公开(公告)号：EP1794198A1

公开(公告)日：2007-06-13

申请号：EP05791083.8

申请日：2005-08-26

Applicant: BASF CORPORATION

Inventor： OHRBOM, Walter ,  CAMPBELL, Donald ,  ST. AUBIN, Donald ,  RAMESH, Swaminathan ,  HARRIS, Paul ,  RÖCKRATH, Ulrike

IPC: C08F20/00 ,  C08F20/02 ,  C08F20/04 ,  C08F20/06 ,  C08F20/08 ,  C08F8/08

CPC classification number: C08F220/06 ,  C08F8/00 ,  C08F8/14 ,  C08F220/08 ,  C08F222/20 ,  C08F222/22 ,  C08L2312/00 ,  C09D133/14 ,  C09D201/025 ,  C08F265/06

Abstract: Disclosed is a method for making nongelled addition polymers, especially carbamate functional additional polymers from linear unsaturated anhydrides. The method comprises reacting an unsaturated linear anhydride with an active hydrogen compound to provide two monomers comprising polymerizable C=C bonds, at least one of said monomers comprising an acid functional group; polymerizing the polymerizable C=C bonds of the two monomers to provide an acid functional polymerization product; and reacting the acid functional polymerization product with an epoxy functional compound to provide a nongelled addition polymer, wherein the disclosed method does not include a step comprising the physical removal of any acid functional monomers or polymerization products. Also disclosed is a curable coating composition containing the resulting carbamate functional polymer, as well as a coated substrate comprising a cured film resulting from the application and curing of the disclosed curable coating composition.

公开(公告)号：EP1320565B1

公开(公告)日：2006-05-24

申请号：EP01959191.6

申请日：2001-07-26

Applicant: BASF CORPORATION

Inventor： RAMESH, Swaminathan ,  GUPTA, Manoj

IPC: C08G18/77 ,  C09D175/04

CPC classification number: C09D175/04 ,  C08G18/4283 ,  C08G18/8029 ,  C08G18/8077

Abstract: The polyisocyanate ester compound is a branched material having at least two ester linkages, at least four urethane linkages further from the center of the compound compared to the ester linkages, and at least one terminal isocyanate group for each urethane linkage, which isocyanate group may be blocked. The compound can be prepared by first reaction a polyol compound having at least two hydroxyl groups with a carboxylic acid compound having one carboxylic acid group and at least two hydroxyl groups to form a hydroxyl-functional ester product. The hydroxyl-functional ester products is then reacted with a polyisocyanate compound in which the isocyanate groups have different reactivities. The reaction with the polyisocyanate compound is carried out under conditions so that only one of the isocyanate groups is substantially reactive with the hydroxyl groups of the ester product of the first stage. Because each of the isocyanate is monofunctional under the reaction conditions, the product avoids building viscosity. In this way, the highly-functional isocyanate can be used for in a coating composition as a crosslimker without the increase in viscosity experienced with polyisocyanate crosslinkers of the prior art.

公开(公告)号：EP1525279A1

公开(公告)日：2005-04-27

申请号：EP03731602.3

申请日：2003-06-06

Applicant: BASF CORPORATION

Inventor： RAMESH, Swaminathan ,  GREEN, Marvin

IPC: C09D201/02

CPC classification number: B01F17/005 ,  C01P2004/61 ,  C01P2006/22 ,  C08G63/42 ,  C08G63/58 ,  C08G63/664 ,  C08G63/6854 ,  C09B67/009 ,  C09C1/3676 ,  C09C3/08 ,  C09C3/10 ,  C09D167/04 ,  C09D201/005 ,  C09D201/025

Abstract: The present invention is directed to a polyester resin for use in a coating composition. The polyester resin is the reaction product of a first compound comprising a plurality of hydroxyl groups, a lactone compound, a carboxylic acid anhydride, an epoxy compound having at least one epoxy group, and a carbamate compound. The present invention is also directed to a coating composition including the polyester resin and to a method of preparing the resin.

公开(公告)号：EP1343850A2

公开(公告)日：2003-09-17

申请号：EP01990647.8

申请日：2001-11-19

Applicant: BASF CORPORATION

Inventor： RAMESH, Swaminathan ,  LESSEK, Paul ,  HARRIS, Paul

IPC: C09D161/20

CPC classification number: C09D167/00 ,  C08G12/40 ,  C08G12/427 ,  C08L61/20 ,  C08L83/04 ,  C09D161/20 ,  C09D161/32 ,  C08L2666/02

Abstract: The present invention provides a crosslinker for organic coatings having an amino resin core with substituents including more than one olefin functional group, a silicon-containing group, and at least one alkoxyalkyl or alkylol group. Coating compositions containing the crosslinker can be cured with radiation, especially ultraviolet radiation. The crosslinker can be included in a coating composition with one or more curable resins, applied onto a substrate and cured to form the cured coating of the invention.