US 7,321,013 B2 | ||
Method for obtaining coating compositions having reduced VOC | ||
Walter H. Ohrbom, Hartland Township, Mich. (US); Marvin L. Green, Brighton, Mich. (US); and Gregory G. Menovcik, Farmington Hills, Mich. (US) | ||
Assigned to BASF Corporation, Southfield, Mich. (US) | ||
Filed on Jun. 11, 2004, as Appl. No. 10/866,596. | ||
Application 10/351079 is a division of application No. 09/741511, filed on Dec. 19, 2000, granted, now 6,541,594. | ||
Application 10/866596 is a continuation in part of application No. 10/351079, filed on Jan. 23, 2003, granted, now 6,962,730. | ||
Prior Publication US 2004/0236034 A1, Nov. 25, 2004 | ||
Int. Cl. C08L 67/00 (2006.01); C08G 18/00 (2006.01) |
U.S. Cl. 525—418 [524/714; 524/736; 526/317.1; 526/320; 526/328; 528/45] | 32 Claims |
1. A method of making a polymer, comprising
providing a mixture (I) comprising a reactant mixture (a) and a solvent mixture (b) comprising a nonvolatile solvent (bnv), wherein reactant mixture (a) comprises one or more polymerizable components and wherein nonvolatile solvent (bnv): (i) is not a crystalline solid at 25° C., (ii) is nonvolatile, and (iii) comprises at least one functional group (F1) and (iv) is a fluid solid,
subjecting the reactant mixture (a) to polymerization conditions sufficient to polymerize reactant mixture (a) to provide
a polymer (a′), and
subjecting the nonvolatile solvent (bnv) to reaction conditions wherein the at least one functional group (F1) of nonvolatile solvent (bnv) is reacted with at least one reactant (e) to provide a nonvolatile solvent (b′nv) comprising at least two functional groups (F2),
the method producing a mixture (II) comprising the polymer (a′) in the nonvolatile solvent (b′nv) comprising at least two functional groups (F2), wherein the at least one functional group (F1) is substantially nonreactive: (1) with the components of reactive mixture (a), (2) under the polymerization conditions in
which reactant mixture (a) is polymerized, and (3) with polymer (a′).
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