Polysiloxane copolymers, thermoplastic composition, and articles formed therefrom

A window article consisting essentially of:

• a frame and a sheet supported by the frame, wherein the sheet consists essentially of:
• a polysiloxane copolymer composition consisting essentially of:
• a.) a polysiloxane unit comprising siloxane units, wherein
• the polysiloxane unit is of the formula:
• or of the formula:
• wherein E is 4 to 50;
• each R is the same or different and is a C1-13 monovalent organic group, and each R2 is independently a divalent C1-30 alkylene or C7-30 arylene-alkylene;
• and Ar is a C6-30 arylene group;
• and
• b.) an arylate-containing unit consisting of:
• 50 to 100 mole percent of arylate ester units, wherein the arylate ester units are isophthalate-terephthalate-resorcinol ester units of the formula:
• less than 50 mole percent aromatic carbonate units, wherein the aromatic carbonate units comprise
• less than 30 mole percent resorcinol carbonate units of the formula:
• and
• less than 35 mole percent bisphenol carbonate units of the formula:
• wherein Ra, Rb, and Rf are each independently C1-12 alkyl or halogen;
• Rc and Rd are each independently hydrogen, C1-12 alkyl, cyclic C1-12 alkyl, C7-12 arylalkyl, C1-12 heteroalkyl, or cyclic C7-12 heteroarylalkyl;
• R1 is derived from resorcinol;
• p, q, and u are independently 0 to 4, m is 5 to 75 and n is 3 to 50, and the sum of the mole percentages of isophthalate-terephthalate-resorcinol ester units, resorcinol carbonate units, and bisphenol carbonate units is 100 mole percent,
• wherein the siloxane units of the polysiloxane unit are present in the polysiloxane copolymer composition in an amount of 0.2 to 10 wt % based on the weight of the polysiloxane copolymer composition,
• wherein the properties of the polysiloxane composition are such that it can be molded into a test chip having a thickness of 2.0±0.12 millimeters that has a haze of less than or equal to 3%, according to ASTM D1003-00, and
• wherein the sheet has a 2 minute integrated heat release rate of less than or equal to 65 kilowatt-minutes per square meter (kW-min/m2) and a peak heat release rate of less than 65 kilowatts per square meter (kW/m2) as measured using the method of FAR F25.4, in accordance with Federal Aviation Regulation FAR 25.853 (d).

A window article comprising:

• a polysiloxane copolymer composition comprising:
• a.) a polysiloxane unit comprising siloxane units, wherein
• the polysiloxane unit is of the formula:
• or of the formula:
• or of the formula:
• or of the formula:
• or a combination comprising these polysiloxane units, wherein each R is the same or different and is C1-8 alkyl or C6-12 aryl, E is 4 to 50, T is a C6-20 arylene group;
• and R1 is a C6-30 arylene group, or
• the polysiloxane unit is of the formula:
• or of the formula
• or a combination comprising these polysiloxane units, wherein each R is the same or different, and is C1-13 alkyl;
• n is 0 or 1;
• each M is a C1-3 alkoxy;
• E is 4 to 50, T is a C6-20 arylene group;
• and R1 is a C6-30 arylene group, and
• b.) an arylate-containing unit consisting of:
• 50 to 100 mole percent of arylate ester units, wherein the arylate ester units are isophthalate-terephthalate-resorcinol ester units of the formula:
• less than 50 mole percent aromatic carbonate units, wherein the aromatic carbonate units comprise
• less than 30 mole percent resorcinol carbonate units of the formula:
• and
• less than 35 mole percent bisphenol carbonate units of the formula:
• wherein Ra, Rb, and Rf are each independently C1-12 alkyl or halogen;
• Rc and Rd are each independently hydrogen, C1-12 alkyl, cyclic C1-12 alkyl, C7-12 arylalkyl, C1-12 heteroalkyl, or cyclic C7-12 heteroarylalkyl;
• R1 is derived from resorcinol;
• p, q, and u are independently 0 to 4, m is 5 to 75, n is 3 to 50, and the sum of the mole percentages of isophthalate-terephthalate-resorcinol ester units, resorcinol carbonate units, and bisphenol carbonate units is 100 mole percent,
• wherein the siloxane units of the polysiloxane unit are present in the polysiloxane copolymer composition in an amount of 0.2 to 10 wt % based on the weight of the polysiloxane copolymer composition,
• wherein the properties of the polysiloxane composition are such that it can be molded into a test chip having a thickness of 2.0±0.12 millimeters that has a haze of less than or equal to 3%, according to ASTM D1003-00, and
• wherein the window article has a 2 minute integrated heat release rate of less than or equal to 65 kilowatt-minutes per square meter (kW-min/m2) and a peak heat release rate of less than 65 kilowatts per square meter (kW/m2) as measured using the method of FAR F25.4, in accordance with Federal Aviation Regulation FAR 25.853 (d).

A window article consisting essentially of a frame and a sheet supported by the frame, wherein the sheet consists essentially of:

• a.) 50 to 100 percent by weight of a polysiloxane copolymer composition comprising:
• i.) a polysiloxane unit comprising siloxane units, wherein
• the polysiloxane unit is of the formula:
• wherein E is 4 to 50;
• each R is the same or different and is a C1-13 monovalent organic group, and each R2 is independently a divalent C1-30 alkylene or C7-30 arylene-alkylene;
• and Ar is a C6-30 arylene group;
• and
• ii.) an arylate-containing unit consisting of:
• 50 to 100 mole percent of arylate ester units, wherein the arylate ester units are isophthalate-terephthalate-resorcinol ester units of the formula:
• less than 50 mole percent aromatic carbonate units, wherein the aromatic carbonate units comprise
• less than 30 mole percent resorcinol carbonate units of the formula:
• and
• less than 35 mole percent bisphenol carbonate units of the formula:
• wherein Ra, Rb, and Rf are each independently C1-12 alkyl or halogen;
• Rc and Rd are each independently hydrogen, C1-12 alkyl, cyclic C1-12 alkyl, C7-12 arylalkyl, C1-12 heteroalkyl, or cyclic C7-12 heteroarylalkyl;
• R1 is derived from resorcinol;
• p, q, and u are independently 0 to 4, m is 5 to 75, n is 3 to 50, and the sum of the mole percentages of isophthalate-terephthalate-resorcinol ester units, resorcinol carbonate units, and bisphenol carbonate units is 100 mole percent,
• wherein the siloxane units of the polysiloxane unit are present in the polysiloxane copolymer composition in an amount of 0.2 to 10 wt % based on the weight of the polysiloxane copolymer composition,
• b.) 0 to 50 percent by weight of an additional polymer not identical to the polysiloxane copolymer composition;
• and
• c.) 0 to 1 percent by weight of a flame retardant,
• wherein the weight percentages of each of the polysiloxane copolymer composition, the additional polymer, and the flame retardant are based on the total weight of polysiloxane copolymer composition, additional polymer, and flame retardant,
• wherein the properties of the polysiloxane composition are such that it can be molded into a test chip having a thickness of 2.0±0.12 millimeters that has a haze of less than or equal to 3%, according to ASTM D1003-00, and
• wherein the sheet has a 2 minute integrated heat release rate of less than or equal to 65 kilowatt-minutes per square meter (kW-min/m2) and a peak heat release rate of less than 65 kilowatts per square meter (kW/m2) as measured using the method of FAR F25.4, in accordance with Federal Aviation Regulation FAR 25.853 (d).

A window article comprising:

• a frame and a sheet supported by the frame, wherein the sheet comprises an OSU compliant layer having a hard coat disposed on a surface of the OSU compliant layer,
• wherein the OSU compliant layer comprises a polysiloxane copolymer composition comprising:
• a polysiloxane copolymer composition comprising:
• a.) a polysiloxane unit of the formula:
• or of the formula:
• wherein E is 4 to 50;
• each R is the same or different and is a C1-13 monovalent organic group, and each R2 is independently a divalent C1-30 alkylene or C7-30 arylene-alkylene;
• and Ar is a C6-30 arylene group;
• and
• b.) an arylate-containing unit consisting of:
• 50 to 100 mole percent of arylate ester units, wherein the arylate ester units are isophthalate-terephthalate-resorcinol ester units of the formula:
• less than 50 mole percent aromatic carbonate units, wherein the aromatic carbonate units comprise
• less than 30 mole percent resorcinol carbonate units of the formula:
• and
• less than 35 mole percent bisphenol carbonate units of the formula:
• wherein Ra, Rb, and Rf are each independently C1-12 alkyl or halogen;
• Rc and Rd are each independently hydrogen, C1-12 alkyl, cyclic C1-12 alkyl, C7-12 arylalkyl, C1-12 heteroalkyl, or cyclic C7-12 heteroarylalkyl;
• R1 is derived from resorcinol;
• p, q, and u are independently 0 to 4, m is 5 to 75, n is 3 to 50, and the sum of the mole percentages of isophthalate-terephthalate-resorcinol ester units, resorcinol carbonate units, and bisphenol carbonate units is 100 mole percent,
• wherein the siloxane units of the polysiloxane unit are present in the polysiloxane copolymer composition in an amount of 0.2 to 10 wt % based on the weight of the polysiloxane copolymer composition,
• wherein the properties of the polysiloxane composition are such that it can be molded into a test chip having a thickness of 2.0±0.12 millimeters that has a haze of less than or equal to 3%, according to ASTM D1003-00, and
• wherein the sheet has a 2 minute integrated heat release rate of less than or equal to 65 kilowatt-minutes per square meter (kW-min/m2) and a peak heat release rate of less than 65 kilowatts per square meter (kW/m2) as measured using the method of FAR F25.4, in accordance with Federal Aviation Regulation FAR 25.853 (d).

A window article comprising:

• a frame and a sheet supported by the frame, wherein the sheet comprises an OSU compliant layer having a UV blocking layer disposed on both opposing surfaces of the OSU compliant layer, and a hard coat disposed on a surface of each of the UV blocking layers opposite the OSU compliant layer,
• wherein the OSU compliant layer comprises a polysiloxane copolymer composition comprising:
• a.) a polysiloxane unit of the formula:
• or of the formula:
• wherein E is 4 to 50;
• each R is the same or different and is a C1-13 monovalent organic group, and each R2 is independently a divalent C1-30 alkylene or C7-30 arylene-alkylene;
• and Ar is a C6-30 arylene group;
• and
• b.) an arylate-containing unit consisting of:
• 50 to 100 mole percent of arylate ester units, wherein the arylate ester units are isophthalate-terephthalate-resorcinol ester units of the formula:
• less than 50 mole percent aromatic carbonate units, wherein the aromatic carbonate units comprise
• less than 30 mole percent resorcinol carbonate units of the formula:
• and
• less than 35 mole percent bisphenol carbonate units of the formula:
• wherein Ra, Rb, and Rf are each independently C1-12 alkyl or halogen;
• Rc and Rd are each independently hydrogen, C1-12 alkyl, cyclic C1-12 alkyl, C7-12 arylalkyl, C1-12 heteroalkyl, or cyclic C7-12 heteroarylalkyl;
• R1 is derived from resorcinol;
• p, q, and u are independently 0 to 4, m is 5 to 75, n is 3 to 50, and the sum of the mole percentages of isophthalate-terephthalate-resorcinol ester units, resorcinol carbonate units, and bisphenol carbonate units is 100 mole percent,
• wherein the siloxane units of the polysiloxane unit are present in the polysiloxane copolymer composition in an amount of 0.2 to 10 wt % based on the weight of the polysiloxane copolymer composition,
• wherein the properties of the polysiloxane composition are such that it can be molded into a test chip having a thickness of 2.0±0.12 millimeters that has a haze of less than or equal to 3%, according to ASTM D1003-00, and
• wherein the sheet has a 2 minute integrated heat release rate of less than or equal to 65 kilowatt-minutes per square meter (kW-min/m2) and a peak heat release rate of less than 65 kilowatts per square meter (kW/m2) as measured using the method of FAR F25.4, in accordance with Federal Aviation Regulation FAR 25.853 (d).

An aircraft window, comprising:

• an outer window,
• an inner window,
• a dust cover, and
• a frame,
• wherein the outer window, inner window, and dust cover are secured in the frame such that the inner window is disposed between and is substantially coplanar with each of the dust cover and the outer window;
• the outer window and inner window are separated by a space;
• the dust cover and the inner window are separated by a space;
• and
• wherein the dust cover comprises
• a polysiloxane copolymer composition comprising
• a.) a polysiloxane unit comprising siloxane units, wherein
• the polysiloxane unit is of the formula:
• or of the formula:
• wherein E is 4 to 50;
• each R is the same or different and is a C1-13 monovalent organic group, Ar is a C6-30 arylene group, and each R2 is independently a divalent C1-30 alkylene or C7-30 arylene-alkylene;
• and
• b.) an arylate-containing unit consisting of:
• 50 to 100 mole percent of arylate ester units, wherein the arylate ester units are isophthalate-terephthalate-resorcinol ester units of the formula:
• less than 50 mole percent aromatic carbonate units, wherein the aromatic carbonate units comprise
• less than 30 mole percent resorcinol carbonate units of the formula:
• and
• less than 35 mole percent bisphenol carbonate units of the formula:
• wherein Ra, Rb, and Rf are each independently C1-12 alkyl or halogen;
• Rc and Rd are each independently hydrogen, C1-12 alkyl, cyclic C1-12 alkyl, C7-12 arylalkyl, C1-12 heteroalkyl, or cyclic C7-12 heteroarylalkyl;
• R1 is derived from resorcinol;
• p, q, and u are independently 0 to 4, m is 5 to 75, n is 3 to 50, and the sum of the mole percentages of isophthalate-terephthalate-resorcinol ester units, resorcinol carbonate units, and bisphenol carbonate units is 100 mole percent,
• wherein the siloxane units of the polysiloxane unit are present in the polysiloxane copolymer composition in an amount of 0.2 to 10 wt % based on the weight of the polysiloxane copolymer composition,
• wherein the properties of the polysiloxane composition are such that it can be molded into a test chip having a thickness of 2.0±0.12 millimeters that has a haze of less than or equal to 3%, according to ASTM D1003-00, and
• wherein the dust cover has a 2 minute integrated heat release rate of less than or equal to 65 kilowatt-minutes per square meter (kW-min/m2) and a peak heat release rate of less than 65 kilowatts per square meter (kW/m2) as measured using the method of FAR F25.4, in accordance with Federal Aviation Regulation FAR 25.853 (d).

A plastic mirror, comprising:

• a polymer layer,
• a hard coat disposed on a surface of the polymer layer, and
• a metal layer disposed on a surface of the polymer layer opposite the hard coat,
• wherein the polymer layer comprises
• a polysiloxane copolymer composition comprising
• a.) a polysiloxane unit comprising siloxane units, wherein
• the polysiloxane unit is of the formula:
• or of the formula:
• wherein E is 4 to 50;
• each R is the same or different and is a C1-13 monovalent organic group, Ar is a C6-30 arylene group, and each R2 is independently a divalent C1-30 alkylene or C7-30 arylene-alkylene;
• and
• b.) an arylate-containing unit consisting of:
• 50 to 100 mole percent of arylate ester units, wherein the arylate ester units are isophthalate-terephthalate-resorcinol ester units of the formula:
• less than 50 mole percent aromatic carbonate units, wherein the aromatic carbonate units comprise
• less than 30 mole percent resorcinol carbonate units of the formula:
• and
• less than 35 mole percent bisphenol carbonate units of the formula:
• wherein Ra, Rb, and Rf are each independently C1-12 alkyl or halogen;
• Rc and Rd are each independently hydrogen, C1-12 alkyl, cyclic C1-12 alkyl, C7-12 arylalkyl, C1-12 heteroalkyl, or cyclic C7-12 heteroarylalkyl;
• R1 is derived from resorcinol;
• p, q, and u are independently 0 to 4, m is 5 to 75, n is 3 to 50, and the sum of the mole percentages of isophthalate-terephthalate-resorcinol ester units, resorcinol carbonate units, and bisphenol carbonate units is 100 mole percent,
• wherein the siloxane units of the polysiloxane unit are present in the polysiloxane copolymer composition in an amount of 0.2 to 10 wt % based on the weight of the polysiloxane copolymer composition,
• wherein the properties of the polysiloxane composition are such that it can be molded into a test chip having a thickness of 2.0±0.12 millimeters that has a haze of less than or equal to 3%, according to ASTM D1003-00, and
• wherein the plastic mirror has a 2 minute integrated heat release rate of less than or equal to 65 kilowatt-minutes per square meter (kW-min/m2) and a peak heat release rate of less than 65 kilowatts per square meter (kW/m2) as measured using the method of FAR F25.4, in accordance with Federal Aviation Regulation FAR 25.853 (d).