US 12,076,888 B2
Stabilized compositions and process for producing same
Joseph Kozakiewicz, Trumbull, CT (US); Jerry Mon Hei Eng, Wilton, CT (US); Ram B. Gupta, Stamford, CT (US); David Vanzin, Franklin, TN (US); and Shailesh Majmudar, Stamford, CT (US)
Assigned to Cytec Industries Inc., Princeton, NJ (US)
Filed by CYTEC INDUSTRIES INC., Princeton, NJ (US)
Filed on Mar. 31, 2021, as Appl. No. 17/219,638.
Application 17/219,638 is a division of application No. 15/748,861, granted, now 10,974,417, previously published as PCT/US2016/044721, filed on Jul. 29, 2016.
Claims priority of provisional application 62/199,265, filed on Jul. 31, 2015.
Prior Publication US 2022/0048218 A1, Feb. 17, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B29B 9/06 (2006.01); B29B 9/12 (2006.01); C08J 3/12 (2006.01); C08J 3/22 (2006.01); C08K 5/13 (2006.01); C08K 5/3435 (2006.01); C08K 5/46 (2006.01); C08K 9/10 (2006.01); C08L 23/06 (2006.01); C08L 23/12 (2006.01); C08L 23/14 (2006.01); C08L 25/06 (2006.01); C08L 25/12 (2006.01); C08L 33/26 (2006.01); B29B 9/14 (2006.01); B29B 9/16 (2006.01)
CPC B29B 9/06 (2013.01) [B29B 9/12 (2013.01); C08J 3/126 (2013.01); C08J 3/226 (2013.01); C08K 5/13 (2013.01); C08K 5/3435 (2013.01); C08K 5/46 (2013.01); C08K 9/10 (2013.01); C08L 23/06 (2013.01); C08L 23/12 (2013.01); C08L 23/14 (2013.01); C08L 25/06 (2013.01); C08L 25/12 (2013.01); C08L 33/26 (2013.01); B29B 9/14 (2013.01); B29B 2009/166 (2013.01); C08J 2400/22 (2013.01); C08L 2310/00 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A stabilized composition comprising:
an organic material to be stabilized; and
a stabilizing amount of a resin masterbatch system provided as closed end pellets, said pellets comprising:
a core material comprising a stabilizing amount of at least one stabilizer additive selected from the group consisting of a hindered amine light stabilizers (HALS), an organic phosphite or phosphonite, a hindered phenol, a chromane, an ultraviolet light (UV) absorber, a hindered benzoate, a hydroxylamine, a tertiary amine oxide, and a free radical polymerization inhibitor; and
an outer layer comprising a thermoplastic polymer, wherein the outer layer has a thickness from 0.001 mm to 1 cm, and wherein the outer layer is co-extruded with and encapsulates said core material such that the pellets are sealed at each end and are leak free,
wherein the core material is solid, semi-solid, waxy, or liquid at 25° C., and is from 0.01 wt. % to 65 wt. %, based on a total weight of the stabilized composition; and
wherein the thermoplastic polymer of the outer layer is compatible with the organic material to be stabilized.