Method of pressurizing treatment of pre-foamed particles of poly

Details Method of pressurizing treatment of pre-foamed particles of poly Method of pressurizing treatment of pre-foamed particles of poly

1982-12-07

1984-04-17

Foelak, Morton

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

By gas forming or expanding

264DIG9, 264DIG15, 521 58, C08J 922

Patent

active

044433930

ABSTRACT:
A method for pressurizing pre-foamed particles of a polyolefin resin by maintaining the pre-foamed particles in an atmosphere of a pressurized gas to impart a predetermined internal pressure thereto, which comprises first maintaining the particles under a pressure which does not cause shrinkage to the particles, and then increasing the applied pressure gradually under conditions which do not cause shrinkage to the particles.

REFERENCES:
patent: 2986537 (1961-05-01), Chaurueton
patent: 2998396 (1961-08-01), Nickolls
patent: 3013996 (1961-12-01), Pollard et al.
patent: 3126432 (1964-03-01), Schuur
patent: 3631133 (1971-12-01), Balligelli
patent: 3725320 (1973-04-01), Wang
patent: 4150077 (1979-04-01), Slocumb
patent: 4366263 (1982-12-01), Sato et al.

Affiliated with

Also associated with

Rating

Method of pressurizing treatment of pre-foamed particles of poly 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 of pressurizing treatment of pre-foamed particles of poly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of pressurizing treatment of pre-foamed particles of poly will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-94942