초록 ▼

Organic compounds containing the structural element --N=C--S--S--C=N-- are suitable in dilute solution as activators for the accelerated hardening of cyanoacrylate adhesives. As compared with the known accelerators, they have the following advantage: good accelerating action, but they nevertheless p

Organic compounds containing the structural element --N=C--S--S--C=N-- are suitable in dilute solution as activators for the accelerated hardening of cyanoacrylate adhesives. As compared with the known accelerators, they have the following advantage: good accelerating action, but they nevertheless permit a long waiting time between application of the activator and application of the adhesive. In addition, they avoid spontaneous, merely superficial hardening.

대표청구항 ▼

Organic compounds containing the structural element --N=C--S--S--C=N-- are suitable in dilute solution as activators for the accelerated hardening of cyanoacrylate adhesives. As compared with the known accelerators, they have the following advantage: good accelerating action, but they nevertheless p

Organic compounds containing the structural element --N=C--S--S--C=N-- are suitable in dilute solution as activators for the accelerated hardening of cyanoacrylate adhesives. As compared with the known accelerators, they have the following advantage: good accelerating action, but they nevertheless permit a long waiting time between application of the activator and application of the adhesive. In addition, they avoid spontaneous, merely superficial hardening. the rotatable roll to a part of the first web between the rotatable roll and the pressure-bonding mechanism; reducing tension of the first web between the rotatable roll and the pressure-bonding mechanism by transferring slack in the first web; and holding the first web of material against a movable surface while the first web of material is accelerated. 9. The method as claimed in claim 8, wherein moving the first web of material includes feeding the first web of material to a position adjacent to a rotating element. 10. The method as claimed in claim 9, wherein the rotating element is a belt. 11. The method as claimed in claim 8, wherein the first web of material is substantially free throughout the second path from contact with the second web of moving material. 12. The method as claimed in claim 8, wherein: changing the second path includes moving a rotation element closer to the second web of moving material; and the first web of material is pushed closer to the second web of moving material by movement of the rotation element. 13. The method as claimed in claim 12, wherein the rotation element is at least one roller. 14. The method as claimed in claim 12, wherein the rotation element is at least part of at least one belt. 15. The method as claimed in claim 8, wherein the movable surface is at least one vacuum belt. 16. The method as claimed in claim 8, further comprising changing the first path to define a fourth path intersecting with the third path. 17. The method as claimed in claim 16, wherein changing the first path includes moving a rotation element closer to the first web of material; and the second web of moving material is pushed closer to the first web of material by movement of the rotation element. 18. A method of splicing a first web of material to a second web of moving material in a web splicer, comprising the steps of: providing a web path through the splicer through which the first web of material is movable; passing the first web of material at least partially around a rotatable roll; passing the first web of material partly through the web path; moving an end of the first web of material toward the second web of material to change the web path taken by the first web through the splicer; accelerating the first web of material to a speed of the second web of moving material; passing the first and second webs of material through a rotatable pressure-bonding mechanism; actuating the rotatable pressure-bonding mechanism to bond the first and second webs of material together; driving the rotatable roll while actuating the rotatable pressure-bonding mechanism; transferring slack in the first web by driving the rotatable roll, the rotatable roll transferring slack of the first web from upstream of the rotatable roll to a part of the first web between the rotatable roll and the pressure-bonding mechanism; reducing tension of the first web, between the rotatable roll and the pressure-bonding mechanism by transferring slack in the first web; and holding the first web against a surface while the first web is accelerated. 19. The method as claimed in claim 18, wherein the first web of material is moved via an actuator pushing the first web of material into a different web path. 20. The method as claimed 19, wherein the first web is moved by a rotation element actuated by the actuator. 21. The method as claimed in claim 20, the rotation element is at least one roller. 22. The method as claimed in claim 20, wherein the rotation element is at least part of at least one belt. 23. The method as claimed in claim 18, wherein the first web is held via vacuum force against the surface. 24. The method as claimed in claim 18, wherein the first web of material is moved by a rotation element. 25. The method as claimed in claim 24, wherein the rotation element is at least one roller. 26. The method as claimed in claim 24, wherein the rotation element is at least one belt. 27. The method as claimed in cla