公开(公告)号：EP2928980A4

公开(公告)日：2016-08-17

申请号：EP13863181

申请日：2013-12-04

Applicant: HONEYWELL INT INC

Inventor： HAN JEFFREY ,  WANG WEI JUN ,  ZHANG HONSHENG ,  HUANG NEO

IPC: C09K5/06 ,  H01L31/042

CPC classification number: H01L31/048 ,  C08F20/32 ,  C08F210/02 ,  C08F2220/325 ,  C08G81/025 ,  H01L31/049 ,  H02S40/42 ,  Y02E10/50

Abstract: The present invention relates to phase change materials (PCMs) which may be used with photovoltaic (PV) modules. More specifically, solid/solid PCMs having a polyolefin backbone polymer and a crystallizable side chain are provided. Preferably, the solid/solid PCM has a copolymer backbone having a polyolefin repeating unit, and the crystallizable side chains are grafted onto the copolymer backbone. Most preferably, the copolymer is poly(ethylene-co-glycidyl methacrylate) (PE-co-GMA), and polyethylene glycol (PEG) is the crystallizable side chain. Photovoltaic modules and backsheets for photovoltaic modules having solid/solid PCMs are also provided.