Method for preparing a porous structure by stretching a resin sh

Details Method for preparing a porous structure by stretching a resin sh Method for preparing a porous structure by stretching a resin sh

1975-02-19

1977-05-17

White, Robert F.

Plastic and nonmetallic article shaping or treating: processes

With severing, removing material from preform mechanically,...

Making hole or aperture in article

264DIG47, B29D 2700, B29D 724

Patent

active

040242137

ABSTRACT:
A resin sheet having a porous layered structure useful as an electrode separator for electric cells, said sheet comprising (a) an olefin resin, (b) a finely divided inorganic substance, and (c) at least one substance selected from the group consisting of (i) a water-swellable thermoplastic resin, (ii) a water-insoluble or difficultly water-soluble hydrophilic nonionic surface active agent, and (iii) a water-insoluble difficultly water-soluble hydrophilic anionic surface active agent, said sheet including fine pores arranged throughout its cross section in a plurality of layers, at least some of them forming open cells.
The above sheet is prepared by a process comprising fabricating a mixture containing the above components (a), (b) and (c) into a sheet, and stretching the sheet in at least one direction.

REFERENCES:
patent: 3247025 (1966-04-01), Beaulieu
patent: 3351495 (1967-11-01), Larsen et al.
patent: 3536796 (1970-10-01), Rock
patent: 3551538 (1970-12-01), Yamamoto et al.
patent: 3679538 (1972-07-01), Druin et al.
patent: 3725520 (1973-04-01), Suzuki
patent: 3839516 (1974-10-01), Williams et al.
patent: 3853601 (1974-12-01), Taskier
patent: 3903234 (1975-09-01), Ikeda et al.

Affiliated with

Also associated with

Rating

Method for preparing a porous structure by stretching a resin sh does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for preparing a porous structure by stretching a resin sh, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for preparing a porous structure by stretching a resin sh will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1834720