C08L43/04

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.

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.

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.

Over-patch having improved compatibility and a long adhesion duration and method for producing said over-patch

The invention relates to a medical product for a fastening duration of at least 7 days having good skin compatibility. The medical product includes a central adhesive compartment (3) and an over-patch. The over-patch is free of active ingredients and is formed from a water-vapor-permeable back layer (1) and an adhesive polymer layer (2) that is free of active ingredients. The invention further relates to a method for the production of the foregoing medical product, and to kits of parts containing laminates of layers 1 and 2.

Over-patch having improved compatibility and a long adhesion duration and method for producing said over-patch

The invention relates to a medical product for a fastening duration of at least 7 days having good skin compatibility. The medical product includes a central adhesive compartment (3) and an over-patch. The over-patch is free of active ingredients and is formed from a water-vapor-permeable back layer (1) and an adhesive polymer layer (2) that is free of active ingredients. The invention further relates to a method for the production of the foregoing medical product, and to kits of parts containing laminates of layers 1 and 2.

Poly(meth)acrylate, and coating composition and coated article containing same
11485805 · 2022-11-01 · ·

A poly(meth)acrylate represented by formula (1) can impart a hardcoat layer having exceptional scratch resistance, strong impact resistance, and excellent weather resistance, especially weather crack resistance. ##STR00001##
(R.sup.1-R.sup.4 represent hydrogen atoms, etc.; Y represents a divalent hydrocarbon group having a polycyclic structure; X represents a divalent or trivalent saturated hydrocarbon group in which at least one selected from oxygen atoms, etc., may be interposed; T represents a urethane group (bonds with X by an oxygen atom); Q represents a divalent or trivalent saturated hydrocarbon group in which at least one selected from oxygen atoms, etc., may be interposed; P represents a (meth)acryloyloxy group; a and c represent the number of Q-T bonded to X, a and c being 1 when X is divalent and 2 when X is trivalent; b and d represent the number of (meth)acryloyloxy groups bonded to Q, b and d being 1 or 2 when a or c is 1, and being 2, 3, or 4 when a is 2; and n represents an integer of 0-6.)

COATING COMPOSITION AND METHOD FOR FORMING MULTILAYER COATING FILM
20230063826 · 2023-03-02 ·

Provided is a coating composition from which a coating film having excellent decontamination properties, scratch resistance, and transparency can be formed. Specifically, provided is a coating composition containing a resin (A) having a hydroxyl group and an alkoxysilyl group, a curing agent (B), and an acrylic resin-coated silica particle (C) dispersion, wherein: the acrylic resin-coated silica particle (C) dispersion is a reaction product of silica particles with a polymerizable unsaturated group (c1) and a polymerizable unsaturated monomer mixture (c2); and the polymerizable unsaturated monomer mixture (c2) contains, as at least a part of components thereof, a polymerizable unsaturated monomer having a polysiloxane structure (c21) and an alkoxysilyl group-containing polymerizable unsaturated monomer (c22).

COATING COMPOSITION AND METHOD FOR FORMING MULTILAYER COATING FILM
20230063826 · 2023-03-02 ·

Provided is a coating composition from which a coating film having excellent decontamination properties, scratch resistance, and transparency can be formed. Specifically, provided is a coating composition containing a resin (A) having a hydroxyl group and an alkoxysilyl group, a curing agent (B), and an acrylic resin-coated silica particle (C) dispersion, wherein: the acrylic resin-coated silica particle (C) dispersion is a reaction product of silica particles with a polymerizable unsaturated group (c1) and a polymerizable unsaturated monomer mixture (c2); and the polymerizable unsaturated monomer mixture (c2) contains, as at least a part of components thereof, a polymerizable unsaturated monomer having a polysiloxane structure (c21) and an alkoxysilyl group-containing polymerizable unsaturated monomer (c22).

(METH)ACRYLATE ADHESIVE COMPOSITION
20230123272 · 2023-04-20 · ·

The disclosure relates to a (meth)acrylate adhesive composition comprising a (meth)acrylate polymer, a cross-linking agent and a reactive siloxane copolymer with the acid value of the (meth)acrylate polymer is between 0 and 15 mgKOH/g, and the reactive siloxane copolymer derived from the copolymerization of a silane compound represented by the formula: X—R.sup.1—SiR.sup.2.sub.3-a(OR.sup.3).sub.a (I), a non-hydroxyl acrylate monomer containing C.sub.1-C.sub.4 alkyl group and a hydroxyl (meth)acrylate monomer, wherein the use amount of the reactive siloxane copolymer is between 0.1 parts to 6 parts by weight per hundred parts by weight of the (meth)acrylate polymer, wherein X is an acryl group or a (methyl)acryloxy group, R.sup.1 is a C.sub.1-C.sub.4 alkyl group or alkoxy group, R.sup.2 and R.sup.3 respectively are C.sub.1-C.sub.4 alkyl group, and a is an integer between 1 to 3. The present (meth)acrylate adhesive composition can provide an enhanced adhesion and weather resistance, also an enhanced stability over time and storage stability, when be used in polarizer bonding, can show a satisfied adhesion reliability and a proper rework ability.

(METH)ACRYLATE ADHESIVE COMPOSITION
20230123272 · 2023-04-20 · ·

The disclosure relates to a (meth)acrylate adhesive composition comprising a (meth)acrylate polymer, a cross-linking agent and a reactive siloxane copolymer with the acid value of the (meth)acrylate polymer is between 0 and 15 mgKOH/g, and the reactive siloxane copolymer derived from the copolymerization of a silane compound represented by the formula: X—R.sup.1—SiR.sup.2.sub.3-a(OR.sup.3).sub.a (I), a non-hydroxyl acrylate monomer containing C.sub.1-C.sub.4 alkyl group and a hydroxyl (meth)acrylate monomer, wherein the use amount of the reactive siloxane copolymer is between 0.1 parts to 6 parts by weight per hundred parts by weight of the (meth)acrylate polymer, wherein X is an acryl group or a (methyl)acryloxy group, R.sup.1 is a C.sub.1-C.sub.4 alkyl group or alkoxy group, R.sup.2 and R.sup.3 respectively are C.sub.1-C.sub.4 alkyl group, and a is an integer between 1 to 3. The present (meth)acrylate adhesive composition can provide an enhanced adhesion and weather resistance, also an enhanced stability over time and storage stability, when be used in polarizer bonding, can show a satisfied adhesion reliability and a proper rework ability.