MICHAEL J JOSEPH
Dentist in Ohio
License number
Pennsylvania DS011071L
Category
Dentistry
Type
Dentist
Address
Address
3
Ohio
Wheeling, WV 26003
Pennsylvania
Wheeling, WV 26003
Pennsylvania
Professional information
Michael K Joseph, Wheeling WV
Specialties:
Dentist
Address:
1144 Market St, Wheeling, WV 26003
Modified Pmdi For Faster Press Times Or Lower Press Temperatures And Reduction Of Mdi From Hot Presses
US Patent:
6022444, Feb 8, 2000
Filed:
Apr 8, 1994
Appl. No.:
8/225036
Inventors:
Karl W. Haider - New Martinsville WV
John W. Frink - Coraopolis PA
Heber D. Layton - Aliquippa PA
Peter H. Markusch - McMurray PA
James W. Rosthauser - Glendale WV
Bonnie L. Lawson - Glendale WV
Michael A. Joseph - Wheeling WV
John W. Frink - Coraopolis PA
Heber D. Layton - Aliquippa PA
Peter H. Markusch - McMurray PA
James W. Rosthauser - Glendale WV
Bonnie L. Lawson - Glendale WV
Michael A. Joseph - Wheeling WV
Assignee:
Bayer Corporation - Pittsburgh PA
International Classification:
C09J17504, C09J17508, C07C27128, C08G 1850
US Classification:
1563314
Abstract:
Isocyanate prepolymers which are useful as binders are made from a polyisocyanate mixture and a hydroxyl compound having at least about 1 hydroxyl group. The polyisocyanate mixture is made up of from about 50 to about 60% by weight of polyphenyl polymethylene polyisocyanate and from about 40 to about 50% by weight of an isomeric mixture of diphenylmethane diisocyanate (MDI). The isomeric mixture of MDI is made up of from about 4 to about 30% by weight of the 2,4'-isomer and from about 70 to about 96% by weight of the 4,4'-isomer. The binders of the present invention are advantageous in that they may be used in high moisture, low temperature conditions without a catalyst. Reduced MDI emissions are also achieved when the binders of the present invention are used to make composite materials.