摘要:
In preferred embodiments methods and apparatuses can produce articles that have formable material. The articles may be mono and multilayer. The articles can be formed by various methods.
摘要:
Provided is a melt composition for a heat shrinkable foam structure that includes at least one base polymer and a blowing agent made from at least one heat-activated chemical compound encapsulated by a plurality of polymeric shells. The melt composition may also include a crosslinking promoter or other additives. Also provided is a method for making a heat-shrinkable polymer foam tubing. A melt composition containing at least one base polymer material having a melt temperature and a blowing agent having an activation temperature is provided. The melt composition is mixed at an elevated temperature. The melt composition is then extruded through a die at a high temperature. The extruded foam tube is then processed, often heat-processed. Additionally provided is a heat shrinkable foamed polymer tube containing an inner layer and an outer layer of an extruded foamed polymer tube, where each layer is made from at least one base polymer and a blowing agent and the blowing agent includes a heatactivated chemical compound encapsulated in a plurality of polymer shells.
摘要:
The present invention relates to a material for repairing damaged painted surfaces, wherein said material includes a paint layer (18) which is capable of deformation and which is made of microcapsules (20) held together by a binder (22). The paint (24) is contained in the microcapsules (20) in the form of paint droplets or powdered paint particles. The microcapsules (20) and/or the binder (22) are preferably made from a material that becomes tacky under the action of heat.