C09D167/02

Removable, biodegradable coating

The present invention relates to a functional coating obtained from an aqueous coating composition, which composition comprises a pigment and a polymeric binder, wherein the binder has a weight average molecular weight of from 2000 to 50000 g/mole, and an acid value of 40 to 250, and wherein the binder is a polyester comprising a side group introduced by a Diels-Alder and/or pericyclic Ene-reaction, wherein the side group contains an ionic group and/or an ion-forming group.

Polymers, processes, compositions and uses

The invention relates to a polymer comprising certain specific units. The invention further relates to processes for making the polymer of the invention. The invention further relates to a binder and compositions comprising the polymer, preferably to compositions suitable for paints and coatings. The invention relates in particular to water-borne, solvent-borne and powder coating compositions and preferably to curable water-borne, curable solvent-borne and curable powder coating compositions. The invention further relates to cured compositions. The invention further relates to objects, in particular coatings prepared from the compositions of the invention. The invention further relates to processes for making the compositions of the invention. The invention further relates to articles having coated thereon the compositions of the invention. The invention further relates to articles having coated and cured thereon the compositions of the invention. The invention further relates to various uses of the polymer of the invention, the binder of the invention, the composition of the invention, the cured composition of the invention and various uses of articles having coated and optionally cured thereon the compositions of the invention.

Polymers, processes, compositions and uses

The invention relates to a polymer comprising certain specific units. The invention further relates to processes for making the polymer of the invention. The invention further relates to a binder and compositions comprising the polymer, preferably to compositions suitable for paints and coatings. The invention relates in particular to water-borne, solvent-borne and powder coating compositions and preferably to curable water-borne, curable solvent-borne and curable powder coating compositions. The invention further relates to cured compositions. The invention further relates to objects, in particular coatings prepared from the compositions of the invention. The invention further relates to processes for making the compositions of the invention. The invention further relates to articles having coated thereon the compositions of the invention. The invention further relates to articles having coated and cured thereon the compositions of the invention. The invention further relates to various uses of the polymer of the invention, the binder of the invention, the composition of the invention, the cured composition of the invention and various uses of articles having coated and optionally cured thereon the compositions of the invention.

FREE-STANDING NON-FOULING POLYMERS, THEIR COMPOSITIONS, AND RELATED MONOMERS

Free-standing non-fouling polymers and polymeric compositions, monomers and macromonomers for making the polymers and polymeric compositions, objects made from the polymers and polymeric compositions, and methods for making and using the polymers and polymeric compositions

FREE-STANDING NON-FOULING POLYMERS, THEIR COMPOSITIONS, AND RELATED MONOMERS

Free-standing non-fouling polymers and polymeric compositions, monomers and macromonomers for making the polymers and polymeric compositions, objects made from the polymers and polymeric compositions, and methods for making and using the polymers and polymeric compositions

CLEARCOAT COMPOSITIONS COMPRISING BRANCHED POLYESTERS IN ADDITIVE AMOUNTS AS FLOW ENHANCERS AND LEVELLING AGENTS
20230061744 · 2023-03-02 ·

Disclosed herein is a clearcoat coating material composition including an OH-functional (meth)acrylic copolymer (A1), a branched OH-functional polyester (A2) in an amount in the range of from 1.0 wt.-% to 15.0 wt.-%, based on the total solids content of the coating material composition, and at least one crosslinking agent (B1), which is different from both constituents (A1) and (A2) and which contains crosslinkable functional groups, which can be crosslinked with OH-functional groups. Further disclosed herein are a method of coating a substrate including applying to an optionally pre-coated substrate the inventive clearcoat coating material composition, a coated substrate, which is obtainable by the disclosed method, and a method of using the branched OH-functional polyester (A2) as flow enhancer in a clearcoat coating material application for spray applying said clearcoat coating material application onto an optionally pre-coated substrate and/or as levelling agent.

CLEARCOAT COMPOSITIONS COMPRISING BRANCHED POLYESTERS IN ADDITIVE AMOUNTS AS FLOW ENHANCERS AND LEVELLING AGENTS
20230061744 · 2023-03-02 ·

Disclosed herein is a clearcoat coating material composition including an OH-functional (meth)acrylic copolymer (A1), a branched OH-functional polyester (A2) in an amount in the range of from 1.0 wt.-% to 15.0 wt.-%, based on the total solids content of the coating material composition, and at least one crosslinking agent (B1), which is different from both constituents (A1) and (A2) and which contains crosslinkable functional groups, which can be crosslinked with OH-functional groups. Further disclosed herein are a method of coating a substrate including applying to an optionally pre-coated substrate the inventive clearcoat coating material composition, a coated substrate, which is obtainable by the disclosed method, and a method of using the branched OH-functional polyester (A2) as flow enhancer in a clearcoat coating material application for spray applying said clearcoat coating material application onto an optionally pre-coated substrate and/or as levelling agent.

WHITE EASY-ADHESIVE POLYESTER FILM
20230120617 · 2023-04-20 · ·

A readily adhesive white polyester film comprising a polyester film substrate and a coating layer on at least one surface of the polyester film substrate, the coating layer comprising a cationic antistatic agent containing nitrogen, a polyester resin, and a polyurethane resin, the proportion A (at %) of nitrogen derived from the antistatic agent and the proportion B (at %) of nitrogen derived from the polyurethane resin based on surface element distribution measurement by X-ray photoelectron spectroscopy in the coating layer satisfying the following formulas (i) and (ii), and a surface of the coating layer having a contact angle with respect to water of 50° to 70°:


A(at %)>0.4  (i)


2.0≤B/A≤5.0.  (ii)

WHITE EASY-ADHESIVE POLYESTER FILM
20230120617 · 2023-04-20 · ·

A readily adhesive white polyester film comprising a polyester film substrate and a coating layer on at least one surface of the polyester film substrate, the coating layer comprising a cationic antistatic agent containing nitrogen, a polyester resin, and a polyurethane resin, the proportion A (at %) of nitrogen derived from the antistatic agent and the proportion B (at %) of nitrogen derived from the polyurethane resin based on surface element distribution measurement by X-ray photoelectron spectroscopy in the coating layer satisfying the following formulas (i) and (ii), and a surface of the coating layer having a contact angle with respect to water of 50° to 70°:


A(at %)>0.4  (i)


2.0≤B/A≤5.0.  (ii)

COATING COMPOSITION, COATED METAL SHEET, AND DRAWN AND IRONED CAN AND MANUFACTURING METHOD OF SAME

A coating composition including a polyester resin blend as a principal resin, the polyester resin blend containing a polyester resin having a glass transition temperature of higher than 40° C. and an acid value of less than 10 mg KOH/g and (B) a polyester resin having a glass transition. temperature of higher than 40° C. and an acid value of 10 mg KOH/g or more and less than 50 mg KOH/g, and (C) a curing agent. Alternatively, a coating composition containing a polyester resin, as a principal resin, having a glass transition temperature of 60° C. or higher, a resol-type phenol resin. and/or an amino resin as a curing agent, and an organic sulfonic acid-based catalyst and/or a phosphoric acid-based catalyst as a curing catalyst, in which a content of the curing catalyst is less than. 0.2 part by mass per 100 parts by mass of the principal resin. Provided is a coating composition that can manufacture a coated metal sheet and a drawn and ironed can, which have can making processability, substrate adhesion properties, and flavor sorption resistance all together.