公开(公告)号：US20240240038A1

公开(公告)日：2024-07-18

申请号：US18571772

申请日：2022-07-01

申请人： PPG Industries Ohio, Inc.

发明人： Brian Carl Okerberg ,  David Alfred Stone ,  Derek James Saxon ,  Christophe R.G. Grenier ,  Ross Anthony Moretti

IPC分类号： C09D5/44

CPC分类号： C09D5/4442 ,  C09D5/4453 ,  C09D5/4457

摘要： The present disclosure is directed to an electrodepositable coating composition comprising a hydroxyl-functional addition polymer comprising constitutional units, at least 70% of which comprise formula (I): —[—C(R1)2—C(R1)(OH)—]— (I), wherein each R1 is independently one of hydrogen, an alkyl group, a substituted alkyl group, a cycloalkyl group, a substituted cycloalkyl group, an alkylcycloalkyl group, a substituted alkylcycloalkyl group, a cycloalkylalkyl group, a substituted cycloalkylalkyl group, an aryl group, a substituted aryl group, an alkylaryl group, a substituted alkylaryl group, a cycloalkylaryl group, a substituted cycloalkylaryl group, an arylalkyl group, a substituted arylalkyl group, an arylcycloalkyl group, or a substituted arylcycloalkyl group; an ionic salt group-containing film-forming polymer comprising active hydrogen functional groups; a blocked polyisocyanate curing agent comprising blocking groups, wherein the blocking groups comprise a 1,2-polyol as a blocking agent; and a bismuth catalyst.

公开(公告)号：US20240294780A1

公开(公告)日：2024-09-05

申请号：US18571405

申请日：2022-07-01

申请人： PPG Industries Ohio, Inc.

发明人： Brian Carl Okerberg ,  David Alfred Stone ,  Christopher Joseph Baldy ,  Ross Anthony Moretti ,  Derek James Saxon ,  Hyun Wook Ro ,  Reza Michael Rock ,  Christophe R.G. Grenier ,  Marissa Elizabeth Johnson ,  Carolyn A.K. Novak

IPC分类号： C09D5/44

CPC分类号： C09D5/4453

摘要： The present disclosure is directed to an electrodepositable coating composition comprising (a) an active hydrogen-containing, ionic salt group-containing film-forming polymer: (b) an at least partially blocked polyisocyanate curing agent: (c) a curing catalyst; and (d) an edge control additive: wherein the electrodepositable coating composition has a gel point of less than 150° C. as measured by the GEL POINT TEST METHOD, an edge coverage of greater than 20%, as measured by the EDGE COVERAGE TEST METHOD, and an Ra of no more than 0.45, as measured by the SURFACE ROUGHNESS TEST METHOD. Also disclosed are methods of coating substrates, coatings, and coated substrates.

公开(公告)号：US20230035603A1

公开(公告)日：2023-02-02

申请号：US17758076

申请日：2020-12-31

申请人： PPG Industries Ohio, Inc.

发明人： David A. Stone ,  Egle Puodziukynaite ,  Joseph R. Swanger ,  Venkatachalam Eswarakrishnan ,  Craig A. Wilson ,  Brian C. Okerberg ,  Hyun Wook Ro ,  Ross Anthony Moretti

IPC分类号： C09D5/44 ,  C09D7/61 ,  C09D7/65

摘要： The present invention is directed to an electrodepositable coating composition comprising an ionic salt group-containing film-forming polymer comprising active hydrogen functional groups; a blocked polyisocyanate curing agent comprising blocking groups, wherein at least 30% of the blocking groups comprise a 1,2-polyol as a blocking agent, based upon the total number of blocking groups; and a bismuth catalyst. Also disclosed are coatings, coated substrates, and methods of coating a substrate.