The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 24, 2000
Filed:
Nov. 16, 1999
Applicant:
Inventor:
Ronald James Hoxmeier, Houston, TX (US);
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J / ; C08J / ;
U.S. Cl.
CPC ...
521 61 ; 525106 ; 528 25 ; 521139 ; 521146 ; 521154 ;
Abstract
The present invention is a freeze-dried polystyrene-polysiloxane foam having a density of 0.05 to 0.8 grams per cubic centimeter and a void volume of 20 to 99 percent. These foams exhibit good compressibility and rebound and are useful in insulation and sound-deadening applications.