Stock material or miscellaneous articles – Hollow or container type article – Nonself-supporting tubular film or bag
Patent
1991-03-18
1992-08-04
Sluby, P. C.
Stock material or miscellaneous articles
Hollow or container type article
Nonself-supporting tubular film or bag
4284231, 4284411, 264230, B29D 2200, B32B 2700
Patent
active
051357860
ABSTRACT:
A shape memory transparent body formed from a shape memory transparent polymer having a glass transition point higher than the temperature at which the transparent body is used, said transparent body remembering a basic shape, taking on a second shape upon heating to a temperature higher than the glass transition point and subsequent cooling to a temperature lower than the glass transition point, with the transparent body kept deformed by an external force for the setting of the deformed shape, and restoring the basic shape upon heating to a temperature higher than the glass transition point; and a method of using the shape memory transparent body.
REFERENCES:
patent: 3563973 (1971-02-01), Arditti et al.
patent: 3984516 (1976-10-01), Carrow
patent: 4505421 (1985-03-01), Gen et al.
Pat. Abst. of Japan, vol. 11, No. 163, May 26, 1987, JP A 61-293 214 Mitsubishi Heavy Ind. Ltd., Dec. 24, 1986.
Japanese Patent Gazette, Section Ch., Week W52, Feb. 3, 1976, Derwent Publ. Ltd., London GB No. 85323W/52-JP A-50065541 (Dainippon Printing K.K.).
Hayashi Shun-ichi
Wakita Yoshiaki
Mitsubishi Jukogyo Kabushiki Kaisha
Sluby P. C.
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