公开(公告)号：US5141989A

公开(公告)日：1992-08-25

申请号：US624397

申请日：1990-12-07

申请人： Dieter Jung ,  Katharina J. Bischof nee Mitrowsky ,  Kai Grimmel ,  Robert R. L. Smolders

发明人： Dieter Jung ,  Katharina J. Bischof nee Mitrowsky ,  Kai Grimmel ,  Robert R. L. Smolders

IPC分类号： C09J133/02 ,  C09J7/02 ,  C09J133/04 ,  C09J133/06 ,  C09J133/10

CPC分类号： C09J7/0217 ,  C09J133/064 ,  C09J2201/606 ,  Y10T428/2809 ,  Y10T428/2891

摘要： Screen-printable acrylate pressure-sensitive adhesive composition suitable for adhesive products having simultaneously, and independently from temperature, high values of adhesion, peel strength and shear strength as well as a high water and humidity resistance, comprising(A) about 25 to 225 parts by weight of at least one dissolved inherently tacky pressure-sensitive adhesive selected from non-crosslinked (meth)acrylic ester/(meth)acrylic acid copolymers having an average molecular weight corresponding to an inherent viscosity of not more than 1.0 dl/g; and(B) 100 parts by weight of an organic solvent or solvent mixture having a low partial vapor pressure of less than about 3 kPa (30 mbar) at 20.degree. C. and a dipole amount of at least 1.0 Debye. The acrylate copolymer preferably has structural units of the formula ##STR1## wherein R.sup.1 and R.sup.2 independently are hydrogen or lower alkyl having 1 to 4 carbon atoms; R.sup.3 is hydrogen, a lower alkyl group having 1 to 4 carbon atoms and a cyano group; and R.sup.4 is hydrogen or an alkyl group having 1 to 14 carbon atoms, n is the average degree of polymerization, subject to R.sup.4 being a hydrogen atom in at least 5 weight % of the total monomer units, one of groups R.sup.1 and R.sup.2 optionally being carboxyl of the formula --C(.dbd.O)--OR.sup.4 and R.sup.3 optionally being a methylene carboxyl group having the formula --CH.sub.2 --C(.dbd.O)--OR.sup.4.