| 摘要 |
A contact adhesive based on (Co)-polymers of acrylic acid and/or methacrylic acid and/or their derivatives, with at least a two-phase domain structure and an outgassing value less than 10 microgram/g on the weight of contact adhesive measured by the Tesa method is new. Independent claims are included for: (1) synthesis of the contact adhesive from a polyacrylate solution obtained by radical polymerization, with addition of a carrier after polymerization, feeding of the polyacrylate solution and carrier into an extruder, where the polyacrylate solution is subjected to support-steam distillation (sic), a concentrated polyacrylate composition is obtained which is worked up from the melt, and the concentrated polyacrylate composition is deposited if necessary onto a support material; and (2) an adhesive strip ,especially for use in the electronics industry with a layer of contact adhesive composition on one or both sides of the support material. |
