logo

For the Inventor, By the Inventor

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.:

US 11065796 B1

PDFFull Text
Date of Patent:
Jul. 20, 2021

Filed:

Sep. 24, 2018

System and method for continuously manufacturing cured membranes

Applicant:

Firestone Building Products Co., Llc, Nashville, TN (US);

Inventors:

Bruce Douglas, Zionsville, IN (US);

Michael Hubbard, Murfreesboro, TN (US);

Hao Wang, Carmel, IN (US);

Assignee:

Firestone Building Products Company, LLC, Nashville, TN (US);

Attorneys:

Renner, Kenner

Arthur M. Reginelli

Primary Examiner:

Stella K Yi

Int. Cl.
CPC ...
B29C 48/08 (2019.01); B29C 48/39 (2019.01); B29C 48/385 (2019.01); B29C 48/535 (2019.01); E04D 5/06 (2006.01); C08J 5/18 (2006.01); B29C 43/22 (2006.01); B29C 35/10 (2006.01); B29B 7/48 (2006.01); B29B 7/82 (2006.01); B29B 7/74 (2006.01); B29C 48/44 (2019.01); B29C 48/40 (2019.01); B29C 48/41 (2019.01); B29D 7/01 (2006.01); B29K 21/00 (2006.01); B29C 35/04 (2006.01); B29C 35/08 (2006.01); B29K 19/00 (2006.01); B29L 7/00 (2006.01);
U.S. Cl.
CPC ...
B29C 48/08 (2019.02); B29B 7/485 (2013.01); B29B 7/487 (2013.01); B29B 7/7495 (2013.01); B29B 7/826 (2013.01); B29C 35/10 (2013.01); B29C 43/22 (2013.01); B29C 48/385 (2019.02); B29C 48/39 (2019.02); B29C 48/40 (2019.02); B29C 48/41 (2019.02); B29C 48/44 (2019.02); B29C 48/535 (2019.02); B29D 7/01 (2013.01); C08J 5/18 (2013.01); E04D 5/06 (2013.01); B29C 35/045 (2013.01); B29C 2035/0822 (2013.01); B29C 2035/0827 (2013.01); B29C 2035/0877 (2013.01); B29K 2019/00 (2013.01); B29K 2021/00 (2013.01); B29L 2007/008 (2013.01); C08J 2323/16 (2013.01);
Abstract

A method of continuously manufacturing a cured membrane includes continuously compounding and mixing a vulcanizable rubber composition in a mixing extruder while continuously removing gasses from the vulcanizable rubber composition during mixing with a vacuum. The vulcanizable rubber composition may be continuously extruded to form an extrudate, which may be continuously calendered to form a green membrane. The green membrane may be continuously cured, such as by a hot air conveyor curing system, to form a cured membrane.

Find Patent Forward Citations

Loading…