US 11,993,691 B2
Use of geopolymeric additive in combination with non-brominated flame retardant in polymer foams
Filip Lukasz Kondratowicz, Cracow (PL); and Kamil Utrata, Cwiklice (PL)
Assigned to SYNTHOS S.A., Oswiecim (PL)
Filed by SYNTHOS S.A., Oswiecim (PL)
Filed on Jul. 29, 2022, as Appl. No. 17/877,183.
Application 17/877,183 is a continuation of application No. 16/319,182, abandoned, previously published as PCT/EP2017/068390, filed on Jul. 20, 2017.
Claims priority of application No. 16461541 (EP), filed on Jul. 20, 2016.
Prior Publication US 2023/0052386 A1, Feb. 16, 2023
Int. Cl. C04B 28/00 (2006.01); C08J 9/00 (2006.01); C08J 9/14 (2006.01); C08J 9/16 (2006.01); C08J 9/18 (2006.01); C08J 9/228 (2006.01); C08K 3/32 (2006.01); C08K 3/34 (2006.01); C08K 5/5397 (2006.01); C04B 103/63 (2006.01); C04B 111/28 (2006.01)
CPC C08J 9/18 (2013.01) [C04B 28/006 (2013.01); C08J 9/0038 (2013.01); C08J 9/0066 (2013.01); C08J 9/0095 (2013.01); C08J 9/141 (2013.01); C08J 9/16 (2013.01); C08J 9/228 (2013.01); C08K 3/32 (2013.01); C08K 3/34 (2013.01); C08K 5/5397 (2013.01); C04B 2103/63 (2013.01); C04B 2111/28 (2013.01); C08J 2201/03 (2013.01); C08J 2203/14 (2013.01); C08J 2203/182 (2013.01); C08J 2203/22 (2013.01); C08J 2325/04 (2013.01); C08J 2325/06 (2013.01); C08J 2325/08 (2013.01); C08K 2003/323 (2013.01); C08K 2003/329 (2013.01); C08K 2201/005 (2013.01); C08K 2201/006 (2013.01); Y02P 40/10 (2015.11)] 22 Claims
OG exemplary drawing
 
1. A process for the production of expandable polymer granulate by an extrusion or a suspension process, the process comprising the addition of
i) one or more geopolymer additives, wherein the geopolymer additive is
a) a geopolymer;
b) a combination of a geopolymer with an athermanous additive; or
c) a geopolymer composite derived from geopolymer and comprising athermanous additive,
and
ii) one or more non-brominated flame retardants selected from
a) phosphorus-based flame retardants,
b) nitrogen-based flame retardants, and
c) phosphorus/nitrogen-based flame retardants;
wherein the polymer is a vinyl aromatic polymer, and
wherein the geopolymer or geopolymer composite has a particle size in the range of 0.1 μm to 200 μm.