US 10,889,046 B2
Dual color blow molding process
Matthew Scott Anderson, Clearfield, UT (US); and Mark Cole, Layton, UT (US)
Assigned to LIFETIME PRODUCTS, INC., Clearfield, UT (US)
Filed by Lifetime Products, Inc., Clearfield, UT (US)
Filed on Sep. 6, 2017, as Appl. No. 15/697,246.
Claims priority of provisional application 62/393,457, filed on Sep. 12, 2016.
Prior Publication US 2018/0071969 A1, Mar. 15, 2018
Int. Cl. B29C 49/04 (2006.01); B29B 17/00 (2006.01); B29C 49/22 (2006.01); B29K 105/26 (2006.01); B29K 23/00 (2006.01); B29L 31/30 (2006.01)
CPC B29C 49/041 (2013.01) [B29B 17/0005 (2013.01); B29C 49/22 (2013.01); B29K 2023/065 (2013.01); B29K 2105/26 (2013.01); B29K 2995/0021 (2013.01); B29L 2031/307 (2013.01)] 29 Claims
OG exemplary drawing
 
1. A method, comprising:
extruding plastic of a first color and plastic of a second color to form a parison comprising melted plastic, wherein the parison includes an inner layer comprising the plastic of the first color, and the parison also includes an outer layer comprising the plastic of the second color, and wherein during and/or after the extruding, the plastic of the first color blends together with the plastic of the second color so that a portion of the parison comprises a blend of the plastic of the first color and the plastic of the second color;
placing the parison in a mold; and
inflating the parison to create a blow molded structure.