公开(公告)号：US20170283659A1

公开(公告)日：2017-10-05

申请号：US15630192

申请日：2017-06-22

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： STEFFEN TRASER ,  BERND KUEHNEWEG ,  CHRISTIAN CLAUS ,  JAN D. FORSTER

IPC: C09J5/08 ,  B32B37/24 ,  F03D1/06 ,  C09J7/02

CPC classification number: F03D1/0675 ,  B32B37/24 ,  C09J5/08 ,  C09J7/20 ,  C09J7/385 ,  C09J2201/28 ,  C09J2201/36 ,  C09J2475/006 ,  Y02E10/721 ,  Y10T156/10 ,  Y10T428/24496 ,  Y10T428/24521 ,  Y10T428/24612

Abstract: A multilayer protective tape (1) for rotor blades of wind energy turbines said tape (1) having a protective top layer (2) comprising a polymer film and an adhesive bottom layer (3), wherein the top layer (2) has a continuous surface (S) that is outwardly curved or outwardly trapezoidal surface such that the tape (1) has a cross-sectional profile having an inner section between two lateral sections and wherein the inner section has a thickness (T1) made up by the thickness of the top layer (2) and adhesive bottom layer (3) that is greater than the thickness of at least one of the lateral sections (T1,T2) made up by the thickness of the top layer (2) and adhesive bottom layer (3) and wherein the thickness (T1 or T2) of at least one lateral section is at most 600 μm and the thickness of the inner section (T1) is at least 330 μm.Also provided are processes for making profiled tapes and methods for applying the tapes to rotor blades and blades containing protective tapes.