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:
Aug. 25, 2020

Filed:

Nov. 22, 2017
Applicant:

Chestnut Springs Llc, Ridgefield, CT (US);

Inventors:

Randall Cher Liang Cha, Singapore, SG;

Sufan Siauw, Shatin, HK;

Ralph T. Webdale, Redding, CT (US);

Assignee:

Chestnut Springs LLC, Ridgefield, CT (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 21/04 (2006.01); C09K 21/10 (2006.01); C09K 21/02 (2006.01); C09K 21/14 (2006.01); C08K 3/32 (2006.01); C08L 1/02 (2006.01); C08L 3/02 (2006.01);
U.S. Cl.
CPC ...
C09K 21/04 (2013.01); C08K 3/32 (2013.01); C09K 21/02 (2013.01); C09K 21/10 (2013.01); C09K 21/14 (2013.01); C08K 2003/322 (2013.01); C08K 2003/323 (2013.01); C08L 1/02 (2013.01); C08L 3/02 (2013.01);
Abstract

This disclosure provides a composition comprising one or more substrate materials (e.g., polymers, rubbers, paper pulps, textiles, or polymer foams) and a flame retardant composition. The flame retardant composition includes at least one flame retardant salt (e.g., an ammonium salt of phosphoric acid such as water soluble ammonium polyphosphate), a nitrogen-containing compound (e.g., urea), and optionally water. This disclosure also provides a process for preparing the flame retardant composition, a process for imparting flame retardancy to a substrate material, and an intumescent process for forming an insulating protective layer on a substrate. This disclosure further provides fire retardant articles and processes for preparing fire retardant articles.


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