Resin particles include resin base particles and silica particles on surfaces of the resin base particles. The silica particles contain a quaternary ammonium salt and have hydrophobized surfaces. A difference (detection temperature A−detection temperature B) between a detection temperature A and a detection temperature B is more than 50° C., where the detection temperature A is a detection temperature from a pyrolysis product of the quaternary ammonium salt determined by pyrolysis mass spectrometry of the resin particles before cleaning, and the detection temperature B is a detection temperature from the pyrolysis product of the quaternary ammonium salt determined by pyrolysis mass spectrometry of the resin particles after cleaning.

A functional resin composition comprising a biomass-derived component; an aromatic dicarboxylic acid; an alcohol component; a chain extender; and a multifunctional compound. The biomass-derived component is biomass-derived succinic acid or mixture with fossil-derived aliphatic dicarboxylic acid. The multifunctional compound is obtained by reaction of 4,4-bis(4-hydroxyphenyl)valeric acid and polyethylene glycol. The functional resin composition has excellent processability, moldability, tearing strength, tensile strength and excellent resistance to hydrolysis.

A functional resin composition comprising a biomass-derived component; an aromatic dicarboxylic acid; an alcohol component; a chain extender; and a multifunctional compound. The biomass-derived component is biomass-derived succinic acid or mixture with fossil-derived aliphatic dicarboxylic acid. The multifunctional compound is obtained by reaction of 4,4-bis(4-hydroxyphenyl)valeric acid and polyethylene glycol. The functional resin composition has excellent processability, moldability, tearing strength, tensile strength and excellent resistance to hydrolysis.

This invention pertains to coating compositions based on polyesters containing 2,2,4,4-tetrametbyM,3-cyclobutanediol (TMCD) and modifying polyester polyols. Coatings based on such polyester blends are capable of providing a good balance of the desirable coating properties, such as solvent resistance, acid resistance, retort resistance, crazing resistance, and bending ability, for metal packaging applications.

This invention pertains to coating compositions based on polyesters containing 2,2,4,4-tetrametbyM,3-cyclobutanediol (TMCD) and modifying polyester polyols. Coatings based on such polyester blends are capable of providing a good balance of the desirable coating properties, such as solvent resistance, acid resistance, retort resistance, crazing resistance, and bending ability, for metal packaging applications.

The present invention relates to polyester polyols (1) carrying at least one keto-type C═O group derived from HO—C(═O)—L.sup.1—C(═O)—R.sup.1 (1i) or from a derivative thereof, wherein L.sup.1 is a linking group and R.sup.1 is selected from the group consisting of C.sub.1-20-alkyl, C.sub.5-8-cycloalkyl, C.sub.6-10-aryl and C.sub.7-20-aralkyl, to aqueous polyurethane dispersions (PUD) comprising at least one polyurethane (2) carrying at least one keto-type C═O group, water, and optionally at least one organic solvent (4), wherein the at least one polyurethane (2) carrying at least one keto-type C═O group comprises units derived from at least one polyester polyol (1), to aqueous self-crosslinkable polyurethane dispersions (SC-PUD) comprising at least one polyurethane (2) carrying at least one keto-type C═O group, at least one compound (3) carrying at least two keto-type C═O group reactive groups, water, and optionally at least one organic solvent (4), wherein the at least one polyurethane (2) carrying at least one keto-type C═O group comprises units derived from at least one polyester polyol (1), to aqueous self-crosslinkable polyurethane coating composition comprising the aqueous self-crosslinkable polyurethane dispersion (SC-PUD) optionally at least one organic solvent (5), at least one coating composition additive (6), optionally at least one polymer (7) different from the polyurethane (2), and optionally at least one monomer (8) carrying at least one olefinically unsaturated group, to substrate coated with the aqueous self-crosslinkable polyurethane coating composition, and to a process for coating the substrate with the aqueous self-crosslinkable polyurethane coating composition.

The present invention relates to polyester polyols (1) carrying at least one keto-type C═O group derived from HO—C(═O)—L.sup.1—C(═O)—R.sup.1 (1i) or from a derivative thereof, wherein L.sup.1 is a linking group and R.sup.1 is selected from the group consisting of C.sub.1-20-alkyl, C.sub.5-8-cycloalkyl, C.sub.6-10-aryl and C.sub.7-20-aralkyl, to aqueous polyurethane dispersions (PUD) comprising at least one polyurethane (2) carrying at least one keto-type C═O group, water, and optionally at least one organic solvent (4), wherein the at least one polyurethane (2) carrying at least one keto-type C═O group comprises units derived from at least one polyester polyol (1), to aqueous self-crosslinkable polyurethane dispersions (SC-PUD) comprising at least one polyurethane (2) carrying at least one keto-type C═O group, at least one compound (3) carrying at least two keto-type C═O group reactive groups, water, and optionally at least one organic solvent (4), wherein the at least one polyurethane (2) carrying at least one keto-type C═O group comprises units derived from at least one polyester polyol (1), to aqueous self-crosslinkable polyurethane coating composition comprising the aqueous self-crosslinkable polyurethane dispersion (SC-PUD) optionally at least one organic solvent (5), at least one coating composition additive (6), optionally at least one polymer (7) different from the polyurethane (2), and optionally at least one monomer (8) carrying at least one olefinically unsaturated group, to substrate coated with the aqueous self-crosslinkable polyurethane coating composition, and to a process for coating the substrate with the aqueous self-crosslinkable polyurethane coating composition.

A novel thermoplastic polyurethane composition is disclosed which comprise the reaction product of a polyisocyanate component, a polyol component, wherein the polyol component comprises a polyester comprising the reaction product of triethylene glycol and/or tetraethylene glycol with a diacid having 6 carbon atoms or fewer, and, optionally, a chain extender component.

A novel thermoplastic polyurethane composition is disclosed which comprise the reaction product of a polyisocyanate component, a polyol component, wherein the polyol component comprises a polyester comprising the reaction product of triethylene glycol and/or tetraethylene glycol with a diacid having 6 carbon atoms or fewer, and, optionally, a chain extender component.

The invention relates to a polyether-polyester copolymer comprising: (i) polyether segments wherein at least one polyether segment contains at least one polytetramethylene oxide segment, (ii) polyester segments, (iii) bridging elements of the structure —CO—R2-CO—, wherein R2 represents an optionally substituted bivalent hydrocarbon residue consisting of 1 to 100 carbon atoms; (iv) one or two end-caps R1-O—(C.sub.2-C.sub.4—O—).sub.e—*, wherein R1 is an optionally substituted hydrocarbon residue and e is an integer of from 0 to 1000.