发明授权
- 专利标题: High modulus nonconductive adhesive useful for installing vehicle windows
- 专利标题(中): 用于安装车窗的高模量非导电粘合剂
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申请号: US11961614申请日: 2007-12-20
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公开(公告)号: US07615167B2公开(公告)日: 2009-11-10
- 发明人: Lirong Zhou
- 申请人: Lirong Zhou
- 申请人地址: US MI Midland
- 专利权人: Dow Global Technologies, Inc.
- 当前专利权人: Dow Global Technologies, Inc.
- 当前专利权人地址: US MI Midland
- 主分类号: H01B1/00
- IPC分类号: H01B1/00 ; H01B1/04 ; H01B1/24 ; B60J1/00 ; C09J4/00 ; C08G18/28 ; C08G18/10 ; C08G18/30
摘要:
The invention is a composition comprising a) one or more isocyanate functional polyether based prepolymers containing one or more organic based polymers dispersed therein; b) one or more isocyanate functional polyester based prepolymers which is solid at 23° C.; c) one or more polyisocyanates having a nominal functionality of about 3 or greater; d) one or more conductive carbon blacks in an amount such that the composition has a dielectric constant of about 15 or less; and e) one or more catalysts for the reaction of isocyanate moieties with hydroxyl groups, wherein the composition demonstrates upon cure a modulus of 2.0 MPa or greater at 25° C. measured according to ASTM D4065; a dielectric constant of about 15 or less; a sag of an uncured sample of less than 2 mm, a press flow viscosity of about 20 to about 50 and a storage modulus of about 5.3×105 Pa or greater.