C08L83/04

Organopolysiloxane composition, and half-cured product and cured product produced from same
11555120 · 2023-01-17 · ·

Provided is a hydrosilylation reactive composition that has a sufficient pot life at room temperature, that can be cured at low temperature by exposure to high energy radiation, and that produces a stable semi-cured product during the curing process, and to provide a semi-cured product and a cured product obtained using this hydrosilylation reactive composition. The composition comprises: (A) a compound containing at least one aliphatically unsaturated monovalent hydrocarbon group in the molecule; (B) a compound containing at least two hydrogen atoms bonded to silicon atoms in the molecule; (C) a first hydrosilylation catalyst exhibiting activity in the composition without exposure to high energy radiation; and (D) a second hydrosilylation catalyst not exhibiting activity unless exposed to high energy radiation, and exhibiting activity in the composition by exposure to high energy radiation.

Organopolysiloxane composition, and half-cured product and cured product produced from same
11555120 · 2023-01-17 · ·

Provided is a hydrosilylation reactive composition that has a sufficient pot life at room temperature, that can be cured at low temperature by exposure to high energy radiation, and that produces a stable semi-cured product during the curing process, and to provide a semi-cured product and a cured product obtained using this hydrosilylation reactive composition. The composition comprises: (A) a compound containing at least one aliphatically unsaturated monovalent hydrocarbon group in the molecule; (B) a compound containing at least two hydrogen atoms bonded to silicon atoms in the molecule; (C) a first hydrosilylation catalyst exhibiting activity in the composition without exposure to high energy radiation; and (D) a second hydrosilylation catalyst not exhibiting activity unless exposed to high energy radiation, and exhibiting activity in the composition by exposure to high energy radiation.

Ultra-soft coatings for interfaces with brain and other soft tissues

A soft conductive composition can include: a crosslinked silicone composition; and single-walled or multi-walled carbon nanotubes in the silicone composition. A neural probe or other implant can include the soft conducive composition on a least a portion of the implant body. A method of making an implant can include: selecting PDMS precursors; cross-linking the PDMS precursor to obtain an elastic modulus of about 3-9 kPa or +/−1%, 5%, 10%, 20%, or 50%; selecting the carbon nanotubes; introducing the carbon nanotubes into the crosslinked PDMS to form a soft conductive composite composition; and coating the soft conductive composite composition onto at least a portion of an implant. A method of measuring properties at a neural interface can include: providing a neural probe having a soft conductive composition; implanting the neural probe having the soft conductive composition at a neural interface; and measuring a property with the neural probe.

Ultra-soft coatings for interfaces with brain and other soft tissues

A soft conductive composition can include: a crosslinked silicone composition; and single-walled or multi-walled carbon nanotubes in the silicone composition. A neural probe or other implant can include the soft conducive composition on a least a portion of the implant body. A method of making an implant can include: selecting PDMS precursors; cross-linking the PDMS precursor to obtain an elastic modulus of about 3-9 kPa or +/−1%, 5%, 10%, 20%, or 50%; selecting the carbon nanotubes; introducing the carbon nanotubes into the crosslinked PDMS to form a soft conductive composite composition; and coating the soft conductive composite composition onto at least a portion of an implant. A method of measuring properties at a neural interface can include: providing a neural probe having a soft conductive composition; implanting the neural probe having the soft conductive composition at a neural interface; and measuring a property with the neural probe.

Acrylic polysiloxane resin coating compositions and uses thereof

An object of the present invention is to provide a coating composition capable of forming a coating film which can maintain its appearance and gloss over a long period and which has high film hardness and high flexibility and exhibits excellent adhesion with respect to an epoxy resin anticorrosive coating film. An acrylic polysiloxane resin coating composition of the invention includes (A) a silicone resin, (B) a compound having one or more functional groups capable of undergoing Michael addition reaction with an unsaturated double bond in an acryloyloxy group, and having one or more alkoxy groups bonded to silicon, (C) a trifunctional or polyfunctional aliphatic urethane acrylate oligomer having a cyclic structure, and (D) a bifunctional acrylate monomer having no ether structures (except an ether structure in an acryloyloxy group) and no aromatic rings, the mass ratio of the total amount of (A) and (B) to the total amount of any acrylate oligomer(s) and any acrylate monomer(s) being 40:60 to 70:30.

Acrylic polysiloxane resin coating compositions and uses thereof

An object of the present invention is to provide a coating composition capable of forming a coating film which can maintain its appearance and gloss over a long period and which has high film hardness and high flexibility and exhibits excellent adhesion with respect to an epoxy resin anticorrosive coating film. An acrylic polysiloxane resin coating composition of the invention includes (A) a silicone resin, (B) a compound having one or more functional groups capable of undergoing Michael addition reaction with an unsaturated double bond in an acryloyloxy group, and having one or more alkoxy groups bonded to silicon, (C) a trifunctional or polyfunctional aliphatic urethane acrylate oligomer having a cyclic structure, and (D) a bifunctional acrylate monomer having no ether structures (except an ether structure in an acryloyloxy group) and no aromatic rings, the mass ratio of the total amount of (A) and (B) to the total amount of any acrylate oligomer(s) and any acrylate monomer(s) being 40:60 to 70:30.

Light diffuser for horticultural lighting
11589518 · 2023-02-28 · ·

The invention relates to a light-diffusing material, having a high transmission of UVA light, useful for horticultural lighting. The light-diffusing material has a hiding power of greater than 50% at 350 nm and a transmission of light at 350 nm of at least 30 percent, and preferably at least 50%. Additionally the light-diffusing material also transmits and diffuses at least 50% of light at 300 nm, 465 nm, and at 800 nm. The light-diffusing material is especially useful as a glazing for horticultural use.

Light diffuser for horticultural lighting
11589518 · 2023-02-28 · ·

The invention relates to a light-diffusing material, having a high transmission of UVA light, useful for horticultural lighting. The light-diffusing material has a hiding power of greater than 50% at 350 nm and a transmission of light at 350 nm of at least 30 percent, and preferably at least 50%. Additionally the light-diffusing material also transmits and diffuses at least 50% of light at 300 nm, 465 nm, and at 800 nm. The light-diffusing material is especially useful as a glazing for horticultural use.

Anisotropic wound closure systems

Novel compositions and systems for closure of wounds are disclosed. The compositions provide devices of improved flexibility and elasticity and are readily applied to wound sites or over wound closure devices. The present invention is also directed to a novel platinum catalyst for use in such compositions. The catalyst provides for rapid curing on topical surfaces such as skin and bonds to such surfaces in about 2-5 minutes.

Anisotropic wound closure systems

Novel compositions and systems for closure of wounds are disclosed. The compositions provide devices of improved flexibility and elasticity and are readily applied to wound sites or over wound closure devices. The present invention is also directed to a novel platinum catalyst for use in such compositions. The catalyst provides for rapid curing on topical surfaces such as skin and bonds to such surfaces in about 2-5 minutes.