Plastic baby bottles, other blow molded articles, and processes for their manufacture
AssigneeEastman Chemical Company
InventorsThomas Joseph Pecorini, Spencer Allen Gilliam, Alan Keith Phillips
Life of this patent
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Abstract
The invention is generally directed to baby bottles and other articles produced by blow molding from polymeric materials having glass transition temperatures ranging from 100° C. to 130° C., as well as to processes for producing them. These articles can be exposed to boiling water and can be produced by using a suitable combination of a stretch ratio of less than 3 and a preform temperature at least 20° C. greater than the glass transition temperature (Tg) of the polymeric material.
Claims17
A blow molded article having a shrinkage of 5% or less after immersion in boiling water for one hour, comprising a polymeric material having a Tg of from 100° C. to 130° C.
A blow molded bottle formed of a polymeric material, wherein said polymeric material comprises terephthalic acid residues, 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues, and 1,4-cyclohexanedimethanol residues, wherein said polymeric material has a Tg from 100 to 130° C., wherein said bottle has a transmission ratio greater than 0.80, wherein said bottle displays shrinkage of 5% or less after immersion in boiling water for one hour.
Dependencies are inferred from the claim text.