Classifications

• • 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
• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
  • A47L13/00—Implements for cleaning floors, carpets, furniture, walls, or wall coverings
  • A47L13/10—Scrubbing; Scouring; Cleaning; Polishing
  • A47L13/16—Cloths; Pads; Sponges
  • A47L13/17—Cloths; Pads; Sponges containing cleaning agents
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
  • C11D17/04—Detergent materials or soaps characterised by their shape or physical properties combined with or containing other objects
  • C11D17/049—Cleaning or scouring pads; Wipes
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/16—Organic compounds
  • C11D3/37—Polymers
  • C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • C11D3/373—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicones
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
  • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
  • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
  • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
• • 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
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/23907—Pile or nap type surface or component
  • Y10T428/23986—With coating, impregnation, or bond
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/31504—Composite [nonstructural laminate]
  • Y10T428/31652—Of asbestos
  • Y10T428/31663—As siloxane, silicone or silane
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
  • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
  • Y10T442/273—Coating or impregnation provides wear or abrasion resistance

Definitions

• a polish cloth containing a partially cured methyl or ethylmethylpolysiloxane which possesses the combination of good polishing activity and resistance to repeated laundering For example, cotton flannelette is impregnated with 33% by weight of a methylpolysiloxane fluid cured to such an extent that from 85 to 95% by weight of the fluid is extracted from the fabric by immersing the fabric in benzene at room temperature for two days.
• This application relates to an article of manufacture comprising a fabric impregnated with an organopolysiloxane as hereinafter defined.
• organopolysiloxanes especially the methylpolysiloxanes
• polishing agents have long been established. These materials when used alone or in conjunction with waxes, impart a high degree of gloss to most surfaces such as furniture, automobiles, glass, plastie, and ceramic surfaces. Fabric impregnated with methylpolysiloxanes, either with or without wax have been employed as polish cloths.
• Applicants have found that the above objective can be accomplished by employing a fabric which is impregnated with a partially cured organopolysiloxane fluid.
• the state of cure is critical since if the cure proceeds too far one will obtain an impregnated fabric from which the siloxane is not removed by washing, but which will no longer serve as a polishing cloth.
• the state of cure is not sufficient substantially all of the siloxane is removed after one or two washings, and the cloth is useless for polishing because there is no more fluid left therein to exude onto the surface being polished.
• the article of this invention comprises a fabric which can be washed repeatedly without losing its ability to polish, said fabric being impregnated with an organopolysiloxane fluid which has been cured to such an extent that from 85 to 95 of said siloxane is extracted from the fabric by immersing the fabric in benzene at room temperature for two days.
• the siloxane should be either a methylpolysiloxane or an ethylmethylpolysiloxane in which there is on the average no more than 3,433,667 Patented Mar. 18, 1969 about one ethyl group per silicon atom. It has been found that if the polysiloxane is cured so that less than of the siloxane is extracted under the above conditions, the impregnated fabric will no longer function as a polishing cloth. On the other hand, if more than 95% of the siloxane is extracted, under said conditions, the polishing nature of the fabric is lost when it is washed. Best results are obtained when the cure is such that from to 94% of the siloxane is extracted.
• the siloxane can be cured on the fabric in any conventional manner.
• the siloxane can be cured with any of the known siloxane catalysts such as peroxides, amine salts, metal salts of carboxylic acids, quaternary ammonium hydroxides or alkyl titanates.
• peroxide catalyst cure by free radical mechanisms involving the hydrocarbon substituents on the silicon atoms.
• peroxides are employed completely condensed (i.e. hydroxyl-free) siloxanes can be applied to the fabric and thereafter cured to the desired extent by heating to a temperature above the decomposition temperature of the peroxide.
• Many siloxane catalysts cure by means of SiOH condensation.
• the siloxane should contain silicon-bonded hydroxyl groups.
• cross-linking agents such as siloxanes having the SiH groups or alkyl silicates in conjunction with the silanol condensation catalyst to facilitate cure.
• cross-linkers are employed care must be taken that the cure does not proceed too far.
• a third method of curing the siloxane involves the reaction of SiH groups with alkenyl groups on the silicon in presence of platinum catalyst.
• the balance of the SiH groups and vinyl groups should be such that an over-cure is not obtained.
• the preferred method of preparing the articles of this invention involves using a mixture of from 5 to 13% by weight of alkylsiloxane fluid containing Si-OH groups and from 87 to 95% by weight of siloxane fluid which is substantially free of SiOH groups.
• This mixture is allowed to cure on. the fabric employing a tin salt of a carboxylic acid such as stannous octoate or dibutyl tin dilaurate.
• the curing can be carried out at room temperature or at elevated temperatures.
• the hydroxylated siloxane fluid contain some trifunctional silicon atoms so as to more easily introduce branching into the system.
• this hydroxyl fluid should contain from .5 to 5 mol percent monoorgano-substituted silicon atoms.
• the rat-i0 of organic groups to silicon atoms in the preferred fluid ranges from 1.95 to 1.995.
• the fabric used in this invention can be any fabric suitable for polishing such as tissue paper, flannel or other soft cloths.
• the amount of organosiloxane in the fabric is not critical although, in general, "best results are obtained when the fabric is impregnated from 25 to 50% by weight of the siloxane based on total weight of siloxane and fabric.
• the viscosity of the siloxane fluid which is free of silanol groups should be below 1500 cs. and preferably between 200 and about 800 cs. at 25 C. This viscosity range gives the best gloss and depth of color to the polishing surface.
• this fluid can be a blend of two or more fluids, some of which may have viscosities outside the preferred range, so long as the blend itself falls within the range.
• the polishing test consisted of wiping the fabric on oak and maple test panels which had lacquer, varnish and oil finishes. After the fabric was wiped across the panels, the gloss was observed visibly and also measured with a gloss meter. The gloss was also checked after 24 hours in order to test the lasting quality of the finish. In addition, each cloth was rated subjectively on ease of polishing.
• Example 1 The following mixtures were applied to cotton flannelete in amount so that the cloth contained 33 /s% by weight organosiloxane. In each case the fabric was allowed to age 4 days and then heated 4 min. at 230 F.
• Each formulation contained 0.45% of stannous octoate catalysts.
• Example 3 Equivalent results are obtained when a 350 cs. ethyldimethylsiloxy endblocked ethylmethylpolysiloxane fluid is substituted for fluid b) in mixture (1) of Example 1.
• Example 4 Equivalent results are obtained when a hydroxylated ethylmethylsiloxane fluid of about 40 cs. at 25 C. which contained about 2% copolymerized monomethylsiloxane is substituted for fluid (a) in mixture (1) of Example 1.
• a polish cloth which can be washed repeatedly without losing its ability to polish comprising a fabric impregnated with a partially cured fluid mixture consisting essentially of (1) from 5 to 13% by weight of hydroxylated methylsiloxane fluid and (2) from 87 to 95% by weight of dimethylpolysiloxane fluid which is substantially free of silicon-bonded hydroxyl groups, having a viscosity of from 200 to 800 cs. at 25 C., said fluid mixture being cured to such an extent that from to 95% by weight of total siloxane is extracted from the fabric by immersing same in benzene at room temperature for two days.
• a polish cloth which can be washed repeatedly without losing its ability to polish comprising a fabric impregnated with a partially cured fluid mixture consisting essentially of (1) from 5 to 13% by weight of hydroxylated methylsiloxane fluid and (2) from 87 to 95% by weight of dimethylpolysiloxane fluid which is substantially free of silicon-bonded hydroxyl groups, having a viscosity of from 200 to 800 cs. at 25 C., said fluid mixture being cured to such an extent that from 90 to 94% by weight of total siloxane is extracted from the fabric by immersing same in benzene at room temperature for two days.

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• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Organic Chemistry (AREA)
• Engineering & Computer Science (AREA)
• Life Sciences & Earth Sciences (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Wood Science & Technology (AREA)
• Health & Medical Sciences (AREA)
• Medicinal Chemistry (AREA)
• Polymers & Plastics (AREA)
• Textile Engineering (AREA)
• Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

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Publications (1)

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ID=23328486

Family Applications (1)

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Cited By (3)

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Citations (14)

• 1964
  • 1964-01-22 US US339325A patent/US3433667A/en not_active Expired - Lifetime
  • 1964-10-23 CH CH1376464A patent/CH432741A/de unknown
• 1965
  • 1965-01-11 GB GB1175/65A patent/GB1020672A/en not_active Expired
  • 1965-01-19 DE DE19651503769 patent/DE1503769A1/de active Pending
  • 1965-01-21 AT AT51665A patent/AT258851B/de active
  • 1965-01-21 BE BE658632D patent/BE658632A/xx unknown
  • 1965-01-22 NL NL6500856A patent/NL6500856A/xx unknown

Patent Citations (14)

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