US 11,655,346 B2
Adjustable CTE polymer compositions for extrusion and additive manufacturing processes
Aubrey Gerald Jackson, Costa Mesa, CA (US); Zachary Ian Skelton, Laguna Hills, CA (US); Philip Lunn, Warwick (GB); and Guy Rene Schindler, Huntington Beach, CA (US)
Assigned to AIRTECH INTERNATIONAL, INC., Huntington Beach, CA (US)
Filed by Airtech International, Inc., Huntington Beach, CA (US)
Filed on Aug. 3, 2020, as Appl. No. 16/984,029.
Claims priority of provisional application 62/882,425, filed on Aug. 2, 2019.
Claims priority of provisional application 62/882,423, filed on Aug. 2, 2019.
Prior Publication US 2021/0032418 A1, Feb. 4, 2021
Int. Cl. B29C 48/92 (2019.01); C08J 5/04 (2006.01); B29C 48/00 (2019.01); B29C 48/03 (2019.01); B29C 64/118 (2017.01); B33Y 70/10 (2020.01); B33Y 80/00 (2015.01); B29C 71/02 (2006.01); B29K 101/00 (2006.01); B29K 509/08 (2006.01); B29K 507/04 (2006.01); C08K 3/28 (2006.01); C08K 3/22 (2006.01); C08K 3/34 (2006.01)
CPC C08J 5/042 (2013.01) [B29C 48/0021 (2019.02); B29C 48/022 (2019.02); B29C 48/03 (2019.02); B29C 48/92 (2019.02); B29C 64/118 (2017.08); B29C 71/02 (2013.01); B33Y 70/10 (2020.01); B33Y 80/00 (2014.12); B29K 2101/00 (2013.01); B29K 2507/04 (2013.01); B29K 2509/08 (2013.01); C08K 3/28 (2013.01); C08K 3/34 (2013.01); C08K 2003/2258 (2013.01); C08K 2201/005 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of making a composite part, the method comprising:
additively manufacturing or extruding a polymer composition to form a tool, the polymer composition comprising a polymer matrix and a negative thermal expansion (NTE) additive, and a volume of the NTE additive in the polymer composition being configured to yield the tool having a first coefficient of thermal expansion (CTE);
applying a composite part composition or composite part laminate on or to the tool, the composite part composition or composite part laminate being configured to yield the composite part having a second CTE that is generally matched to the first CTE of the tool; and
exposing the tool to sufficient heat to cure the composite part composition or composite part laminate to yield the composite part having the second CTE that is generally matched to the first CTE of the tool.