Invention Application
- Patent Title: ASSEMBLY OF TIMEPIECE PARTS ASSEMBLED USING REPOSITIONABLE HOT MELT ADHESIVE AND PROCESS FOR ASSEMBLING AND REPOSITIONING SUCH PARTS
-
Application No.: US15371436Application Date: 2016-12-07
-
Publication No.: US20170174941A1Publication Date: 2017-06-22
- Inventor: Claire RANNOUX , Maria FERNANDEZ CIURLEO
- Applicant: The Swatch Group Research and Development Ltd
- Applicant Address: CH Marin
- Assignee: The Swatch Group Research and Development Ltd
- Current Assignee: The Swatch Group Research and Development Ltd
- Current Assignee Address: CH Marin
- Priority: EP15201235.7 20151218
- Main IPC: C09J5/04
- IPC: C09J5/04 ; B32B7/12 ; G04B37/22 ; C09J5/06

Abstract:
An assembly of timepiece parts assembled together with an adhesive at a temperature TA and to be repositioned when the adhesive is at a temperature TC. The adhesive includes a formulation, which at TC includes a mixture of polymer chains with pendant diene units X and coupling molecules including two dienophile end groups Y, wherein the X units and the Y groups are arranged to react with one another and to bond together with the Diels-Alder reaction at a temperature TDA and to regenerate with the retro-Diels-Alder reaction at a temperature TRDA, at TA forms a three-dimensional network, in which the polymer chains are linked to one another by the coupling molecules with the Diels-Alder reaction, where TA
Public/Granted literature
Information query
IPC分类: