Plastic and nonmetallic article shaping or treating: processes – Direct application of fluid pressure differential to... – Differential temperature conditioning
Reexamination Certificate
2006-05-02
2006-05-02
Colaianni, Michael P. (Department: 1732)
Plastic and nonmetallic article shaping or treating: processes
Direct application of fluid pressure differential to...
Differential temperature conditioning
C264S210500, C264S210700, C264S235800, C264S237000, C264S288400, C264S290200, C264S327000, C264S346000, C264S348000
Reexamination Certificate
active
07037461
ABSTRACT:
A method of stretching films in which all or a portion of the width of the film is cooled during or just after stretching so as to improve the uniformity of the film. The includes stretching a polymeric film in a tenter that grasps the film with a plurality of clips along the opposing edges of the film and propels the clips to thereby stretch the film. The tenter includes driven clips and idler clips, with at least one idler clip between respective pairs of driven clips. The cooling is done so as to improve the uniformity of the clip spacing relative to the spacing obtained at otherwise identical process conditions without such cooling.
REFERENCES:
patent: 2618012 (1952-11-01), Milne
patent: 2851733 (1958-09-01), Pangonis et al.
patent: 2896262 (1959-07-01), Herrmann
patent: 3046599 (1962-07-01), Nicholas et al.
patent: 3132375 (1964-05-01), Koppehele
patent: 3150433 (1964-09-01), Kampf
patent: 3231642 (1966-01-01), Goldman et al.
patent: 3271495 (1966-09-01), Gronholz et al.
patent: 3396216 (1968-08-01), Yumoto et al.
patent: 3502766 (1970-03-01), Tsuruta et al.
patent: 3510552 (1970-05-01), Tsuruta et al.
patent: 3551546 (1970-12-01), Gosper et al.
patent: 3890421 (1975-06-01), Habozit
patent: 4237088 (1980-12-01), Yoshimura et al.
patent: 4330499 (1982-05-01), von und zu Aufsess et al.
patent: 4525317 (1985-06-01), Okada et al.
patent: 4595738 (1986-06-01), Hufnagel et al.
patent: 4652409 (1987-03-01), Leese et al.
patent: 4675582 (1987-06-01), Hommes et al.
patent: 4825111 (1989-04-01), Hommes et al.
patent: 4853602 (1989-08-01), Hommes et al.
patent: 5036262 (1991-07-01), Schonbach
patent: 5051225 (1991-09-01), Hommes et al.
patent: 5072493 (1991-12-01), Hommes et al.
patent: 5429785 (1995-07-01), Jolliffe
patent: 5575968 (1996-11-01), Seo et al.
patent: 5753172 (1998-05-01), Forrest, Jr. et al.
patent: 6303067 (2001-10-01), Wong et al.
patent: 6358457 (2002-03-01), Wong et al.
patent: 2250625 (1975-06-01), None
patent: 2 317 076 (1977-02-01), None
patent: WO 98 25753 (1998-06-01), None
patent: WO 98/25754 (1998-06-01), None
Derwent Abstract of KR 9006301B, 1991, Derwent Information Limited.
Bartusiak Joseph T.
Denker Martin E.
Ferguson Anthony B.
Hanschen Thomas P.
Jackson Jeffery N.
3M Innovative Properties Company
Colaianni Michael P.
Poe Michael I.
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