公开(公告)号：ES2000679A6

公开(公告)日：1988-03-16

申请号：ES8600336

申请日：1986-07-16

Applicant: INT PAINT PLC

Inventor： MARRION ALASTAIR ROBERT

IPC: C08G59/58 ,  C09D163/00 ,  C09D167/00 ,  C09D201/08 ,  C09D5/03 ,  C08L77/12

Abstract: PROCEDIMIENTO PARA PREPARAR UNA COMPOSICION DE REVESTIMIENTO EN POLVO MEDIANTE MEZCLA DE UN COMPONENTE (A) QUE CONTIENE FUNCIONALIDAD ACIDO O ANHIDRIDO CARBOXILICO Y UN COMPONENTE (B) QUE CONTIENE FUNCIONALIDAD HIDROXI, SIENDO AMBOS COMPONENTES (A) Y (B) SOLIDOS A TEMPERATURAS DE HASTA 50JC Y SIENDO AL MENOS UNO DE LOS COMPONENTES (A) Y (B) UNA RESINA SINTETICA QUE TIENE UNA TEMPERATURA DE TRANSICION VITREA DE 0 A 120JC; EXTRUSION DE LA MEZCLA A UNA TEMPERATURA SUPERIOR A LA TEMPERATURA DE TRANSICION VITREA DE AL MENOS UNA DE LAS RESINAS SINTETICAS DE LA MEZCLA, PERO INFERIOR A LA TEMPERATURA A LA CUAL SE PRESENTA UNA FUSION SUSTANCIAL; Y MOLTURACION DEL EXTRUIDO PARA FORMAR UN POLVO. LA COMPOSICION RESULTANTE SE APLICA A SUSTRATOS Y SE CALIENTA PARA CAUSAR LA FUSION Y REACCION DE LOS INGREDIENTES PARA CURAR ASI LA CAPA DE REVESTIMIENTO FORMADA.

公开(公告)号：NO862877L

公开(公告)日：1987-01-19

申请号：NO862877

申请日：1986-07-16

Applicant: INT PAINT PLC

Inventor： MARRION ALASTAIR ROBERT

IPC: C08G59/58 ,  C09D5/03 ,  C09D163/00 ,  C09D167/00 ,  C09D201/08 ,  C09D

Abstract: A powder coating composition comprises a component (A) containing carboxylic acid or anhydride functionality and a component (B) containing hydroxy functionality. The components (A) and (B) are both solids at temperatures up to 50°C and at least one of them is a synthetic resin having a glass transition temperature in the range 0 to 120°C. The carboxylic acid or anhydride-functional component (A) is a compound or polymer containing at least two cyclic carboxylic anhydride groups per molecule or is a compound containing a moiety of the formula: where X is a hydrogen atom or an alkyl group, or a cyclic anhydride thereof. The hydroxy-functional component (B) contains at least two hydroxy groups per molecule and contains at least one amine group in its molecule to catalyse the reaction of the carboxylic acid or anhy­dride groups of component (A) with the hydroxy groups of component (B). The composition is prepared by mixing the ingredients, extruding them at a temperature above the glass transition temperature of at least one of the components but below thefusion temperature, and comminut­ing the extrudate.The composition is applied to sub­strates and heated to cause fusion and reaction of the ingredients to cure the coating layer formed.

公开(公告)号：NO862877A

公开(公告)日：1987-01-19

申请号：NO862877

申请日：1986-07-16

Applicant: INT PAINT PLC

Inventor： MARRION ALASTAIR ROBERT

IPC: C09D5/03 ,  C08G59/58 ,  C09D163/00 ,  C09D167/00 ,  C09D201/08 ,  C09D

CPC classification number: C09D167/00 ,  C08G59/58 ,  C09D163/00 ,  C09D201/08 ,  Y10S525/934 ,  C08L101/08 ,  C08L101/06 ,  C08L2666/02