	US 11,834,565 B2
	Shape memory products and method for making them
Sreeni Kurup, Wiltshire (GB)
Assigned to Tyco Electronics UK Ltd., Swindown (GB)
Filed by Tyco Electronics UK Ltd., Wiltshire (GB)
Filed on Oct. 5, 2021, as Appl. No. 17/494,393.
Application 17/494,393 is a division of application No. 15/272,604, filed on Sep. 22, 2016, abandoned.
Application 15/272,604 is a continuation of application No. PCT/GB2014/050916, filed on Mar. 24, 2014.
Prior Publication US 2022/0025148 A1, Jan. 27, 2022
Int. Cl. C08J 9/32 (2006.01); B29C 35/08 (2006.01); C08J 9/00 (2006.01); B29C 44/42 (2006.01); B29C 44/34 (2006.01); B29K 105/04 (2006.01); B29K 105/00 (2006.01); B29K 223/00 (2006.01); B29K 23/00 (2006.01); B29K 105/24 (2006.01)

CPC C08J 9/32 (2013.01) [B29C 35/0805 (2013.01); B29C 44/3415 (2013.01); B29C 44/42 (2013.01); C08J 9/0023 (2013.01); C08J 9/0061 (2013.01); C08J 9/0095 (2013.01); B29C 2035/0877 (2013.01); B29K 2023/0641 (2013.01); B29K 2023/083 (2013.01); B29K 2105/0026 (2013.01); B29K 2105/0076 (2013.01); B29K 2105/048 (2013.01); B29K 2105/24 (2013.01); B29K 2223/083 (2013.01); B29K 2995/0002 (2013.01); B29K 2995/0015 (2013.01); B29K 2995/0077 (2013.01); C08J 2201/026 (2013.01); C08J 2203/22 (2013.01); C08J 2323/06 (2013.01); C08J 2423/08 (2013.01)]

20 Claims

1. A method for producing a shape memory product comprising the steps of:

melt mixing a polymer composition containing a polyethylene polymer, an organic peroxide crosslinking agent, and a micro-encapsulated foaming agent uniformly dispensed therein, the foaming agent having a peak activation temperature which is higher than a temperature of the melt mixing;

injection molding the polymer composition into a molded product, the injection molding carried out at the peak activation temperature to activate the micro-encapsulated foaming agent; and

crosslinking the molded product within a mold.