Terrell D Wayt

6572031, Jun 3, 2003

Jul 27, 2001

09/917298

Jack H. Hunter - Coraopolis PA
Terrell Dean Wayt - Moundsville WV

Bayer Corporation - Pittsburgh PA

A62C 502

239290, 239291, 239296, 239 8

The present invention relates to air-assisted, low pressure spray equipment having an improved spray nozzle including 1) a caulking gun having a carriage adapted to receive two or more cartridges having a nozzle, 2) a static mixer having an upstream end and a downstream end wherein a) the upstream end has an inlet port for receiving a liquid component from the nozzle of each cartridge and the upstream end is dimensioned to be reversibly connected to the cartridges of the caulking gun, and b) the downstream end has an optionally removable spray tip for introducing the mixed liquid components into an atomizing zone and the downstream end is dimensioned for reversibly connecting the static mixer to a spray section, and 3) a spray section having an upstream end and a downstream end wherein a) the upstream end of the spray section is dimensioned for being reversibly connecting to the static mixer, b) the spray section has inlet ports for receiving pressurized air and c) the downstream end of the spray section has outlet ports for introducing air into an atomizing zone formed between the outlet ports and the spray tip, wherein the spray tip of the static mixer passes through an orifice in the spray section such that the mixed liquid components are introduced into the atomizing zone. The present invention also relates to a process for spraying a one- or two-component composition with the air-assisted, low pressure spray equipment.

6672519, Jan 6, 2004

Jul 27, 2001

09/917309

Jack H. Hunter - Coraopolis PA
Terrell Dean Wayt - Moundsville WV

Bayer Polymers LLC - Pittsburgh PA

B05B 128

239290, 239288, 239294, 239600, 2221455, 2221456

Air-assisted, low pressure spray equipment having an improved spray nozzle including a caulking gun having a carriage adapted to receive cartridges having a nozzle, rams mounted on the caulking gun for engaging each cartridge to dispense a liquid from the nozzle, a trigger mechanism for advancing the rams into operative engagement with each cartridge; a static mixer having an inlet port for receiving a liquid component from the nozzle of each cartridge and having an optional spray tip for introducing the mixed liquid components into an atomizing zone; a static mixer shroud encasing the static mixer and an optional spray section having inlet ports for receiving pressurized air and outlet ports for introducing air into the atomizing zone. The spray tip passes through an orifice in the spray section such that the mixed liquid components are introduced into the atomizing zone. The equipment is useful for spraying a two-component composition.

6774206, Aug 10, 2004

Sep 26, 2002

10/255388

Karsten Danielmeier - Bethel Park PA
Catherine M. Britsch - Pittsburgh PA
Rolf Gertzmann - Leverkusen, DE
Michele E. Vargo - Pittsburgh PA
Terrell D. Wayt - Moundsville WV
Edward P. Squiller - Bridgeville PA

Bayer Polymers LLC - Pittsburgh PA
Bayer Aktiengesellschaft - Leverkusen

C08G 7300

528328, 528 44, 528 60, 528 61, 528 64, 528 68, 528 76, 528272, 528288, 525411, 525419, 525420

The present invention relates to polyaspartates corresponding to the formula wherein X represents the residue obtained by removing the amino groups from a polyether polyamine having a functionality of n and a number average molecular weight of less than 600, wherein the amino groups are attached to primary carbon atoms and the ether groups are separated by at least two carbon atoms, R and R are identical or different and represent organic groups which are inert to isocyanate groups at a temperature of 100Â C. or less, R and R are identical or different and represent hydrogen or organic groups which are inert towards isocyanate groups at a temperature of 100Â C. or less and n is 2 to 4. The present invention also relates to polyureas prepared by reacting the polyaspartates and optionally other isocyanate-reactive compounds with polyisocyanates.

6774207, Aug 10, 2004

Sep 26, 2002

10/256179

Karsten Danielmeier - Bethel Park PA
Catherine M. Britsch - Pittsburgh PA
Rolf Gertzmann - Leverkusen, DE
Michele E. Vargo - Pittsburgh PA
Terrell Dean Wayt - Moundsville WV
Edward P. Squiller - Bridgeville PA
Richard R. Roesler - Wexford PA

Bayer Polymers LLC - Pittsburgh PA
Bayer Aktiengesellschaft - Leverkusen

C08G 7300

528328, 528 44, 528 60, 528 61, 528 68, 528 76, 528272, 528288, 525411, 525419, 525420

The present invention relates to polyaspartate mixtures containing a) 5 to 70 equiv. %, based on the total equivalents of aspartate groups, of a cyclic polyaspartate corresponding to the formula wherein X represents the residue obtained by removing the amino groups from a cyclic polyamine having a functionality of n, R and R are identical or different and represent organic groups which are inert to isocyanate groups at a temperature of 100Â C. or less, R and R are identical or different and represent hydrogen or organic groups which are inert towards isocyanate groups at a temperature of 100Â C. or less and n is 2 to 4, and b) 30 to 95 equiv. %, based on the total equivalents of aspartate groups, of a polyether polyaspartate corresponding to the formula I wherein X represents the residue obtained by removing the amino groups from a polyether polyamine having a functionality of n and a number average molecular weight of less than 600, wherein the amino groups are attached to primary carbon atoms and the ether groups are separated by at least two carbon atoms. The present invention also relates to a process for preparing these polyaspartate mixtures and to the polyureas prepared by reacting the polyaspartate mixtures and optionally other isocyanate-reactive compounds with polyisocyanates.

6790925, Sep 14, 2004

Dec 5, 2002

10/310313

Karsten Danielmeier - Solingen-Burg, DE
Catherine M. Britsch - Pittsburgh PA
Rolf Gertzmann - Leverkusen, DE
Michele E. Vargo - Pittsburgh PA
Terrell D. Wayt - Moundsville WV
Edward P. Squiller - Bridgeville PA
Richard R. Roesler - Wexford PA

Bayer Polymers LLC - Pittsburg PA
Bayer Aktiengesellschaft - Leverkusen

C08G 1850

528 68, 25218228, 528 76, 528 80, 528332, 528335, 528342, 528345, 528392, 560171

The present invention relates to polyaspartate mixtures containing a) 5 to 50 equiv. %, based on the total equivalents of aspartate groups, of a polyoxypropylene polyaspartate corresponding to the formula wherein X represents the residue obtained by removing the amino groups from a polyoxypropylene polyamine having a functionality of n, R and R are identical or different and represent organic groups which are inert to isocyanate groups at a temperature of 100Â C. or less, R and R are identical or different and represent hydrogen or organic groups which are inert towards isocyanate groups at a temperature of 100Â C. or less and n is 2 to 4, and b) 50 to 95 equiv. %, based on the total equivalents of aspartate groups, of a polyether polyaspartate corresponding to the formula I wherein X represents the residue obtained by removing the amino groups from a polyether polyamine having a functionality of n and a number average molecular weight of less than 5000, wherein the amino groups are attached to primary carbon atoms and the ether groups are separated by at least two carbon atoms. The present invention also relates to a process for preparing these polyaspartate mixtures and to the polyureas prepared by reacting the polyaspartate mixtures and optionally other isocyanate-reactive compounds with polyisocyanates.

6911501, Jun 28, 2005

Jan 21, 2004

10/761643

Karsten Danielmeier - Sollingen-Burg, DE
Charles A. Gambino - McDonald PA, US
Rolf Gertzmann - Leverkusen, DE
Richard R. Roesler - Wexford PA, US
Terrell D. Wayt - Moundsville WV, US
Michele E. Vargo - Pittsburgh PA, US
Edward P. Squiller - Bridgeville PA, US
Karen M. Henderson - Coraopolis PA, US

Bayer MaterialScience LLC - Pittsburgh PA
Bayer MaterialScience AG - Leverkusen

C08F283/04
C08G073/10

525422, 528310, 528335, 528338, 528339, 528340, 528422, 525420, 525421, 525424, 525540

The present invention relates to novel aspartates, their method of production and the use of these aspartates as reactive components for polyisocyanates in two-component polyurethane coating compositions and for preparing polyurethane prepolymers. The aspartates are prepared by first reacting a di- or polyamine with an unsaturated ester and then reacting the resultant product with a maleimide.

6984715, Jan 10, 2006

Oct 3, 2003

10/678491

Richard R. Roesler - Wexford PA, US
Douglas A. Wicks - Hattiesburg MS, US
Terrell Dean Wayt - Moundsville WV, US
Brian Long - Clarington OH, US
Karsten Danielmeier - Leverkusen, DE
Charles A. Gambino - McDonald PA, US

Bayer MaterialScience LLC - Pittsburgh PA

C08G 69/26
C08G 63/08

528332, 528335, 528354, 528491, 528503

The present invention relates to novel aspartates, their method of production and the use of these mono and polyaspartates as reactive components for polyisocyanates in two-component polyurethane coating compositions and for preparing polyurethane prepolymers.

7307140, Dec 11, 2007

Nov 16, 2004

10/990082

Karsten Danielmeier - Solingen-burg, DE
Charles A. Gambino - McDonald PA, US
Rolf Gertzmann - Leverkusen, DE
Richard R. Roesler - Wexford PA, US
Terrell D. Wayt - Moundsville WV, US
Edward P. Squiller - Bridgeville PA, US
Michele E. Honko - Pittsburgh PA, US
Karen Marie Henderson - Coraopolis PA, US

Bayer MaterialScience LLC - Pittsburgh PA

C08F 73/10
C08F 283/04

528310, 528322, 528328, 525420, 525421, 525422, 525424, 525540

The present invention relates to novel polyaspartimides, their method of production and the use of these polyaspartimides as reactive components for polyisocyanates in two-component polyurethane coating compositions. The polyaspartimides are prepared by reacting a polyether amine with a maleimide.