KR860003295A - Manufacturing Method of Transparent Membrane Structure - Google Patents

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Description

Manufacturing Method of Transparent Membrane Structure

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Claims (75)

100 parts of the vinyl-chain stopped liquid polysiloxane of formula (5); (R ² ) ₃ is a resinous organopolysiloxane copolymer consisting of _0.5 units of SiO and ₂ units of SiO ₂ , wherein R ² is selected from the group consisting of vinyl radicals, and monovalent hydrocarbon radicals free of aliphatic unsaturation, and SiO ₂ The ratio of (R ² ) ₃ SiO _0.5 units to units is from about 0.5: 1 to about 1: 1 and from about 1.5 to about 10 mole percent of the silicon atoms contain silicon-bonded vinyl groups], and (R ² ) A resinous organopolysiloxane copolymer consisting of _0.5 SiO ₃ units, (R 3) ₃ SiO units and SiO ₂ units, wherein R ³ is a group consisting of vinyl radicals and monovalent hydrocarbon radicals free of aliphatic unsaturation. Selected from about 1.5 to about 10 mole percent of the silicon atoms contain silicon-bonded vinyl groups, and the ratio of (R ³ ) ₃ SiO _0.5 units to SiO ₂ units is from about 0.5: 1 to about 1: 1: and, (R3) ₃ ratio of SiO units to SiO ₂ units is 0.1: 1 how party Be selected from the group consisting of can wiil] resinous organo poly 100 to 200 parts of the siloxane copolymer; Platinum catalysts; And a liquid organohydrogenpolysiloxane of the following general formula (6) sufficient to provide about 0.5 to 1.0 silicon-bonded hydrogen atoms per silicon-bonded vinyl group. Wherein R and R ¹ are monovalent hydrocarbon radicals without aliphatic unsaturation, at least 50 mole percent of the R ¹ groups are methyl and n is a value sufficient to provide a viscosity of about 2,000.000 centipoise at 25 ° C .; a is about 1.0 to about 2.1, b is about 0.1 to 1.0 and a + b is about 2.0 to about 2.7; In formula (6) there are at least two silicon-bonded hydrogen atoms per molecule. The composition of claim 1, further comprising a fine inorganic filler. 2. The composition of claim 1, wherein all of the radicals represented by R and R ¹ in the stopped polysiloxane, which are vinyl bodies, are selected from the group consisting of methyl and phenyl radicals. The composition according to claim 1, wherein all radicals represented by R and R ¹ in the stopped polyoxane, which is a vinyl body, are methyl radicals. The composition of claim 1, wherein the viscosity of the stopped polysiloxane, which is vinyl, ranges from about 30,000 to 1,000,000 at 25 ° C. The composition of claim 1 wherein all radicals represented by R ² , other than vinyl radicals in the resinous organopolysiloxane copolymer, are selected from the group consisting of methyl and phenyl radicals. The composition according to claim 1, wherein all radicals represented by R ² other than vinyl radicals in the resinous organopolysiloxane copolymer are methyl radicals. The composition of claim 1, wherein about 1 to about 2 parts by weight of the resinous organopolysiloxane copolymer per weight part of the stopped polysiloxane which is a vinyl body is present. The composition of claim 2, wherein the fine inorganic filler is selected from the group consisting of crushed quartz, titanium dioxide, iron oxide, chromium oxide, glass fibers, calcium carbonate, carbon black and talc. The composition of claim 1, wherein the catalyst is present in an amount sufficient to provide about 10 ⁻³ to 10 ⁻⁶ g of platinum per mole of silicon-bonded vinyl group in the composition. The dimethylpolysiloxane of claim 1, wherein the organohydrogenpolysiloxane is 1,3,5,7-tetramethylcyclotetrasiloxane, dimethylhydrogen, and dimethylsiloxane units, methyl hydrogensiloxane units, and A composition selected from the group consisting of polysiloxanes having 2 to 10 silicon atoms with trimethylsiloxane units, and low viscosity fluids consisting of dimethylhydrogensiloxane units and SiO ₂ . 100 parts of the vinyl-chain stopped liquid polysiloxane of formula (5); Dendritic organopoly consisting of (R ² ) ₃ SiO _0.5 units and SiO ₂ units, but consisting of (R ³ ) ₃ SiO _0.5 units, (R ₃ ) ₂ SiO units and SiO ₂ units, or a mixture thereof Siloxane copolymers wherein R ² and R ³ are selected from the group consisting of vinyl radicals and monovalent hydrocarbon radicals free of aliphatic unsaturation, wherein from about 1.5 to about 10 mole percent of the silicon atoms are silicon-bonded vinyl groups Wherein the ratio of one functional unit to four functional units is about 0.5 to about 1: 1, and the ratio of bifunctional units to four functional units ranges from 0.1 to 1]; Platinum catalysts; And a liquid organohydrogenpolysiloxane of the following formula (6) sufficient to provide about 0.5 to about 1.0 silicon-bonded hydrogen atoms per silicon-bonded vinyl group: Method of preparing the composition. Wherein R and R ¹ are monovalent hydrocarbon radicals without aliphatic unsaturation, at least 50 mole percent of the R ¹ groups are methyl and n is a value sufficient to provide a viscosity of about 2,000.000 centipoise at 25 ° C .; a is from about 1.0 to about 2.1, b is from about 0.1 to about 1.0, a + b is from about 2.0 to about 2.7; in formula (6) there are at least two silicon-bonded hydrogen atoms per molecule. 13. The method of claim 12, further comprising mixing fine inorganic fillers in the composition. 13. The process of claim 12 wherein all of the radicals represented by R and R ¹ in the vinyl chain terminated polysiloxane are selected from the group consisting of methyl and phenyl radicals. 13. The process of claim 12, wherein all of the radicals represented by R and R ¹ in the vinyl stopped polysiloxane are methyl radicals. The method of claim 12, wherein the viscosity of the vinyl chain terminated polysiloxane is in the range of about 30,000 to 1,000,000 at 25 ° C. 13. 13. The method of claim 12, wherein all radicals in the resinous organopolysiloxane copolymer, represented by R ² and R ³ but not vinyl radicals, are selected from the group consisting of methyl and phenyl radicals. 13. The process of claim 12 wherein all radicals represented by R ² and R ³ in the resinous organopolysiloxane copolymer that are not vinyl radicals are methyl radicals. 13. The method of claim 12, wherein there are about 100 to about 200 parts by weight of resinous organopolysiloxane per 100 parts by weight of the suspended polysiloxane which is a vinyl body. The method of claim 13, wherein the fine inorganic filler is selected from the group consisting of crushed quartz, titanium dioxide, iron oxide, chromium oxide, glass fibers, calcium carbonate, carbon black and talc. The method of claim 12, wherein the catalyst is present in an amount sufficient to provide about 10 ⁻³ to 10 ⁻⁶ g of platinum per mole of silicon-bonded vinyl group in the composition. 13. The dimethylpolysiloxane of claim 12, wherein the organohydrogenpolysiloxane is 1,3.5.7-tetramethylcyclotetrasiloxane, dimethylhydrogen, and dimethylsiloxane units, methylhydrogensiloxane units, and trimethylsil. Wherein the polysiloxanes and dimethylhydrogensiloxanes having 2 to 10 silicon atoms with oxane units, the unit and the SiO ₂ units are selected from the group consisting of fluids in a ratio of about 2: 1. 100 parts of the vinyl-chain stopped liquid polysiloxane of formula (5); Dendritic organopoly consisting of (R ² ) ₃ SiO _0.5 units and SiO ₂ units, or (R ³ ) ₃ SiO _0.5 units, (R ³ ) ₃ SiO units and SiO ₂ units, or a mixture thereof. Siloxane copolymers wherein R ² and R ³ are selected from the group consisting of vinyl radicals and monovalent hydrocarbon radicals free from aliphatic unsaturation, wherein from about 1.5 to about 10 mole percent of the silicon atoms represent silicon-bonded vinyl groups. Containing, wherein the ratio of monofunctional units to tetrafunctional units is about 0.5 to about 1: 1, and the ratio of bifunctional units to tetrafunctional units is in the range of 0.1: 1; Platinum catalysts; And then mixing the liquid organohydrogenpolysiloxane of formula (6) sufficient to provide about 0.5 to about 1.0 silicon-bonded hydrogen atoms per silicon-bonded vinyl group, and applying the resulting mixture to a suitable substrate. To harden the mixture on the substrate, thereby producing a dustproof substrate. Wherein R and R ¹ are monovalent hydrocarbon radicals without aliphatic unsaturation and at least 50 mole percent of the R ¹ groups are methyl; n is a value sufficient to give a viscosity of about 2,000.000 centipoise at 25 ° C; a is from about 1.0 to about 2.1, b is from about 0.1 to 1.0 and a + b is from about 2.0 to about 2.7; in formula (6) there are at least two silicon-bonded hydrogen atoms per molecule. The method of claim 23, wherein the fine inorganic filler is further mixed into the composition. 24. The process according to claim 23, wherein all of the radicals represented by R and R ¹ in the stopped polysiloxane, which are vinyl bodies, are selected from the group consisting of methyl and phenyl radicals. The method according to claim 23, wherein all radicals represented by R and R ¹ in the stopped polysiloxane which are vinyl bodies are methyl radicals. 24. The process of claim 23 wherein the viscosity of the stopped polysiloxane in vinyl ranges from about 30,000 to 1,000,000 at 25 ° C. 24. The process of claim 23, wherein all radicals in the resinous organopolysiloxane copolymer, represented by R ² and R ³ but not vinyl radicals, are selected from the group consisting of methyl and phenyl radicals. 24. The process of claim 23 wherein all radicals represented by R ² and R ³ in the resinous organo polysiloxane copolymer that are not vinyl radicals are methyl radicals. 24. The method of claim 23, wherein there are about 100 to about 200 parts by weight of the resinous organo polysiloxane copolymer per 100 parts by weight of the suspended polysiloxane which is a vinyl body. The method of claim 24, wherein the fine inorganic filler is selected from the group consisting of crushed quartz, titanium dioxide, iron oxide, chromium oxide, glass fibers, calcium carbonate, carbon black and talc. The method of claim 23, wherein the catalyst is present in an amount sufficient to provide about 10 ⁻³ to 10 ⁻⁶ g of platinum per mole of silicon-bonded vinyl group in the composition. 24. The process of claim 23 wherein the organohydrogen polysiloxane is selected from the group consisting of 1,3,5,7-tetramethylcyclotetrasiloxane, dimethyl hydrogen chain terminated dimethylpolysiloxane, and dimethylsiloxane units, methylhydrogensiloxane units and A polysiloxane of 2 to 10 silicon atoms with trimethylsiloxane units, and a dimethyl hydrogen siloxane, a low viscosity fluid in which the unit and the sio ₂ unit are in a ratio of about 2: 1. (a) a fabric base, (b) a coating composition base, and (c) 100 parts of a vinyl-chain suspended liquid polysiloxane of formula (5); Dendritic organopoly consisting of (R ² ) ₃ sio _0.5 units and sio ₂ units, (R ³ ) ₃ sio _0.5 units, (R ³ ) ₃ sio units and sio ₂ units, or a mixture thereof. Siloxane copolymers wherein R ² and R ³ are selected from the group consisting of vinyl radicals and monovalent hydrocarbon radicals free from aliphatic unsaturation, wherein from about 1.5 to about 10 mole percent of the silicon atoms represent silicon-bonded vinyl groups. Containing, wherein the ratio of monofunctional units to tetrafunctional units is about 0.5 to about 1: 1, and the ratio of bifunctional units to tetrafunctional units is in the range of 0.1: 1; Platinum catalysts; And a dustproof silicone coating composition consisting of a liquid organohydrogenpolysiloxane of the following formula (6) sufficient to provide about 0.5 to about 1.0 silicon-bonded hydrogen atoms per group of silicon-bonded vinyls: . Wherein R and R ¹ are monovalent hydrocarbon radicals without aliphatic unsaturation, at least 50 mole percent of the R ¹ groups are methyl and n is a value sufficient to provide a viscosity of about 2,000.000 centipoise at 25 ° C .; a is about 1.0 to about 2.1, b is about 0.1 to about 1.0, and a + b is about 2.0 to about 2.7; In formula (6) there are at least two silicon-bonded hydrogen atoms per molecule. 35. The structure of claim 34, wherein the fabric substrate is made of a material selected from the group consisting of cotton, polyester, nylon, and glass fabrics. 35. The structure of claim 34, wherein the fabric substrate is a glass fabric. 35. The structure of claim 34, wherein the woven substrate is a woven fabric. 35. The structure of claim 34, wherein the textile substrate is a knitted fabric. 35. The structure of claim 34, wherein the woven substrate is a nonwoven. 35. The structure of claim 34, wherein the fabric substrate is selected from the group consisting of laminated reinforced plastics. 35. The structure of claim 34, wherein the fabric substrate is a spun glass fabric. The structure of claim 34, wherein the coating composition substrate is transparent or translucent. 35. The structure of claim 34, wherein the coating composition substrate is a silicone composition. 35. The structure of claim 34, wherein the dustproof silicone coating composition further contains a fine inorganic filler. The structure of claim 34, wherein all of the radicals represented by R and R ¹ in the stationary polysiloxane in the vinyl body of component (c) are selected from the group consisting of methyl and phenyl radicals. 35. The structure of claim 34, wherein all of the radicals represented by R and R ¹ in the stopped polysiloxane, which is the vinyl in component (c), are methyl. 35. The structure of claim 34, wherein the viscosity of the vinyl chain terminated polysiloxane in component (c) is in the range of about 30,000 to 1,000,000 centipoise at 25 ° C. The structure of claim 34, wherein in the resinous organo polysiloxane copolymer of component (c) all radicals represented by R ² and R ³ that are not vinyl radicals are selected from the group consisting of methyl and phenyl radicals. The structure of claim 34, wherein in the resinous organo polysiloxane copolymer in component (c), all radicals represented by R ² and R ³ that are not vinyl radicals are methyl radicals. 35. The structure of claim 34, wherein component (c) is present in about 100 to about 200 parts by weight of the resinous organopolysiloxane copolymer per 100 parts by weight of the suspended polysiloxane, which is vinyl. 45. The structure of Claim 44 wherein the fine inorganic filler is selected from the group consisting of crushed quartz, titanium dioxide, iron oxide, chromium oxide, glass fibers, calcium carbonate, carbon black and talc. The structure of claim 34, wherein the catalyst in component (c) is present in an amount sufficient to provide about 10 ⁻³ to 10 ⁻⁶ g atoms of platinum per mole of silicon-bonded vinyl group in the composition. 35. The dimethylpolysiloxane of claim 34, wherein the organohydrogenpolysiloxane in component (c) is 1,3,5,7-tetramethylcyclotetrasiloxane, dimethylhydrogen, and dimethylsiloxane units, methyl Structures selected from the group consisting of low viscosity fluids having 2 to 10 polysiloxanes and dimethyl hydrogen siloxane units having silicon siloxane units and trimethyl siloxane units and sio ₂ units having a ratio of about 2: 1. . 35. The structure of claim 34, wherein the dustproof silicone coating composition has a thickness of about 50 mils or less. 35. The structure of claim 34 wherein the dustproof silicone coating composition has a thickness of 0.1 to 20 mils. 100 parts of a vinyl-chain suspended liquid polysiloxane of the general formula (5) on at least one side of the fabric substrate to which the coating composition substrate is applied, the coating composition substrate being applied to at least one side of the textile substrate; Dendritic organopoly consisting of (R ² ) ₃ sio _0.5 units and sio ₂ units, (R ³ ) ₃ sio _0.5 units, (R ³ ) ₃ sio units and sio ₂ units, or a mixture thereof Siloxane copolymers wherein R ² and R ³ are selected from the group consisting of vinyl radicals and monovalent hydrocarbon radicals free of aliphatic unsaturation, wherein from about 1.5 to about 10 mole percent of the silicon atoms represent silicon-bonded vinyl groups Containing, wherein the ratio of monofunctional units to tetrafunctional units is about 0.5: 1 to about 1: 1, and the ratio of bifunctional units to tetrafunctional units is in the range of 0.1: 1;] 100 to 200 parts; Platinum catalysts; And a dustproof silicone coating composition consisting of the liquid organohydrogenpolysiloxane of the following formula (6) sufficient to provide about 0.5 to about 1.0 silicon-bonded hydrogen atoms per silicon-bonded vinyl group, A method of making a roofing membrane structure, characterized in that the dustproof silicone coating composition is cured on a coating composition substrate. Wherein R and R ¹ are monovalent hydrocarbon radicals without aliphatic unsaturation, at least 50 mole percent of the R ¹ groups are methyl, and n is a value sufficient to provide a viscosity of about 2,000,000 centipoise at 25 ° C .; a is about 1.0 to about 2.1, b is about 0.1 to 1.0 and a + b is about 2.0 to about 2.7; In formula (6) there are at least two silicon-bonded hydrogen atoms per molecule. 59. The method of claim 56, wherein the textile substrate is made of a material selected from the group consisting of cotton, polyester, nylon, and glass fabrics. 59. The method of claim 56, wherein the fabric substrate is a glass fabric. The method of claim 56, wherein the fabric substrate is a woven fabric. 59. The method of claim 56, wherein the textile substrate is a knitted fabric. 57. The method of claim 56, wherein the textile substrate is a nonwoven. 59. The method of claim 56, wherein the fabric substrate is selected from the group consisting of laminated reinforced plastics. 57. The method of claim 56, wherein the textile substrate is a spun glass fabric. The method of claim 56, wherein the coating composition substrate is transparent or translucent. The method of claim 56, wherein the coating composition substrate is a silicone composition. The method of claim 56, wherein the dustproof silicone coating composition further contains a fine inorganic filler. 57. The method of claim 56, wherein all of the radicals represented by R and R ¹ in the stopped polysiloxane, which are vinyl bodies, are selected from the group consisting of methyl and phenyl radicals. 57. The method of claim 56, wherein all radicals represented by R and R ¹ in the stopped polysiloxane, which are vinyl bodies, are methyl. 59. The method of claim 56, wherein the viscosity of the stopped polysiloxane, which is a vinyl body, ranges from about 30,000 to about 1,000,000 centipoise at 25 ° C. The method of claim 56, wherein in the resinous organopolysiloxane copolymer, all radicals represented by R ² and R ³ that are not vinyl radicals are selected from the group consisting of methyl and phenyl radicals. The method of claim 56, wherein in the resinous organopolysiloxane copolymer, all radicals represented by R ² and R ³ that are not vinyl radicals are methyl radicals. The method of claim 56, wherein about 100 to about 200 parts by weight of the resinous organopolysiloxane copolymer is present per 100 parts by weight of the vinyl chain-stopped polysiloxane. 67. The method of claim 66, wherein the fine inorganic filler is selected from the group consisting of crushed quartz, titanium dioxide, iron oxide, chromium oxide, glass fibers, calcium carbonate, carbon black, and talc. The method of claim 56, wherein the catalyst is present in an amount sufficient to provide about 10 ⁻³ to 10 ⁻⁶ g of platinum per mole of silicon-bonded vinyl group in the composition. The organohydrogenpolysiloxane of claim 56 wherein the organohydrogenpolysiloxane is selected from the group consisting of 1,3,5,7-tetramethylcyclotetrasiloxane, dimethylhydrogen chain-terminated dimethylpolysiloxane, and dimethylsiloxane units, methylhydrogensiloxane units, and 2 to 10 polysiloxanes and dimethylhydrogensiloxanes having silicon atoms with trimethylsiloxane units, the unit and sio ₂ units being selected from the group consisting of low viscosity fluids in a ratio of about 2: 1. ※ Note: The disclosure is based on the initial application.