Patent ID: 9701093
Date: 2017-07-11
CPC Classifications: B29C,B29K,B32B,B62D,Y10T

Claim:
1. An activatable part comprising: a) an activatable material mass having a height (h), and including a base and an upper surface, the activatable material mass being generally tacky to the touch at room temperature; b) a handling layer disposed on the entire upper surface, the handling layer being a film which is generally tack free to the touch at room temperature and laminated onto the activatable material mass; c) a plurality of stress relief indentations having a depth (d) formed in the upper surface, the plurality of stress relief indentations including the handling layer, wherein each indentation extends over at least 50% of the width of the activatable material mass, and wherein the base is defined by a portion of the activatable material mass that lies below the indentations; wherein the activatable part is adapted to apply to a contoured surface of a substrate and remain in place along the contoured surface without pull back due to internal stress of the activatable part; wherein the activatable material mass is compressed to form the plurality of stress relief indentations; wherein the activatable material mass is a heat activatable, thermally expanding material; and wherein when the activatable material mass is activated the activatable part is adapted for providing baffling and/or structural reinforcement.