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.

Date of Patent:
Sep. 12, 2017

Filed:

Mar. 29, 2016
Applicant:

Kraton Polymers U.s. Llc, Houston, TX (US);

Inventors:

Arie Willem Van Der Waal, Ammerstol, NL;

Marcus Juergen Greger, Houston, TX (US);

Assignee:

Kraton Polymers U.S. LLC, Houston, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 9/00 (2006.01); B29C 45/77 (2006.01); B29C 45/00 (2006.01); B29C 45/18 (2006.01); B29C 45/73 (2006.01); B29C 45/78 (2006.01); C08L 7/00 (2006.01); C08K 3/00 (2006.01);
U.S. Cl.
CPC ...
C08L 9/00 (2013.01); B29C 45/0001 (2013.01); B29C 45/18 (2013.01); B29C 45/73 (2013.01); B29C 45/77 (2013.01); B29C 45/78 (2013.01); C08L 7/00 (2013.01); B29C 2045/1875 (2013.01); B29C 2945/76531 (2013.01); B29C 2945/76595 (2013.01); B29C 2945/76658 (2013.01); B29C 2945/76735 (2013.01); B29K 2995/0026 (2013.01); C08K 3/0016 (2013.01);
Abstract

The present disclosure provides a process for preparing a cured transparent rubber composition containing a synthetic isoprene polymer(s), a transparent polymer(s), a curing agent and additives. The process includes mixing the components at a temperature ranging from 50 to 130° C., curing the compound with peroxide and allowing the compound to mature. The maturated compound is fed to an injection molding machine. The cured transparent rubber composition prepared using the methods described herein has a haze of less than 30% and a total light transmission of more than 80%. The disclosure further provides an article including the cured transparent rubber composition, in particular for medical applications and artificial nipples.


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