Peter H Markusch

6352661, Mar 5, 2002

Aug 17, 1999

09/375963

James A. Thompson - Moon Township PA
Ashok M. Sarpeshkar - Upper St. Clair PA
James W. Rosthauser - Pittsburgh PA
Peter H. Markusch - McMurray PA

Bayer Corporation - Pittsburgh PA

B32B 516

264109, 264122, 156 622

The present invention relates to a process for producing lignocellulose composite materials by combining lignocellulose particles with a binder composition, followed by molding or compressing the combined lignocellulose particles and binder composition. Suitable binder compositions comprise a polymethylene poly(phenylisocyanate) component and a liquid hydrophobic diluent that is characterized by a flash point of at least 250Â F.

6355721, Mar 12, 2002

Dec 3, 1999

09/453677

Richard S. Pantone - New Martinsville WV
Peter H. Markusch - McMurray PA

Bayer Coporation - Pittsburgh PA

C08J 300

524590, 524198, 524199, 524589, 528 44, 528 69

This invention relates to high molecular weight liquid, non-migrating, non-functional polyether polyurethane plasticizers. These plasticizers comprise the reaction product of an isocyanate-terminated polyether prepolymer having an NCO group content of less than 13% and a monofunctional alcohol having a molecular weight of about 32 to about 1,000 and an OH number of about 56 to about 1750. The isocyanate-terminated polyether prepolymers comprise the reaction product of a diisocyanate and at least one polyether polyol. The present invention also relates to a process for the production of the liquid, non-migrating, non-functional polyether polyurethane plasticizers. This invention also relates to a process for the production of a polyurethane product comprising reacting at least one polyisocyanate component with at least one isocyanate-reactive component, in the presence of these high molecular weight liquid, non-migrating, non-functional polyether polyurethane plasticizers, and to the resultant polyurethane products of this process.

6358296, Mar 19, 2002

Jul 11, 2000

09/613680

Peter H. Markusch - McMurray PA
Robert L. Cline - Paden City WV
Ashok M. Sarpeshkar - Upper St. Clair PA

Bayer Corporation - Pittsburgh PA

C05G 500

71 6407, 71 6411

This invention relates to polyurethane encapsulated fertilizer particles which exhibit slow-release properties and to a process for their production. The process comprises (1) applying an isocyanate-reactive component or a polyisocyanate component to fertilizer particles, to form coated fertilizer particles, followed by (2) applying a polyisocyanate component or an isocyanate-reactive component onto the coated fertilizer particles to form polyurethane encapsulated fertilizer particles, and, optionally, repeating these steps as many times as necessary to form the polyurethane encapsulated fertilizer particles that contain about 2 to 20% by weight of polyurethane, based on the total weight of the encapsulated fertilizer particles. Alternatively, the isocyanate-reactive component and the polyisocyanate component can be premixed prior to being applied to the fertilizer particles to form polyurethane encapsulated fertilizer particles. Suitable isocyanate-reactive components comprise oleo polyols.

6364925, Apr 2, 2002

Dec 10, 1999

09/458818

Peter H. Markusch - McMurray PA
Robert L. Cline - Paden City WV
Ashok M. Sarpeshkar - Upper St. Clair PA
Robert P. Yeater - Moundsville WV

Bayer Corporation - Pittsburgh PA

C05G 500

71 6407, 71 6411

The present invention relates to polyurethane encapsulated fertilizer particles which exhibit slow-release properties and to a process for their production. The process comprises applying an isocyanate-reactive component to fertilizer particles, to form fertilizer particles coated with an isocyanate-reactive component, applying a polyisocyanate component onto the coated fertilizer particles to form polyurethane encapsulated fertilizer particles, and, optionally, repeating these steps as many times as necessary to form the polyurethane encapsulated fertilizer particles that contain about 2 to 20% by weight of polyurethane, based on the total weight of the encapsulated fertilizer particles. Suitable isocyanate-reactive components include polyesterether polyols that comprise either a blend of or the reaction product of (i) castor oil having an OH number of about 160 to about 170, a viscosity of about 500 to about 900 mPa. s at 25Â C. , and a water content of less than 0.

6384130, May 7, 2002

Dec 3, 1999

09/453970

Richard S. Pantone - New Martinsville WV
Peter H. Markusch - McMurray PA

Bayer Corporation - Pittsburgh PA

C08J 300

524590, 524198, 524199, 524589, 528 44, 528 69

This invention relates to liquid, hydrophobic, non-migrating, non-functional polyurethane plasticizers. These plasticizers comprise the reaction product of an isocyanate-terminated prepolymer and a monofunctional alcohol having a molecular weight of about 32 to about 1,000. The isocyanate-terminated prepolymers comprise the reaction product of a diisocyanate and at least one hydrophobic polyol. The present invention also relates to a process for the production of the liquid, hydrophobic, non-migrating, non-functional polyurethane plasticizers. This invention also relates to a process for the production of a polyurethane product comprising reacting at least one polyisocyanate component with at least one isocyanate-reactive component, in the presence of these liquid, hydrophobic, non-migrating, non-functional polyurethane plasticizers, and to the resultant polyurethane products of this process.

6403702, Jun 11, 2002

Dec 3, 1999

09/453678

Peter H. Markusch - McMurray PA
Richard S. Pantone - New Martinsville WV

Bayer Corporation - Pittsburgh PA

C08J 300

524590, 524198, 524199, 524589, 524591, 524839, 524840, 528 44, 528 69

This invention relates to a process for the preparation of one-shot polyurethane cast elastomers containing liquid, diurethane non-migrating plasticizers. This process comprises reacting via the one-shot process an organic diisocyanate, an isocyanate-reactive component, and at least one crosslinking agent in the presence of a liquid, diurethane plasticizer.

6482913, Nov 19, 2002

Feb 7, 2000

09/499316

Peter H. Markusch - McMurray PA
Richard S. Pantone - New Martinsville WV
Ralf Guether - Pittsburgh PA
William E. Slack - Moundsville WV

Bayer Aktiengesellschaft - Leverkusen

C08G 1870

528 67, 25218222, 521160

This invention relates to liquid polyisocyanate compositions having improved freeze stability. These liquid polyisocyanate compositions have an NCO group content of 15 to 30%, and comprise (A) an allophanate-modified MDI and having an NCO group content of 16 to 32. 5%, (B) a low molecular weight branched aliphatic dihydroxy compound, and (C) an epoxide functional compound which is present in an amount of 0. 01 to 1% by weight, based on the combined weight of components (A) and (B).

6503288, Jan 7, 2003

Dec 30, 1996

08/777427

Peter H. Markusch - McMurray PA

Bayer Corporation - Pittsburgh PA

C05G 500

71 6407, 71 6411

This invention relates to a process for the preparation of polyurethane encapsulated fertilizer particles. This process comprises applying an isocyanate-reactive component to fertilizer particles, and applying an aliphatic polyisocyanate to fertilizer particles in separate steps to form polyurethane encapsulated fertilizer particles. The two reactants may be applied in either order, with the polyisocyanate being first or last. These two steps may optionally be repeated as many times, as necessary to yield polyurethane encapsulated fertilizer particles which contain from 0. 5 to 15% by weight of polyurethane, based on the total weight of the encapsulated fertilizer particles. It is also possible to mix the isocyanate-reactive component and the polyisocyanate together to form a mixture which is then applied to the fertilizer particles. These polyurethane coatings which encapsulates the fertilizer particles are biodegradable.