基本信息:
- 专利标题： Cohesively Failing, Non-Staining Hot Melt Adhesives
- 专利标题（中）：凝结失效，不污染热熔胶
- 申请号：US14789727 申请日：2015-07-01
- 公开(公告)号：US20160002508A1 公开(公告)日：2016-01-07
- 发明人： Monina D. Kanderski , Michael D. Vitrano
- 申请人： Bostik, Inc.
- 申请人地址： US WI Wauwatosa
- 专利权人： BOSTIK, INC.
- 当前专利权人： BOSTIK, INC.
- 当前专利权人地址： US WI Wauwatosa
- 主分类号： C09J153/00
- IPC分类号： C09J153/00 ; B42D15/00 ; B42D15/04 ; C09J7/04
摘要：
A non-pressure sensitive hot melt adhesive for use in mailer applications uses a styrenic block copolymer (SBC) with a hydrogenated mid-block as the primary polymer in the composition. The adhesive contains about 10% to about 50% by weight of the SBC, about 2% to about 30% by weight of a polyolefin polymer as a secondary polymer in the composition, about 10% to about 70% by weight of a suitable plasticizer, about 0% to about 30% by weight of a wax, about 0% to about 50% by weight of one or more tackifying resins, about 0.1% to about 4% by weight of a stabilizer, and about 0% to about 3% by weight of auxiliary additives, so that the viscosity of the composition is equal to or less than about 10,000 cP at 163° C. The formulation balances the cohesive and adhesive strength required to insure the adhesive fails cohesively to prevent paper tear. In addition, the presence of the secondary polymer allows additional oil absorption into the polymer, thus preventing oil from staining the substrates or surfaces without significantly increasing the viscosity.
摘要（中）：
用于邮寄应用的非压敏热熔粘合剂使用具有氢化中间嵌段的苯乙烯嵌段共聚物（SBC）作为组合物中的主要聚合物。 粘合剂包含约10重量％至约50重量％的SBC，约2重量％至约30重量％的作为组合物中的第二聚合物的聚烯烃聚合物，约10重量％至约70重量％的合适的增塑剂 ，约0％至约30％重量的蜡，约0％至约50％重量的一种或多种增粘树脂，约0.1％至约4％重量的稳定剂和约0％至约3％ 重量的辅助添加剂，使得组合物的粘度在163℃下等于或小于约10000cP。制剂平衡了粘合剂失效所需的内聚力和粘合强度，从而防止纸张撕裂。 此外，二次聚合物的存在允许另外的油吸收到聚合物中，从而防止油污染基底或表面而不显着增加粘度。
公开/授权文献:
- US10081212B2 Cohesively failing, non-staining hot melt adhesives 公开/授权日：2018-09-25