Plastic and nonmetallic article shaping or treating: processes – Carbonizing to form article – Agglomeration or accretion
Patent
1987-02-09
1989-09-26
Lowe, James
Plastic and nonmetallic article shaping or treating: processes
Carbonizing to form article
Agglomeration or accretion
264119, 264122, 264126, 264250, 264257, 264521, 264544, 264DIG65, B29C 4514, B29C 5916, B29C 4352
Patent
active
048698555
ABSTRACT:
Method for manufacturing a molded article, for use, for example as a fluid filter or as a preform for a structural composite, is prepared from a batt of nonwoven structural fibers and a binder material, such as binder fibers or a thermoresponsive resin. The batt is stabilized by exposing it to a temperature slightly below the melting point of the binder material, so that the binder material becomes tacky and bonds the fiber materials at the surface of the batt. By exposing the batt to the heat for only a few seconds, only the binder material at the surface of the batt bonds the structural fibers; the structural fibers within the batt remain unbonded. Accordingly, the batt is "skinned", so that it is stiff enough to be handled, but is still flexible enough that it can be molded into complex shapes. The molding is effected in a mold in which heated air is drawn through the batt to force it to assume the contours of the mold.
REFERENCES:
patent: 2459804 (1949-01-01), Francis
patent: 2464112 (1949-03-01), Francis
patent: 2847712 (1958-08-01), Pollard et al.
patent: 3443007 (1969-05-01), Hardy
patent: 3699203 (1972-10-01), Oshima
patent: 3879019 (1975-04-01), Chapman
patent: 4195112 (1980-03-01), Sheard
patent: 4265954 (1981-05-01), Romanek
patent: 4380523 (1983-04-01), Lind
patent: 4385955 (1983-05-01), Doerfling
patent: 4417931 (1983-11-01), Li
patent: 4508673 (1985-04-01), Stahl et al.
patent: 4568581 (1986-02-01), Peoples
patent: 4609519 (1986-09-01), Pichard
patent: 4664705 (1987-05-01), Horton
Farley Radcliffe W.
Twilley Ian C.
Allied Signal Inc.
Antonis William N.
Decker Ken C.
Durkin II Jeremiah F.
Lowe James
LandOfFree
Method of manufacturing molded articles 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 manufacturing molded articles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of manufacturing molded articles will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-186188