US 2001/0020046 A1Published application

Blow-molded foamed films of polyester resin

AssigneeSinco Ricerche S.p.A.

InventorsHussein Al Ghatta, Tonino Severini

Life of this patent

Estimating the term…

A blown foamed film of polyester resin, obtained by blow-molding a foamed tubular sheet at the outlet of a foaming extruder.

Dependent claims

A blown foamed film of polyester resin, obtained by blow-molding a foamed tubular sheet at the outlet of a foaming extruder.

Dependencies are inferred from the claim text.

C08J 9/122
By a physical blowing agent: hydrogen, oxygen, CO2, nitrogen or noble gases
B29C 48/0018
Combinations of extrusion moulding with other shaping operations: combined with shaping by orienting, stretching or shrinking, e.g. film blowing
B29C 48/10
Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels: flexible, e.g. blown foils
B29K 2105/04
Condition, form or state of moulded material or of the material to be shaped: cellular or porous

From the US filing history. Foreign family members aren’t listed.

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US 2001/0020046 A1Published application

AssigneeSinco Ricerche S.p.A.

InventorsHussein Al Ghatta, Tonino Severini

Estimating the term…

A blown foamed film of polyester resin, obtained by blow-molding a foamed tubular sheet at the outlet of a foaming extruder.

Dependent claims

A blown foamed film of polyester resin, obtained by blow-molding a foamed tubular sheet at the outlet of a foaming extruder.

Dependencies are inferred from the claim text.

C08J 9/122
By a physical blowing agent: hydrogen, oxygen, CO2, nitrogen or noble gases
B29C 48/0018
Combinations of extrusion moulding with other shaping operations: combined with shaping by orienting, stretching or shrinking, e.g. film blowing
B29C 48/10
Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels: flexible, e.g. blown foils
B29K 2105/04
Condition, form or state of moulded material or of the material to be shaped: cellular or porous