Adhesive article, composite article, and methods of making the same

• US 7,560,166 B2
• Filed: 12/28/2005
• Issued: 07/14/2009
• Est. Priority Date: 12/28/2005
• Status: Expired due to Fees

• Current Assignee: 3M Innovative Properties Company (3M Company)
• Original Assignee: 3M Innovative Properties Company (3M Company)
• Inventors: Melancon, Kurt C., Moore, George G. I., Jing, Naiyong, Filiatrault, Timothy D., Sherman, Audrey A., Clark, John C., Muggli, Mark W.
• Primary Examiner(s): PENG, KUO LIANG
• Application Number:
  US11/275,355
• Publication Number:
  US 20070148473A1
• Time in Patent Office: 1,294 Days
• Field of Search: 428/447, 525/474, 528/28
• US Class Current: 428/447
• CPC Class Codes: B32B 2270/00 Resin or rubber layer containing a blend of at least two different polymers
• CPC Class Codes: B32B 2307/748 Releasability
• CPC Class Codes: B32B 2405/00 Adhesive articles, e.g. adhesive tapes labels B32B2519/00
• CPC Class Codes: B32B 27/08 of synthetic resin
• CPC Class Codes: B32B 27/283 comprising polysiloxanes
• CPC Class Codes: B32B 27/304 comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
• CPC Class Codes: B32B 27/322 comprising halogenated polyolefins, e.g. PTFE
• CPC Class Codes: B32B 27/42 comprising condensation resins of aldehydes, e.g. with phenols, ureas or melamines
• CPC Class Codes: B32B 7/06 permitting easy separation
• CPC Class Codes: C08G 77/458 containing polyurethane sequences
• CPC Class Codes: C08L 83/00 Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
• CPC Class Codes: C09J 183/04 Polysiloxanes
• CPC Class Codes: C09J 183/10 Block or graft copolymers containing polysiloxane sequences obtained by polymerising a compound having a carbon-to-carbon double bond on to a polysiloxane C09J151/08, C09J153/00
• CPC Class Codes: C09J 2301/414 presence of a copolymer
• CPC Class Codes: C09J 2427/006 in the substrate
• CPC Class Codes: C09J 2475/00 Presence of polyurethane
• CPC Class Codes: C09J 2483/00 Presence of polysiloxane
• CPC Class Codes: C09J 7/22 Plastics; Metallised plastics
• CPC Class Codes: C09J 7/38 Pressure-sensitive adhesives [PSA]
• CPC Class Codes: Y10T 428/2852 Adhesive compositions
• CPC Class Codes: Y10T 428/31663 : As siloxane, silicone or silane

Abstract

An adhesive article comprising a fluorothermoplastic film having a major surface; and a pressure sensitive adhesive layer adhered to at least a portion of the first major surface, wherein the pressure sensitive adhesive comprises a silicone polyurea block copolymer and an MQ tackifying resin. Composite articles preparable from the adhesive articles, and methods of making the same are also disclosed.

Claims

1. An adhesive article comprising:

a fluorothermoplastic film having a interior portion and a major surface; and

a pressure sensitive adhesive layer adhered to at least a portion of the major surface, wherein the pressure sensitive adhesive comprises a silicone polyurea block copolymer and an MQ tackifying resin, and wherein the silicone polyurea block copolymer comprises n blocks represented by the formula

2. A method of making an adhesive article, the method comprising adhering a pressure sensitive adhesive layer to at least a portion of a major surface of a fluorothermoplastic film, wherein the pressure sensitive adhesive comprises a silicone polyurea block copolymer and an MQ tackifying resin, wherein the pressure sensitive adhesive comprises a silicone polyurea block copolymer and an MQ tackifying resin, and wherein the silicone polyurea block copolymer comprises n blocks represented by the formula