US 11,992,101 B2
Nucleated polypropylene resin for primary lens package
Oleg Grischenko, Jacksonville, FL (US); and Billy Boddiford, White Oak, TX (US)
Assigned to Johnson & Johnson Vision Care, Inc., Jacksonville, FL (US)
Filed by Johnson & Johnson Vision Care, Inc., Jacksonville, FL (US)
Filed on Jul. 31, 2020, as Appl. No. 16/944,204.
Prior Publication US 2022/0031033 A1, Feb. 3, 2022
Int. Cl. A45C 11/00 (2006.01); C08K 3/26 (2006.01); C08K 5/092 (2006.01); C08K 5/3492 (2006.01); C08K 5/52 (2006.01); C08L 23/12 (2006.01)
CPC A45C 11/005 (2013.01) [C08K 3/26 (2013.01); C08K 5/092 (2013.01); C08K 5/34924 (2013.01); C08K 5/52 (2013.01); C08L 23/12 (2013.01); C08K 2003/267 (2013.01); C08L 2201/08 (2013.01); C08L 2205/24 (2013.01)] 8 Claims
OG exemplary drawing
 
1. In combination:
a contact lens package comprising:
a nucleated polypropylene resin formed from a polypropylene base resin consisting of a polypropylene homopolymer, a primary stabilizer comprising tris(3,5-di-butyl-4-hydroxylbenzyl) isocyanurate, and a secondary stabilizer comprising tris-(2,4-di-t-butylphenyl) phosphite;
at least one nucleator comprising 1,2-cyclohexane dicarboxylic acid, calcium salt (1:1), (1R, 2S)-rel-; and
at least one catalyst acid scavenger;
wherein said nucleated polypropylene resin formed from a polypropylene base resin at greater than 99 weight %;
said at least one nucleator at less than 0.25 weight %; and
said at least one catalyst acid scavenger at less than 0.1 weight %, and
a contact lens contained in said package.