RICHARD BOLTON
Engineers in Saratoga, CA
License number
Pennsylvania PE018383E
Category
Engineers
Type
Professional Engineer
Address
Address
2
Saratoga, CA 95070
Pennsylvania
Pennsylvania
Professional information
Acoustic Scattering And High Reflection Loss Compositions
US Patent:
5114982, May 19, 1992
Filed:
Nov 20, 1989
Appl. No.:
7/438828
Inventors:
Morris A. Mendelsohn - Wilkins Twp., Allegheny County PA
Francis W. Navish - East Pittsburgh PA
Richard Bolton - Saratoga CA
Francis W. Navish - East Pittsburgh PA
Richard Bolton - Saratoga CA
Assignee:
Westinghouse Electric Corp. - Pittsburgh PA
International Classification:
C08J 916, C08G 1832, C08G 1848
US Classification:
521 59
Abstract:
An acoustic foam composition comprising (a) about 1 equivalent of a polybutadiene based polyol (b) about 2. 5 to 7. 5 equivalents of a diisocyante (c) or low molecular weight diol which gives a balanced stoichiometry and (d) about 1. 5 to 6% by weight based on the total weight of the composition of hollow polymeric microspheres. The composition may be prepared by a one-step system or a prepolymer system. The foam compositions of the present invention has excellent acoustic properties.
Sound Absorbing And Decoupling Syntactic Foam
US Patent:
5422380, Jun 6, 1995
Filed:
Jun 7, 1994
Appl. No.:
8/255859
Inventors:
Morris A. Mendelsohn - Wilkins Twp., Allegheny County PA
Richard Bolton - Saratoga CA
Francis W. Navish - East Pittsburgh PA
Richard Bolton - Saratoga CA
Francis W. Navish - East Pittsburgh PA
Assignee:
Westinghouse Electric Corporation - Pittsburgh PA
International Classification:
C08G 1800
US Classification:
521107
Abstract:
There is disclosed a sound-absorbing syntactic foam comprising expanded polystyrene microspheres, dispersed randomly in a polyurethane matrix.