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US 12,163,071 B2Granted
Tie layer chemistry to promote bonding with silicone adhesive
Assignee3M Innovative Properties Company
InventorsJennifer N. Hanson, Kiu-Yuen Tse, Amanda C. Engler, Pamela A. Percha
Life of this patent
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Abstract
An adhesive article including a tie layer and a silicone adhesive is disclosed. The tie layer includes a segmented copolymer having a first segment that is one of (a) a polyether comprising one of PTMO or PEO/PPO or (b) a polysiloxane. The segmented copolymer has a water absorbency of less than about 13%.
Claims12
An adhesive article comprising:
- a tie layer;
- and
- a silicone adhesive,
- wherein the tie layer comprises a segmented copolymer having a first segment that is a polyether comprising poly(tetramethylene oxide) (PTMO) and a second segment comprising a polyester, and wherein the segmented copolymer has a water absorbency of less than about 13%.
1 more element
An adhesive article comprising:
- a silicone adhesive;
- and
- a tie layer;
- wherein the tie layer comprises a segmented copolymer having a first segment that is a polyether comprising poly(tetramethylene oxide) (PTMO) and a second segment comprising a polyester,
- wherein the tie layer comprises a segmented copolymer having a Tendotherm−Tg of at least about 52° C., and
- wherein the segmented copolymer comprises less than about 30% polyethylene oxide (PEO).
3 more elements
Dependencies are inferred from the claim text.