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:
May. 30, 2017
Filed:
Aug. 14, 2014
Applicant:
Dow Global Technologies Llc, Midland, MI (US);
Inventors:
Rajat Duggal, Pearland, TX (US);
Subodh P. Jagtap, Lake Jackson, TX (US);
Assignee:
Dow Global Technologies LLC, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J 9/26 (2006.01); C08G 18/76 (2006.01); C08G 18/10 (2006.01); C08G 18/32 (2006.01); C08G 18/44 (2006.01); F04B 53/14 (2006.01); F04B 53/02 (2006.01); B29C 35/00 (2006.01); C08G 18/70 (2006.01); C09K 3/10 (2006.01); F16J 9/12 (2006.01); F16J 9/28 (2006.01); B29K 69/00 (2006.01);
U.S. Cl.
CPC ...
F16J 9/26 (2013.01); B29C 35/00 (2013.01); C08G 18/10 (2013.01); C08G 18/324 (2013.01); C08G 18/3206 (2013.01); C08G 18/44 (2013.01); C08G 18/708 (2013.01); C08G 18/7671 (2013.01); C09K 3/1021 (2013.01); F04B 53/02 (2013.01); F04B 53/14 (2013.01); F04B 53/143 (2013.01); F16J 9/12 (2013.01); F16J 9/28 (2013.01); B29K 2069/00 (2013.01); C08G 2190/00 (2013.01);
Abstract
A method for forming a piston seal of a hydraulic pump includes forming a reaction mixture that includes a prepolymer component, a polyol additive, a diol component, and a curative component, forming a sealing element with the reaction mixture and a mold, and curing the sealing element to form a piston seal of a hydraulic pump. The prepolymer component includes a polycarbonate-isocyanate prepolymer that is a reaction product of at least an isocyanate component and a polycarbonate polyol component.