Santokh Singh Labana, 886778 Old College Rd, Lisle, IL 60532

4065518, Dec 27, 1977

Feb 18, 1976

5/659175

Santokh S. Labana - Dearborn Heights MI
Ares N. Theodore - Farmington MI

Ford Motor Company - Dearborn MI

C08L 6310

260836

Powder coating compositions are disclosed which comprise a blend of coreactable, thermosettable copolymers one of which has at least two different functional groups while the other is qualitatively monofunctional and quantitatively polyfunctional. Ordinarily, the polymer having at least two different functional groups, will be quantitatively polyfunctional and qualitatively difunctional although it may contain more than two different functional groups. In the preferred embodiments, the first or difunctional copolymer of the blend has either (1) epoxy functionality and amide functionality, (2) epoxy functionality and hydroxy functionality, (3) carboxy functionality and amide functionality, or (4) carboxy functionality and hydroxy functionality and is crosslinkable with the second copolymer through at least two different types of functional groups on the first copolymer. The second copolymer has only one type of functionality that is crosslinkable with the functional groups on the first copolymer and may be termed the monofunctional copolymer although it is quantitatively polyfunctional. The second copolymer may have as its functionality (1) anhydride functionality, (2) carboxy functionality or (3) epoxy functionality.

4091049, May 23, 1978

Dec 18, 1973

5/425745

Santokh S. Labana - Dearborn Heights MI
Yun-Feng Chang - Plymouth MI

Ford Motor Company - Dearborn MI

C08L 6300

260836

Powder coating compositions are disclosed which, exclusive of pigments and other nonreactive components, comprise a coreactive mixture of: (A) a copolymer of between about 8 and about 30 weight percent of a glycidyl ester of a monoethylenically unsaturated acid and between about 92 and about 70 weight percent of other monoethylenically unsaturated monomers, said copolymer having a glass transition temperature in the range of 40. degree. C to 90. degree. C and a number average molecular weight (M. sub. n) in the range of about 2500 to about 8500; and (B) a carboxyl terminated crosslinking agent in the amount of 0. 8 to 1. 2 carboxyl groups for each epoxy group in the copolymer.

3998905, Dec 21, 1976

Feb 18, 1976

5/659179

Santokh S. Labana - Dearborn Heights MI
Ares N. Theodore - Farmington MI

Ford Motor Company - Dearborn MI

C08L 6310

260836

Powder coating compositions are disclosed which comprise a blend of coreactable, thermosettable copolymers one of which has at least two different functional groups while the other is qualitatively monofunctional and quantitatively polyfunctional. Ordinarily, the polymer having at least two different functional groups, will be quantitatively polyfunctional and qualitatively difunctional although it may contain more than two different functional groups. In the preferred embodiments, the first or difunctional copolymer of the blend has either (1) epoxy functionality and amide functionality, (2) epoxy functionality and hydroxy functionality, (3) carboxy functionality and amide functionality, or (4) carboxy functionality and hydroxy functionality and is crosslinkable with the second copolymer through at least two different types of functional groups on the first copolymer. The second copolymer has only one type of functionality that is crosslinkable with the functional groups on the first copolymer and may be termed the monofunctional copolymer although it is quantitatively polyfunctional. The second copolymer may have as its functionality (1) anhydride functionality, (2) carboxy functionality or (3) epoxy functionality.

3959404, May 25, 1976

Dec 18, 1973

5/425742

Santokh S. Labana - Dearborn Heights MI
Ares N. Theodore - Farmington MI

Ford Motor Company - Dearborn MI

C08L 6300

260830TW

Powder coating compositions are disclosed which, exclusive of pigments and non-reactive components, comprise a coreactive mixture of: (A) a copolymer of between about 8 and about 30 weight percent of a glycidyl ester of a monoethylenically unsaturated acid and between about 92 and about 70 weight percent of other monoethylenically unsaturated monomers, said copolymer having a glass transition temperature in the range of 40. degree. to 90. degree. C and a number average molecular weight (M. sub. n) of between about 2500 and about 8500; and (B) a phenolic hydroxy terminated compound in the amount of between about 0. 8 and 1. 2 phenolic hydroxy groups for each epoxy group in the copolymer.

RE31077, Nov 9, 1982

Apr 7, 1976

5/674463

Santokh S. Labana - Dearborn Heights MI
Ares N. Theodore - Farmington MI

Ford Motor Company - Dearborn MI

C08F 846

5253273

Improved powder paint compositions are disclosed which comprise a particulate mixture of (1) a qualitatively difunctional copolymer of about 5 to about 20 weight percent of a glycidyl ester of a monoethylenically unsaturated acid, about 2 to about 10 weight percent of C. sub. 5 -C. sub. 7 hydroxyalkyl acrylates and/or C. sub. 5 -C. sub. 7 hydroxyalkyl methacrylates, and about 70 to about 93 weight percent monoethylenically unsaturated monomers consisting essentially of monofunctional monomers selected from the group consisting of esters of a C. sub. 1 -C. sub. 8 monohydric alcohol and acrylic acid, esters of a C. sub. 1 -C. sub. 8 monohydric alcohol and methacrylic acid and C. sub. 8 -C. sub. 12 monovinyl hydrocarbons, (2) a C. sub. 4 -C. sub. 20 saturated, straight chain, aliphatic dicarboxylic acid which is present in an amount that provides about 0.

4002699, Jan 11, 1977

Nov 25, 1974

5/526546

Santokh S. Labana - Dearborn Heights MI
Yun Feng Chang - Plymouth MI

Ford Motor Company - Dearborn MI

C08L 3304
C08L 6120

260851

Powder coating compositions are disclosed which, exclusive of pigments and other nonreactant components comprise a coreactive mixture of: (A) a copolymer of between about 5 and about 20 weight percent of a hydroxy bearing monomer and between about 95 and about 80 weight percent of other monoethylenically unsaturated monomers, said copolymer having a glass transition temperature in the range of about 40. degree. C to about 90. degree. C and a number average molecular weight (M. sub. n) of between about 2,000 and about 10,000; an amino crosslinking agent, said crosslinking agent being present in an amount of from about 0. 8 to about 1. 1 crosslinkable functional groups for each hydroxy group in the copolymer; and a polymeric flow control agent in an amount ranging from about 0. 05 to 4. 0 weight percent based on the total composition.

4085260, Apr 18, 1978

May 10, 1977

5/795587

Santokh S. Labana - Dearborn Heights MI
Yun Feng Chang - Plymouth MI

Ford Motor Company - Dearborn MI

C08F26504
C08G 6312

526 16

Powder coating compositions are disclosed which, exclusive of pigments and other nonreactant components comprise a coreactive mixture of: (A) a copolymer of between about 5 and about 20 weight percent of a hydroxy bearing monomer and between about 95 and about 80 weight percent of other monoethylenically unsaturated monomers, said copolymer having a glass transition temperature in the range of about 40. degree. C to about 90. degree. C and a number average molecular weight (M. sub. n) of between about 2000 and about 10,000; and an organic di- or poly-carboxylic acid or di- or poly-carboxylic acid anhydride crosslinking agent, said crosslinking agent being present in an amount of from about 0. 8 to about 1. 1 crosslinkable functional groups for each hydroxy group in the copolymer.

4359554, Nov 16, 1982

Feb 24, 1975

5/552676

Santokh S. Labana - Dearborn Heights MI
Ares N. Theodore - Farmington MI

Ford Motor Company - Dearborn MI

C08F 846

525386

Improved powder coating compositions are disclosed which comprise a particulate mixture of (1) a qualitatively difunctional copolymer of about 5 to about 20 weight percent of a glycidyl ester of a monoethylenically unsaturated acid, about 2 to about 10 weight percent of a C. sub. 5 -C. sub. 7 hydroxyalkyl acrylates and C. sub. 5 -C. sub. 7 hydroxyalkyl methacrylates, and about 70 to about 93 weight percent monoethylenically unsaturated monomers consisting essentially of monofunctional monomers selected from the group consisting of esters of a C. sub. 1 -C. sub. 8 monohydric alcohol and acrylic acid, esters of a C. sub. 1 -C. sub. 8 monohydric alcohol and methacrylic acid and C. sub. 8 -C. sub. 12 monovinyl hydrocarbons, and (2) a crosslinking agent consisting of C. sub. 4 -C. sub. 20 saturated, straight chain, aliphatic, dicarboxylic acid, said crosslinking agent being present in an amount sufficient to provide about 0.