WO2004046268A1 - Star-branched silicone polymers as anti -mist additives for coating applications - Google Patents
Star-branched silicone polymers as anti -mist additives for coating applications Download PDFInfo
- Publication number
- WO2004046268A1 WO2004046268A1 PCT/US2003/035185 US0335185W WO2004046268A1 WO 2004046268 A1 WO2004046268 A1 WO 2004046268A1 US 0335185 W US0335185 W US 0335185W WO 2004046268 A1 WO2004046268 A1 WO 2004046268A1
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- WIPO (PCT)
- Prior art keywords
- monovalent
- composition
- radicals
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Classifications
-
- 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
- C08G77/14—Polysiloxanes containing silicon bound to oxygen-containing groups
-
- 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
- C09D183/14—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 in which at least two but not all the silicon atoms are connected by linkages other than oxygen atoms
-
- 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
- C08G77/06—Preparatory processes
-
- 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
- C08G77/38—Polysiloxanes modified by chemical after-treatment
-
- 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
- C08G77/48—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 in which at least two but not all the silicon atoms are connected by linkages other than oxygen atoms
- C08G77/50—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 in which at least two but not all the silicon atoms are connected by linkages other than oxygen atoms by carbon linkages
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
-
- 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
- C08G2261/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G2261/10—Definition of the polymer structure
- C08G2261/13—Morphological aspects
- C08G2261/131—Morphological aspects dendritic
-
- 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
- C08K5/01—Hydrocarbons
Definitions
- the present invention relates to coating flexible materials or supports such as sheets of paper or other polymeric material, either woven or non- woven, with a silicone composition.
- the present invention also relates to the coating of flexible materials or supports with liquid compositions comprising one or more cross-linkable polyorganosiloxanes wherein such polyorganosiloxanes are cross-linkable by an addition reaction, a condensation reaction, a cationic reaction, or a free-radical reaction.
- the present invention also relates to star branched polyorganosiloxanes (silicone polymers) that reduce misting during the application of the silicone composition (polyorganosiloxane) to the flexible material or support.
- the flexible support may be paper, cardboard, plastic film, metal film and the like. Some exemplary applications are paper for foodstuffs, adhesive labels, adhesive tapes, seals and the like.
- the coating of flexible supports with liquid silicones is typically carried out on coating devices that operate continuously at very high speed.
- These devices usually comprise coating heads composed of several rolls, including in particular a pressure roll and a coating roll that are continuously fed with a silicone composition that may or may not be cross-linkable, by means of a series of rolls that are placed next to one another.
- a strip of flexible support of the desired material to be coated is fed at high speed between the pressure roll and the coating roll to be coated on at least one of its surfaces.
- apparatus to implement a cross linking reaction are positioned downstream of the coating head.
- the apparatus that implements cross linking may be for example an oven or an emitter of radiation, e.g. ultraviolet (UV) radiation or an emitter of a beam of electrons (EB).
- UV ultraviolet
- EB beam of electrons
- High speed coating of flexible supports with silicones has been associated with problems associated with the transfer of the silicone liquid (or fluid) from the coating roll to the flexible support, which moves forward through the coating apparatus.
- One of the particular problems associated with transfer of the silicone liquid from the coating roll to the flexible support is the appearance of a fog, mist or aerosol in the immediate vicinity of the coating head and particularly close to the points of contact between the coating roll and the flexible support being coated.
- the density of this fog, mist or aerosol increases with an increase in the forward speed of the flexible support being coated by the apparatus.
- the first effect of this transfer problem is to reduce the amount of silicone liquid actually transferred to the flexible support.
- a second effect is for the droplets comprising the fog, mist or aerosol to condense onto the newly coated flexible support downstream of the coating rolls creating an orange peel effect.
- This orange peel effect, or coating non-uniformity creates problems with coverage, the mechanical properties of the coating, e.g. ruboff, and adhesion resistance.
- An additional problem caused by non-uniformity in the coating is related to industrial hygiene and the safety of people operating the coating equipment who are working in the vicinity of the coating equipment.
- the present invention provides for a composition to reduce misting during the coating of flexible supports comprising the hydrosilylation reaction product of:
- R 1 is a monovalent radical selected from the group consisting of halogens, hydrogen, Cl to C60 monovalent hydrocarbon radicals, Cl to C60 monovalent polyester radicals, Cl to C60 monovalent nitrile radicals, Cl to C60 monovalent alkyl halide radicals and Cl to C60 monovalent polyether radicals and mixtures thereof;
- M' (CH 2 CHR 1 )R 5 R 6 Si0 1 / 2 ;
- the present invention further provides for a composition to reduce misting during the coating of flexible supports comprising the hydrosilylation reaction product of: a) M' g M a MH b - g D c D' h DH d - h T e T'iTH f .j and
- the subscripts j, k, 1, m, n, o and p are zero or positive subject to the limitation that k + m + o > 0, k + m + o ⁇ b + d + f - g - h - i , p ranges from 0.4 to 4.0, q is non-zero and positive subject to the limitation that:
- T Vi R i Si0 3/2 ;
- R 10 is independently selected from the group of Cl to C60 monovalent hydrocarbon radicals and each R Vl is independently selected from the group of C2 to C60 monovalent alkenyl hydrocarbon radicals.
- star branched siloxane compounds of the present invention are made as the reaction product of:
- a noble metal hydrosilylation catalyst where the subscripts a, b, c , d , e , f , g, h, i, j, k, 1, m, n, o, p, are zero or positive and q is non-zero and positive, for mixtures of compounds the average values of each of the subscripts will most likely be non-integral, for specific compounds the subscripts will be integral, with k + m + o > 0 and k + m + o ⁇ b + d + f - g - h - i , p ranges from 0.4 to 4.0, preferably 0.5 to 3.0, more preferably 0.5 to 2.5 and most preferably 0.5 to 1.5 and all sub-ranges there between and q ranges from 1 to 200, preferably 1 to 100, more preferably 1 to 75 and most preferably 1 to 50 and all sub-ranges there between where the ratio between the hydride containing precursor and the
- R 1 is a monovalent radical selected from the group consisting of halogens, hydrogen, Cl to C60 monovalent hydrocarbon radicals, Cl to C60 monovalent polyester radicals, Cl to C60 monovalent nitrile radicals, Cl to C60 monovalent alkyl halide radicals and Cl to C60 monovalent polyether radicals and mixtures thereof; with
- M R 2 R 3 R SiO ⁇ / 2 ;
- D H HR Q Si0 2 ;
- D v ⁇ RViRio S i ⁇ 2/2 ;
- T H HSi0 3 / 2 ;
- T Vi R i Si0 3/2 ;
- Q Si0 4/2 ;
- M' (CH 2 CHR i )R 5 R 6 SiO ⁇ / 2 ;
- T' (CH 2 CHR i )Si0 3/2 with each R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , and R 11 independently selected from the group of Cl to C60 monovalent hydrocarbon radicals and each R Vi independently selected from the group of C2 to C60 monovalent alkenyl hydrocarbon radicals; it should be noted that the compositions of the present invention require b + d + f - g - h - i > 0.
- Cl to C60 is a carbon number range ranging from 1 to 60 and includes both aliphatic and aromatic radicals, e.g. styryl, this range also includes the following specific sub-ranges, 15 to 60, 30 to 60, 45 to 60, 1 to 15, 1 to 30, 1 to 45, 10 to 30, 10 to 40, 10 to 50 and all sub-ranges therebetween.
- star branched silicone compounds of the present invention are described as the reaction product of the following two compounds:
- compositions of the present invention may be made by neat reactions or by reactions where the reactants are diluted by solvent. Because of the long chain nature of the substituents in these materials, neat reactions, i.e. reactions conducted in the absence of any non-participating solvent, will tend to produce products that conform to the molecular descriptions herein but possessing a more entangled macro-structure. If less entangled macro-structures of these compounds are desired, the preparative reactions should be conducted in suitable solvent media, e.g. cyclic siloxanes, inert hydrocarbon solvents and the like.
- suitable solvent media e.g. cyclic siloxanes, inert hydrocarbon solvents and the like.
- noble metal catalysts for this hydrosilylation reaction are known and such catalysts may be used for the reaction in the present instance.
- the preferred catalysts are catalysts that are soluble in the reaction mixture.
- noble metal Applicants define Ru, Rh, Pd, Os, Ir, and Pt as noble metals and also include Ni in the definition because of its known hydrogenation activity.
- the catalyst is a platinum compound and the platinum compound can be selected from those having the formula (PtC ⁇ Olefin) and H(PtC-3 ⁇ lefin) as described in U.S. patent number 3,159,601, hereby incorporated by reference.
- the olefin shown in the previous two formulas can be almost any type of olefin but is preferably an alkenylene having from 2 to 8 carbon atoms, a cycloalkenylene have from 5 to 7 carbon atoms or styrene.
- Specific olefins utilizable in the above formulas are ethylene, propylene, the various isomers of butylene, octylene, cyclopentene, cyclohexene, cycloheptene, and the like.
- a further platinum containing material usable in the compositions of the present invention is the cyclopropane complex of platinum chloride described in U.S. patent number 3,159,662 hereby incorporated by reference.
- platinum containing material can be a complex formed from chloroplatinic acid with up to 2 moles per gram of platinum of a member selected from the class consisting of alcohols, ethers, aldehydes and mixtures of the above as described in U.S. patent number 3,220,972 hereby incorporated by reference.
- Table 1 shows examples of the synthesis of the structures of the anti mist additives based on the path described above.
- the SiH/SiVinyl is the ratio of moles of silyl hydrides available for reaction to the moles of silyl vinyl available for reaction. In the compounds shown, the SiH/SiVinyl ratio runs from 0.2 to 2.75, but a larger usable range spans from 0.22 to 4.5.
- Table 2 shows the anti misting behavior of the invention.
- the measurements were made during runs on 2.5 mil SC Rhi-Liner 12 paper using a pilot coater with a line speed of 2000 ft/minute.
- the paper was coated with a standard silicone paper release formulation containing ⁇ 2% anti mist additive with a target of 0.6 to 0.9 pounds per ream.
- the mist was measured using a DustTrack Aerosol Monitor.
- the intake port was positioned in the highest observed misting area thus providing the highest expected values. The position does not reflect normal environmental testing nor does it guarantee specific values under all operating conditions.
- the measurement is in mg of mist material per cubic meter of air, the lower values being more desirable as they represent less misting.
- the anti misting materials generated for this invention reduce the amount of generated mist at 2000 ft/min compared to the control formulation containing no anti mist additive. Quite surprisingly the mist is often reduced by a factor of greater than ten, often by about 100.
- the word "comprises” and its grammatical variants logically also subtend and include phrases of varying and differing extent such as for example, but not limited thereto, “consisting essentially of” and “consisting of.” Where necessary, ranges have been supplied, those ranges are inclusive of all sub-ranges there between. It is to be expected that variations in these ranges will suggest themselves to a practitioner having ordinary skill in the art and where not already dedicated to the public, those variations should where possible be construed to be covered by the appended claims.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Polymers & Plastics (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Silicon Polymers (AREA)
- Paints Or Removers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Polyethers (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR0315709-1A BR0315709A (en) | 2002-11-15 | 2003-11-05 | Star-branched silicone polymers as mist additives for roofing applications |
AU2003290618A AU2003290618A1 (en) | 2002-11-15 | 2003-11-05 | Star-branched silicone polymers as anti -mist additives for coating applications |
EP03783151.8A EP1563023B1 (en) | 2002-11-15 | 2003-11-05 | Star-branched silicone polymers as anti -mist additives for coating applications |
JP2004553518A JP2006508206A (en) | 2002-11-15 | 2003-11-05 | Star-branched silicone polymers as mist inhibitors for coatings |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/295,328 US6774201B2 (en) | 2002-11-15 | 2002-11-15 | Star-branched silicone polymers as anti-mist additives for coating applications |
US10/295,328 | 2002-11-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004046268A1 true WO2004046268A1 (en) | 2004-06-03 |
Family
ID=32297168
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2003/035185 WO2004046268A1 (en) | 2002-11-15 | 2003-11-05 | Star-branched silicone polymers as anti -mist additives for coating applications |
Country Status (9)
Country | Link |
---|---|
US (1) | US6774201B2 (en) |
EP (1) | EP1563023B1 (en) |
JP (1) | JP2006508206A (en) |
KR (1) | KR20050075421A (en) |
CN (1) | CN100363427C (en) |
AU (1) | AU2003290618A1 (en) |
BR (1) | BR0315709A (en) |
RU (1) | RU2005118412A (en) |
WO (1) | WO2004046268A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006062714A3 (en) * | 2004-12-03 | 2006-09-08 | Gen Electric | Star-branched silicone polymers as anti-mist additives for coating applications |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7135512B2 (en) * | 2002-11-15 | 2006-11-14 | General Electric Company | Star-branched silicone polymers as anti-mist additives for coating applications |
EP2027190B1 (en) | 2006-06-09 | 2017-06-21 | Dow Corning Corporation | Process for the preparation of solid solventless mq resins |
US7560167B2 (en) * | 2006-09-01 | 2009-07-14 | Momentive Performance Materials Inc. | Composition containing anti-misting component |
US7649071B2 (en) * | 2006-09-01 | 2010-01-19 | Momentive Performance Materials Inc. | Branched polysiloxane composition |
US20080281055A1 (en) * | 2007-05-09 | 2008-11-13 | Momentive Performance Materials Inc. | Branched polysiloxane of reduced molecular weight and viscosity |
US20080276836A1 (en) * | 2007-05-09 | 2008-11-13 | Momentive Performance Materials Inc. | Composition containing anti-misting component of reduced molecular weight and viscosity |
US20090171058A1 (en) * | 2007-12-31 | 2009-07-02 | John Kilgour | Low temperature platinum-vinylpolysiloxane hydrosilylation catalyst |
DE102009003275A1 (en) | 2009-05-20 | 2010-11-25 | Evonik Goldschmidt Gmbh | Branched polydimethylsiloxane-polyoxyalkylene copolymers, a process for their preparation and their use as anti-fogging additive in UV-curing silicones |
US9834699B2 (en) | 2012-06-19 | 2017-12-05 | Watever Inc. | Coating composition |
KR102156536B1 (en) | 2014-06-23 | 2020-09-16 | 신에쓰 가가꾸 고교 가부시끼가이샤 | Crosslinked organopolysiloxane and method for producing same, mist suppressant, and solvent-free silicone composition for release paper |
JP6330736B2 (en) | 2015-06-11 | 2018-05-30 | 信越化学工業株式会社 | Organopolysiloxane composition and method for producing the same, mist inhibitor, and solvent-free release paper or release film silicone composition |
US11390775B2 (en) | 2019-12-02 | 2022-07-19 | Dow Silicones Corporation | Composition for preparing a release coating |
EP3867301B1 (en) | 2019-12-02 | 2022-11-16 | Dow Silicones Corporation | Composition for preparing a release coating |
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-
2002
- 2002-11-15 US US10/295,328 patent/US6774201B2/en not_active Expired - Lifetime
-
2003
- 2003-11-05 BR BR0315709-1A patent/BR0315709A/en not_active IP Right Cessation
- 2003-11-05 RU RU2005118412/04A patent/RU2005118412A/en not_active Application Discontinuation
- 2003-11-05 WO PCT/US2003/035185 patent/WO2004046268A1/en active Application Filing
- 2003-11-05 KR KR1020057008779A patent/KR20050075421A/en not_active Application Discontinuation
- 2003-11-05 CN CNB2003801088490A patent/CN100363427C/en not_active Expired - Fee Related
- 2003-11-05 AU AU2003290618A patent/AU2003290618A1/en not_active Abandoned
- 2003-11-05 JP JP2004553518A patent/JP2006508206A/en active Pending
- 2003-11-05 EP EP03783151.8A patent/EP1563023B1/en not_active Expired - Lifetime
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006062714A3 (en) * | 2004-12-03 | 2006-09-08 | Gen Electric | Star-branched silicone polymers as anti-mist additives for coating applications |
US7517929B2 (en) | 2004-12-03 | 2009-04-14 | Momentive Performance Materials Inc. | Star-branched silicone polymers as anti-mist additives for coating applications |
Also Published As
Publication number | Publication date |
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CN1738879A (en) | 2006-02-22 |
US20040097680A1 (en) | 2004-05-20 |
JP2006508206A (en) | 2006-03-09 |
CN100363427C (en) | 2008-01-23 |
EP1563023A1 (en) | 2005-08-17 |
AU2003290618A1 (en) | 2004-06-15 |
EP1563023B1 (en) | 2018-08-08 |
KR20050075421A (en) | 2005-07-20 |
RU2005118412A (en) | 2006-01-20 |
US6774201B2 (en) | 2004-08-10 |
BR0315709A (en) | 2005-09-06 |
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