| 发明名称 |
Polyester-Based, Pressure Sensitive Adhesive |
| 摘要 |
A pressure sensitive adhesive (PSA) comprising:
(A) 50 to 99 weight percent (wt %) of a partially aromatic polyester comprising at least two hydroxyl groups per polymer chain and having a:
(1) Storage modulus of >0.33 Megapascals (MPa) at 23° C.,(2) Mn of 20,000 to 200,000 grams per mole (g/mol), and(3) Glass transition (Tg) temperature of −60° C. to 20° C.;(B) 1 to 40 wt % of at least one of a plasticizer or tackifier; and(C) 0.1 to 10 wt % of a crosslinker with a functionality of >2.5;
with the provisos that the PSA has a:
(i) Tg of −60° C. to 10° C.;(ii) Storage modulus of <0.33 MPa at 23° C.;(iii) Rubbery plateau in excess of its Tg; and(iv) Melt flow in excess of 70° C. |
| 申请公布号 |
US2014275379(A1) |
申请公布日期 |
2014.09.18 |
| 申请号 |
US201313833228 |
申请日期 |
2013.03.15 |
| 申请人 |
BRADY WORLDWIDE, INC. |
发明人 |
Schmitt Andrew L.;Welander Adam |
| 分类号 |
C09J167/03 |
主分类号 |
C09J167/03 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A pressure sensitive adhesive (PSA) comprising:
(A) 50 to 99 weight percent (wt %) of a partially aromatic polyester comprising at least two hydroxyl groups per polymer chain and having a:
(1) Storage modulus of >0.33 Megapascals (MPa) at 23° C.,(2) Mn of 20,000 to 200,000 grams per mole (g/mol), and(3) Glass transition (Tg) temperature of −60° C. to 20° C.; (B) 1 to 40 wt % of at least one of a plasticizer or tackifier; and (C) 0.1 to 10 wt % of a crosslinker with a functionality of >2.5;with the provisos that the PSA has a:
(i) (Tg of −60° C. to 10° C.; (ii) Storage modulus of <0.33 MPa at 23° C.; (iii) Rubbery plateau in excess of its Tg; and (iv) Melt flow in excess of 70° C. |
| 地址 |
Milwaukee WI US |
