US RE49,827 E1
Dry silicone gels and their methods of making
Stephane J. G. Berghmans, Sint-Pauwels (BE); Michael A. Oar, San Francisco, CA (US); Miguel A. Morales, Fremont, CA (US); Gary W. Adams, Holly Springs, NC (US); Anne-Marie Prins, Aarschot (BE); and Nathalie Hendrickx, Wilsele (BE)
Assigned to CommScope Connectivity Belgium BVBA, Kessel-Lo (BE); and CommScope Technologies LLC, Hickory, NC (US)
Filed by CommScope Connectivity Belgium BVBA, Kessel-Lo (BE); and CommScope Technologies LLC, Hickory, NC (US)
Filed on Feb. 23, 2021, as Appl. No. 17/183,033.
Application 13/164,294 is a continuation of application No. 16/263,324, filed on Jan. 31, 2019, granted, now RE48486.
Application 17/183,033 is a reissue of application No. 13/164,294, filed on Jun. 20, 2011, granted, now 9,556,336, issued on Jan. 31, 2017.
Application 16/263,324 is a reissue of application No. 13/164,294, filed on Jun. 20, 2011, granted, now 9,556,336, issued on Jan. 31, 2017.
This patent is subject to a terminal disclaimer.
Int. Cl. C08L 83/04 (2006.01); C08G 77/12 (2006.01); C08G 77/20 (2006.01)
CPC C08L 83/04 (2013.01) [C08G 77/12 (2013.01); C08G 77/20 (2013.01)] 23 Claims
 
[ 24. A method of making a silicone gel comprising:
providing a first set of components comprising: (1) a base polymer having a vinyl-silicone group, and (2) an addition cure catalyst;
providing a second set of components comprising: (1) a crosslinker having three or four Si-H groups, (2) a chain extender having two Si-H groups, and (3) additional base polymer having a vinyl-silicone group; and
mixing the first and second set of components together to form the silicone gel, wherein the silicone gel has a hardness between 100 g and 300 g, and a mole fraction of hydride present as crosslinker between 0.2 and 0.5, wherein the base polymer and additional base polymer are each a vinyl-terminated polydimethylsiloxane each having a molecular weight between 28,000 g/mol and 70,000 g/mol, and wherein the silicone gel exhibits less than 10% oil bleed out after being under compression of 1.2 atm for 200 hours at 60° C. ]