Silicone polyether microemulsions are disclosed containing i) at least 20% by weight of a water immiscible dispersed phase comprising certain polydialkylsiloxane-polyoxyalkylene copolymers having 0.1 to 10 wt % ethylene oxide (C.sub.2H.sub.4O) groups, optionally a water immiscible silicone or hydrocarbon fluid, and ii) at least 5% by weight of an emulsifier. The silicone polyether microemulsions are optically transparent and have an average particle size of less than 100 nanometers. They may be used in a variety of personal care product formulations. In particular, the silicone polyether microemulsions may be used to prepare clear personal care products.

The present invention pertains to antimicrobial compositions comprising inter alia at least one alkenyl- and/or alkynyl-substituted polysiloxane, at least one polysiloxane comprising silicon-bonded hydrogen atoms, and at least one hydrosilylation catalyst, as well as antimicrobial silicone gels, wound dressings, and methods of preparing the above.

A silicone modified organic polymer is shown and described herein. The silicone modified organic polymer is a reaction product of a composition comprising an organic polyol, a silicone resin, and a hydrophilic silane. The hydrophilic silicone modified resin is directly dispersible in water. An aqueous dispersion of the silicone modified organic polymer is suitable for use as an additive in a coating composition.

This disclosure describes micro, sub-micro, and nano-cellular polymer foams formed from a polymer composition that includes a polymer and functionalized carbon nanotubes, and systems and methods of formation thereof. The microcellular polymer foam has an average pore size within a range of 1 micron to 100 microns, the sub-microcellular polymer foam has an average pore size within a range of 0.5 microns to 1 micron, and the nano-cellular polymer foam has an average pore size within a range of 10 nanometers to 500 nanometers. In other aspects, this disclosure describes micro, sub-micro, and nano-cellular polymer foams formed from a polymer composition that includes a polymer and non-functionalized carbon nanotubes.

[Problem]

Provided is a hardcoat-less film that is relatively lightweight, has excellent mechanical strength, and has excellent heat resistance even without regulated PFAS substance.

[Solution]

A hardcoat-less film that fulfills a condition that an elastic-to-plastic ratio is 70% or more in an indentation test and a glass transition temperature and a melting point each are neither lower than nor equal to 200 C., and fulfills at least one of a condition that a Young's modulus is 1000 MPa or more in an indentation test or a condition that a Young's modulus is from 1000 to 5000 MPa in a tensile test.

[Selected Drawing] None

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, wherein the polycarbonate-polyorganosiloxane copolymer satisfies the following condition (A) or (B): condition (A): a hexane extraction amount of the polycarbonate-polyorganosiloxane copolymer is 150 ppm or less; and condition (B): average weights of polyorganosiloxane blocks in polycarbonate-polyorganosiloxane copolymers obtained by separating the polycarbonate-polyorganosiloxane copolymer with a gel permeation chromatograph satisfy a specific expression.

A composition for producing polyurethane foam contains a polyisocyanate component and a polyol component, wherein the composition additionally contains at least one organic compound V which contains at least one radical R.sup.A selected from the group consisting of

##STR00001##

wherein * denotes the bond to the remaining portion of the at least one organic compound V, and wherein R.sup.1 are independently of one another identical or different and selected from H or branched or linear alkyl radicals having 1 to 30 carbon atoms which optionally also contain heteroatoms.

Provided is a polycarbonate-polyorganosiloxane copolymer, which is produced by using a diol monomer (a1) and a polyorganosiloxane (a2) satisfying the following condition, including: a polyorganosiloxane block (A-1) including a specific repeating unit; and a polycarbonate block (A-2) formed of a specific repeating unit: a mixture, which is obtained by bringing the diol monomer (a1), the polyorganosiloxane (a2), a carbonic acid diester, and a basic catalyst present at the same amount ratio as that at a time of production of the polycarbonate-polyorganosiloxane copolymer into contact with each other at from 100 C. to 250 C. for from 0.5 hour to 5 hours, has a haze value of 30 or less measured under conditions of 23 C. and an optical path length of 10 mm in conformity with ISO 14782:1999.