fluorine in particular), OCF3, CF3, NO2, CN, whatever the cationic entity.
- the species of the anionic borate entity which are very particularly suitable are the following: r [B (C 6 F 5 ) 4 ] - 5 ': [B (C 6 H 3 (CF 3 ) 2 ) 4] -
- the onium salts (1) which can be used are described in numerous documents, in particular in patents US-A-4,026,705, US-A-4,032,673, US-A-4 069 056, US-A-4 136 102, US-A-4 173 476. Among these, the following cations will be particularly favored:
- a second aspect of the present invention relates to a non-stick silicone / adhesive complex comprising at least one silicone coating applied to a first support and an adhesive coating applied to a second. support, characterized in that said silicone coating is derived from a mixture of polyorganosiloxane (s) (A) and (B) in the presence of a miscible photocell as defined above.
- the two supports are made of two separate materials, arranged so that the silicone coating of the first support is in contact with the adhesive coating of the second support.
- This embodiment is in particular illustrated by systems known as self-adhesive labels associated with a non-adherent support. In this particular case, the release force of the silicone / adhesive interface is exerted during the separation of the two supports.
- the two supports are constituted respectively by each of the two faces of the same material.
- This second embodiment is in particular illustrated by the systems known as adhesive tapes.
- the non-stick coating that is to say based on the silicone matrix and the adhesive coating are brought into contact during the winding of the support on itself.
- the release force is exerted at the silicone / adhesive interface under the effect of the separation of a lower face with an upper face of the material.
- the adhesive coating it can be very diverse in nature insofar as it is chemically compatible with the silicone coating.
- adhesives of the acrylic type, natural or synthetic gums and / or latex In the context of the present invention, it can in particular be chosen from adhesives of the acrylic type, natural or synthetic gums and / or latex.
- the adhesive coatings deposited on the surface of a wide variety of materials so as to obtain labels, tapes or any other self-adhesive material derive from emulsions called pressure-sensitive adhesive emulsions (PSA). They give the material the ability to adhere to the surface of a support, without requiring activation other than low pressure.
- PSA pressure-sensitive adhesive emulsions
- the monomers used to prepare the PSAs are selected according to their glass transition temperature, Tg, to give the polymers incorporating them the expected behavior in terms of adhesion and viscoelasticity.
- the monomers advantageously have a sufficiently low glass transition temperature, generally between -70 and -10 ° C and preferably is less than -30 C.
- these monomers are chosen from the group consisting of
- (meth) acrylic esters such as the esters of acrylic acid and of methacrylic acid with the hydrogenated or fluorinated CC 12 alkanols, preferably CC 8 , in particular methyl acrylate, ethyl acrylate, propyl acrylate, n-butyl acrylate, isobutyl acrylate, 2-ethylhexyl acrylate, tert-butyl acrylate, hexyl acrylate, heptyl acrylate , octyl acrylate, iso-octyl acrylate, decyl acrylate, dodecyl acrylate, methyl methacrylate, ethyl methacrylate, n-butyl methacrylate, methacrylate d 'isobutyl;
- vinyl nitriles including more particularly those having 3 to 12 carbon atoms, such as in particular acrylonitrile and methacrylonitrile;
- - vinyl esters of carboxylic acid such as vinyl acetate, vinyl versatate, vinyl propionate, - ethylenic unsaturated mono- and dicarboxylic acids such as acrylic acid, methacrylic acid, acid itaconic, maleic acid, fumaric acid and the mono- and di-alkyl esters of the mono- and dicarboxylic acids of the type mentioned with the alkanols preferably having 1 to 8 carbon atoms and their N-substituted derivatives, - the amides of unsaturated carboxylic acids such as acrylamide, methacrylamide, N-methylolacrylamide or methacrylamide, N-alkylacrylamides,
- ethylenic monomers comprising a sulfonic acid group and its alkali or ammonium salts, for example vinylsulfonic acid, vinylbenzenesulfonic acid, alpha-acrylamido methylpropane-sulfonic acid, 2-sulfoethylene-methacrylate, - the unsaturated ethylenic monomers comprising a secondary, tertiary or quaternary amino group, or a heterocyclic group containing nitrogen such as for example vinylpyridines, vinylimidazole, aminoalkyl (meth) acrylates and (meth) acrylamides) aminoalkyl such as dimethylaminoethyl acrylate or dimethylaminoethyl methacrylate, ditertiobutylaminoethyl acrylate or ditertiobutylaminoethyl methacrylate, dimethylaminomethyl-acrylamide or dimethylaminomethyl-methacrylamide,
- - zwitterionic monomers such as, for example, sulfopropyl (dimethyl) aminopropyl acrylate, - ethylenic monomers carrying a sulfate group,
- PSAs are obtained by polymerization mainly of alkyl acrylate monomers which are generally present in an amount of 50 to about 99% and preferably in an amount of 80 to 99% by weight and of copolymerizable polar monomers such as for example acrylic acid, in smaller proportions.
- a third aspect of the present invention relates to the use of type B polyorganosiloxane as described above for stabilizing the release forces of a silicone / adhesive complex as defined above by introduction of such a type B polyorganosiloxane in the curable composition based on type A silicone and photoinitiator according to the invention.
- a release force is generally obtained which is less than 20 g / cm, and more frequently a release force is less than 10 g / cm.
- the force required to peel off the non-stick silicone coating from the adhesive changes at most by a factor of less than 4 and more frequently less than 2, at the end of the 7-day aging test at 70 ° C, representative of a 6-month aging.
- This release force also does not change, and at most changes by a factor of less than 2, regardless of the pressure exerted between the adhesive and the non-stick silicone coating.
- the photoinitiator used is in 18% solution in isopropanol and corresponds to the formula:
- compositions are prepared from a mixture of 100 parts by weight of a mixture of polymers (A) (300 cps) and (B) (1200 cps) to which 2.5 parts by weight of a solution of the photoinitiator are added. 18% isopropanol.
- Non-stick silicone coatings obtained from compositions 1 to 4.
- compositions are light-cured after application on polyester film of the Mylar® type.
- composition is applied using a manual coating machine (Euclide Tool and Machine); the deposit made is of the order of 1 g / m 2 .
- the applied composition is then exposed under UN irradiation. at a running speed of 100 m / min and in the presence of a mercury arc lamp with a power of 120W / cm (company IST)
- the release forces of the various coating / adhesive complexes obtained are measured: (i) initially.
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- Life Sciences & Earth Sciences (AREA)
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Abstract
Description
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01997529A EP1341860A1 (fr) | 2000-11-21 | 2001-11-20 | Compositions a base de silicones fonctionnalisees durcissables sous irradiation et rev tements anti-adherents obtenus a partir de ces compositions |
US10/432,275 US7041710B2 (en) | 2000-11-21 | 2001-11-20 | Compositions based on functionalised radiation-curable silicones and anti-adhesive coatings obtained from said compositions |
AU2002220799A AU2002220799A1 (en) | 2000-11-21 | 2001-11-20 | Compositions based on functionalised radiation-curable silicones and anti-adhesive coatings obtained from said compositions |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR00/15016 | 2000-11-21 | ||
FR0015016A FR2816951B1 (fr) | 2000-11-21 | 2000-11-21 | Compositions a base de silicones fonctionnalisees durcissables sous irradiation et revetements anti-adherents obtenus a partir de ces compositions |
Publications (1)
Publication Number | Publication Date |
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WO2002042388A1 true WO2002042388A1 (fr) | 2002-05-30 |
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Application Number | Title | Priority Date | Filing Date |
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PCT/FR2001/003629 WO2002042388A1 (fr) | 2000-11-21 | 2001-11-20 | Compositions a base de silicones fonctionnalisees durcissables sous irradiation et revêtements anti-adherents obtenus a partir de ces compositions |
Country Status (5)
Country | Link |
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US (1) | US7041710B2 (fr) |
EP (1) | EP1341860A1 (fr) |
AU (1) | AU2002220799A1 (fr) |
FR (1) | FR2816951B1 (fr) |
WO (1) | WO2002042388A1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004083348A2 (fr) * | 2003-03-14 | 2004-09-30 | Becton Dickinson And Company | Systeme de lubrifiant non volatil pour dispositifs medicaux |
JP2005533569A (ja) * | 2002-07-24 | 2005-11-10 | シャーウッド サーヴィシス アクチェンゲゼルシャフト | 電磁線硬化性シリコーン材料を含む医療装置滑剤 |
WO2020239982A1 (fr) * | 2019-05-29 | 2020-12-03 | Elkem Silicones France Sas | Méthode de fabrication additive pour produire un article en élastomère silicone |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6881765B2 (en) * | 2003-03-10 | 2005-04-19 | Toagosei Co., Ltd. | Curable release agent and separator using same |
WO2013167617A2 (fr) | 2012-05-07 | 2013-11-14 | Becton Dickinson France | Revêtement de lubrifiant pour récipient médical |
US9273225B2 (en) | 2012-09-12 | 2016-03-01 | Momentive Performance Materials Inc. | Siloxane organic hybrid materials providing flexibility to epoxy-based coating compositions |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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WO1993008238A1 (fr) * | 1991-10-15 | 1993-04-29 | Minnesota Mining And Manufacturing Company | Compositions pour couches de liberation au silicone, durcissables aux u.v. |
WO1993020163A1 (fr) * | 1992-04-01 | 1993-10-14 | Minnesota Mining And Manufacturing Company | Compositions d'adhesifs decollables a base de silicones |
US5340898A (en) * | 1992-03-23 | 1994-08-23 | Rhone-Poulenc Chimie | Cationically crosslinkable polyorganosiloxanes and antiadhesive coatings produced therefrom |
WO1996005962A1 (fr) * | 1994-08-24 | 1996-02-29 | Avery Dennison Corporation | Compositions d'organopolysiloxane pour couche antiadhesive durcissant sous l'effet de radiations |
FR2731007A1 (fr) * | 1995-02-24 | 1996-08-30 | Rhone Poulenc Chimie | Composition de polyorganosiloxanes reticulables |
EP1010727A2 (fr) * | 1998-12-17 | 2000-06-21 | Rhodia Inc. | Composition antiadhérente |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5594042A (en) * | 1993-05-18 | 1997-01-14 | Dow Corning Corporation | Radiation curable compositions containing vinyl ether functional polyorganosiloxanes |
US5866261A (en) * | 1996-12-20 | 1999-02-02 | Rhodia Inc. | Release composition |
US5973020A (en) * | 1998-01-06 | 1999-10-26 | Rhodia Inc. | Photoinitiator composition including hindered amine stabilizer |
US6187834B1 (en) * | 1999-09-08 | 2001-02-13 | Dow Corning Corporation | Radiation curable silicone compositions |
-
2000
- 2000-11-21 FR FR0015016A patent/FR2816951B1/fr not_active Expired - Fee Related
-
2001
- 2001-11-20 US US10/432,275 patent/US7041710B2/en not_active Expired - Fee Related
- 2001-11-20 EP EP01997529A patent/EP1341860A1/fr not_active Withdrawn
- 2001-11-20 WO PCT/FR2001/003629 patent/WO2002042388A1/fr not_active Application Discontinuation
- 2001-11-20 AU AU2002220799A patent/AU2002220799A1/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1993008238A1 (fr) * | 1991-10-15 | 1993-04-29 | Minnesota Mining And Manufacturing Company | Compositions pour couches de liberation au silicone, durcissables aux u.v. |
US5340898A (en) * | 1992-03-23 | 1994-08-23 | Rhone-Poulenc Chimie | Cationically crosslinkable polyorganosiloxanes and antiadhesive coatings produced therefrom |
WO1993020163A1 (fr) * | 1992-04-01 | 1993-10-14 | Minnesota Mining And Manufacturing Company | Compositions d'adhesifs decollables a base de silicones |
WO1996005962A1 (fr) * | 1994-08-24 | 1996-02-29 | Avery Dennison Corporation | Compositions d'organopolysiloxane pour couche antiadhesive durcissant sous l'effet de radiations |
FR2731007A1 (fr) * | 1995-02-24 | 1996-08-30 | Rhone Poulenc Chimie | Composition de polyorganosiloxanes reticulables |
EP1010727A2 (fr) * | 1998-12-17 | 2000-06-21 | Rhodia Inc. | Composition antiadhérente |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005533569A (ja) * | 2002-07-24 | 2005-11-10 | シャーウッド サーヴィシス アクチェンゲゼルシャフト | 電磁線硬化性シリコーン材料を含む医療装置滑剤 |
WO2004083348A2 (fr) * | 2003-03-14 | 2004-09-30 | Becton Dickinson And Company | Systeme de lubrifiant non volatil pour dispositifs medicaux |
WO2004083348A3 (fr) * | 2003-03-14 | 2004-10-28 | Becton Dickinson Co | Systeme de lubrifiant non volatil pour dispositifs medicaux |
KR101124599B1 (ko) * | 2003-03-14 | 2012-03-20 | 벡톤 디킨슨 앤드 컴퍼니 | 의료장치용 비휘발성 윤활제 시스템 |
WO2020239982A1 (fr) * | 2019-05-29 | 2020-12-03 | Elkem Silicones France Sas | Méthode de fabrication additive pour produire un article en élastomère silicone |
FR3096606A1 (fr) * | 2019-05-29 | 2020-12-04 | Elkem Silicones France Sas | Méthode de fabrication additive pour produire un article en élastomère silicone |
Also Published As
Publication number | Publication date |
---|---|
EP1341860A1 (fr) | 2003-09-10 |
FR2816951B1 (fr) | 2003-01-10 |
US20040110860A1 (en) | 2004-06-10 |
AU2002220799A1 (en) | 2002-06-03 |
FR2816951A1 (fr) | 2002-05-24 |
US7041710B2 (en) | 2006-05-09 |
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