公开(公告)号：US3851761A

公开(公告)日：1974-12-03

申请号：US29290572

申请日：1972-09-28

Applicant: NASHUA CORP

Inventor： SCHWARCZ A

IPC: C08G18/08 ,  C08G18/32 ,  C08G18/34 ,  C09J7/02

CPC classification number: C08G18/0823 ,  C08G18/3228 ,  C08G18/348 ,  C09J7/201 ,  C09J7/21 ,  C09J7/22 ,  C09J7/38 ,  C09J2201/606 ,  C09J2475/005 ,  Y10S428/906 ,  Y10S528/905 ,  Y10T428/2839 ,  Y10T428/2848 ,  Y10T428/31786 ,  Y10T428/31971

Abstract: Release agents are provided which comprise the polymeric reaction product of a fatty diamine with a diisocyanate and, optionally, a diol. These polyurea and polycarbamate products have the following recurring formula:

WHEREIN A is an alkylene radical containing about two to six carbon atoms, B is an arylene radical containing about 6 to 16 carbon atoms, D is an aliphatic organic radical containing about two to six carbon atoms, R is an alkyl radical containing about 12 to 25 carbon atoms, R'' is hydrogen or an alkyl radical containing about one to 25 carbon atoms, a and b represent the number of recurring units and the ratio of b/a varies from 0 to 2, and c is 0, 1 or 2. Also provided are pressure sensitive adhesive tapes and release liners utilizing these novel release agents.

Abstract translation: 提供了包含脂肪二胺与二异氰酸酯和任选的二醇的聚合反应产物的脱模剂。 这些聚脲和聚氨酯产品具有以下重复公式：