C09D143/04

CURABLE COMPOSITIONS WITH ACRYLIC AND SILICONE RESINS
20220380591 · 2022-12-01 ·

Hybrid moisture curable compositions comprising an acrylic copolymer, a functional silicone, a crosslinker, and a moisture cure catalyst are disclosed. The acrylic copolymer includes (i) a functional monomer selected from a silane monomer, a siloxane monomer, a hydroxy functional monomer, or a combination thereof or (ii) a reaction product of an amino silane and an acrylic polymer derived from one or more (meth)acrylates and one or more carboxylic acid anhydrides. The hybrid compositions are stable and exhibit properties typically ascribed to each individual polymer component. Methods of making and using the hybrid curable compositions are also described.

Self-polishing zwitterionic anti-fouling resin having main chain degradability and preparation therefor and use thereof

The present invention belongs to the technical field of marine anti-fouling materials, and discloses a self-polishing zwitterionic anti-fouling resin having a main chain degradability and the preparation therefor and the use thereof. The self-polishing zwitterionic anti-fouling resin is formed by copolymerizing the following three monomers (in the total mass of the monomers): 1% to 80% of an olefinic reactive monomer, 1% to 80% of a cycloketene acetal monomer, and 1% to 80% of a betaine type precursor. The anti-fouling resin has a main chain degradability and a side chain hydrolyzability, and the transition of a coating from being hydrophobic to being hydrophilic is achieved by the hydrolysis of a surface to produce a super-hydrophilic zwitterionic surface, in order to further enhance the anti-fouling ability of the system. The material not only overcomes the disadvantages of poor mechanical properties and poor solubility in an organic solvent of a zwitterionic material, but can also effectively control the long-term stable release of an anti-fouling agent, so as to achieve a synergistic anti-fouling effect of the anti-fouling agent and an anti-protein. The method of the present invention is simple, has a relatively low cost, and is suitable for industrial production. The material is used in the field of marine anti-fouling coatings.

ADHESIVE PRIMERS AND ARTICLES INCLUDING THE SAME
20220372345 · 2022-11-24 ·

Provided are adhesive articles that include a silicone adhesive and a substrate, with a primer layer interposed between the silicone adhesive and the substrate. The primer layer includes a polymer having a polyorganosiloxane pendant group P represented by the formula (I) where each R.sup.1 is independently an alkyl, haloalkyl, arylalkyl, alkenyl, aryl, or aryl substituted with an alkyl, alkoxy, or halo; R2 is an alkyl or an alkenyl group; R3 is an alkylene or an arylalkylene group; and n is an integer in the range of 1 to 20. The primer layer typically improves the adhesion between the silicone adhesive and a wide variety of substrates.

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Smart release potash fertilizer granules

There is provided a smart release potash fertilizer granule comprising a potash core; an extended release layer covering the potash core, wherein the extended release layer comprises water-swellable copolymeric nanoparticles and at least one water-soluble organic acid or water-soluble organic carboxylate salt; a controlled release layer covering the extended release layer, wherein the controlled release layer comprises water-swellable copolymeric nanoparticles; and an anticaking layer covering the controlled release layer, wherein the anticaking layer comprises water-insoluble copolymeric nanoparticles.

HIGHLY STRETCHABLE SUPERHYDROPHOBIC THIN FILM USING INITIATED CHEMICAL VAPOR DEPOSITION AND METHOD OF PREPARING SAME
20220363941 · 2022-11-17 ·

A highly stretchable superhydrophobic thin film using initiated chemical vapor deposition is prepared by a method in which a substrate is coated with a copolymer at a nanometer thickness by allowing a fluorine monomer containing 4 to 6 fluoroalkyl groups and having a glass transition temperature of 5° C. or less to react with a crosslinking monomer on the substrate in the presence of an initiator in an initiated chemical vapor deposition reactor and thus its durability can be secured in foldable and wearable devices.

HIGHLY STRETCHABLE SUPERHYDROPHOBIC THIN FILM USING INITIATED CHEMICAL VAPOR DEPOSITION AND METHOD OF PREPARING SAME
20220363941 · 2022-11-17 ·

A highly stretchable superhydrophobic thin film using initiated chemical vapor deposition is prepared by a method in which a substrate is coated with a copolymer at a nanometer thickness by allowing a fluorine monomer containing 4 to 6 fluoroalkyl groups and having a glass transition temperature of 5° C. or less to react with a crosslinking monomer on the substrate in the presence of an initiator in an initiated chemical vapor deposition reactor and thus its durability can be secured in foldable and wearable devices.

(meth)acrylic copolymer, method for producing same, resin composition and antifouling paint composition

A (meth)acrylic copolymer of the present invention includes a constituent unit (B) derived from a polysiloxane block-containing polymerizable monomer (b) represented by Formula (b1). In Formula (b1), R.sup.30 represents a hydrogen atom or a methyl group, a represents an integer of 2 to 5, b represents a number of 0 to 50, c represents an integer of 0 to 18, d represents a number of 1 to 1000, e represents a number of 1 to 80, R.sup.31 to R.sup.39 each represents an alkyl group, an alkoxy group, a phenyl group, a substituted phenyl group, a phenoxy group, or a substituted phenoxy group.

(meth)acrylic copolymer, method for producing same, resin composition and antifouling paint composition

A (meth)acrylic copolymer of the present invention includes a constituent unit (B) derived from a polysiloxane block-containing polymerizable monomer (b) represented by Formula (b1). In Formula (b1), R.sup.30 represents a hydrogen atom or a methyl group, a represents an integer of 2 to 5, b represents a number of 0 to 50, c represents an integer of 0 to 18, d represents a number of 1 to 1000, e represents a number of 1 to 80, R.sup.31 to R.sup.39 each represents an alkyl group, an alkoxy group, a phenyl group, a substituted phenyl group, a phenoxy group, or a substituted phenoxy group.

Urea (multi)-(meth)acrylate (multi)-silane compositions and articles including the same

Urea (multi)-(meth)acrylate (multi)-silane precursor compounds, synthesized by reaction of (meth)acrylated materials having isocyanate functionality with aminosilane compounds, either neat or in a solvent, and optionally with a catalyst, such as a tin compound, to accelerate the reaction. Also described are articles including a substrate, a base (co)polymer layer on a major surface of the substrate, an oxide layer on the base (co)polymer layer; and a protective (co)polymer layer on the oxide layer, the protective (co)polymer layer including the reaction product of at least one urea (multi)-(meth)acrylate (multi)-silane precursor compound synthesized by reaction of (meth)acrylated materials having isocyanate functionality with aminosilane compounds. The substrate may be a (co)polymer film or an electronic device such as an organic light emitting device, electrophoretic light emitting device, liquid crystal display, thin film transistor, or combination thereof. Methods of making the urea (multi)-(meth)acrylate (multi)-silanes and their use in composite films and electronic devices are described.

Urea (multi)-(meth)acrylate (multi)-silane compositions and articles including the same

Urea (multi)-(meth)acrylate (multi)-silane precursor compounds, synthesized by reaction of (meth)acrylated materials having isocyanate functionality with aminosilane compounds, either neat or in a solvent, and optionally with a catalyst, such as a tin compound, to accelerate the reaction. Also described are articles including a substrate, a base (co)polymer layer on a major surface of the substrate, an oxide layer on the base (co)polymer layer; and a protective (co)polymer layer on the oxide layer, the protective (co)polymer layer including the reaction product of at least one urea (multi)-(meth)acrylate (multi)-silane precursor compound synthesized by reaction of (meth)acrylated materials having isocyanate functionality with aminosilane compounds. The substrate may be a (co)polymer film or an electronic device such as an organic light emitting device, electrophoretic light emitting device, liquid crystal display, thin film transistor, or combination thereof. Methods of making the urea (multi)-(meth)acrylate (multi)-silanes and their use in composite films and electronic devices are described.