The invention relates to a polyurethane powder coating material, to the use of such a polyurethane powder coating material, to a method for producing a coating, and to coated substrates.

The invention relates to an one-component (1 K) thermosetting powder coating composition A (PCC A). The invention further relates to a process for making the thermosetting powder coating composition A and processes for coating an article with the PCC A. The invention further relates to a cured PCC A. The invention further relates to an article having coated thereon the thermosetting powder coating composition A as well as to an article having coated and cured thereon the thermosetting powder coating composition A. The invention further relates to the use of: the PCC A, the cured PCC A, articles coated with the PCC A, articles having coated and cured thereon the PCC A. The invention further relates to the use of the PCC A for matt powder coatings. The invention further relates to the use of the PCC A for matt and impact resistant powder coatings. The invention further relates to the use of the PCC A for impact resistant matt powder coatings which have also at least sufficientpreferably excellentlow gloss consistency. The invention further relates to the use of the PCC A as described in the claims and as disclosed herein for impact resistant matt powder coatings which have also at least sufficientpreferably excellent low gloss consistency, and also at least sufficientpreferably excellentbatch-to-batch low gloss consistency.

A coating composition comprising: a. a polyester imide (PEI) polymer having an acid value of 10 mg KOH/g; and b. a crosslinker operable to crosslink the acid functionality on the polyester imide polymer wherein the coating composition is substantially free of bisphenol A (BPA), bisphenol F (BPF), bisphenol A diglycidyl ether (BADGE) and bisphenol F diglycidyl ether (BFDGE).

The invention relates to an additive manufacturing process (3D printing) using particles having a meltable polymer. The meltable polymer comprises a thermoplastic polyurethane polymer which has a melting range (DSC, Differential Scanning calorimetry; second heating at heating rate 5 K/min) of 160 to 270 C. and a Shore D hardness according to DIN ISO 7619-1 of 50 or more and which, at a temperature T, has a melt volume rate (melt volume rate (MVR)) according to ISO 1133 of 5 to 15 cm/10 min and a change of the MVR, when this temperature T increases by 20 C., of greater than or equal to 90 cm.sup.3/10 min. The invention also relates to an item which can be obtained by means of the method.

The invention relates to an additive manufacturing process (3D printing) using particles having a meltable polymer. The meltable polymer comprises a thermoplastic polyurethane polymer which has a flowing temperature (intersection of E and E in the DMA) of 80 C. to <180 C. and a Shore A hardness according to DIN ISO 7619-1 of 50 Shore A and <85 Shore A and which, at a temperature T, has a melt volume rate (melt volume rate (MVR)) according to ISO 1133 of 5 to <15 cm.sup.3/10 min. The invention also relates to an item which can be obtained by means of the method.

A powder coating material contains an acrylic resin that has a side chain having an alkyl group having 4 or more carbon atoms and a hydroxy group; and a curing agent.

A dirt repellant panel coated with a powder coating composition that includes a polymeric binder and an anionic fluorosurfactant present in an amount ranging from about 0.1 wt. % to about 4 wt. %.

The present invention relates to coatings, particularly high performance coatings, containing a polyester polyol comprising recurring units derived from a polyacid source, poly(bisphenol-A carbonate) (PBAC), and a glycol. The PBAC is preferably recycled poly(bisphenol-A carbonate) (rPBAC). These coatings provide improved salt spray and stain resistance along with a variety of other coating performance attributes. The polyols can contain a significant recycle and biobased content, making them sustainable alternatives to petroleum based polyols.

Use of a coating composition in the reduction or prevention of insufficient venting of a beverage can, the beverage can comprising a can body and a can end having a score line on said can end, wherein the coating composition comprises a polyester material, wherein the coating composition is applied to at least the internal surface of the can end over at least a portion of the score line, and wherein a cured film formed from the coating composition has a glass transition temperature (Tg) of at least 50 C. A method of coating a can comprising a can body and a can end having a score line on said can end, wherein the method comprises applying a coating composition to at least a portion of an internal surface of the can end over at least a portion of the score line, the coating composition comprising a polyester material; and curing the coating composition to form a cured film, wherein the cured film has a glass transition temperature (Tg) of at least 50 C., wherein the can, when filled with a carbonated beverage and sealed, exhibits sufficient venting upon rupture of the score line.

A coating composition includes: a polymer prepared from a reaction mixture including: a hydroxyl functional prepolymer comprising a reaction product of a prepolymer mixture and a non-aromatic anhydride. The polymer includes at least two functional groups selected from hydroxyl groups, carboxyl groups and combinations thereof. The polymer includes 10-40 weight % of structural units derived from benzoic acid or substituted benzoic acid and greater than 15 weight % of structural units derived from a polyol having at least three hydroxyl groups based on the total weight of the polymer. A substrate at least partially coated with a coating composition and a method of preparing a coating composition are also disclosed.