The disclosure relates to sidechain functionalized organosiloxane compounds comprising polyalkyleneoxide (POA) and/or polyalkyleneoxide coupled zwitterionic moieties with various other modular side chains including reactive and or non-reactive groups. The present disclosure further also pertains to ice-phobic polymer formulations capable of curing on a substrate to form a surface that is ice-phobic, resistant to ice formation, and/or resistant to ice adhesion. The disclosed ice-phobic polymer formulations comprise one or more disclosed sidechain functionalized organosiloxane compound, one or more binder resin, and/or one or more lubricating liquid. The present disclosure further relates to articles comprising the disclosed ice-phobic polymer compositions, thereby providing articles having ice-phobic properties. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.

Provided is a polycarbonate-polyorganosiloxane copolymer, including a polyorganosiloxane block (A-1) including a specific structural unit and a polycarbonate block (A-2) formed of a specific repeating unit.

A process can be used for increasing the molecular weight of low molecular weight α,ω-polysiloxanediols. The process involves heating the low molecular weight α,ω-polysiloxanediols in the presence of acetic anhydride at temperatures of 80° C. to 220° C., preferably at temperatures of 100 to 200° C., and particularly preferably at temperatures of 120-180° C., for 1 h to 24 h, preferably for 2 h to 16 h, and particularly preferably for 3 h to 12 h. The molar amount of the silanol groups used is greater than that of the acetic anhydride used.

A process can be used for increasing the molecular weight of low molecular weight α,ω-polysiloxanediols. The process involves heating the low molecular weight α,ω-polysiloxanediols in the presence of acetic anhydride at temperatures of 80° C. to 220° C., preferably at temperatures of 100 to 200° C., and particularly preferably at temperatures of 120-180° C., for 1 h to 24 h, preferably for 2 h to 16 h, and particularly preferably for 3 h to 12 h. The molar amount of the silanol groups used is greater than that of the acetic anhydride used.

A laminate body including a base material and a flat silicone sealing layer adhered thereto, generally without any voids, is provided. Also provided is a curable hot melt silicone composition layer with a particular curable hot melt silicone composition, providing a laminate body that does not readily cause stress on a substrate after the curable hot melt silicone composition is cured. A laminate body comprises a base material, and a curable hot melt silicone composition layer in contact with the base material. The curable hot melt silicone composition includes an organopolysiloxane resin containing siloxane units selected from a group containing T units or Q units making up at least 20 mol % or more of all siloxane units. The curable hot melt silicone composition generally has a melt viscosity as measured using a flow tester at a pressure of 2.5 MPa and at 100° C. of 5,000 Pa.Math.s or less.

The invention relates to a silane of the formula (1),

Si(R.sup.1).sub.m(R.sup.2).sub.n(R.sup.3).sub.4-(m+n)  (1)

as defined herein, where the silane has at least one group of the general formula (3):

##STR00001##

as defined herein, to a method for preparing the silane, and to curable compositions, containing the silane and at least one polyorganosiloxane.

The present invention relates to a novel polyorganosiloxane capable of producing a copolycarbonate having improved hardness and to a copolycarbonate prepared by using the same. The novel polyorganosiloxane according to the present invention can be used as a monomer of a copolycarbonate, and it can exhibit improved hardness and chemical resistance simultaneously while maintaining the intrinsic properties of copolycarbonate due to the alkylene or isosorbide-derived structure included in the formula thereof.

Sol-gel coating formulations including metal oxide particles such as aluminum oxide, calcium oxide, zinc oxide, magnesium oxide, and molybdenum oxide embedded in a hybrid polymer matrix based on a reacted form of a resin composition containing a tetraalkylorthosilicate, an aminoalkylsilane, a dialkoxysilane, and a silanol terminated polydimethylsiloxane. The sol-gel coating formulations are suitable for applications such as anticorrosive protective coatings of metal substrates (e.g. mild steel). These anticorrosive coated metal substrates are evaluated on their hydrophobicity (water contact angle), surface roughness, mechanical strength (e.g. hardness), adhesiveness to the substrate (e.g. critical load), and anticorrosiveness upon exposure to a saline solution (e.g. impedance value).

A gel is provided which is the condensation reaction product of the following composition: (i) at least one condensation curable silyl terminated polymer having at least one hydrolysable and/or hydroxyl functional group(s) per molecule; (ii) a cross-linker selected from the group of a silicone, an organic polymer, a silane or a disilane molecule which contains at least two hydrolysable groups per molecule; and (iii) a condensation catalyst selected from the group of titanates, zirconates or tin (II). The molar ratio of hydroxyl and/or hydrolysable groups in polymer (i) to hydrolysable groups from component (ii) is between 0.5:1 and 1:1 using a monosilane cross-linker or 0.75:1 to 3:1 using disilanes, and the molar ratio of M-OR or tin (II) functions to the hydroxyl and/or hydrolysable group(s) in polymer (i) is comprised between 0.01:1 and 0.5:1, where M is titanium or zirconium. The composition, and uses for the gel are also disclosed.

A gel is provided which is the condensation reaction product of the following composition: (i) at least one condensation curable silyl terminated polymer having at least one hydrolysable and/or hydroxyl functional group(s) per molecule; (ii) a cross-linker selected from the group of a silicone, an organic polymer, a silane or a disilane molecule which contains at least two hydrolysable groups per molecule; and (iii) a condensation catalyst selected from the group of titanates, zirconates or tin (II). The molar ratio of hydroxyl and/or hydrolysable groups in polymer (i) to hydrolysable groups from component (ii) is between 0.5:1 and 1:1 using a monosilane cross-linker or 0.75:1 to 3:1 using disilanes, and the molar ratio of M-OR or tin (II) functions to the hydroxyl and/or hydrolysable group(s) in polymer (i) is comprised between 0.01:1 and 0.5:1, where M is titanium or zirconium. The composition, and uses for the gel are also disclosed.