Process for softening an absorbent laminate

Plastic and nonmetallic article shaping or treating: processes – With severing – removing material from preform mechanically,... – Making hole or aperture in article

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264343, B29D 720, B29C 2500

Patent

active

044863748

ABSTRACT:
Laminates of film of a hydrophilic polymer and adhered substrates are softened by applying a nonvolatile aliphatic compound to at least one surface.

REFERENCES:
patent: 3926891 (1975-12-01), Gross
patent: 3980663 (1976-09-01), Gross
patent: 4066078 (1978-01-01), Berg
patent: 4076673 (1978-02-01), Burkholder
patent: 4128686 (1978-12-01), Kyle
patent: 4263363 (1981-04-01), Buck
patent: 4269188 (1981-05-01), Nishizawa
patent: 4310593 (1982-01-01), Gross
patent: 4413995 (1983-11-01), Korpman

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