Invention Grant
- Patent Title: Viscoelastic articles with polymer layer containing elastomer unevenly distributed
- Patent Title (中): 含有弹性体聚合物层的粘弹性体不均匀分布
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Application No.: US12734823Application Date: 2008-11-11
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Publication No.: US08501306B2Publication Date: 2013-08-06
- Inventor: Kunio Nagasaki , Yusuke Sugino , Kohei Doi
- Applicant: Kunio Nagasaki , Yusuke Sugino , Kohei Doi
- Applicant Address: JP Ibaraki-shi
- Assignee: Nitto Denko Corporation
- Current Assignee: Nitto Denko Corporation
- Current Assignee Address: JP Ibaraki-shi
- Agency: Edwards Wildman Palmer LLP
- Agent James E. Armstrong, IV
- Priority: JP2007-309987 20071130
- International Application: PCT/JP2008/070832 WO 20081111
- International Announcement: WO2009/069485 WO 20090604
- Main IPC: B32B7/02
- IPC: B32B7/02 ; B32B7/12 ; C08F2/46 ; B05D5/10

Abstract:
Provided is a viscoelastic article which exerts different properties between one surface and the other surface thereof, which has a transparent appearance, and which less causes staining of objects to which the viscoelastic article is adopted. The viscoelastic article is an article having a multilayer structure including a polymer layer, and a monomer-absorptive layer capable of absorbing at least one of monomer component(s) constituting the polymer, in which the polymer layer is a polymer layer containing an elastomer unevenly distributed and enriched at an interface, or in the vicinity thereof, opposite to the monomer-absorptive layer. The vicinity of the interface opposite to the monomer-absorptive layer is preferably a region ranging from the interface opposite to the other interface with the monomer-absorptive layer and occupying, in a thickness direction, 50% or less of the total thickness.
Public/Granted literature
- US20100304104A1 VISCOELASTIC ARTICLES WITH POLYMER LAYER CONTAINING ELASTOMER UNEVENLY DISTRIBUTED Public/Granted day:2010-12-02
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