Robert Paul Partin

US Patent:

42581699, Mar 24, 1981

Filed:

Mar 26, 1980

Appl. No.:

6/134219

Inventors:

Richard A. Prather - Houston TX
David L. Williams - Houston TX
Robert M. Partin - Friendswood TX
Warren J. Rabourn - Deer Park TX

Assignee:

The Upjohn Company - Kalamazoo MI

International Classification:

C08G 1828

US Classification:

528 72

Abstract:

A process is disclosed for the preparation of liquid, storage-stable, polyisocyanate compositions containing a release agent formed in situ which compositions are useful, for example, as binder resins in the formation of particle boards which latter, because of the presence of the release agent, show no tendency to adhere to the face of metal platens used in their formation. The process comprises heating an organic polyisocyanate (polymethylene polyphenyl polyisocyanate preferred) with an acid phosphate (e. g. a mixture of mono- and di-alkyl acid phosphates) under conditions controlled as to time and temperature so as to yield a product which is storage stable and shows no tendency to deposit solid or to separate into two liquid phases.

US Patent:

RE317039, Oct 9, 1984

Filed:

Aug 2, 1982

Appl. No.:

6/404415

Inventors:

Richard A. Prather - Houston TX
David L. Williams - Houston TX
Robert M. Partin - Friendswood TX
Warren J. Rabourn - late of Deer Park TX

Assignee:

The Upjohn Company - Kalamazoo MI

International Classification:

B29J 500
C08G 1838
C08G 1877

US Classification:

264109

Abstract:

A process is disclosed for the preparation of liquid, storage-stable, polyisocyanate compositions containing a release agent formed in situ which compositions are useful, for example, as binder resins in the formation of particle boards which latter, because of the presence of the release agent, show no tendency to adhere to the face of metal platens used in their formation. The process comprises heating an organic polyisocyanate (polymethylene polyphenyl polyisocyanate preferred) with an acid phosphate (e. g. a mixture of mono- and di-alkyl acid phosphates) under conditions controlled as to time and temperature so as to yield a product which is storage stable and shows no tendency to deposit solid or to separate into two liquid phases.

Address:

17403 Adina Spg Ln, Houston, TX 77095

VIN:

5N1AA08A67N703058

Make:

NISSAN

Model:

ARMADA

Year:

2007