C08G18/6541

Isocyanate-polyamide block copolymers
20210380805 · 2021-12-09 · ·

A thermoplastic polyamide can be obtained through the reaction of at least the components (i), (ii), and (iii), where a catalyst having a Lewis base component is used in the reaction. Component (i) is a composition containing a polymeric compound having two carboxylic acid moieties; component (ii) is a dicarboxylic acid composition containing at least one dicarboxylic acid; and component (iii) is a diisocyanate composition containing at least one diisocyanate. A process can be used for producing the thermoplastic polyamide and a method for the use thereof. A tandem reactive extruder can be used for the reaction.

Matted polyamide-pud

Polymers are disclosed that incorporate portions of secondary or tertiary polyamide segments connected with polyisocyanates. These polymers have enhanced matting properties. The enhanced matting properties are from creating an inherently matt surface from the polymer without the use of any separate fine particle size matting additives. Conventional matting agents such as fine particle size silica usually results in loss of physical properties such as haze development and porosity in the coating from the matting agent. Composites and hybrids of these polymers and other polyamides, polyurethane with vinyl polymers (acrylates) are also disclosed and claimed.

WATERBORNE POLYURETHANE DISPERSION AND METHOD FOR PREPARING SAME

A waterborne polyurethane dispersion is provided. The waterborne polyurethane dispersion comprises residual moiety of a hydroxy-terminated siloxane compound in the main chain and exhibits good anti-stickiness and/or wet color fastness while retaining superior mechanical properties. A laminated synthetic leather article prepared with said waterborne polyurethane dispersion as well the method for preparing the synthetic leather article are also provided.

COATING COMPOSITION, DECORATIVE FILM AND DECORATIVE MOLDED ARTICLE
20220145123 · 2022-05-12 ·

The present invention provides an ionizing radiation curable paint composition which is capable of forming a cured film that has excellent elongation (for example, 30% or more) under heating and has excellent solvent resistance and chemical resistance and which can contain an alcohol as a diluent solvent. The ionizing radiation curable paint composition contains a urethane (meth)acrylate oligomer (A1) having 6 or more (meth)acryloyl groups and having a weight average molecular weight of 3,000 to 50,000, wherein the urethane (meth)acrylate oligomer (A1) is a silicone-modified oligomer having a constituent unit (a) derived from a multifunctional (meth)acrylate monomer having a hydroxy group and 3 or more (meth)acryloyl groups, a constituent unit (b) derived from an alcohol having 2 or more hydroxy groups and having a molecular weight of 100 or lower, a constituent unit (c) derived from isophorone diisocyanate, and a constituent unit (d) derived from a carbinol-modified polysiloxane.

LAMINATED POLYESTER FILM
20220119603 · 2022-04-21 · ·

The invention provides a laminated polyester film that is highly transparent, is resistant to blocking, and has excellent adhesion to a hardcoat layer and UV ink. The laminated polyester film contains a polyester film substrate and a coating layer on at least one surface of the polyester film substrate. The coating layer is formed by curing a composition containing a urethane resin with a polycarbonate structure, a crosslinking agent, and a polyester resin. The maximum value of a nitrogen element distribution curve based on element distribution measurement of the coating layer in the depth direction is present in the vicinity of the surface of the coating layer on a side opposite to the polyester film substrate. The polycarbonate structure is present in a suitable amount at the surface of the coating layer on a side opposite to the polyester film substrate.

Anti-corrosion coating composition

Provided is a humic acid-based coating suspension comprising humic acid, particles of an anti-corrosive pigment or sacrificial metal, and a binder resin dissolved or dispersed in a liquid medium, wherein the humic acid has a weight fraction from 0.1% to 50% based on the total coating suspension weight excluding the liquid medium. Also provided is an object or structure coated at least in part with such a coating.

Polyurethane dispersions

The present disclosure is drawn to polyurethane dispersions. In one example, a polyurethane dispersion can include a polyurethane with a polymeric ionic side chain and a polymeric non-ionic side chain. The polyurethane can be formed of polymerized monomers including a diisocyanate, a first polymeric diol, and a second polymeric diol. The first polymeric diol can include a first polymer chain replacing a hydrogen atom of a thiol group of a 1-thioglycerol molecule. The first polymer chain can include a block of a polymerized ionic group-containing vinyl monomer. The second polymeric diol can include a second polymer chain replacing a hydrogen atom of a thiol group of a 1-thioglycerol molecule. The second polymer chain can include a block of a polymerized non-ionic vinyl monomer, and the second polymer chain can be devoid of ionic groups.

MATTED POLYAMIDE-PUD

Polymers are disclosed that incorporate portions of secondary or tertiary polyamide segments connected with polyisocyanates. These polymers have enhanced matting properties. The enhanced matting properties are from creating an inherently matt surface from the polymer without the use of any separate fine particle size matting additives. Conventional matting agents such as fine particle size silica usually results in loss of physical properties such as haze development and porosity in the coating from the matting agent. Composites and hybrids of these polymers and other polyamides, polyurethane with vinyl polymers (acrylates) are also disclosed and claimed.

WATERBORNE POLYURETHANE DISPERSION AND METHOD FOR PREPARING THE SAME

A waterborne polyurethane dispersion is provided. The waterborne polyurethane dispersion comprises residual moiety of a hydroxy-terminated siloxane compound in the main chain and exhibits good anti-stickiness while retaining superior mechanical properties. A laminated synthetic leather article prepared with said waterborne polyurethane dispersion as well the method for preparing the synthetic leather article are also provided.

THERMOSETTING ADHESIVE AND ADHESIVE SHEET

Provided is a thermosetting adhesive including: a polyurethane; an isocyanate; an epoxy; and a phenoxy resin, in which dynamic viscoelasticity spectrum of a cured product has a peak indicating a softening temperature in an area of 200° C. or higher and has no peak in an area of 160° C. or lower.