US 6,160,058 AGranted

Curable coating compositions containing blends of carbamate-functional compounds

AssigneeBASF SE

InventorsWalter H. Ohrbom, Gregory G. Menovcik, Donald L. St. Aubin, John E. Boisseau, John W. Rehfuss

Life of this patent

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Abstract

The present invention provides a curable coating composition that includes at least three components. The coating composition includes a component (a) that includes one or both of a compound (a)(1) having at least one carbamate group or terminal urea group according to the invention and having at least two linking groups that are urethane or urea or a compound (a)(2) having at least two groups selected from carbamate groups, terminal urea groups, or combinations of the two and at least four urethane or urea linking groups. The second component (b) of the coating composition includes an acrylic polymer comprising active hydrogen-containing functional groups reactive with the third component(c). Component (c) of the coating composition is a curing agent that is reactive with the first two components. Preparation of coated articles using the compositions of the invention is also disclosed.

Claims37

Dependent claims

A curable coating composition, comprising

(a) a component selected from the group consisting of:
(1) a compound having at least one carbamate group or urea group that is prepared by a step of reacting a mixture comprising:
(A) a compound comprising a carbamate or urea group or a group that can be converted to a carbamate or urea group and a group that is reactive with (a)(1)(B) and
(B) a polyisocyanate,
(2) a compound having at least one carbamate group or urea group that is prepared by a step of reacting a mixture comprising:
(A) a compound comprising a carbamate or urea group or a group that can be converted to a carbamate or urea group and an isocyanate group and
(B) a compound having at least two groups reactive with isocyanate functionality,
and mixtures thereof;
(b) an acrylic polymer comprising active hydrogen-containing functional groups that are reactive with component (c), and
(c) a curing agent that is reactive with compound (a) and compound (b),
wherein said carbamate group has a structure ##STR13## in which R is H or alkyl, and further wherein said urea group has a structure ##STR14## in which R' and R" are each independently H or alkyl, or R' and R" together form a heterocyclic ring structure.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 09/184,196Filed 2 Nov 1998 · continuation in part
Priority: 28 Jul 1993
Granted: 12 Dec 2000
Term ends: Not estimatedThe source records don’t support an estimate.

Classification38 codes

C09D 201/025
Characterised by the presence of specified groups , e.g. terminal or pendant functional groups: containing nitrogen atoms
C07D 251/34
Only oxygen atoms: cyanuric or isocyanuric esters
C08F 8/30
Chemical modification by after-treatment: introducing nitrogen atoms or nitrogen-containing groups
C08G 12/40
Of aldehydes: chemically modified polycondensates

Family

Serial098,177Parent of this continuation-in-part · filed 28 Jul 1993
Serial176,608Parent of this continuation-in-part · filed 3 Jan 1994
Serial287,351Parent of this continuation-in-part · filed 8 Aug 1994
Serial333,917Parent of this continuation-in-part · filed 3 Nov 1994
Serial333,804Parent of this continuation-in-part · filed 3 Nov 1994
Serial361,344Parent of this division · filed 21 Dec 1994
Serial513,587Parent of this continuation · filed 10 Aug 1995
Serial540,274Parent of this continuation · filed 6 Oct 1995
Serial550,880Parent of this continuation · filed 6 Oct 1995
Serial686,929Parent of this continuation · filed 6 Oct 1995
Serial540,277Parent of this continuation · filed 6 Oct 1995
Serial540,279Parent of this continuation · filed 6 Oct 1995
Serial540,275Parent of this continuation · filed 19 Oct 1995
Serial547,513Parent of this continuation-in-part · filed 24 Oct 1995
Serial547,174Parent of this continuation-in-part · filed 24 Oct 1995
Serial667,261Parent of this continuation-in-part · filed 20 Jun 1996
Serial698,529Parent of this continuation · filed 15 Aug 1996
Serial698,524Parent of this continuation-in-part · filed 15 Aug 1996
Serial698,526Parent of this continuation-in-part · filed 15 Aug 1996
Serial698,528Parent of this continuation-in-part · filed 15 Aug 1996
Serial698,522Parent of this continuation-in-part · filed 15 Aug 1996
Serial698,523Parent of this continuation-in-part · filed 15 Aug 1996
Serial831,810Parent of this continuation-in-part · filed 2 Apr 1997
Serial867,547Parent of this continuation-in-part · filed 2 Jun 1997
Serial886,321Parent of this continuation-in-part · filed 1 Jul 1997
Serial997,317Parent of this continuation-in-part · filed 23 Dec 1997
US 5,723,552 AParent of this continuation-in-part · filed 3 Mar 1998
US 5,726,244 AParent of this continuation · filed 10 Mar 1998
US 5,726,274 AParent of this continuation-in-part · filed 10 Mar 1998
US 5,744,550 AParent of this continuation-in-part · filed 28 Apr 1998
US 5,756,213 AParent of this continuation-in-part · filed 26 May 1998
US 5,760,127 AParent of this continuation-in-part · filed 2 Jun 1998
US 5,770,650 AParent of this continuation-in-part · filed 23 Jun 1998
US 5,777,048 AParent of this continuation-in-part · filed 7 Jul 1998
US 5,792,810 AParent of this continuation-in-part · filed 11 Aug 1998
US 5,994,479 AParent of this continuation-in-part
US 5,872,195 AParent of this continuation-in-part
US 5,854,385 AParent of this continuation
US 5,827,930 AParent of this continuation-in-part
US 6,160,058 AThis patent

From the US filing history. Foreign family members aren’t listed.