US 12,280,572 B2
Dual shell dental appliance and material constructions
Ray F. Stewart, Blairsden, CA (US); and John Lahlouh, San Jose, CA (US)
Assigned to Bay Materials, LLC, Fremont, CA (US)
Filed by Bay Materials, LLC, Fremont, CA (US)
Filed on May 15, 2024, as Appl. No. 18/665,398.
Application 18/665,398 is a continuation of application No. 18/061,056, filed on Dec. 2, 2022, granted, now 11,999,141.
Application 18/061,056 is a continuation of application No. 17/564,857, filed on Dec. 29, 2021, granted, now 11,541,643.
Application 17/564,857 is a continuation of application No. 17/221,216, filed on Apr. 2, 2021, granted, now 11,325,358, issued on May 10, 2022.
Application 17/221,216 is a continuation of application No. 17/092,763, filed on Nov. 9, 2020, granted, now 10,987,907, issued on Apr. 27, 2021.
Application 17/092,763 is a continuation of application No. 16/719,256, filed on Dec. 18, 2019, granted, now 10,870,263, issued on Dec. 22, 2020.
Application 16/719,256 is a continuation in part of application No. 16/211,176, filed on Dec. 5, 2018, granted, now 10,549,511, issued on Feb. 4, 2020.
Application 16/211,176 is a continuation in part of application No. PCT/US2018/035384, filed on May 31, 2018.
Claims priority of provisional application 62/590,627, filed on Nov. 26, 2017.
Claims priority of provisional application 62/512,786, filed on May 31, 2017.
Prior Publication US 2024/0300223 A1, Sep. 12, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. B32B 27/08 (2006.01); A61C 7/08 (2006.01); B32B 27/30 (2006.01); B32B 27/32 (2006.01); B32B 27/36 (2006.01); B32B 27/40 (2006.01)
CPC B32B 27/08 (2013.01) [A61C 7/08 (2013.01); B32B 27/302 (2013.01); B32B 27/32 (2013.01); B32B 27/36 (2013.01); B32B 27/40 (2013.01); B32B 2250/24 (2013.01); B32B 2307/536 (2013.01); B32B 2307/546 (2013.01); B32B 2535/00 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A polymeric sheet composition, comprising:
an elastomer layer comprising an elastomer material having a glass transition temperature and/or melting point of from 180° C. to 220° C., and a hardness of from A80 to D75;
a first thermoplastic polymer layer comprising a copolyester having a glass transition temperature and/or melting point of from 80° C. to 120° C., a flexural modulus of from about 1,000 MPa to about 2,100 MPa and a hardness of from R100 to R115; and
a second thermoplastic polymer layer comprising a copolyester,
wherein the elastomer layer is between the first thermoplastic polymer layer and the second thermoplastic polymer layer.