公开(公告)号：US20220002483A1

公开(公告)日：2022-01-06

申请号：US17287621

申请日：2019-10-17

申请人： PPG Industries Ohio, Inc.

发明人： Michael G. Olah ,  Edward R. Millero, Jr. ,  Scott J. Moravek ,  Matthew William Skinner ,  Theodore Frank Novitsky ,  William H. Retsch, Jr. ,  Daniel Martin Connor

IPC分类号： C08G63/91 ,  C09D167/06 ,  C08F283/01 ,  C09D5/03 ,  C09D151/08 ,  B65D65/42

摘要： There is described a method for the production of a functional polyester having functional group X. The method comprises the step of melt blending a composition comprising (i) a high number average molecular weight (Mn) polyester having a Mn of ≥6,000 Da; and (ii) a functional compound comprising functional group Y which may be the same as functional group X or be different to functional group X but be operable to form functional group X in the functional polyester. The composition is melt blended such that the high Mn polyester and the functional compound react to produce the functional polyester. The high Mn polyester has a Mn that is higher than the Mn of the functional compound. The present invention extends to functional polyesters produced by the method; aqueous, solventborne and powder coating compositions containing the functional polyester, and articles coated with the said coating compositions.

公开(公告)号：US20210292593A1

公开(公告)日：2021-09-23

申请号：US17178544

申请日：2021-02-18

申请人： PPG Industries Ohio, Inc.

发明人： Theodore Frank Novitsky ,  John W. Burgman ,  Peter Alan Lukus

IPC分类号： C09D133/08 ,  C09D131/04

摘要： A coating system includes as separate components: (a) a first tintable base composition including: a first resin, a first liquid carrier, and a first pigment package; and (b) a second tintable base composition including: a second resin, a second liquid carrier, and optionally a second pigment package. The pigment volume concentration and/or the sheen and/or the gloss of the first tintable base composition and the second tintable base composition are substantially different. The components (a) and (b) are not mixed together.