초록 ▼

Disclosed is a method for providing accelerated release of a blowing agent from a solid, non-perforated plastic foam. The method relates (a) providing the solid, non-perforated plastic foam having the blowing agent and a permeability modifier therein and (b) perforating the foam at its surface to fo

Disclosed is a method for providing accelerated release of a blowing agent from a solid, non-perforated plastic foam. The method relates (a) providing the solid, non-perforated plastic foam having the blowing agent and a permeability modifier therein and (b) perforating the foam at its surface to form a multiplicity of channels extending from the surface into the foam. The channels are in gaseous communication with the environment outside the foam and provide accelerated release of blowing agent.

대표청구항 ▼

A method for providing accelerated release of a blowing agent from a solid, non-perforated polyethylene foam, comprising: a) providing the solid, non-perforated polyethylene foam having the blowing agent and a permeability modifier therein; b) perforating the solid, non-perforated polyethylene foam

A method for providing accelerated release of a blowing agent from a solid, non-perforated polyethylene foam, comprising: a) providing the solid, non-perforated polyethylene foam having the blowing agent and a permeability modifier therein; b) perforating the solid, non-perforated polyethylene foam at a surface to form a multiplicity of channels extending from the surface therein free of direction with respect to the longitudinal extension of the non-perforated foam.