Cap liner for hot filled container and method

Details Cap liner for hot filled container and method Cap liner for hot filled container and method

1991-09-06

1997-02-11

Seidleck, James J.

Bottles and jars

Closures

Cap type

215347, 215349, 428 664, 428 365, 4283197, B65D 5304

Patent

active

056012004

ABSTRACT:
A cap liner and method for producing a cap liner which is particularly suited for use with a cap employed on a hot filled container. The liner includes a disc having one or more outer layers and an intermediate foamed layer bonded thereto. Preferably, the outer and intermediate layers are formed of homogenous admixtures of polypropylene and polyethylene. The method for producing the cap liner involves mechanically mixing at room temperature polypropylene and polyethylene to form a desired homogenous admixture for each layer, and then co-extruding the admixtures at approximately 320.degree.-390.degree. F. to form the bonded outer and intermediate layers. Alternatively, the intermediate layer may be formed of foamed polyethylene.

REFERENCES:
patent: 3595419 (1969-09-01), Dukess
patent: 3819460 (1974-06-01), Dukess
patent: 3917100 (1975-11-01), Dukess
patent: 3963845 (1976-06-01), Dukess
patent: 3976217 (1976-08-01), Dukess
patent: 4057159 (1977-11-01), Fillmore et al.
patent: 4089434 (1978-05-01), Tagalakis et al.
patent: 4107247 (1978-08-01), Dukess
patent: 4121728 (1978-10-01), Tagalakis et al.
patent: 4206165 (1980-06-01), Dukess
patent: 4734312 (1988-03-01), Sugiyama
patent: 4807772 (1989-02-01), Schloss
patent: 4810570 (1989-03-01), Rutien et al.
patent: 4818577 (1989-04-01), Ou-Yang
patent: 4911978 (1990-03-01), Tsubone et al.
patent: 4935273 (1990-06-01), Ou-Yang
patent: 4937139 (1990-06-01), Genske et al.
patent: 5000992 (1991-03-01), Kelch
patent: 5079057 (1992-01-01), Heider

Affiliated with

Also associated with

Rating

Cap liner for hot filled container and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cap liner for hot filled container and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cap liner for hot filled container and method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-336084